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CHUẨN ĐOÁN VÀ SỬA CHỮA LỖI ABS FORD U3000 U3000-49 U3000-48

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Anti-Lock Brake System (ABS) and Stability Control – Diagnosis and Testing • 2012 Ford Focus 
Anti-Lock Brake System (ABS) and Stability Control – Diagnosis and Testing

206-09 Anti-Lock Brake System (ABS) and Stability Control 2012 – 2014 Focus
Diagnosis and Testing Procedure revision date: 03/5/2013

Anti-Lock Brake System (ABS) and Stability Control

Diagnostic Trouble Code (DTC) Chart

DTC Chart: Anti-Lock Brake System (ABS) Module

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Anti-Lock Brake System (ABS) DTC Chart

DTC Description Action
B10DF:46 Master Cylinder
Isolation Valve:
Calibration/Parameter
Memory Failure		 This DTC sets due to an internal failure of the ABS module or due to a
calibration failure between the HCU and the ABS module.
CLEAR the DTC and REPEAT the self-test. If the DTC returns, INSTALL a
new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0001:01 TCS Control Channel
“A” Valve 1: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).

 

C0002:01 TCS Control Channel
“A” Valve 2: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0003:01 TCS Control Channel
“B” Valve 1: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0004:01 TCS Control Channel
“B” Valve 2: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0010:01 Left Front Inlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0011:01 Left Front Outlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0014:01 Right Front Inlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0015:01 Right Front Outlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).

 

C0018:01 Left Rear Inlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0019:01 Left Rear Outlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C001C:01 Right Rear Inlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C001D:01 Right Rear Outlet
Control: General
Electrical Failure		 This DTC indicates that part of the ABS module has failed internally.
CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0020:01 ABS Pump Motor
Control: General
Electrical Failure		 GO to Pinpoint Test H
C0020:1C ABS Pump Motor
Control: Circuit
Voltage Out of Range		 GO to Pinpoint Test H
C0020:71 ABS Pump Motor
Control: Actuator
Stuck		 GO to Pinpoint Test H
C0030:07 Left Front Tone
Wheel: Mechanical
Failure		 GO to Pinpoint Test B
C0031:07 Left Front Wheel
Speed Sensor:
Mechanical Failure		 GO to Pinpoint Test B
C0031:11 Left Front Wheel
Speed Sensor: Circuit
Short to Ground		 GO to Pinpoint Test O

 

C0031:15 Left Front Wheel
Speed Sensor: Circuit
Short to Battery or
Open		 GO to Pinpoint Test O
C0031:4A Left Front Wheel
Speed Sensor:
Incorrect Component
Installed		 This DTC sets when the incorrect type of wheel speed sensor has been
installed, bi-directional versus non-bi-directional. For information on wheel
speed sensor types,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System
Operation and Component Description (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Description and Operation).
VERIFY the correct wheel speed sensor has been installed (part number
is stamped on the sensor). If the incorrect wheel speed sensor has been
installed, INSTALL a new wheel speed sensor.
REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
CYCLE the ignition. DRIVE the vehicle and reach a speed of at least 20
km/h (12 mph) for the ABS module carry out a wheel speed sensor selftest.
If the correct wheel speed sensor is installed, INSTALL a new ABS
module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0033:07 Right Front Tone
Wheel: Mechanical
Failure		 GO to Pinpoint Test B
C0034:07 Right Front Wheel
Speed Sensor:
Mechanical Failure		 GO to Pinpoint Test B
C0034:11 Right Front Wheel
Speed Sensor: Circuit
Short to Ground		 GO to Pinpoint Test O
C0034:15 Right Front Wheel
Speed Sensor: Circuit
Short to Battery or
Open		 GO to Pinpoint Test O

 

C0034:4A Right Front Wheel
Speed Sensor:
Incorrect Component
Installed		 This DTC sets when the incorrect type of wheel speed sensor has been
installed, bi-directional versus non-bi-directional. For information on wheel
speed sensor types,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System
Operation and Component Description (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Description and Operation).
VERIFY the correct wheel speed sensor has been installed (part number
is stamped on the sensor). If the incorrect wheel speed sensor has been
installed, INSTALL a new wheel speed sensor.
REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
CYCLE the ignition. DRIVE the vehicle and reach a speed of at least 20
km/h (12 mph) for the ABS module carry out a wheel speed sensor selftest.
If the correct wheel speed sensor is installed, INSTALL a new ABS
module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0036:07 Left Rear Tone
Wheel: Mechanical
Failure		 GO to Pinpoint Test B
C0037:07 Left Rear Wheel
Speed Sensor:
Mechanical Failure		 GO to Pinpoint Test B
C0037:11 Left Rear Wheel
Speed Sensor: Circuit
Short to Ground		 GO to Pinpoint Test P
C0037:15 Left Rear Wheel
Speed Sensor: Circuit
Short to Battery or
Open		 GO to Pinpoint Test P

 

C0037:4A Left Rear Wheel
Speed Sensor:
Incorrect Component
Installed		 This DTC sets due to incomplete IVD initialization procedure or when the
incorrect type of wheel speed sensor has been installed, bi-directional
versus non-bi-directional. For information on wheel speed sensor types,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System
Operation and Component Description (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Description and Operation).
If ABS module Diagnostic Trouble Codes (DTCs) U2300:51 or U2300:56
is also present, DIAGNOSE those Diagnostic Trouble Codes (DTCs)
before diagnosing DTC C0037:4A. DIAGNOSE U2300:51 before
diagnosing U2300:56.
If ABS module Diagnostic Trouble Codes (DTCs) U2300:51 or U2300:56
are not present, VERIFY the correct wheel speed sensor has been
installed (part number is stamped on the sensor). If the incorrect wheel
speed sensor has been installed, INSTALL a new wheel speed sensor.
REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
CYCLE the ignition. DRIVE the vehicle and reach a speed of at least 20
km/h (12 mph) for the ABS module carry out a wheel speed sensor selftest.
If the correct wheel speed sensor is installed, INSTALL a new ABS
module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0039:07 Right Rear Tone
Wheel: Mechanical
Failure		 GO to Pinpoint Test B
C003A:07 Right Rear Wheel
Speed Sensor:
Mechanical Failure		 GO to Pinpoint Test B
C003A:11 Right Rear Wheel
Speed Sensor: Circuit
Short to Ground		 GO to Pinpoint Test P
C003A:15 Right Rear Wheel
Speed Sensor: Circuit
Short to Battery or
Open		 GO to Pinpoint Test P

 

C003A:4A Right Rear Wheel
Speed Sensor:
Incorrect Component
Installed		 This DTC sets due to incomplete IVD initialization procedure or when the
incorrect type of wheel speed sensor has been installed, bi-directional
versus non-bi-directional. For information on wheel speed sensor types,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System
Operation and Component Description (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Description and Operation).
If ABS module Diagnostic Trouble Codes (DTCs) U2300:51 or U2300:56
is also present, DIAGNOSE those Diagnostic Trouble Codes (DTCs)
before diagnosing DTC C003A:4A. DIAGNOSE U2300:51 before
diagnosing U2300:56.
If ABS module Diagnostic Trouble Codes (DTCs) U2300:51 or U2300:56
are not present, VERIFY the correct wheel speed sensor has been
installed (part number is stamped on the sensor). If the incorrect wheel
speed sensor has been installed, INSTALL a new wheel speed sensor.
REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
CYCLE the ignition. DRIVE the vehicle and reach a speed of at least 20
km/h (12 mph) for the ABS module carry out a wheel speed sensor selftest.
If the correct wheel speed sensor is installed, INSTALL a new ABS
module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0040:64 Brake Pedal Switch
“A”: Signal Plausibility
Failure		 GO to Pinpoint Test C
C0040:87 Brake Pedal Switch
“A”: Missing Message		 GO to Pinpoint Test I
C0044:01 Brake Pressure
Sensor “A”: General
Electrical Failure		 DIAGNOSE DTC C0040:64 before diagnosing this DTC.
If DTC C0040:64 is not present, RECORD and then CLEAR all ABS
module Diagnostic Trouble Codes (DTCs).
CYCLE the ignition from ON to OFF and back to ON. CARRY OUT the
ABS module self-test. If this DTC returns, INSTALL a new ABS module
and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).

 

C0044:28 Brake Pressure
Sensor “A”: Signal
Bias Level Out of
Range/Zero
Adjustment Failure		 DIAGNOSE DTC C0040:64 before diagnosing this DTC.
If Diagnostic Trouble Code (DTC) C0040:64 is not present, RECORD and
CLEAR all ABS module Diagnostic Trouble Codes (DTCs). CYCLE the
ignition from ON to OFF and back to ON. CARRY OUT the IVD
Initialization procedure, FOLLOW the diagnostic scan tool instructions.
If the module fails the initialization procedure, INSTALL a new ABS
module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
If the module passes the initialization procedure, CARRY OUT the ABS
module self-test. If the DTC returns, INSTALL a new ABS module and
HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0044:54 Brake Pressure
Sensor “A”: Missing
Calibration		 DIAGNOSE DTC C0040:64 before diagnosing this DTC.
If Diagnostic Trouble Code (DTC) C0040:64 is not present, RECORD and
CLEAR all ABS module Diagnostic Trouble Codes (DTCs). CYCLE the
ignition from ON to OFF and back to ON. CARRY OUT the IVD
Initialization procedure, FOLLOW the diagnostic scan tool instructions.
If the module fails the initialization procedure, INSTALL a new ABS
module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
If the module passes the initialization procedure, CARRY OUT the ABS
module self-test. If the DTC returns, INSTALL a new ABS module and
HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0044:64 Brake Pressure
Sensor “A”: Signal
Plausibility Failure		 DIAGNOSE DTC C0040:64 before diagnosing this DTC.
If DTC C0040:64 is not present, BLEED the brake system.
REFER to: Brake System Bleeding (206-00 Brake System – General
Information, General Procedures).
CYCLE the ignition from ON to OFF and back to ON. CARRY OUT the
ABS module self-test. If this DTC returns, INSTALL a new ABS module
and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0051:28 Steering Wheel
Position Sensor:
Signal Bias Level Out
of Range/Zero
Adjustment Failure		 GO to Pinpoint Test M

 

C0051:54 Steering Wheel
Position Sensor:
Missing Calibration		 GO to Pinpoint Test M
C0061:28 Lateral Acceleration
Sensor: Signal Bias
Level Out of
Range/Zero
Adjustment Failure		 GO to Pinpoint Test G
C0061:2F Lateral Acceleration
Sensor: Signal Erratic		 GO to Pinpoint Test G
C0061:54 Lateral Acceleration
Sensor: Missing Calibration		 This DTC sets if the stability sensors in the RCM have not been calibrated
or the calibration has been lost. CARRY OUT the IVD Initialization
procedure, FOLLOW the diagnostic scan tool instructions.
If the module fails the initialization procedure, VERIFY the RCM is
installed correctly and that the fasteners are tightened to specifications.
REINSTALL or INSTALL new as necessary.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
If the RCM is OK, CARRY OUT the RCM self-test. RETRIEVE and
RECORD any Diagnostic Trouble Codes (DTCs).
REFER to: Airbag Supplemental Restraint System (SRS) – Vehicles With:
First and Second Row Supplemental Restraint System (SRS) With Driver
Knee Airbag (501-20B Supplemental Restraint System, Diagnosis and
Testing).
If the module passes the initialization procedure, CLEAR the Diagnostic
Trouble Codes (DTCs). CYCLE the ignition from ON to OFF and back to
ON. CARRY OUT the ABS module self-test. If the DTC returns, INSTALL
a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0061:64 Lateral Acceleration
Sensor: Signal
Plausibility Failure		 GO to Pinpoint Test G
C0062:01 Longitudinal
Acceleration Sensor:
General Electrical
Failure		 This DTC sets if there is an internal failure of the stability sensor inside the
RCM.
CLEAR the Diagnostic Trouble Codes (DTCs). CYCLE the ignition from
ON to OFF and back to ON. CARRY OUT the ABS module self-test. If the
DTC returns, INSTALL a new RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).

 

C0062:28 Longitudinal
Acceleration Sensor:
Signal Bias Level Out
of Range/Zero
Adjustment Failure		 GO to Pinpoint Test G
C0062:4A Longitudinal
Acceleration Sensor:
Incorrect Component
Installed		 This DTC sets due to incomplete or improper Programmable Module
Installation (PMI) procedures or when an incorrect RCM has been
installed.
CHECK vehicle service history for recent service actions related to the
RCM. If there have been recent service actions with the RCM, REPEAT
the Programmable Module Installation (PMI) procedure as directed by the
diagnostic scan tool.
If there have been no recent service actions related to the RCM, INSTALL
a new RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
Be sure to follow all diagnostic scan tool instructions as they relate to
Programmable Module Installation (PMI).
C0062:54 Longitudinal
Acceleration Sensor:
Missing Calibration		 This DTC sets if the stability sensors in the RCM have not been calibrated
or the calibration has been lost. CARRY OUT the IVD Initialization
procedure, FOLLOW the diagnostic scan tool instructions.
If the module fails the initialization procedure, VERIFY the RCM is
installed correctly and that the fasteners are tightened to specifications.
REINSTALL or INSTALL new as necessary.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
If the RCM is OK, CARRY OUT the RCM self-test. RETRIEVE and
RECORD any Diagnostic Trouble Codes (DTCs).
REFER to: Airbag Supplemental Restraint System (SRS) – Vehicles With:
First and Second Row Supplemental Restraint System (SRS) With Driver
Knee Airbag (501-20B Supplemental Restraint System, Diagnosis and
Testing).
If the module passes the initialization procedure, CLEAR the Diagnostic
Trouble Codes (DTCs). CYCLE the ignition from ON to OFF and back to
ON. CARRY OUT the ABS module self-test. If the DTC returns, INSTALL
a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
C0062:64 Longitudinal
Acceleration Sensor:
Signal Plausibility
Failure		 GO to Pinpoint Test G

 

C0062:76 Longitudinal
Acceleration Sensor:
Wrong Mounting
Position		 Due to the nature of the longitudinal acceleration sensor, the RCM must
be installed in the correct orientation to the centerline of the vehicle. This
DTC sets if the RCM has been installed in the wrong position.
VERIFY the RCM is installed correctly and the fasteners are tightened to
specifications. REINSTALL or INSTALL new as necessary.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
If the RCM is OK, CARRY OUT the RCM self-test. RETRIEVE and
RECORD any Diagnostic Trouble Codes (DTCs).
REFER to: Airbag Supplemental Restraint System (SRS) – Vehicles With:
First and Second Row Supplemental Restraint System (SRS) With Driver
Knee Airbag (501-20B Supplemental Restraint System, Diagnosis and
Testing).
C0063:01 Yaw Rate Sensor:
General Electrical
Failure		 This DTC sets if there is an internal failure of the stability sensor inside the
RCM.
CLEAR the Diagnostic Trouble Codes (DTCs). CYCLE the ignition from
ON to OFF and back to ON. CARRY OUT the ABS module self-test. If the
DTC returns, INSTALL a new RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
C0063:28 Yaw Rate Sensor:
Signal Bias Level Out
of Range/Zero
Adjustment Failure		 GO to Pinpoint Test G
C0063:2F Yaw Rate Sensor:
Signal Erratic		 GO to Pinpoint Test G
C0063:64 Yaw Rate Sensor:
Signal Plausibility
Failure		 GO to Pinpoint Test G
C006B:00
Stability System
Active Too Long: No
Sub Type Information		 This DTC is for informational purposes only and sets along with one or more stability
sensor Diagnostic Trouble Codes (DTCs). RETRIEVE and DIAGNOSE all other
ABS module Diagnostic Trouble Codes (DTCs).
C0072:68 Brake Temperature
Too High: Event
Information		 This DTC sets when the temperature of the brake discs/drums, as calculated by the
ABS module, exceeds a predetermined threshold, 450°C (841.4°F). This DTC
usually sets due to the stability system being activated too long, excessive traction
control events, excessive anti-lock events, etc. RETRIEVE and DIAGNOSE all other
ABS module Diagnostic Trouble Codes (DTCs).
C1A41:64 Clutch Pedal Sensor:
Signal Plausibility
Failure		 GO to Pinpoint Test N

 

P1701:81 Reverse Engagement
Error: Invalid Serial
Data Received		 This DTC sets when the ABS module receives invalid network data from
the TCM (automatic transmission) or PCM (manual transmission).
RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes
(DTCs) in the TCM or PCM. For TCM Diagnostic Trouble Codes (DTCs),
REFER to: Automatic Transmission (307-01 Automatic Transmission –
Vehicles With: 6-Speed PowerShift Transmission – DPS6/6DCT250) .
For PCM Diagnostic Trouble Codes (DTCs),
REFER to: Electronic Engine Controls (303-14A Electronic Engine
Controls – 2.0L Duratec-HE (125kW/170PS) – MI4, Diagnosis and Testing).
U0001:88 High Speed CAN
Communication Bus:
Bus Off		 The module could not communicate on the network at a point in time. The
fault is not currently present since the module had to communicate with
the diagnostic scan tool to report this DTC.
VERIFY the integrity of the connectors and wiring. Refer to Wiring
Diagrams Cell 14 for schematic and connector information.
U0028:55 Vehicle
Communication Bus
“A”: Not Configured		 The ABS module and the RCM exchange and store identification
information for future reference. This DTC sets due to incomplete or
improper Programmable Module Installation (PMI) procedures.
CHECK vehicle service history for recent service actions related to the
RCM and ABS module. If there have been recent service actions with one
or both of the modules, REPEAT the Programmable Module Installation
(PMI) procedure as directed by the diagnostic scan tool.
If there have been no recent service actions, INSTALL a new RCM to
correct the failure to retain configuration data.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
U0028:88 Vehicle
Communication Bus
“A”: Bus Off		 GO to Pinpoint Test G
U0100:00 Lost Communication
With ECM/PCM “A”:
No Sub Type
Information		 GO to Pinpoint Test I
U0101:00 Lost Communication
With TCM: No Sub
Type Information		 GO to Pinpoint Test J
U0126:00 Lost Communication
With Steering Angle
Sensor Module: No
Sub Type Information		 GO to Pinpoint Test K

 

U0140:00 Lost Communication
With Body Control
Module: No Sub Type
Information		 GO to Pinpoint Test D
U0151:00 Lost Communication
With Restraints
Control Module: No
Sub Type Information		 GO to Pinpoint Test G
U0300:00 Internal Control
Module Software
Incompatibility: No
Sub Type Information		 GO to Pinpoint Test R
U0300:51 Internal Control
Module Software
Incompatibility: Not
Programmed		 CHECK vehicle service history for recent service actions related to the
ABS module. This DTC sets due to incomplete or improper flash
programming procedures.
If there have been recent service actions with the ABS module, REPEAT
the programming procedure as directed by the diagnostic scan tool.
If there have been no recent service actions, INSTALL a new ABS module
and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
U0401:00 Invalid Data Received
From ECM/PCM “A”:
No Sub Type
Information		 This DTC sets when the ABS module receives invalid network data from the PCM.
RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the
PCM.
REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L
Duratec-HE (125kW/170PS) – MI4, Diagnosis and Testing).
U0401:41 Invalid Data Received
From ECM/PCM “A”:
General Checksum
Failure		 This DTC sets when the ABS module receives invalid network data from the PCM.
RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the
PCM.
REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L
Duratec-HE (125kW/170PS) – MI4, Diagnosis and Testing).
U0401:68 Invalid Data Received
From ECM/PCM “A”:
Event Information		 This DTC sets when the ABS module receives invalid network data from the PCM.
RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the
PCM.
REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L
Duratec-HE (125kW/170PS) – MI4, Diagnosis and Testing).
U0402:68 Invalid Data Received
From TCM: Event
Information		 This DTC sets when the ABS module receives invalid network data from the TCM.
RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the
TCM.
REFER to: Automatic Transmission (307-01 Automatic Transmission – Vehicles
With: 6-Speed PowerShift Transmission – DPS6/6DCT250) .

 

U0428:00 Invalid Data Received
From Steering Angle
Sensor Module: No
Sub Type Information		 GO to Pinpoint Test M
U0428:2F Invalid Data Received
From Steering Angle
Sensor Module:
Signal Erratic		 This is an intermittent DTC that is stored only due to temporary
disturbances of the signals received from the SASM.
If DTC U0428:64 is also present, GO to Pinpoint Test M
If this is the only ABS module DTC retrieved; CLEAR the DTC, TEST
DRIVE the vehicle above 20 km/h (12 mph) and make at least 2 right turns
and 2 left turns. If the DTC returns, GO to Pinpoint Test M If the DTC does
not return, RELEASE the vehicle
U0428:41 Invalid Data Received
From Steering Angle
Sensor Module:
General Checksum
Failure		 If DTC U0126:00 is also present, DIAGNOSE DTC U0126:00 first.
This DTC sets when the ABS module receives invalid network data from
the SASM. RETRIEVE and REPAIR all non-network Diagnostic Trouble
Codes (DTCs) in the SASM.
U0428:61 Invalid Data Received
From Steering Angle
Sensor Module:
Signal Calculation
Failure		 GO to Pinpoint Test M
U0428:62 Invalid Data Received
From Steering Angle
Sensor Module:
Signal Compare
Failure		 GO to Pinpoint Test M
U0428:64 Invalid Data Received
From Steering Angle
Sensor Module:
Signal Plausibility
Failure		 GO to Pinpoint Test M
U0428:68 Invalid Data Received
From Steering Angle
Sensor Module:
Event Information		 GO to Pinpoint Test M
U0452:41 Invalid Data Received
From Restraints
Control Module:
General Checksum
Failure		 If DTC U0151:00 is also present, DIAGNOSE DTC U0151:00 first.
This DTC sets when the ABS module receives invalid network data from
the RCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble
Codes (DTCs) in the RCM.
REFER to: Airbag Supplemental Restraint System (SRS) – Vehicles With:
First and Second Row Supplemental Restraint System (SRS) With Driver
Knee Airbag (501-20B Supplemental Restraint System, Diagnosis and
Testing).

 

CHUẨN ĐOÁN VÀ SỬA CHỮA LỖI ABS FORD U3000 U3000:49 U3000:48
CHUẨN ĐOÁN VÀ SỬA CHỮA LỖI ABS FORD U3000 U3000:49 U3000:48
U0452:4A Invalid Data Received
From Restraints
Control Module:
Incorrect Component
Installed		 This DTC sets when the RCM installed in the vehicle is either the wrong
module, has not been configured or has been configured incorrectly.
CHECK vehicle service history for recent service actions related to the
RCM. If there have been recent service actions with the RCM, REPEAT
the Programmable Module Installation (PMI) procedure as directed by the
diagnostic scan tool.
If there have been no recent service actions, INSTALL a new RCM to
correct the failure to retain configuration data.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental
Restraint System, Removal and Installation).
U0452:86 Invalid Data Received
From Restraints
Control Module:
Signal Invalid		 GO to Pinpoint Test G
U1A14:00 CAN Initialization
Failure: No Sub Type
Information		 CLEAR the DTC. CYCLE the ignition. CARRY OUT the ABS module selftest.
If the DTC returns, INSTALL a new ABS module and HCU assembly to
correct the failure to retain configuration data.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
If the DTC does not return, the condition to set the DTC is not present at
this time. The cause may be intermittent.
U2007:46 Valve(s):
Calibration/Parameter
Memory Failure		 This DTC sets due to an internal failure of the ABS module or due to a
calibration failure between the HCU and the ABS module.
CLEAR the DTC and REPEAT the self-test. If the DTC returns, INSTALL a
new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
U2100:00 Initial Configuration
Not Complete: No
Sub Type Information		 CHECK the service history for recent service actions related to the ABS
module. This DTC sets due to incomplete IVD initialization procedure.
If there have been recent service actions with this module, REPEAT the
IVD initialization procedure as directed by the diagnostic scan tool.
If there have been no recent service actions, INSTALL a new ABS module
and HCU assembly to correct the failure to retain configuration data.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).

 

U2101:00 Control Module
Configuration
Incompatible: No Sub
Type Information		 This DTC sets if the vehicle configuration information sent from the BCM
does not match what is stored in the ABS module.
DIAGNOSE all BCM Diagnostic Trouble Codes (DTCs) and any ABS
module lost communication or invalid data Diagnostic Trouble Codes
(DTCs) that are preset before diagnosing this DTC.
If there are no BCM Diagnostic Trouble Codes (DTCs) or ABS module lost
communication or invalid data Diagnostic Trouble Codes (DTCs) present,
CHECK vehicle service history for recent service actions related to the
ABS module or BCM. This DTC sets due to incomplete or improper flash
programming procedures. If there have been recent service actions with
the ABS module or BCM, REPEAT the programming procedure as
directed by the diagnostic scan tool.
If there have been no recent service actions, INSTALL a new ABS module
and HCU assembly to correct the failure to retain configuration data.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
U2300:51 Central Configuration:
Not Programmed		 CHECK the service history for recent service actions related to the ABS
module. This DTC sets due to incomplete IVD initialization procedure.
If there have been recent service actions with this module, CARRY OUT
the IVD Initialization procedure, FOLLOW the diagnostic scan tool
instructions.
If there have been no recent service actions, INSTALL a new ABS module
and HCU assembly to correct the failure to retain configuration data.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
U2300:54 Central Configuration:
Missing Calibration		 This DTC sets when the ABS module has not received the vehicle
configuration from the BCM.
If ABS module DTC U0140:00 is also present, DIAGNOSE U0140:00
before diagnosing DTC U2300:54.
If DTC U0140:00 is not present, RETRIEVE and DIAGNOSE all BCM
Diagnostic Trouble Codes (DTCs). If the BCM does not communicate with
the diagnostic scan tool,
REFER to: Communications Network (418-00 Module Communications
Network, Diagnosis and Testing).
If there are no Diagnostic Trouble Codes (DTCs) present in the BCM, then
the BCM or ABS module could not communicate on the network at a point
in time. The fault is not currently present since the ABS module had to
communicate with the diagnostic scan tool to report this DTC. VERIFY the
integrity of the connectors and wiring. Refer to Wiring Diagrams Cell 14 for
schematic and connector information.

 

U2300:55 Central Configuration:
Not Configured		 CHECK the service history for recent service actions related to the ABS
module. This DTC sets due to incomplete IVD initialization procedure.
If there have been recent service actions with this module, CARRY OUT
the IVD inialization procedure, FOLLOW the diagnostic scan tool
instructions.
If there have been no recent service actions, INSTALL a new ABS module
and HCU assembly to correct the failure to retain configuration data.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
U2300:56 Central Configuration:
Invalid / Incompatible
Configuration		 CHECK the service history for recent service actions related to the ABS
module and BCM. This DTC sets due to incomplete IVD initialization
procedure.
If there have been recent service actions with the ABS module or BCM,
REPEAT the IVD initialization procedure as directed by the diagnostic
scan tool.
If there have been no recent service actions, INSTALL a new BCM to
correct the failure to retain software data.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic
Modules, Removal and Installation).
U3000:48 Control Module:
Supervision Software
Failure		 CLEAR the DTC. CYCLE the ignition. CARRY OUT the ABS module selftest.
If the DTC returns, INSTALL a new ABS module and HCU assembly to
correct the failure to retain configuration data.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
If the DTC does not return, the condition to set the DTC is not present at
this time. The cause may be intermittent.
U3000:49 Control Module:
Internal Electronic
Failure		 CLEAR the Diagnostic Trouble Codes (DTCs). CARRY OUT the ABS
module self-test. RETRIEVE and RECORD all Diagnostic Trouble Codes
(DTCs).
If the DTC returns INSTALL a new ABS module and HCU assembly.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System
(ABS) and Stability Control, Removal and Installation).
U3003:08 Battery Voltage: Bus
Signal / Message
Failure		 This DTC sets when the High Speed Controller Area Network (HS-CAN)
network is shorted together, shorted to ground, shorted to voltage or open.
If DTC U3003:16 is also present, DIAGNOSE DTC U3003:16 before
diagnosing DTC U3003:08.
If DTC U3003:16 is not present, DIAGNOSE the communication network.
REFER to: Communications Network (418-00 Module Communications
Network, Diagnosis and Testing).

 

U3003:16 Battery Voltage:
Circuit Voltage Below
Threshold		 GO to Pinpoint Test A
U3003:17 Battery Voltage:
Circuit Voltage Above
Threshold		 GO to Pinpoint Test F
U3003:62 Battery Voltage:
Signal Compare
Failure		 GO to Pinpoint Test Q

DTC Chart: Steering Angle Sensor Module (SASM)

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Steering Angle Sensor Module (SASM) DTC Chart

 

C1B00:49 Steering Angle
Sensor: Internal
Electrical
Failure		 CHECK vehicle service history for recent service actions related to the SASM.
This DTC sets due to incomplete or improper flash programming procedures. If
there have been recent service actions with the SASM, REPEAT the
programming procedure as directed by the diagnostic scan tool.
If there have been no recent service actions, CLEAR the DTC, CYCLE the
ignition, CARRY OUT the SASM self-test. If the DTC returns, INSTALL a new
SASM to correct the failure to retain software data.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint
System, Removal and Installation).
C1B00:61 Steering Angle
Sensor: Signal
Calculation
Failure		 This DTC indicates that part of the SASM has failed internally. CLEAR the
Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column
Switches, Removal and Installation).
C1B00:62 Steering Angle
Sensor: Signal
Compare
Failure		 This DTC indicates that part of the SASM has failed internally. CLEAR the
Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column
Switches, Removal and Installation).
C1B00:64 Steering Angle
Sensor: Signal
Plausibility
Failure		 CLEAR the DTC. TEST DRIVE the vehicle and CARRY OUT at least 1 left turn and 1
right turn. CARRY OUT a SASM self-test. If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches,
Removal and Installation).
C1B00:81 Steering Angle
Sensor: Invalid
Serial Data
Received		 This DTC indicates that part of the SASM has failed internally. CLEAR the
Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column
Switches, Removal and Installation).
C1B00:85 Steering Angle
Sensor: Signal
Above
Allowable
Range		 SET the front wheels to the straight ahead position.
Using a diagnostic scan tool, OBSERVE the SASM steering wheel angle
(SW_ANGLE) Parameter Identification (PID).
If the Parameter Identification (PID) displays 0 degrees, CLEAR the DTC,
REPEAT the SASM self-test. If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column
Switches, Removal and Installation).
If the Parameter Identification (PID) displays more than 360 degrees, SET the
ignition to OFF. REMOVE the SASM,
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column
Switches, Removal and Installation).
Leave the electrical connector connected. SET the ignition to ON (this causes
Diagnostic Trouble Codes (DTCs) to set in multiple modules). Manually
ADJUST the SASM until the SW_ANGLE Parameter Identification (PID)
displays 0 degrees. SET the ignition to OFF. INSTALL the SASM. CLEAR all
Continuous Memory Diagnostic Trouble Codes (CMDTCs) in all modules.
C1B00:87 Steering Angle
Sensor: Missing
Message		 REFER to: Communications Network (418-00 Module Communications Network,
Diagnosis and Testing).
C1B00:92 Steering Angle
Sensor:
Performance or
Incorrect
Operation		 CLEAR the DTC. TEST DRIVE the vehicle and CARRY OUT at least 1 left turn and 1
right turn. CARRY OUT a SASM self-test. If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches,
Removal and Installation).
C1B00:96 Steering Angle
Sensor:
Component
Internal Failure		 This DTC indicates that part of the SASM has failed internally. CLEAR the
Diagnostic Trouble Codes (DTCs). REPEAT the self-test.
If the DTC returns, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column
Switches, Removal and Installation).

 

U0001:88 High Speed
CAN
Communication
Bus: Bus Off		 The module could not communicate on the network at a point in time. The fault
is not currently present since the module had to communicate with the
diagnostic scan tool to report this DTC.
VERIFY the integrity of the connectors and wiring. Refer to Wiring Diagrams
Cell 14 for schematic and connector information.
U0140:00 Lost
Communication
With Body
Control Module:
No Sub Type
Information		 GO to Pinpoint Test D
U0300:00 Internal Control
Module
Software
Incompatibility:
No Sub Type
Information		 GO to Pinpoint Test R
U3003:62 Battery Voltage:
Signal Compare
Failure		 GO to Pinpoint Test L

Symptom Chart(s)

Symptom Chart: Anti-Lock Brake System (ABS) and Stability Control

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Symptom Chart

Condition Possible Sources Actions
A module does not respond to the scan
tool		 Fuse

Wiring,
terminals
or
connectors

ABS
module
concern

SASM
concern

 REFER to: Communications Network (418-00 Module
Communications Network, Diagnosis and Testing).
The brake warning indicator is always or
never on		 Low brake
fluid level
Brake fluid
level
sensor
Parking
brake
applied
Parking
brake
switch
Brake
booster
vacuum
sensor
IPC
concern
ABS
concern		 RETRIEVE and DIAGNOSE all ABS module
Diagnostic Trouble Codes (DTCs). If there are no ABS
module Diagnostic Trouble Codes (DTCs), DIAGNOSE
the brake warning indicator.
REFER to: Instrumentation, Message Center and
Warning Chimes (413-01 Instrumentation, Message
Center and Warning Chimes, Diagnosis and Testing).
The ABS warning indicator is always or
never on		 IPC
concern
ABS
concern
SASM
concern		 RETRIEVE and DIAGNOSE all ABS module and
SASM Diagnostic Trouble Codes (DTCs). If there are
no ABS module or SASM Diagnostic Trouble Codes
(DTCs), DIAGNOSE the ABS warning indicator.
REFER to: Instrumentation, Message Center and
Warning Chimes (413-01 Instrumentation, Message
Center and Warning Chimes, Diagnosis and Testing).
The stability/traction control OFF
indicator (sliding-car OFF icon) is
always on		 IPC
concern
ABS
concern
SASM
concern		 RETRIEVE and DIAGNOSE all ABS module and
SASM Diagnostic Trouble Codes (DTCs). If there are
no ABS module or SASM Diagnostic Trouble Codes
(DTCs), DIAGNOSE the ABS warning indicator.
REFER to: Instrumentation, Message Center and
Warning Chimes (413-01 Instrumentation, Message
Center and Warning Chimes, Diagnosis and Testing).
ABS false activation, ABS too sensitive,
ABS activates on normal stop		 Front or rear
suspension concern		 ELIMINATE the front or rear suspension as the cause
of the problem.
REFER to: Suspension System (204-00 Suspension
System – General Information, Diagnosis and Testing).
RCM mounting CONFIRM the RCM is mounted correctly. REINSTALL
as necessary.
REFER to: Restraints Control Module (RCM) (501-20B
Supplemental Restraint System, Removal and
Installation).
Loose wheel speed
sensor or excessive
air gap		 INSPECT wheel speed sensor for looseness or
excessive air gap. TIGHTEN or INSTALL new as
necessary. For front wheel speed sensors,
REFER to: Front Wheel Speed Sensor (206-09 AntiLock Brake System (ABS) and Stability Control,
Removal and Installation).
For rear wheel speed sensors, REFER to: Rear Wheel
Speed Sensor (206-09 Anti-Lock Brake System (ABS)
and Stability Control, Removal and Installation).
Parking brake shoes
out of adjustment
(dragging)		 CHECK and if necessary, ADJUST the parking brake
shoes. For vehicles equipped with rear drum brakes,
REFER to: Parking Brake Cable Adjustment – Vehicles
With: Rear Drum Brakes (206-05 Parking Brake and
Actuation, General Procedures).
For vehicles equipped with rear disc brakes, REFER
to: Parking Brake Cable Adjustment – Vehicles With:
Rear Disc Brakes (206-05 Parking Brake and
Actuation, General Procedures).
The traction control system cannot be
disabled — vehicles equipped with a
2.0L Gasoline Direct Injection (GDI)
engine		 Refer to the
Diagnostic Routine		 GO to Pinpoint Test E
The traction control system cannot be
disabled — vehicles equipped with a
2.0L Gasoline Turbocharged Direct
Injection (GTDI) engine		 Refer to the
Diagnostic Routine		 GO to Pinpoint Test S

Diagnostic Routines

U3003:16

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

The Anti-Lock Brake System (ABS) module, hydraulic pump and solenoid valves require an operating voltage that is
between 10 and 17 volts. The ABS module receives this voltage from the BJB. The ABS module has a single ground
circuit located in the engine compartment wiring harness. Excessive resistance or an open in one or more of these
circuits, a discharged battery or a inoperative charging system results in the ABS module setting a DTC.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U3003:16 Battery Voltage: Circuit Voltage
Below Threshold		 This DTC sets in continuous memory and on-demand if the voltage
supplied to the ABS module falls below 10 volts.

Possible Causes

  • Fuses
  • Wiring, terminals or connectors
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants.
  • Make sure the vehicle battery terminals are tightened to their correct torque specifications.
  • Make sure BJB fuses 7 (40A), 8 (30A) and 19 (5A) are OK.

PINPOINT TEST A : U3003:16

 

A1 RECHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the ABS module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Using a diagnostic scan tool, carry out the ABS module self-test.

Is DTC U3003:16 still present?

Yes GO to A2

No The system is operating correctly at this time. The DTC may have set due to a previous low battery voltage
condition.

A2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE PCM (POWERTRAIN
CONTROL MODULE)

  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Is DTC B1317, B1318, B1676, U3003:16 or U3003:17 present in one or more modules AND are any charging
system Diagnostic Trouble Codes (DTCs) present in the PCM?

Yes DIAGNOSE the charging system.
REFER to: Charging System – 2.0L Duratec-HE (125kW/170PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
REFER to: Charging System – 2.0L EcoBoost (184kW/250PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).

 

No GO to A3

A3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE

  • Carry out the Battery Condition Test diagnostic routine.
    REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Did the battery pass the condition test?

Yes If the battery passed the condition test but required a recharge, DIAGNOSE the charging system.
REFER to: Charging System – 2.0L Duratec-HE (125kW/170PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
REFER to: Charging System – 2.0L EcoBoost (184kW/250PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
If the battery passed the condition test and did not require a recharge, GO to A4
No INSTALL a new battery.
REFER to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).

 

A4 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE VOLTAGE (VPWR_ABS) PARAMETER
IDENTIFICATION (PID)

  • Ignition ON.
  • Measure and record the voltage at the battery.
  • Using a diagnostic scan tool, monitor the VPWR_ABS Parameter Identification (PID).

Is the Parameter Identification (PID) display within 0.2 volt of the recorded battery voltage?

Yes GO to A7
No GO to A5

A5 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE VOLTAGE SUPPLY

  • Ignition OFF.
  • Disconnect ABS module C135.
  • Ignition ON.
  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-1 Ground
C135-8 Ground
C135-32 Ground

Is each voltage within 0.2 volt of the recorded battery voltage?

Yes GO to A6

No VERIFY BJB fuses 7 (40A), 8 (30A) and 19 (5A) are OK.
If not OK, REFER to the Wiring Diagrams manual to identify the cause of the circuit short. If OK, REPAIR the
affected circuit for high resistance or an open.
  • A6 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE GROUND CIRCUIT FOR AN OPENIgnition OFF.
  • Disconnect the battery negative cable.
  • REFER to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-47 Ground

Is the resistance less than 3 ohms?

Yes GO to A7
No REPAIR the circuit.

  • A7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATIONIgnition OFF.
  • Disconnect and inspect ABS module C135 (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Connect the battery negative cable.
    REFER to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

Wheel Speed Sensor Erratic Signal Diagnostic Trouble Codes (DTCs)

Normal Operation and Fault Conditions

The wheel speed sensor uses the encoder (tone wheel) on the wheel bearing to generate a square wave signal
proportional to wheel speed that is sent to the ABS module. The wheel bearing, encoder and wheel speed sensor must
be undamaged and free from any contamination to produce a clean signal for use by the ABS module. Also, all 4 tires
and wheels must be of the same manufacturer recommended size for the wheel speed sensor to generate an accurate
wheel speed signal.

Diagnostic Trouble Code (DTC) Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0030:07 Left Front
Tone
Wheel:
Mechanical
Failure		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if there is
damage to the wheel speed sensor encoder, damage to the wheel bearing, or contamination or
deformation of the wheel bearing seal.
C0033:07 Right Front
Tone
Wheel:
Mechanical
Failure
C0036:07 Left Rear
Tone
Wheel:
Mechanical
Failure
C0039:07 Right Rear
Tone
Wheel:
Mechanical
Failure
C0031:07 Left Front
Wheel
Speed
Sensor:
Mechanical
Failure		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if the
wheel speed sensor, encoder and/or wheel bearing is damaged, or if the wheel bearing is not
installed correctly. These Diagnostic Trouble Codes (DTCs) also set if an incorrectly sized tire
is installed on the vehicle or if an excessive air gap exists between the wheel speed sensor
and the encoder due to an incorrect component being installed.
C0034:07 Right Front
Wheel
Speed
Sensor:
Mechanical
Failure
C0037:07 Left Rear
Wheel
Speed
Sensor:
Mechanical
Failure
C003A:07 Right Rear
Wheel
Speed
Sensor:
Mechanical
Failure

PINPOINT TEST B : WHEEL SPEED SENSOR ERRATIC SIGNAL DIAGNOSTIC TROUBLE CODES (DTCS)

B1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Is DTC C0031:07, C0034:07, C0037:07 and/or C003A:07 present?

Yes GO to B2

No If DTCC0030:07, C0033:07, C0036:07 or C0039:07 is present, GO to B5
For all other ABS module Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC
Chart.

 

B2 CHECK THE TIRES SIZE AND PRESSURE

  • Ignition OFF.
  • Verify that all the tires and wheels are the same size and the tire size and inflation pressures are correct asindicated on the VC label.

Are the tires and wheels OK?

Yes GO to B3
No INSTALL the correct size tire/wheel or ADJUST tire pressure as necessary.

  • B3 CHECK THE WHEEL SPEED SENSOR FOR DAMAGEWith the vehicle in NEUTRAL, position it on a hoist.
    REFER to: Jacking and Lifting – Overview (100-02 Jacking and Lifting, Description and Operation).
  • Disconnect the suspect wheel speed sensor electrical connector.
  • Inspect the wheel speed sensor and harness for abrasions, broken connector tabs or water intrusion.

Is the wheel speed sensor and harness OK?

Yes GO to B4

No INSTALL a new wheel speed sensor.
For front wheel speed sensors,
REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
For rear wheel speed sensors,
REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

B4 INSPECT THE WHEEL SPEED SENSOR MOUNTING

  • Inspect the wheel speed sensor and fastener for looseness.

Are the wheel speed sensor and fastener tight?

Yes GO to B5
No TIGHTEN the wheel speed sensor fastener to specification.

B5 CHECK WHEEL BEARING AND ENCODER FOR DAMAGE

  • Inspect the wheel bearings for abnormal wear or roughness and for deformation or contamination of the seal
    and encoder.

Are the wheel bearing and encoder OK?

Yes GO to B6

No INSTALL a new wheel bearing as necessary.
For the front wheel bearing,
REFER to: Front Wheel Bearing (204-01 Front Suspension, Removal and Installation).
For the rear wheel bearing,
REFER to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and
Installation).

B6 CHECK FOR RETURNING DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, clear all ABS module Diagnostic Trouble Codes (DTCs).
  • Test drive the vehicle under normal driving conditions above 20 km/h (12 mph).
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Are any Diagnostic Trouble Codes (DTCs) present in the ABS module?

Yes If Diagnostic Trouble Code (DTC) C0031:07, C0034:07, C0037:07 or C003A:07 is present, INSTALL a new
wheel speed sensor.
For front wheel speed sensors,
REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
For rear wheel speed sensors,
REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
If Diagnostic Trouble Code (DTC) C0030:07, C0033:07, C0036:07 or C0039:07 is present, INSTALL a new
wheel bearing as necessary.
For the front wheel bearing,
REFER to: Front Wheel Bearing (204-01 Front Suspension, Removal and Installation).
For the rear wheel bearing,
REFER to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

C0040:64

Refer to Wiring Diagrams Cell 31 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module receives brake pedal switch input from the PCM over the High Speed Controller Area Network (HSCAN). The ABS module compares this information against wheel speed sensor input to determine if the brake pedal input
is valid. As vehicle speed decreases, the ABS module looks for a change in the brake pedal switch input, if vehicle speed
decreases but there is no change in the brake pedal switch, the ABS sets a DTC. An incorrectly installed brake pedal
switch can cause a signal plausibility concern. Also, an implausible signal can been created if a driver is resting one foot
on the brake pedal while using the other foot to press the accelerator.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0040:64 Brake Pedal
Switch “A”:
Signal
Plausibility
Failure		 This DTC sets in continuous memory if brake pedal switch input is continuously active for
more than 6 minutes when driving faster than 20 km/h (12 mph) or after accelerating up to a
speed greater than 40 km/h (25 mph) and decelerating down to a speed less than 3 km/h (2
mph) 4 times with no change in brake pedal switch input.

Possible Causes

  • Brake pedal (stoplamp) switch
  • Communication concern
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the stoplamp switch electrical connector is connected and free of corrosion and other contaminants.
  • Make sure the stoplamp switch is installed correctly.
  • Make sure the stoplamp switch is operating correctly.

PINPOINT TEST C : C0040:64

C1 CHECK THE STOPLAMP SWITCH AND SPEED CONTROL DEACTIVATION SWITCH OPERATION

  • Inspect the stoplamp switch (cruise control deactivation switch is part of the stoplamp switch) and brake pedal
    assembly to verify there is no brake pedal pressure applied due to incorrect switch or pedal assembly
    installation.
  • Confirm that all brake pedal bracket fasteners are tightened to specifications.
  • Set the ignition to RUN.
  • NOTE: Using the diagnostic scan tool recording function makes it easier to observe the brake pressure
    sensor readings.
  • Using a diagnostic scan tool, monitor the Brake Switch Parameters.
  • NOTE: The rate of brake pedal apply must not exceed 35 kPa (5.08 psi) per second as indicated by the
    diagnostic scan tool.
    Slowly apply the brake pedal to generate the pressure graph for the master cylinder pressure (MC_PRESS)
    Parameter Identification (PID).
  • Record the initial value of the MC_PRESS Parameter Identification (PID) when the brake lamp
    (BRAKE_LAMP) and cruise control cancel (CRUISE_CANCL) Parameter Identifications (PIDs) change from
    OFF to ON.

Do the BRAKE_LAMP and CRUISE_CANCL Parameter Identifications (PIDs) transition to ON before the
MC_PRESS Parameter Identification (PID) reaches 304 kPa (44.09 psi)?

Yes GO to C2

No REMOVE and REINSTALL the stoplamp switch.
REFER to: Stoplamp Switch (417-01 Exterior Lighting, Removal and Installation).
CLEAR the ABS module Diagnostic Trouble Codes (DTCs).
VERIFY if the concern is still present using the diagnostic scan tool as instructed previously.
If the concern is still present, INSTALL a new stoplamp switch.
REFER to: Stoplamp Switch (417-01 Exterior Lighting, Removal and Installation).
If the concern is no longer present, the concern was most likely cause by an incorrectly installed stoplamp
switch.

C2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Are any communication (U-code) Diagnostic Trouble Codes (DTCs) present in the ABS module?

Yes DIAGNOSE all ABS module communication Diagnostic Trouble Codes (DTCs) before diagnosing DTC
C0040:64. GO to the ABS Module DTC Chart.

 

No GO to C3

C3 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, carry out the PCM KOEO self-test.
  • Retrieve and record all PCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) present in the PCM?

Yes REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L Duratec-HE (125kW/170PS) –
MI4, Diagnosis and Testing).

No GO to C4

C4 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

  • Ignition OFF.
  • Disconnect and inspect ABS module C135.
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

 

U0140:00

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

With the ignition ON, the BCM sends messages to the ABS module and the SASM over the High Speed Controller Area
Network (HS-CAN). If the ABS module or the SASM do not receive these messages within the specified time frame, the
modules set Diagnostic Trouble Codes (DTCs). This can be due to a BCM failure, a circuit failure on the High Speed
Controller Area Network (HS-CAN) or an excessive load on the network. For information on the messages sent to the
ABS module and the SASM by the BCM,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System Operation and Component Description (206-09
Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).
1/23/2021 Anti-Lock Brake System (ABS) and Stability Control – Diagnosis and Testing • 2012 Ford Focus •

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U0140:00 Lost Communication
With Body Control
Module: No Sub Type
Information		 This DTC sets in continuous memory and on-demand in the ABS
module if any of the following messages is missing from the BCM;
odometer value, parking brake status, vehicle mode or vehicle
configuration information.
This DTC sets in continuous memory and on-demand in the SASM if
the module does not receive the power mode or vehicle configuration
information messages.

Possible Causes

  • Wiring, terminals or connectors
  • Over or undervoltage concerns
  • BCM
  • ABS module
  • SASM

PINPOINT TEST D : U0140:00

D1 CHECK THE COMMUNICATION NETWORK

 

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the Network Test.

Does the BCM pass the Network Test?

Yes GO to D2

No To diagnose the BCM does not communicate with the diagnostic scan tool,
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and
Testing).

 

D2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OR SASM (STEERING ANGLE SENSOR
MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

  • Using a diagnostic scan tool, carry out the ABS module self-test or the SASM self-test.
  • Retrieve and record all ABS module or SASM Diagnostic Trouble Codes (DTCs).
  • Clear the Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Repeat the ABS module or SASM self-test.

Is DTC U0140:00 retrieved again?

Yes GO to D3

No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an
intermittent fault condition.

 

D3 CHECK FOR VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE ABS (ANTI-LOCK BRAKESYSTEM) MODULE OR SASM (STEERING ANGLE SENSOR MODULE) SELF-TEST

  • Review the recorded Diagnostic Trouble Codes (DTCs) from the ABS module or SASM self-test.

Is DTC U3003:16 or U3003:17 present in the ABS module or DTC U3003:62 present in the SASM ?

Yes For ABS module DTC U3003:16, GO to Pinpoint Test A
For ABS module DTC U3003:17, GO to Pinpoint Test F
For SASM DTC U3003:62, GO to Pinpoint Test L

 

No GO to D4

D4 RETRIEVE ALL DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE BCM (BODY CONTROL MODULE)

  • Using a diagnostic scan tool, carry out the BCM self-test.
  • Retrieve and record all Diagnostic Trouble Codes (DTCs) from the BCM self-test.

Is DTC U3003:16 or U3003:17 present in the BCM?

Yes DIAGNOSE the BCM Diagnostic Trouble Codes (DTCs).
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and
Testing).

 

No GO to D5

D5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00 SET IN OTHER MODULES

  • Using the diagnostic scan tool, carry out the self-test for all modules.
  • Retrieve and record the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

Is DTC U0140:00 set in 2 or more modules other than the ABS module or SASM?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions.
If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).

 

The Traction Control System Cannot Be Disabled — Vehicles Equipped With a 2.0L Gasoline Direct Injection
(GDI) Engine

Refer to Wiring Diagrams Cell 60 for schematic and connector information.

Normal Operation and Fault Conditions

When the driver deactivates traction control using the message center, the IPC sends a message to the BCM over the
Medium Speed Controller Area Network (MS-CAN) to disable traction control. The BCM, acting as a gateway, relays this
message to the ABS module over the High Speed Controller Area Network (HS-CAN). The ABS module continues to
monitor for excessive wheel spin, but no longer takes any action when a traction event is detected.

After receiving the message from the BCM, the ABS module sends a message to the BCM over the High Speed
Controller Area Network (HS-CAN) to illuminate the stability/traction control disabled indicator (sliding car OFF icon). The
BCM, acting as a gateway, relays this message to the IPC over the Medium Speed Controller Area Network (MS-CAN).
The IPC responds by illuminating the stability/traction control disabled indicator (sliding car OFF icon). Traction control
remains deactivated until the driver changes the traction control state in the message center or until the ignition is cycled.

If equipped, MyKey® allows users to configure traction control to be either always on or selectable. If a MyKey®
restricted key is in use with the MyKey® traction control feature configured to “always on”, traction control cannot be
disabled. An admin key must be used to enable and disable traction control.

NOTE: For vehicles equipped with Intelligent Access (IA), this test requires the use of at least 2 Intelligent Access (IA)
keys programmed to the vehicle, one admin Intelligent Access (IA) key and one restricted Intelligent Access (IA) key.

NOTE: For vehicles not equipped with Intelligent Access (IA), this test requires the use of at least 2 Integrated Keyhead
Transmitters (IKTs) programmed to the vehicle, one admin Integrated Keyhead Transmitter (IKT) and one restricted
Integrated Keyhead Transmitter (IKT).

Possible Causes

  • A MyKey® restricted key is in use
  • Network communication concern
  • IPC concern
  • Message center concern

PINPOINT TEST E : THE TRACTION CONTROL SYSTEM CANNOT BE DISABLED — VEHICLES EQUIPPED WITH A 2.0L
GASOLINE DIRECT INJECTION (GDI) ENGINE

E1 VERIFY THAT THE KEY IN USE IS NOT RESTRICTED

  • For vehicles equipped with Intelligent Access (IA),
  • place 1 of the Intelligent Access (IA) keys inside the vehicle and all other Intelligent Access (IA) keys
    at least 1 meter (3 feet) away from the vehicle.
  • press the start/stop button without pressing the brake pedal.
  • For vehicles not equipped with Intelligent Access (IA), turn the ignition to the ON position.
  • Monitor the message center.

Does the message center display MYKEY ACTIVE DRIVE SAFELY?

Yes The current Intelligent Access (IA) key or Integrated Keyhead Transmitter (IKT) is a restricted key and is
operating correctly.
REPEAT the test using different Intelligent Access (IA) keys or Integrated Keyhead Transmitters (IKTs) until the
message center does not display MYKEY ACTIVE DRIVE SAFELY. GO to E2
No GO to E2

 

E2 VERIFY THE MYKEY® TRACTION CONTROL SETTING

  • Using the message center, verify the MyKey® traction control setting. Refer to the Owner’s Literature for
    instructions on setting the MyKey® functions.

Is the MyKey® traction control setting configured to “always on”?

Yes GO to E3
No GO to E4

E3 VERIFY TRACTION CONTROL FUNCTION CAN BE DISABLED USING THE ADMIN INTELLIGENT ACCESS
(IA) KEY OR THE ADMIN INTEGRATED KEYHEAD TRANSMITTER (IKT)

  • Using the message center, verify traction control can be enabled and disabled using the admin Intelligent
    Access (IA) key or the admin Integrated Keyhead Transmitter (IKT). Refer to the Owner’s Literature for
    instructions on enabling and disabling traction control.

Can traction control be enabled and disabled using the admin Intelligent Access (IA) key or the admin
Integrated Keyhead Transmitter (IKT)?

Yes The system is operating correctly at this time. The concern may have been caused by the use of a restricted
Intelligent Access (IA) key or restricted Integrated Keyhead Transmitter (IKT).
INFORM the customer that traction control can only be disabled using an admin Intelligent Access (IA) key or an
admin Integrated Keyhead Transmitter (IKT) when the MyKey® traction control setting is configured to “always
on”.

 

No GO to E4

E4 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ABS module self-test.
Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) present in the ABS module?

Yes GO to the ABS Module DTC Chart.
No GO to E5

E5 CHECK FOR IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, carry out the IPC self-test.
  • Retrieve and record all IPC Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) present in the IPC?

Yes REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center
and Warning Chimes, Diagnosis and Testing).

No GO to E6

E6 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, carry out the BCM self-test.
  • Retrieve and record all BCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) present in the BCM?

Yes DIAGNOSE the BCM Diagnostic Trouble Codes (DTCs).
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and
Installation).
No The system is operating correctly at this time. The concern may have been caused due to high network traffic or
an intermittent fault condition.

U3003:17

Normal Operation and Fault Conditions

The ABS module, hydraulic pump and solenoid valves require an operating voltage between 10 and 17 volts. The ABS
module receives this voltage from the BJB. The ABS module has a single ground circuit located in the engine
compartment wiring harness. An overcharging condition in the charging system results in the ABS module setting a DTC.
This DTC may also set in the ABS module due to battery charging or vehicle jump starting events.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U3003:17 Battery Voltage: Circuit Voltage
Above Threshold		 This DTC sets in continuous memory and on-demand if the voltage
supplied to the ABS module is above 17 volts

Possible Causes

  • Charging system concern
  • ABS module

PINPOINT TEST F : U3003:17

F1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES

  • Ignition ON.
  • Using a diagnostic scan tool, retrieve and record all Continuous Memory Diagnostic Trouble Codes
    (CMDTCs).

Is DTC B1317, B1318, B1676, U3003:16 or U3003:17 present in one or more modules AND are any charging
system Diagnostic Trouble Codes (DTCs) present in the PCM?

 

Yes DIAGNOSE the PCM Diagnostic Trouble Codes (DTCs),
REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L Duratec-HE (125kW/170PS) –
MI4, Diagnosis and Testing).

No GO to F2

F2 CHECK THE BATTERY VOLTAGE

  • Turn off all interior lights, exterior lights and accessories.
  • Start and run the engine at approximately 1,500 Revolutions Per Minute (RPM) for 3 minutes while monitoring
    the battery voltage.

Is the battery voltage between 13 and 15.2 volts ?

Yes GO to F3

No DIAGNOSE the overcharging condition.
REFER to: Charging System – 2.0L Duratec-HE (125kW/170PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
REFER to: Charging System – 2.0L EcoBoost (184kW/250PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).

 

F3 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U3003:17

  • Turn the engine off.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Clear the ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Repeat the ABS module self-test.

Is DTC U3003:17 still present?

Yes GO to F4

No The system is operating normally at this time. The DTC may have been set previously during battery charging or
while jump starting the vehicle.

F4 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

 

  • Ignition OFF.
  • Disconnect and inspect ABS module C135 (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

 

Stability Control Sensor Signal Failure DTCs

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

The RCM measures vehicle yaw rate, lateral acceleration and longitudinal acceleration and sends the information to the
ABS module over a private High Speed Controller Area Network (HS-CAN). This private High Speed Controller Area
Network (HS-CAN) is used only for communication between the RCM and the ABS module. The yaw rate sensor, lateral
and longitudinal accelerometers are contained in the RCM. A failure of the private High Speed Controller Area Network
(HS-CAN), RCM or the internal sensors causes the ABS module to set one or more Diagnostic Trouble Codes (DTCs).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0061:28,
C0062:28,
C0063:28		 Lateral Acceleration, Longitudinal
Acceleration, Yaw Rate Sensor:
Signal Bias Level Out of Range/Zero
Adjustment Failure		 These Diagnostic Trouble Codes (DTCs) set in continuous memory
and on-demand if the sensor signal is greater than the programmed
sensor maximum plausible signal.
C0061:2F,
C0063:2F		 Lateral Acceleration, Yaw Rate
Sensor: Signal Erratic		 These Diagnostic Trouble Codes (DTCs) set in continuous memory
and on-demand if the sensor signal is out of range when the vehicle
is standing still.
C0061:64,
C0062:64,
C0063:64		 Lateral Acceleration, Longitudinal
Acceleration, Yaw Rate Sensor:
Signal Plausibility Failure		 These Diagnostic Trouble Codes (DTCs) set in continuous memory
and on-demand if the sensor signal does not match the other stability
sensor signals (steering angle, yaw rate, longitudinal acceleration or
lateral acceleration).
U0028:88 Vehicle Communication Bus “A”:
Bus Off		 This DTC sets in continuous memory and on-demand due to a circuit
failure in the private High Speed Controller Area Network (HS-CAN)
between the ABS module and the RCM.
U0151:00 Lost Communication With Restraints
Control Module: No Sub Type
Information		 This DTC sets in continuous memory and on-demand if the expected
RCM messages such as yaw rate sensor, lateral and longitudinal
accelerometers are missing for more than 5 seconds.
U0452:86 Invalid Data Received from
Restraints Control Module: Signal
Invalid		 This DTC sets in continuous memory and on-demand if one or more
of the stability sensors inside the RCM fails and the sensor signal
provided does not match other stability control sensor input.

Possible Causes

  • Wiring, terminals or connectors
  • RCM
  • ABS module

PINPOINT TEST G : STABILITY CONTROL SENSOR SIGNAL FAILURE DTCS

G1 CHECK THE COMMUNICATION NETWORK

  • Ignition ON.
  • Using the diagnostic scan tool, carry out the Network Test.

Does the RCM pass the Network Test?

Yes GO to G2

No To diagnose the RCM does not communicate with the diagnostic scan tool,
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and
Testing).

G2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE CONTINUOUS MEMORY DIAGNOSTIC
TROUBLE CODES (CMDTCS)

  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).
  • Clear the Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Repeat the ABS module self-test.

Is DTC U0151:00 retrieved again?

Yes GO to G3

No For Diagnostic Trouble Codes (DTCs) C0061:28, 2F, 64; C0062:28, 64; C0063:28, 2F, 64; U0028:88 or
U0452:86, GO to G7
For all other ABS module Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC Chart.
If no Diagnostic Trouble Codes (DTCs) return, the system is operating correctly at this time. The DTC may have
been set due to high network traffic or an intermittent fault condition.

 

G3 REVIEW THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE ABS (ANTI-LOCK BRAKE
SYSTEM) MODULE SELF-TEST

  • Review the recorded Diagnostic Trouble Codes (DTCs) from the ABS module self-test.

Is DTC U3003:16 or U3003:17 present in the ABS module?

Yes For DTC U3003:16, GO to Pinpoint Test A
For DTC U3003:17, GO to Pinpoint Test F
No GO to G4

G4 RETRIEVE ANY DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RCM (RESTRAINTS CONTROL
MODULE)

  • Using a diagnostic scan tool, carry out the RCM self-test.

Is DTC U3003:16 or U3003:17 present in the RCM?

Yes DIAGNOSE the RCM Diagnostic Trouble Codes (DTCs),
REFER to: Airbag Supplemental Restraint System (SRS) – Vehicles With: First and Second Row Supplemental
Restraint System (SRS) With Driver Knee Airbag (501-20B Supplemental Restraint System, Diagnosis and
Testing).

 

No GO to G5

G5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0151:00 SET IN OTHER MODULES

  • Using the diagnostic scan tool, carry out the self-test for all modules.
  • Retrieve and record the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

Is DTC U0151:00 recorded in any other module?

Yes GO to G13
No GO to G6

G6 VERIFY THE RCM (RESTRAINTS CONTROL MODULE) PART NUMBER

  • Using a diagnostic scan tool, retrieve and record the RCM part number from the log viewer.
  • Check the part number recorded against the number listed in the parts catalog or equivalent.

Does the part number on the RCM match the part number listed in the parts catalog or equivalent?

Yes GO to G7

No INSTALL the correct RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and
Installation).

 

G7 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE IVD INITIALIZATION

  • Using a diagnostic scan tool, carry out the ABS module IVD Initialization.

Does the ABS module IVD Initialization complete successfully?

Yes GO to G8
No GO to G9

G8 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Are any stability control sensor Diagnostic Trouble Codes (DTCs), including no communication, invalid data
and bus off Diagnostic Trouble Codes (DTCs) present in the ABS module?

Yes GO to G9

No The condition that set the DTC is not present at this time. The concern may have been caused due to a failed or
an incomplete initialization.

G9 CHECK THE PRIVATE HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) CIRCUITS FOR A SHORT
TO VOLTAGE

  • Depower the SRS.
    REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental
  • Restraint System, General Procedures).
  • Disconnect both RCM electrical connectors.
  • Disconnect ABS module C135.
  • Ignition ON.
  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-18 Ground
C135-19 Ground

Is any voltage present?

Yes REPAIR the affected circuit(s).
No GO to G10

G10 CHECK THE PRIVATE HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) CIRCUITS FOR A SHORT
TO GROUND

  • Ignition OFF.
  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-18 Ground
C135-19 Ground

Are the resistances greater than 10,000 ohms?

Yes GO to G11
No REPAIR the affected circuit(s).

G11 CHECK THE PRIVATE HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) CIRCUITS FOR A SHORT
TOGETHER

  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-18 C135-19

Is the resistance greater than 10,000 ohms?

Yes GO to G12
No REPAIR the affected circuit(s).

G12 CHECK THE PRIVATE HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) CIRCUITS FOR AN OPEN

  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-18 C310B-32
C135-19 C310B-31

Are the resistances less than 3 ohms?

Yes GO to G13
No REPAIR the affected circuit(s).

G13 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

  • Ignition OFF.
  • Disconnect and inspect the RCM electrical connectors (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect the RCM electrical connectors. Make sure they seat and latch correctly.
  • Repower the SRS.
  • REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental
  • Restraint System, General Procedures).
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and
Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

C0020:01, C0020:1C, C0020:71

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module uses an internal solid state switch to operate the hydraulic pump motor. The ABS module tests the
hydraulic pump motor by activating it for 30 milliseconds. While the pump motor is activated, the ABS module monitors
the voltage drop across the hydraulic pump motor. After 30 milliseconds have passed, the ABS module stops applying
voltage to the pump motor and monitors the voltage that the spinning hydraulic pump motor is generating and the voltage
drop across the hydraulic pump motor solid state switch. If the monitored voltages are not within the specifications, the
ABS module sets one or more Diagnostic Trouble Codes (DTCs).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0020:01 ABS
Pump
Motor
Control:
General
Electrical
Failure		 This DTC sets in continuous memory and on-demand if there is an ABS module voltage supply
concern, a module ground concern, a shorted hydraulic pump motor or an internal failure of the
ABS module.
C0020:1C ABS
Pump
Motor
Control:
Circuit
Voltage
Out of
Range		 This DTC sets in continuous memory and on-demand if of the following conditions exist: the
voltage supplied to the ABS module is less than 11 volts, there is an open or high resistance in
the module voltage supply circuit or the module ground circuit, the voltage drop across the
activated pump motor is greater than 7.3 volts, the voltage output of the deactivated pump
motor is less than 6 volts, the voltage drop across the solid state switch is greater than 0.93 volt
or there is an open or high resistance on the hydraulic pump motor circuit between the ABS
module and the HCU.
C0020:71 ABS
Pump
Motor
Control:
Actuator
Stuck		 This DTC sets in continuous memory and on-demand if the ABS module detects the hydraulic
pump motor is not rotating when it is commanded to run.

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • HCU
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants.
  • Make sure the vehicle battery terminals are tightened to their correct torque specifications.
  • Make sure BJB fuse 7 (40A) and the fuse socket are OK.

PINPOINT TEST H : C0020:01, C0020:1C, C0020:71

H1 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

 

  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Is Diagnostic Trouble Code (DTC) C0020:71 present in the ABS module?

Yes GO to H2

No If only DTC C0020:1C is present, GO to H3
If both Diagnostic Trouble Codes (DTCs) C0020:1C and C0020:01 are present, GO to H3
If only DTC C0020:01 is present, GO to H6
For all other ABSmodule Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC
Chart.

 

H2 CHECK PUMP MOTOR OPERATION

  • Using a diagnostic scan tool, activate the ABS pump motor (PMP_MTR) active command.
  • Listen for the ABS pump motor noise.

Does the ABS pump motor run for approximately 2 seconds?

Yes GO to H3
No GO to H6

H3 CHECK FOR FAULT REPEATABILITY

 

  • Using a diagnostic scan tool, clear the ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Test drive the vehicle at speeds greater than 20 km/h (12 mph).
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Are any ABS module Diagnostic Trouble Codes (DTCs) retrieved?

Yes For Diagnostic Trouble Code (DTC) C0020:71, GO to H6
For Diagnostic Trouble Code (DTC) C0020:1C, GO to H4
For all other ABS module Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC Chart.
No The concern that caused the DTC is not present at this time.
DISCONNECT and INSPECT the ABS module electrical connector. CLEAN or REPAIR the connector as
necessary. ADDRESS the root cause of any connector or pin issues.

 

H4 CHECK THE PUMP MOTOR VOLTAGE SUPPLY TO THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE

  • Ignition OFF.
  • Disconnect ABS module C135.
  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-1 Ground

 

Is the voltage greater than 11 volts?

Yes GO to H5

No VERIFY that BJB fuse 7 (40A) is OK. If OK, REPAIR the circuit.
If not OK, REFER to the Wiring Diagrams manual to identify the cause of the circuit short.

 

H5 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE GROUND CIRCUIT FOR AN OPEN

  • Ignition OFF.
  • Disconnect the battery negative cable.
  • REFER to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
  • Measure:
Positive Lead Measurement / Action Negative Lead
C135-47 Ground

Is the resistance less than 3 ohms?

Yes GO to H6
No REPAIR the circuit.

H6 CHECK FOR CORRECT ANTI-LOCK BRAKE SYSTEM (ABS) MODULE OPERATION

  • Ignition OFF.
  • Disconnect and inspect ABS module C135 (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Connect the battery negative cable.REFER to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

 

C0040:87 or U0100:00

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

With the ignition ON, the PCM sends messages to the ABS module over the High Speed Controller Area Network (HSCAN). If the ABS module does not receive these messages within the specified time frame, the ABS module sets
Diagnostic Trouble Codes (DTCs). This can be due to a PCM failure, a circuit failure on the High Speed Controller Area
Network (HS-CAN) or an excessive load on the network. For information on the messages sent to the ABS module by the
PCM,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System Operation and Component Description (206-09
Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

 

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0040:87 Brake Pedal
Switch “A”:
Missing
Message		 This DTC sets in continuous memory and on-demand if the brake pedal position
message is missing for more than 500 ms. This can be due to a PCM failure, a stoplamp
switch failure, a circuit failure on the High Speed Controller Area Network (HS-CAN) or
an excessive load on the network.
U0100:00 Lost
Communication
With ECM/PCM
“A”: No Sub
Type Information		 This DTC sets in continuous memory and on-demand if any one of the following
messages is missing; accelerator pedal position, cruise control status, power pack status
or reverse gear. This can be due to a PCM failure, a circuit failure on the High Speed
Controller Area Network (HS-CAN) or an excessive load on the network.

Possible Causes

  • Wiring, terminals or connectors
  • PCM
  • ABS module

PINPOINT TEST I : C0040:87 OR U0100:00

I1 CHECK THE COMMUNICATION NETWORK

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the Network Test.

Does the PCM pass the Network Test?

Yes GO to I2

No To diagnose the PCM does not communicate with the diagnostic scan tool,
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and
Testing).

I2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES
(CMDTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Clear the ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record the ABS module Diagnostic Trouble Codes (DTCs).

Is DTC C0040:87 or U0100:00 retrieved again?

Yes GO to I3

No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an
intermittent fault condition.

I3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE ABS (ANTI-LOCK BRAKE
SYSTEM) SELF-TEST

  • Check the recorded Diagnostic Trouble Codes (DTCs) from the ABS self-test.

Is Diagnostic Trouble Code (DTC) U3003:16 or U3003:17 recorded?

Yes For DTC U3003:16, GO to Pinpoint Test A
For DTC U3003:17, GO to Pinpoint Test F
No GO to I4

I4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PCM (POWERTRAIN
CONTROL MODULE) SELF-TEST

  • Using a diagnostic scan tool, carry out the PCM KOEO self-test.

Is DTC P0562 or P0563 present?

Yes DIAGNOSE the PCM Diagnostic Trouble Codes (DTCs),
REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L Duratec-HE (125kW/170PS) –
MI4, Diagnosis and Testing).

No GO to I5

I5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00 SET IN OTHER MODULES

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the self-test for all modules.
  • Retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

Is DTC U0100:00 set in 1 or more modules in addition to the ABS module?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new PCM.
REFER to: Powertrain Control Module (PCM) (303-14A Electronic Engine Controls – 2.0L Duratec-HE
(125kW/170PS) – MI4, Removal and Installation).
No CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

U0101:00

Normal Operation and Fault Conditions

With the ignition ON, the TCM sends messages to the ABS module over the High Speed Controller Area Network (HSCAN). If the ABS module does not receive these messages within the specified time frame, the ABS module sets
Diagnostic Trouble Codes (DTCs). This can be due to a TCM failure, a circuit failure on the High Speed Controller Area

Network (HS-CAN) or an excessive load on the network. For information on the messages sent to the ABS module by the
TCM,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System Operation and Component Description (206-09
Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U0101:00 Lost Communication With TCM: No
Sub Type Information		 This DTC sets in continuous memory and on-demand if the selector
lever (PRNDL) status message is missing.

Possible Causes

  • Wiring, terminals or connectors
  • TCM
  • ABS module

PINPOINT TEST J : U0101:00

J1 CHECK THE COMMUNICATION NETWORK

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the Network Test.

Does the TCM pass the Network Test?

Yes GO to J2

No To DIAGNOSE the TCM does not communicate with the diagnostic scan tool,
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and
Testing).

J2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES
(CMDTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Clear the ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record the ABS module Diagnostic Trouble Codes (DTCs).

Is DTC U0101:00 retrieved again?

Yes GO to J3

No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an
intermittent fault condition

J3 REVIEW THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE ABS (ANTI-LOCK BRAKE
SYSTEM) MODULE SELF-TEST

  • Review the recorded Diagnostic Trouble Codes (DTCs) from the ABS module self-test.

Is DTC U3003:16 or U3003:17 present in the ABS module?

Yes For DTC U3003:16, GO to Pinpoint Test A
For DTC U3003:17, GO to Pinpoint Test F
No GO to J4

J4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE TCM (TRANSMISSION
CONTROL MODULE) SELF-TEST

  • Using a diagnostic scan tool, carry out the TCM self-test.

Is DTC P0702, P0882, P0883 or P1397 present?

Yes DIAGNOSE the TCM Diagnostic Trouble Codes (DTCs),
REFER to: Automatic Transmission (307-01 Automatic Transmission – Vehicles With: 6-Speed PowerShift
Transmission – DPS6/6DCT250)

No GO to J5

J5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0101:00 SET IN OTHER MODULES

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the self-test for all modules.
  • Retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

Is DTC U0101:00 present in 1 or more modules in addition to the ABS module?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new PCM, the TCM is part of the PCM.
REFER to: Powertrain Control Module (PCM) (303-14A Electronic Engine Controls – 2.0L Duratec-HE
(125kW/170PS) – MI4, Removal and Installation).
No CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

U0126:00

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

With the ignition ON, the SASM sends messages to the ABS module over the High Speed Controller Area Network (HSCAN). If the ABS module does not receive these messages within the specified time frame, the ABS module sets
Diagnostic Trouble Codes (DTCs). This can be due to a steering angle sensor failure, a circuit failure on the High Speed
Controller Area Network (HS-CAN) or an excessive load on the network. For information on the messages sent to the
ABS module by the SASM,
REFER to: Anti-Lock Brake System (ABS) and Stability Control – System Operation and Component Description (206-09
Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U0126:00 Lost Communication With Steering
Angle Sensor Module: No Sub Type
Information		 This DTC sets in continuous memory and on-demand if either the
steering angle count or the steering angle status messages is
missing.

Possible Causes

  • Wiring, terminals or connectors
  • SASM
  • ABS module

PINPOINT TEST K : U0126:00

K1 CHECK THE COMMUNICATION NETWORK
I

  • ignition ON.
  • Using a diagnostic scan tool, carry out the Network Test.

Does the SASM pass the Network Test?

Yes GO to K2

No To DIAGNOSE the SASM does not communicate with the diagnostic scan tool,
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and
Testing).

 

K2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES
(CMDTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Clear the ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record the ABS module Diagnostic Trouble Codes (DTCs).

Is DTC U0126:00 retrieved again?

Yes GO to K3

No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an
intermittent fault condition.

K3 REVIEW THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE ABS (ANTI-LOCK BRAKE
SYSTEM) MODULE SELF-TEST

Review the recorded Diagnostic Trouble Codes (DTCs) from the ABS module self-test.

Is DTC U3003:16 or U3003:17 present in the ABS module?

Yes For DTC U3003:16, GO to Pinpoint Test A
For DTC U3003:17, GO to Pinpoint Test F
No GO to K4

K4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SASM (STEERING ANGLE
SENSOR MODULE) SELF-TEST

  • Using a diagnostic scan tool, carry out the SASM self-test.

Is DTC U3003:62 present in the SASM?

Yes GO to Pinpoint Test L
No GO to K5

K5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0126:00 SET IN OTHER MODULES

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the self-test for all modules.
  • Retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

Is DTC U0126:00 set in 1 or more modules in addition to the ABS module?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).
No CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

U3003:62 – SASM

Refer to Wiring Diagrams Cell 31 for schematic and connector information.
Normal Operation and Fault Conditions

The SASM receives battery voltage from the BCM and has a single ground circuit located in the instrument panel wiring
harness. Excessive resistance or an open in one or both of these circuits, a discharged battery, an inoperative charging
system or an overcharging condition in the charging system results in the SASM setting a DTC.

This DTC may also set in the SASM due to battery charging or vehicle jump starting events.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U3003:62 Battery Voltage: Signal
Compare Failure		 This DTC sets when the voltage received by the SASM falls below 6 volts or
raises above 21 volts.

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • Charging system concern
  • SASM
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants.
  • Make sure the vehicle battery terminals are tightened to their correct torque specifications.
  • Make sure BCM fuse 72 (7.5A) is OK.

PINPOINT TEST L : U3003:62 – SASM (STEERING ANGLE SENSOR MODULE)

L1 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE PCM (POWERTRAIN
CONTROL MODULE)

  • Ignition ON.
  • Using a diagnostic scan tool, retrieve ALL Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Is DTC B1317, B1318, B1676, U3003:16 or U3003:17 present in one or more modules AND are any charging
system Diagnostic Trouble Codes (DTCs) present in the PCM?

Yes DIAGNOSE the charging system.
REFER to: Charging System – 2.0L Duratec-HE (125kW/170PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
REFER to: Charging System – 2.0L EcoBoost (184kW/250PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).

No GO to L2

L2 CHECK THE BATTERY CONDITION AND STATE OF CHARGE

  • Ignition OFF.
  • Carry out the Battery Condition Test diagnostic routine.
  • REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Did the battery pass the condition test?

Yes If the battery passed the condition test but required a recharge, DIAGNOSE the charging system.
REFER to: Charging System – 2.0L Duratec-HE (125kW/170PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
REFER to: Charging System – 2.0L EcoBoost (184kW/250PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
If the battery passed the condition test and did not require a recharge, GO to L3
No INSTALL a new battery.
REFER to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).

L3 CHECK THE CHARGING SYSTEM VOLTAGE

NOTE: Do not allow the engine speed to increase above 2,000 Revolutions Per Minute (RPM) while performing this
step or the generator may self-excite and result in default charging system output voltage. If engine speed goes above
2,000 Revolutions Per Minute (RPM), turn the vehicle off and restart the engine before performing this step.

  • Start the engine.
  • Measure the voltage of the battery with and without a load on the charging system as follows:
  • Turn off all accessories and run the engine at 1,500 Revolutions Per Minute (RPM) for a minimum of
    2 minutes while measuring the battery voltage.
  • Turn on the headlights and the HVAC fan on high and run the engine at 1,500 Revolutions Per
    Minute (RPM) for a minimum of 2 minutes while measuring the battery voltage.

Is the battery voltage between 13 and 15.2 volts?

Yes GO to L4

No DIAGNOSE the charging system.
REFER to: Charging System – 2.0L Duratec-HE (125kW/170PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).
REFER to: Charging System – 2.0L EcoBoost (184kW/250PS) – MI4 (414-00 Charging System – General
Information, Diagnosis and Testing).

L4 CHECK THE SASM (STEERING ANGLE SENSOR MODULE) BATTERY VOLTAGE STATUS (VBATT_STATUS)
PARAMETER IDENTIFICATION (PID)

  • Ignition OFF.
  • Ignition ON.
  • Measure and record the voltage at the battery.
  • Using a diagnostic scan tool, monitor the SASM VBATT_Status Parameter Identification (PID).

Is the Parameter Identification (PID) display within 0.2 volt of the recorded battery voltage?

Yes GO to L7
No GO to L5

L5 CHECK THE VOLTAGE SUPPLY TO THE SASM (STEERING ANGLE SENSOR MODULE)

 

  • Ignition OFF.
  • Disconnect SASM C226A.
  • Measure:
Positive Lead Measurement / Action Negative Lead
C226A-1 Ground

Is the voltage within 0.2 volt of the recorded battery voltage?

Yes GO to L6

No VERIFY BCM fuse 72 (7.2A) is OK. If OK, REPAIR the circuit.
If not OK, REFER to the Wiring Diagrams manual to identify the cause of the circuit short.

L6 CHECK THE SASM (STEERING ANGLE SENSOR MODULE) GROUND CIRCUIT FOR AN OPEN

  • Measure:
Positive Lead Measurement / Action Negative Lead
C226A-14 Ground

 

Is the resistance less than 3 ohms?

Yes GO to L7
No REPAIR the circuit.

L7 CHECK FOR CORRECT SASM (STEERING ANGLE SENSOR MODULE) OPERATION

  • Ignition OFF.
  • Disconnect and inspect all SASM electrical connectors.
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect the SASM electrical connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

Steering Angle Sensor Module (SASM) Signal Failure DTCs

The SASM monitors steering wheel rotation speed, angle and direction of rotation and sends the information to the ABS
module over the High Speed Controller Area Network (HS-CAN). A failure of the High Speed Controller Area Network
(HS-CAN), SASM or the internal sensors causes the ABS module to set one or more Diagnostic Trouble Codes (DTCs).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0051:28 Steering Wheel
Position Sensor:
Signal Bias
Level Out of
Range/Zero
Adjustment
Failure		 This DTC sets in continuous memory and on-demand if the absolute value of the
measured steering wheel angle sensor is greater than 720 degrees or if the calculated
steering angle offset is greater than 15 degrees. This is most likely caused by loose or
worn steering or suspension components that result in a vehicle tracking or pull/drift
issue. Also, an incorrectly installed SASM or clockspring may cause the steering angle to
be offset.
C0051:54 Steering Wheel
Position Sensor:
Missing
Calibration		 This DTC sets in continuous memory and on-demand if the steering angle status
message “Not Initialized” is received by the ABS module for longer than 800 ms with
vehicle speed above 15 km/h (9 mph). This is most likely caused by a new SASM that
has not been calibrated, an undervoltage at the module or an internal failure of the
module.
U0428:00 Invalid Data
Received from
Steering Angle
Sensor Module:
No Sub Type
Information		 This DTC sets in continuous memory and on-demand if the steering angle status
message sent by the SASM is “defective”.
U0428:2F Invalid Data
Received from
Steering Angle
Sensor Module:
Signal Erratic		 The steering angle is measured in increments of 1 degree. This DTC sets in continuous
memory and on-demand if the steering angle sensor signal increases or decreases when
it should remain stable.
U0428:61 Invalid Data
Received from
Steering Angle
Sensor Module:
Signal
Calculation
Failure		 This DTC sets in continuous memory and on-demand if the calculated steering angle and
the actual steering angle differ by more than 15 degrees. This is most likely caused by an
incorrectly installed or damaged SASM but can also be caused by loose or worn steering
or suspension components that result in excessive play in the steering system.
U0428:62 Invalid Data
Received from
Steering Angle
Sensor Module:
Signal Compare
Failure		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if the
steering angle sensor signal does not match other stability sensor signals (yaw rate,
longitudinal acceleration, lateral acceleration, etc.).
U0428:64 Invalid Data
Received from
Steering Angle
Sensor Module:
Signal
Plausibility
Failure
U0428:68 Invalid Data
Received from
Steering Angle
Sensor Module:
Event
Information

PINPOINT TEST M : STEERING ANGLE SENSOR MODULE (SASM) SIGNAL FAILURE DTCS

M1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Is DTC C0051:28 or C0051:54 present in the ABS module?

Yes GO to M2

No If Diagnostic Trouble Codes (DTCs) U0428:00, 61, 68 or 2F are present, GO to M4
If Diagnostic Trouble Codes (DTCs) U0428:62 or 64 are present, GO to M3
For all other ABS module Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC
Chart.

M2 VERIFY SASM (STEERING ANGLE SENSOR MODULE) CALIBRATION

  • Using a diagnostic scan tool, carry out the IVD Initialization procedure. Follow the diagnostic scan tool
    directions.
  • Ignition OFF.
  • Ignition ON.
  • Test drive the vehicle above 20 km/h (12 mph) and make at least 1 left turn and 1 right turn.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Is DTC C0051:28 or C0051:54 present in the ABS module?

Yes INSPECT the front suspension, rear suspension, wheels and tires for a pulling condition. REPAIR as necessary.
REFER to: Suspension System (204-00 Suspension System – General Information, Diagnosis and Testing).
INSPECT the front suspension and the steering system for loose or worn components. REPAIR as necessary.
For the front suspension,
REFER to: Front Suspension – Overview (204-01 Front Suspension, Description and Operation).
For the rear suspension,
REFER to: Rear Suspension – Overview (204-02 Rear Suspension, Description and Operation).
For the steering system,
REFER to: Power Steering – System Operation and Component Description (211-02 Power Steering,
Description and Operation).
No The condition that caused the concern is no longer present. The concern was most likely due to an incomplete
calibration or a failed calibration of the SASM. RETURN the vehicle to the customer.

 

M3 CHECK THE SASM (STEERING ANGLE SENSOR MODULE) PARAMETER IDENTIFICATIONS (PIDS)

  • Park the vehicle with the wheels in the straight ahead position.
  • Using a diagnostic scan tool, monitor the SASM steering wheel angle (SW_ANGLE) Parameter Identification
    (PID).
  • Starting from the center (straight ahead) position, turn the steering wheel to the right until it stops. Record the
    SW_ANGLE Parameter Identification (PID) display.
  • Starting from the center (straight ahead) position, turn the steering wheel to the left until it stops. Record the
    SW_ANGLE Parameter Identification (PID) display.

Does the Parameter Identification (PID) display at least 380 degrees after reaching each end of travel point?

Yes GO to M6

No CHECK the vehicle history and VERIFY if a new clockspring or SASM has been installed.
If a new clockspring has been installed, VERIFY correct clockspring installation.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).
If a new SASM has been installed, GO to M4
If a new clockspring or SASM have not been installed, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).

M4 INSPECT THE SASM (STEERING ANGLE SENSOR MODULE) INSTALLATION

  • Ignition OFF.
  • Remove the clockspring.REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).
  • Inspect the SASM and the SASM electrical connector for any obvious signs of damage, corrosion, foreign
    material or looseness.

Are the SASM and electrical connector OK?

Yes GO to M5

No REPAIR or INSTALL new as necessary.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).

M5 VERIFY THE SASM (STEERING ANGLE SENSOR MODULE) ZERO POSITION

  • Ignition ON.
  • Using a diagnostic scan tool, monitor the SASM steering wheel angle (SW_ANGLE) Parameter Identification
    (PID).
  • Turn the SASM rotor by hand until the SW_ANGLE displays 0 degrees.
  • Ignition OFF.
  • Install the clockspring.
    REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Are Diagnostic Trouble Codes (DTCs) U0428:00, 61, 68, 2F; U0428:62 or 64 present in the ABS module?

Yes INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).
No The condition that caused the concern is no longer present. The concern was most likely due to an incorrectly
installed SASM. RETURN the vehicle to the customer.
For all other ABS module Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC Chart.

M6 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE YAW RATE VALUE (YAW_RATE) PARAMETER
IDENTIFICATION (PID)

  • Monitor the YAW_RATE Parameter Identification (PID).

Is the YAW_RATE Parameter Identification (PID) value between -0.05 and 0.05?

Yes GO to M7
No GO to M9

M7 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE LATERAL ACCELERATION (LAT_ACCL)
PARAMETER IDENTIFICATION (PID)

  • Monitor the LAT_ACCL Parameter Identification (PID).

Is the LAT_ACCL Parameter Identification (PID) value between -0.4 and 0.4?

Yes GO to M8
No GO to M9

M8 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE LONGITUDINAL ACCELERATION (LNGACC)
PARAMETER IDENTIFICATION (PID)

  • NOTE: The vehicle must be on level ground and at a complete standstill. Any vehicle movement results in
    false values for this test.
  • Monitor the LNGACC Parameter Identification (PID).

Is the LNGACC Parameter Identification (PID) value between -0.4 and 0.4?

Yes GO to M10
No GO to M9

M9 CHECK THE RCM (RESTRAINTS CONTROL MODULE) INSTALLATION AND MOUNTING SURFACE

  • Ignition OFF.
  • Depower the SRS.REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental
    Restraint System, General Procedures).
  • Inspect the RCM installation and make sure the fasteners are fully seated and tightened correctly.
    REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and
    Installation).
  • Inspect the RCM mounting surface for damage, corrosion or dirt.

Is the RCM installed correctly and is the mounting surface clean and free from damage?

Yes GO to M10

No REPAIR or INSTALL new as necessary.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and
Installation).

M10 CHECK FOR CORRECT SASM (STEERING ANGLE SENSOR MODULE) OPERATION

  • Ignition OFF.
  • Disconnect and inspect all SASM electrical connectors (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect the SASM electrical connectors. Make sure it seats and latches correctly.
  • Connect all RCM electrical connectors. Make sure they seat and latch correctly.
  • Repower the Supplemental Restraint System (SRS).
    REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental
    Restraint System, General Procedures).
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

C1A41:64

Refer to Wiring Diagrams Cell 31 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module receives CPP switch input from the PCM over the High Speed Controller Area Network (HS-CAN). The
ABS module compares this information against brake pedal switch and sensor input to determine if the clutch pedal input
is valid. An incorrectly installed CPP switch can cause a signal plausibility concern. Also, an implausible signal can be
created if a driver is resting one foot on the clutch pedal while using the other foot to press the accelerator.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C1A41:64 Clutch Pedal Switch “A”:
Signal Plausibility Failure		 This DTC sets in continuous memory if the ABS module receives the brake
pedal switch message but does not receive the clutch pedal switch message.

Possible Causes

  • CPP switch
  • Communication concern
  • PCM
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the CPP switch electrical connector is connected and free of corrosion and other contaminants.
  • Make sure the CPP switch is installed correctly.
  • Make sure the CPP switch is operating correctly.

PINPOINT TEST N : C1A41:64

N1 CHECK THE PCM (POWERTRAIN CONTROL MODULE) CLUTCH PEDAL BEYOND TOP OF TRAVEL
SWITCH POINT (CPP_TOP) PARAMETER IDENTIFICATION (PID)

  • Ignition ON.
  • Using a diagnostic scan tool, monitor the PCM CPP_TOP Parameter Identification (PID) while pressing and
    releasing the clutch pedal.

Does the Parameter Identification (PID) display YES with the pedal pressed and NO with the pedal released?

Yes GO to N2

No DIAGNOSE the CPP switch.
REFER to: Cruise Control (419-03 Cruise Control, Diagnosis and Testing).

N2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, carry out the ABS module self-test.
  • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

Are any communication (U-code) Diagnostic Trouble Codes (DTCs) present in the ABS module?

Yes DIAGNOSE all ABS module communication Diagnostic Trouble Codes (DTCs) before diagnosing DTC
C1A41:64. GO to the ABS Module DTC Chart.

No GO to N3

N3 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)

  • Using a diagnostic scan tool, carry out the PCM KOEO self-test.
  • Retrieve and record all PCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) present in the PCM?

Yes DIAGNOSE the PCM Diagnostic Trouble Codes (DTCs).
REFER to: Electronic Engine Controls (303-14A Electronic Engine Controls – 2.0L Duratec-HE (125kW/170PS) –
MI4, Diagnosis and Testing).

No GO to N4

N4 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

  • Ignition OFF.
  • Disconnect and inspect ABS module C135.
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

Wheel Speed Sensor Electrical Fault DTCs – Front

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

Active wheel speed sensors generate a square wave signal proportional to wheel speed which is sent to the ABS
module. Each wheel speed sensor is connected to the ABS module through 2 wires and a connector at each wheel
speed sensor. One wire is for sensor voltage supply from the ABS module and the other wire is for the signal return to the
ABS module. When the ignition is set to RUN, the ABS module carries out a self-test by sending a reference voltage
through the wheel speed sensors and their circuitry.

Diagnostic Trouble Code (DTC) Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0031:11 Left Front
Wheel Speed
Sensor:
Circuit Short
to Ground		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if there
is a short to ground in the sensor signal return circuit or if the sensor has an internal short to
ground.
C0034:11 Right Front
Wheel Speed
Sensor:
Circuit Short
to Ground
C0031:15 Left Front
Wheel Speed
Sensor:
Circuit Short
to Battery or
Open		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if there
is a short to battery voltage or an open in the sensor signal return circuit. A short to battery
voltage may be due to the sensor signal return circuit and the sensor voltage supply circuit
shorted together. These Diagnostic Trouble Codes (DTCs) also set if the sensor has an
internal short to battery voltage or an open circuit.
C0034:15 Right Front
Wheel Speed
Sensor:
Circuit Short
to Battery or
Open

Possible Causes

  • Wiring, terminals or connectors
  • Wheel speed sensor
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the wheel speed sensor harness is routed correctly and is undamaged.
  • Make sure the wheel speed sensor electrical connector is free from any corrosion or other contaminants.

PINPOINT TEST O : WHEEL SPEED SENSOR ELECTRICAL FAULT DTCS – FRONT

O1 CHECK FOR FAULT REPEATABILITY

  • Ignition ON.
  • Using a diagnostic scan tool, clear all ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Test drive the vehicle above 20 km/h (12 mph).
  • Bring the vehicle to a safe stop.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Is Diagnostic Trouble Code (DTC) C0031:11, C0031:15, C0034:11 and/or C0034:15 present?

Yes If the Rotunda Active Wheel Speed Sensor Tester is available, GO to O2
If the Rotunda Active Wheel Speed Sensor Tester is not available and DTC C0031:15 or C0034:15 is present,
GO to O5
If the Rotunda Active Wheel Speed Sensor Tester is not available and DTC C0031:11 or C0034:11 is present,
GO to O7
No The system is operating correctly at this time. INSPECT both front wheel speed sensor electrical connectors
and the ABS module electrical connector. REPAIR or CLEAN the connector as necessary. ADDRESS the root
cause of any connector or pin issues.

O2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OUTPUT USING THE ROTUNDA ACTIVE WHEEL
SPEED SENSOR TESTER

  • Ignition OFF.
  • Disconnect the suspect wheel speed sensor electrical connector.
  • Connect the Rotunda Active Wheel Speed Sensor Tester to the wheel speed sensor connectors.
  • Ignition ON.
  • Select the correct system polarity on the Rotunda Active Wheel Speed Sensor Tester and turn the powerswitch to the ON position.

Is the tester output LED illuminated?

Yes GO to O3
No GO to O5

O3 CHECK THE WHEEL SPEED SENSOR FOR A SHORT TO VOLTAGE WITH THE ROTUNDA ACTIVE WHEEL
SPEED SENSOR TESTER

  • Observe the current overload LED on the Rotunda Active Wheel Speed Sensor Tester.

Is the current overload LED illuminated?

Yes REPAIR the suspect wheel speed sensor circuit for a short to voltage.
No GO to O4

O4 CHECK THE WHEEL SPEED SENSOR OUTPUT WITH THE ROTUNDA ACTIVE WHEEL SPEED SENSOR
TESTER

  • Raise the suspect wheel until it can spin freely.
    REFER to: Jacking and Lifting – Overview (100-02 Jacking and Lifting, Description and Operation).
  • While monitoring the Rotunda Active Wheel Speed Sensor Tester, slowly spin the suspect wheel.

Do the sensor output Light-emitting Diodes (LEDs) illuminate and flash?

Yes The system is operating correctly at this time. INSPECT all wheel speed sensor electrical connectors and the
ABS module electrical connectors. REPAIR or CLEAN the connector as necessary. ADDRESS the root cause of
any connector or pin issues.
No INSTALL a new wheel speed sensor.
REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

O5 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO BATTERY VOLTAGE

  • Ignition OFF.
  • Disconnect ABS module C135.
  • Disconnect the suspect wheel speed sensor.
  • Ignition ON.
  • For the Left Front (LF) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-45 Ground
C135-46 Ground

For the Right Front (RF) wheel speed sensor, measure:

Positive Lead Measurement / Action Negative Lead
C135-33 Ground
C135-34 Ground

Is any voltage present?

Yes REPAIR the affected circuit(s).
No GO to O6

O6 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR AN OPEN

  • Ignition OFF.
  • For the Left Front (LF) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-45 C150-1
C135-46 C150-2

For the Right Front (RF) wheel speed sensor, measure:

Positive Lead Measurement / Action Negative Lead
C135-33 C160-2
C135-34 C160-1

Are the resistances less than 3 ohms?

Yes GO to O7
No REPAIR the affected circuit(s).

O7 CHECK FOR SHORTED WHEEL SPEED SENSOR CIRCUITS

  • Ignition OFF.
  • Disconnect ABS module C135 (if not previously disconnected).
  • Disconnect the suspect wheel speed sensor (if not previously disconnected).
  • For the Left Front (LF) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C150-1 C150-2

For the Right Front (RF) wheel speed sensor, measure:

Positive Lead Measurement / Action Negative Lead
C160-1 C160-2

Is the resistance greater 10,000 ohms?

Yes If DTC C0031:11 or C0034:11 are present, GO to O8
If DTC C0031:15 or C0034:15 are present, GO to O9
No REPAIR the affected circuit(s).

O8 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO GROUND

  • For the Left Front (LF) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-45 Ground
C135-46 Ground

For the Right Front (RF) wheel speed sensor, measure:

Positive Lead Measurement / Action Negative Lead
C135-33 Ground
C135-34 Ground

Are the resistances greater than 10,000 ohms?

Yes GO to O9
No REPAIR the affected circuit(s).

O9 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OUTPUT

  • Ignition OFF.
  • Connect ABS module C135.
  • Ignition ON.
  • For the Left Front (LF) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C150-1 C150-2

For the Right Front (RF) wheel speed sensor, measure:

Positive Lead Measurement / Action Negative Lead
C160-1 C160-2

Is the voltage greater 10 volts?

Yes INSTALL a new wheel speed sensor.
REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

No GO to O10

O10 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

  • Ignition OFF.
  • Disconnect and inspect ABS module C135 (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Connect the suspect wheel speed sensor.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

Wheel Speed Sensor Electrical Fault DTCs – Rear

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

Active wheel speed sensors generate a square wave signal proportional to wheel speed which is sent to the ABS
module. Each wheel speed sensor is connected to the ABS module through 2 wires and a connector at each wheel
speed sensor. One wire is for sensor voltage supply from the ABS module and the other wire is for the signal return to the
ABS module. When the ignition is set to RUN, the ABS module carries out a self-test by sending a reference voltage
through the wheel speed sensors and their circuitry.

Diagnostic Trouble Code (DTC) Fault Trigger Conditions

DTC Description Fault Trigger Conditions
C0037:11 Left Rear
Wheel Speed
Sensor:
Circuit Short
to Ground		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if there
is a short to ground in the sensor signal return circuit or if the sensor has an internal short to
ground.
C003A:11 Right Rear
Wheel Speed
Sensor:
Circuit Short
to Ground
C0037:15 Left Rear
Wheel Speed
Sensor:
Circuit Short
to Battery or
Open		 These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if there
is a short to battery voltage or an open in the sensor signal return circuit. A short to battery
voltage may be due to the sensor signal return circuit and the sensor voltage supply circuit
shorted together. These Diagnostic Trouble Codes (DTCs) also set if the sensor has an
internal short to battery voltage or an open circuit.
C003A:15 Right Rear
Wheel Speed
Sensor:
Circuit Short
to Battery or
Open

Possible Causes

  • Wiring, terminals or connectors
  • Wheel speed sensor
  • ABS module

Visual Inspection and Diagnostic Pre-checks

  • Make sure the wheel speed sensor harness is routed correctly and is undamaged.
  • Make sure the wheel speed sensor electrical connector is free from any corrosion or other contaminants.

PINPOINT TEST P : WHEEL SPEED SENSOR ELECTRICAL FAULT DTCS – REAR

P1 CHECK FOR FAULT REPEATABILITY

  • Ignition ON.
  • Using a diagnostic scan tool, clear all ABS module Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Test drive the vehicle above 20 km/h (12 mph).
  • Bring the vehicle to a safe stop.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Is DTC C0031:11, C0031:15, C0034:11 and/or C0034:15 present?

Yes If the Rotunda Active Wheel Speed Sensor Tester is available, GO to P2
If the Rotunda Active Wheel Speed Sensor Tester is not available and DTC C0037:15 or C003A:15 is present,
GO to P5
If the Rotunda Active Wheel Speed Sensor Tester is not available and DTC C0037:11 or C003A:11 is present,
GO to P7
No The system is operating correctly at this time. INSPECT both front wheel speed sensor electrical connectors
and the ABS module electrical connector. REPAIR or CLEAN the connector as necessary. ADDRESS the root
cause of any connector or pin issues.

P2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OUTPUT USING THE ROTUNDA ACTIVE WHEEL
SPEED SENSOR TESTER

  • Ignition OFF.
  • Disconnect the suspect wheel speed sensor electrical connector.
  • Connect the Rotunda Active Wheel Speed Sensor Tester to the wheel speed sensor connectors.
  • Ignition ON.
  • Select the correct system polarity on the Rotunda Active Wheel Speed Sensor Tester and turn the power
    switch to the ON position.

Is the tester output LED illuminated?

Yes GO to P3
No GO to P5

P3 CHECK THE WHEEL SPEED SENSOR FOR A SHORT TO VOLTAGE WITH THE ROTUNDA ACTIVE WHEEL
SPEED SENSOR TESTER

  • Observe the current overload LED on the Rotunda Active Wheel Speed Sensor Tester.

Is the current overload LED illuminated?

Yes REPAIR the suspect wheel speed sensor circuit for a short to voltage.
No GO to P4

P4 CHECK THE WHEEL SPEED SENSOR OUTPUT WITH THE ROTUNDA ACTIVE WHEEL SPEED SENSOR
TESTER

  • Raise the suspect wheel until it can spin freely.
    REFER to: Jacking and Lifting – Overview (100-02 Jacking and Lifting, Description and Operation).
  • While monitoring the Rotunda Active Wheel Speed Sensor Tester, slowly spin the suspect wheel.

Do the sensor output Light-emitting Diodes (LEDs) illuminate and flash?

Yes The system is operating correctly at this time. INSPECT all wheel speed sensor electrical connectors and the
ABS module electrical connectors. REPAIR or CLEAN the connector as necessary. ADDRESS the root cause of
any connector or pin issues.
No INSTALL a new wheel speed sensor.
REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

P5 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO BATTERY VOLTAGE

  • Ignition OFF.
  • Disconnect ABS module C135.
  • Disconnect the suspect wheel speed sensor.
  • Ignition ON.
  • For the Right Rear (RR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-42 Ground
C135-43 Ground

Is any voltage present?

Yes REPAIR the affected circuit(s).
No GO to P6

P6 CHECK THE WHEEL SPEED CIRCUITS FOR AN OPEN

  • Ignition OFF.
  • For the Left Rear (LR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-36 C440-1
C135-37 C440-2

For the Right Rear (RR) wheel speed sensor, measure:

Positive Lead Measurement / Action Negative Lead
C135-42 C426-2
C135-43 C426-1

Are the resistances less than 3 ohms?

Yes GO to P7
No REPAIR the affected circuit(s).

P7 CHECK FOR SHORTED WHEEL SPEED SENSOR CIRCUITS

  • Ignition OFF.
  • Disconnect ABS module C135 (if not previously disconnected).
  • Disconnect the suspect wheel speed sensor (if not previously disconnected).
  • For the Left Rear (LR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C440-1 C440-2
  • For the Right Rear (RR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C426-1 C426-2

Is the resistance greater 10,000 ohms?

Yes If DTC C0037:11 or C003A:11 are present, GO to P8
If DTC C0037:15 or C003A:15 are present, GO to P9
No REPAIR the affected circuit(s).

P8 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO GROUND

  • For the Left Rear (LR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-36 Ground
C135-37 Ground
  • For the Right Rear (RR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C135-42 Ground
C135-43 Ground

Are the resistances greater than 10,000 ohms?

Yes GO to P9
No REPAIR the affected circuit(s).

P9 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OUTPUT

  • Ignition OFF.
  • Connect ABS module C135.
  • Ignition ON.
  • For the Left Rear (LR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C440-1 C440-2
  • For the Right Rear (RR) wheel speed sensor, measure:
Positive Lead Measurement / Action Negative Lead
C426-1 C426-2

Is the voltage greater 10 volts?

Yes INSTALL a new wheel speed sensor.
REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).

No GO to P10

P10 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

  • Ignition OFF.
  • Disconnect and inspect ABS module C135 (if not previously disconnected).
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Connect the suspect wheel speed sensor.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

U3003:62 – ABS Module

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module, hydraulic pump and solenoid valves require an operating voltage that is between 10 and 17 volts. The
ABS module receives this voltage from the BJB. The BCM broadcasts a vehicle voltage message on the High Speed
Controller Area Network (HS-CAN) for other modules to use as a check for their own voltage inputs. Excessive resistance
or an open in the ABS module voltage circuits, a discharged battery, an inoperative charging system or a communication
concern results in the ABS module setting a Diagnostic Trouble Code (DTC). This is most likely due to a concern in the
High Speed Controller Area Network (HS-CAN) or a concern in the vehicle battery or charging system.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U3003:62 Battery Voltage:
Signal Compare
Failure		 This DTC sets when the vehicle voltage message sent from the BCM varies by more
than 2 volts from the actual voltage measured by the ABS module.

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • Communication concern
  • Charging system concern
  • Vehicle battery
  • BCM
  • ABS module

PINPOINT TEST Q : U3003:62 – ABS MODULE

Q1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE BATTERY VOLTAGE DIAGNOSTIC TROUBLE
CODES (DTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Is DTC U3003:16 or U3003:17 present?

Yes For DTC U3003:16 GO to Pinpoint Test A
For DTC U3003:17 GO to Pinpoint Test F
No GO to Q2

Q2 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE COMMUNICATION DIAGNOSTIC TROUBLE
CODES (DTCS)

  • Review the results of the previous ABS module self-test.

Is DTC U0140:00 present in the ABS module?

Yes GO to Pinpoint Test D
No GO to Q3

Q3 CHECK FOR BCM (BODY CONTROL MODULE) BATTERY VOLTAGE DIAGNOSTIC TROUBLE CODES
(DTCS)

Using a diagnostic scan tool, carry out the BCM self-test.

Is DTC U3003:16 and/or U3003:17 present in the BCM?

Yes DIAGNOSE the BCM Diagnostic Trouble Codes (DTCs).
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and
Testing).

No GO to Q4

Q4 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE VOLTAGE SUPPLY (VPWR_ABS) PARAMETER
IDENTIFICATION (PID) AND THE BCM (BODY CONTROL MODULE) BATTERY VOLTAGE (V_BATT) PARAMETER
IDENTIFICATION (PID)

  • Measure and record the voltage at the battery.
  • Using a diagnostic scan tool, observe the ABS module VPWR_ABS and the BCM V_BATT Parameter
    Identifications (PIDs).

Do both Parameter Identifications (PIDs) display within 0.2 volt of the recorded battery voltage?

Yes The condition that caused the DTC to set is not present at this time. The DTC may have been set due to
excessive resistance at the battery terminals or in the High Speed Controller Area Network (HS-CAN).
INSPECT the battery terminals for dirt, corrosion and other foreign material that could cause excessive
resistance. VERIFY the integrity of the module connectors and wiring. REPAIR as necessary.
No If the ABS module VPWR_ABS Parameter Identification (PID) does not display within 0.2 volt of battery voltage,
GO to Pinpoint Test A
If the BCM V_BATT Parameter Identification (PID) does not display within 0.2 volt of battery voltage,
DIAGNOSE the BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

U0300:00

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module and the SASM require correct vehicle configuration information to operate correctly. This information is
programmed into the module when a new module is installed. The BCM is also programmed with the vehicle
configuration information and shares this information with other modules over the High Speed Controller Area Network
(HS-CAN). Incomplete or improper flash programming procedures, a loss of communication between the BCM and ABS
module or SASM, swapping modules between vehicles or an internal failure of one or more modules causes a mismatch
of vehicle configuration information between the modules.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
U0300:00 Internal Control Module Software
Incompatibility: No Sub Type
Information		 This DTC sets when the vehicle configuration information transmitted
by the BCM does not match what is stored in the ABS module or the
SASM.

PINPOINT TEST R : U0300:00

R1 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OR SASM (STEERING ANGLE SENSOR
MODULE) AND BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module or SASM self-test.
  • Using a diagnostic scan tool, carry out the BCM self-test.

Are there any communication or module internal failure Diagnostic Trouble Codes (DTCs) present in either of
the modules?

Yes For ABS module Diagnostic Trouble Codes (DTCs), GO to the ABS Module DTC Chart.
For SASM Diagnostic Trouble Codes (DTCs), GO to the SASM DTC Chart.
For BCM Diagnostic Trouble Codes (DTCs),
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and
Testing).

No If DTC U0300:00 is present in the ABS module, GO to R2
If DTC U0300:00 is present in the SASM, GO to R3

R2 PROGRAM THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE

  • Using a diagnostic scan tool, program the ABS module using as-built data.
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Is DTC U0300:00 present in the ABS module?

Yes GO to R4

No The concern was caused by an incomplete or improperly programmed ABS module, the repair is
complete.

R3 PROGRAM THE SASM (STEERING ANGLE SENSOR MODULE)

  • Using a diagnostic scan tool, program the SASM using as-built data.
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the SASM self-test.

Is DTC U0300:00 present in the SASM?

Yes GO to R4
No The concern was caused by an incomplete or improperly programmed SASM, the repair is
complete.

R4 PROGRAM THE BCM (BODY CONTROL MODULE)

  • Using a diagnostic scan tool, program the BCM using as-built data.
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ABS module or SASM self-test.

Is DTC U0300:00 present in the ABS module or SASM?

Yes If DTC U0300:00 is present in the ABS module, GO to R5
If DTC U0300:00 is present in the SASM, GO to R6
No The concern was caused by a incomplete or improperly programmed BCM, the repair is
complete.

R5 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

  • Ignition OFF.
  • Disconnect and inspect ABS module C135.
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

R6 CHECK FOR CORRECT SASM (STEERING ANGLE SENSOR MODULE) OPERATION

  • Ignition OFF.
  • Disconnect and inspect the SASM electrical connectors.
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect the SASM electrical connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new SASM.
REFER to: Steering Angle Sensor Module (SASM) (211-05 Steering Column Switches, Removal and
Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

The Traction Control System Cannot Be Disabled — Vehicles Equipped With a 2.0L Gasoline Turbocharged
Direct Injection (GTDI) Engine

Refer to Wiring Diagrams Cell 60 for schematic and connector information.

Normal Operation and Fault Conditions

When the driver deactivates traction control or Electronic Stability Control (ESC) using the Electronic Stability Control
(ESC) OFF switch, the ABS module continues to monitor for vehicle instability and excessive wheel spin but no longer
takes any action when either condition is detected.

The Electronic Stability Control (ESC) OFF switch uses 2 circuits, one circuit is hardwired to the ABS module and the
other circuit is ground. When the switch is pressed, the ABS module detects the ground signal and sends a message to
the BCM over the High Speed Controller Area Network (HS-CAN) to illuminate the stability/traction control disabled
indicator (sliding car OFF icon). The BCM, acting as a gateway, relays this message to the IPC over the Medium Speed
1/23/2021 Anti-Lock Brake System (ABS) and Stability Control – Diagnosis and Testing • 2012 Ford Focus
Controller Area Network (MS-CAN). The IPC responds by illuminating the stability/traction control disabled indicator
(sliding car OFF icon).

A short to ground in the ABS module hardwired circuit, an open in one or both of the circuits, an inoperative switch or an
internal failure in the ABS module causes the traction control disable function to become inoperative.

If equipped, MyKey® allows users to configure traction control to be either always on or selectable. If a MyKey®
restricted key is in use with the MyKey® traction control feature configured to “always on”, traction control cannot be
disabled. An admin key must be used to enable and disable traction control.

NOTE: For vehicles equipped with Intelligent Access (IA), this test requires the use of at least 2 Intelligent Access (IA)
keys programmed to the vehicle, one admin Intelligent Access (IA) key and one restricted Intelligent Access (IA) key.

NOTE: For vehicles not equipped with Intelligent Access (IA), this test requires the use of at least 2 Integrated Keyhead
Transmitters (IKTs) programmed to the vehicle, one admin Integrated Keyhead Transmitter (IKT) and one restricted
Integrated Keyhead Transmitter (IKT).

PINPOINT TEST S : THE TRACTION CONTROL SYSTEM CANNOT BE DISABLED — VEHICLES EQUIPPED WITH A 2.0L
GASOLINE TURBOCHARGED DIRECT INJECTION (GTDI) ENGINE

S1 VERIFY THAT THE KEY IN USE IS NOT RESTRICTED

  • For vehicles equipped with Intelligent Access (IA),
  • place 1 Intelligent Access (IA) key inside the vehicle and all other Intelligent Access (IA) keys at
    least 1 meter (3 feet) away from the vehicle.
  • press the start/stop button without pressing the brake pedal.
  • For vehicles without Intelligent Access (IA), turn the ignition to the ON position.
  • Monitor the message center.

Does the message center display MYKEY ACTIVE DRIVE SAFELY?

Yes The current Intelligent Access (IA) key or Integrated Keyhead Transmitter (IKT) is a restricted key and is
functioning correctly.
REPEAT the test using different Intelligent Access (IA) keys or Integrated Keyhead Transmitters (IKTs) until the
message center does not display MYKEY ACTIVE DRIVE SAFELY.
GO to S2

No GO to S2

S2 VERIFY THE MYKEY® TRACTION CONTROL SETTING

  • Using the message center, verify the MyKey® traction control setting configuration. Refer to the Owner’s
    Literature for information on configuring the MyKey® functions.

Is the MyKey® traction control setting configured to “always on”?

Yes GO to S3
No GO to S4

S3 VERIFY TRACTION CONTROL FUNCTION CAN BE DISABLED USING THE ADMIN INTELLIGENT ACCESS
(IA) KEY OR INTEGRATED KEYHEAD TRANSMITTER (IKT)

  • With the admin Intelligent Access (IA) key or Integrated Keyhead Transmitter (IKT) in the vehicle or ignition,
    press the Electronic Stability Control (ESC) OFF switch once.

Does the sliding car OFF icon illuminate and does the message center display TRACTION CONTROL OFF?

Yes The system is operating correctly at this time. The concern may have been caused by the use of a restricted
Intelligent Access (IA) key or Integrated Keyhead Transmitter (IKT) with the MyKey® traction control setting
configured to “always on”.
INFORM the customer that traction control can only be disabled using an admin Intelligent Access (IA) key or
Integrated Keyhead Transmitter (IKT) when the MyKey® traction control setting is configured to “always on”.

No GO to S4

S4 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE TRACTION CONTROL SWITCH STATUS
(TC_SW_STAT) PARAMETER IDENTIFICATION (PID)

  • Using a diagnostic scan tool, view the ABS module TC_SW_STAT Parameter Identification (PID).
  • Press and release the Electronic Stability Control (ESC) OFF switch while monitoring the ABS module
    TC_SW_STAT Parameter Identification (PID).

Does the Parameter Identification (PID) display ON when the switch is pressed and OFF when the switch is
released?

Yes GO to S5
No GO to S6

S5 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE TRACTION CONTROL SYSTEM STATUS
(TC_SYS_STAT) PARAMETER IDENTIFICATION (PID)

  • Press and release the Electronic Stability Control (ESC) OFF switch while monitoring the ABS module
    TC_SYS_STAT Parameter Identification (PID).

Does the Parameter Identification (PID) display ON when the switch is pressed and OFF when the switch is
released?

Yes DIAGNOSE the stability/traction control disabled indicator (sliding car OFF icon) and message center.
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center
and Warning Chimes, Diagnosis and Testing).

No GO to S6

S6 CHECK THE ELECTRONIC STABILITY CONTROL (ESC) OFF SWITCH

  • Ignition OFF.
  • Disconnect Electronic Stability Control (ESC) OFF switch C280.
  • While pressing and releasing the Electronic Stability Control (ESC) OFF switch, measure:
Positive Lead Measurement / Action Negative Lead
C280-4Component Side C280-12Component Side

Is the resistance less than 3 ohms when the switch is pressed and greater than 10,000 ohms when the switch is
released?

Yes GO to S7
No INSTALL a new Electronic Stability Control (ESC) OFF switch.

S7 CHECK THE ELECTRONIC STABILITY CONTROL (ESC) OFF SWITCH CIRCUITS FOR AN OPEN

  • Disconnect ABS module C135.
  • Measure:
Positive Lead Measurement / Action Negative Lead
C280-4 C135-4
  • Measure:
Positive Lead Measurement / Action Negative Lead
C280-12 Ground

Are the resistances less than 3 ohms?

Yes GO to S8
No REPAIR the affected circuit.

S8 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE HARDWIRED CIRCUIT FOR A SHORT TO
GROUND

  • Measure:
Positive Lead Measurement / Action Negative Lead
C280-4 Ground

Is the resistance greater than 10,000 ohms?

Yes GO to S9
No REPAIR the circuit.

S9 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

  • Inspect ABS module C135.
  • Repair:
  • corrosion (install new connector or terminal – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary
  • Connect ABS module C135. Make sure it seats and latches correctly.
  • Connect Electronic Stability Control (ESC) OFF switch C280.
  • Operate the system and determine if the concern is still present.

Is the concern still present?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern,
DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address
this concern, INSTALL a new ABS module and HCU.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal
and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded
connector. ADDRESS the root cause of any connector or pin issues.

Hotline tư vấn dịch vụ sửa chữa tại Garage VES

Holine : 03.4224.8182 Mr SANG
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