Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Index

NOTE: The need to recalibrate the ABS module is indicated by the active/fail lamp flashing and the presence of DTC C1998. There are other service actions that can require recalibration when there is no flashing lamp. For additional information, refer to the ANTI-LOCK BRAKE SYSTEM (ABS) MODULE CALIBRATION . The lamp will flash after clearing the DTCs that are indicated on the ABS calibration list.

NOTE: If DTC B2900, C1805 and U1900 are set at the time, diagnose the concern for U1900 first.

NOTE: DTC C1730 (Reference Voltage Out Of Range) must be repaired before DTC C1279, C1280, C1281, C1282, C1288, C1289.

ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC	Description	Source	Action
B1342	ECU is Defective	ABS Module	CLEAR the DTCs. RETRIEVE the DTCs. If other DTCs are retrieved, repair them, CLEAR the DTCs, and REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new ABS module. REFER to E - STABILITY ASSISt. REPEAT the self-test.
B1483	Brake Pedal Input Circuit Failure	ABS Module	Go To PINPOINT TEST B .
B1676	Battery Pack Voltage Out of Range	ABS Module	Go To PINPOINT TEST C .
B2477	Module Configuration Failure	ABS Module	REFER to MODULE CONFIGURATION .
B2734	Pedal Travel Sensor (PTS) Supply Error	ABS Module	Go To PINPOINT TEST N .
B2736	Pedal Travel Sensor (PTS) Circuit Fault	ABS Module	Go To PINPOINT TEST N .
B2737	Pedal Travel Sensor (PTS) Jammed Error	ABS Module	Go To PINPOINT TEST N .
B2738	Pedal Travel Sensor (PTS) Spike Error	ABS Module	Go To PINPOINT TEST N .
B2740	Pedal Travel Sensor (PTS) Spike Error	ABS Module	Go To PINPOINT TEST N .
B2741	Sensor Cluster Loop End	ABS Module	FOLLOW the diagnostic tool directions for the calibration procedure.
B2900	VIN Mismatched	ABS Module	VERIFY that the module has the correct as-built data. CHECK for correct powertrain control module (PCM) and ABS module configuration using the diagnostic tool. RECONFIGURE the component as necessary. FOLLOW the diagnostic tool directions for the ABS module configuration or REFER to ENGINE - 4.6L & 5.4L or ENGINE - 5.4L (4V) for the PCM. CLEAR the DTC. REPEAT the self-test.
C1095	ABS Hydraulic Pump Motor Circuit Failure	ABS Module	Go To PINPOINT TEST D .
C1145	Speed Wheel Sensor RF Input Circuit Failure	ABS Module	Go To PINPOINT TEST F .
C1155	Speed Wheel Sensor LF Input Circuit Failure	ABS Module	Go To PINPOINT TEST F .
C1165	Speed Wheel Sensor RR Input Circuit Failure	ABS Module	Go To PINPOINT TEST E .
C1175	Speed Wheel Sensor LR Input Circuit Failure	ABS Module	Go To PINPOINT TEST E .
C1233	Speed Wheel LF Input Signal Missing	ABS Module	Go To PINPOINT TEST F .
C1234	Speed Wheel RF Input Signal Missing	ABS Module	Go To PINPOINT TEST F .
C1235	Speed Wheel RR Input Signal Missing	ABS Module	Go To PINPOINT TEST F .
C1236	Speed Wheel LR Input Signal Missing	ABS Module	Go To PINPOINT TEST F .
C1277	Steering Wheel Angle 1 and 2 Circuit Failure	ABS Module	Go To PINPOINT TEST G .
C1278	Steering Wheel Angle 1 and 2 Signal Faulted	ABS Module	Go To PINPOINT TEST G .
C1279	Sensor Cluster Circuit Failure	ABS Module	Go To PINPOINT TEST H .
C1280	Sensor Cluster Signal Fault	ABS Module	Go To PINPOINT TEST H .
C1281	Lateral Accelerometer Circuit Failure	ABS Module	Go To PINPOINT TEST H .
C1282	Lateral Accelerometer Signal Fault	ABS Module	Go To PINPOINT TEST H .
C1285	Booster Solenoid Circuit Failure	ABS Module	Go To PINPOINT TEST I .
C1287	Booster Pedal Force Switch Circuit Failure	ABS Module	Go To PINPOINT TEST J .
C1288	Pressure Transducer Main/Primary Input Circuit Failure	ABS Module	Go To PINPOINT TEST K .
C1440	Pressure Transducer Main/Primary Signal Fault	ABS Module	Go To PINPOINT TEST K .
C1730	Reference Voltage Out of Range (+5 V)	ABS Module	Go To PINPOINT TEST L .
C1805	Mismatched PCM and/or ABS/TC Module	ABS Module	CHECK for correct PCM and ABS module configuration using the diagnostic tool. RECONFIGURE the component as necessary. FOLLOW the diagnostic tool directions for the ABS module configuration or REFER to ENGINE - 4.6L & 5.4L or ENGINE - 5.4L (4V) for the PCM. CLEAR the DTC. REPEAT the self-test.
C1960	Driver Brake Apply Circuit Fault	ABS Module	Go To PINPOINT TEST M .
C1963	Stability System (ABS) Inhibit Warning	ABS Module	This DTC is for information only. GO to the PRINCIPLES OF OPERATION . CLEAR the DTC. REPEAT the self-test.
C1991	Module Calibration Failure	ABS Module	Follow the diagnostic tool directions for the calibration procedure.
C1996	Active Yaw System (ABS) Disabled	ABS Module	This DTC can be set if the ABS Module System is activated for 15 seconds of continuous operation. CHECK for any major chassis modifications, gross suspension misalignment, or other items that can alter the vehicle tracking dynamics. CLEAR the DTC. REPEAT the self-test.
C1998	Module Calibration Not Complete	ABS Module	Go To PINPOINT TEST P .
C2769	Longitudinal Acceleration Sensor Circuit Failure	ABS Module	Go To PINPOINT TEST H .
C2770	Longitudinal Acceleration Sensor Signal Fault	ABS Module	Go To PINPOINT TEST H .
C2777	Sensor Cluster Bus Failure	ABS Module	Go To PINPOINT TEST H .
C2778	Sensor Cluster Power Supply Failure	ABS Module	Go To PINPOINT TEST H .
U1009	SCP (J1850) Invalid or Missing Data for Engine Torque	PCM	REFER to INTRODUCTION article in ENGINE PERFORMANCE.
U1027	SCP (J1850) Invalid or Missing Data for Engine RPM	PCM	REFER to INTRODUCTION article in ENGINE PERFORMANCE.
U1059	SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL	PCM	REFER to INTRODUCTION article in ENGINE PERFORMANCE.
U1073	SCP (J1850) Invalid or Missing Data for Engine Coolant	PCM	REFER to INTRODUCTION article in ENGINE PERFORMANCE.
U1262	SCP (J1850) Communication Bus Fault	Network Fault	REFER to MODULE COMMUNICATIONS NETWORK .
U1900	CAN Network #1 Communication Bus Fault-Receive Error	Network Fault	REFER to MODULE COMMUNICATIONS NETWORK .
U1901	CAN Network #2 Communication Bus Fault-Receive Error	Network Fault	REFER to MODULE COMMUNICATIONS NETWORK .