ABS Module DTC Chart

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If DTC B2900, C1805 and U0001 are set at the same time, diagnose the concern for U0001 first.

ABS MODULE DTC CHART

DTC	Description	Source	Action
B1342	ECU is Defective	ABS Module	NOTE: If other DTCs are present, REPAIR them before installing a new component. CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new module. REFER to Anti-Lock Brake System (ABS) Module . REPEAT the self-test.
B1483	Brake Pedal Input Circuit Failure	ABS Module	The ABS module receives the brake pedal input from the smart junction box (SJB) along the high speed communication area network (HS-CAN) bus. If the information from the SJB does not agree with ABS module booster pedal force switch input and brake pressure input, DTC B1483 will set. CHECK for communication DTCs, REFER to MODULE COMMUNICATIONS NETWORK article. If there are no communication DTCs, CHECK for DTCs in the SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
B1676	Battery Pack Voltage Out of Range	ABS Module	Go to Pinpoint Test A .
B2477	Module Configuration Failure	ABS Module	RECONFIGURE the ABS module. REFER to MODULE CONFIGURATION article and follow the scan tool directions for the configuration procedure.
B2741	Sensor Cluster is Defective	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
B2900	VIN Mismatched (normally set when a new ABS module is installed)	ABS Module	DIAGNOSE DTC U0001 before diagnosing DTC B2900. VERIFY that the module has the correct as-built data. CHECK for correct powertrain control module (PCM) configuration using the scan tool. CONFIGURE the component as necessary. REFER to Programmable Module Installation in MODULE CONFIGURATION article. CLEAR the DTC. REPEAT the self-test.
C1095	ABS Hydraulic Pump Motor Circuit Failure	ABS Module	Go to Pinpoint Test B .
C1145	Wheel Speed Sensor RF Input Circuit Failure	ABS Module	Go to Pinpoint Test C .
C1155	Wheel Speed Sensor LF Input Circuit Failure	ABS Module	Go to Pinpoint Test C .
C1165	Wheel Speed Sensor RR Input Circuit Failure	ABS Module	Go to Pinpoint Test C .
C1175	Wheel Speed Sensor LR Input Circuit Failure	ABS Module	Go to Pinpoint Test C .
C1233	Wheel Speed LF Input Signal Missing	ABS Module	INSPECT the tire sizes. If all the tire sizes are not the same and/or do not meet vehicle manufacturer specifications, INSTALL new as necessary. If all the tire sizes are the same and/or do meet vehicle manufacturer specifications, go to Pinpoint Test D .
C1234	Wheel Speed RF Input Signal Missing	ABS Module	INSPECT the tire sizes. If all the tire sizes are not the same and/or do not meet vehicle manufacturer specifications, INSTALL new as necessary. If all the tire sizes are the same and/or do meet vehicle manufacturer specifications, go to Pinpoint Test D .
C1235	Wheel Speed RR Input Signal Missing	ABS Module	INSPECT the tire sizes. If all the tire sizes are not the same and/or do not meet vehicle manufacturer specifications, INSTALL new as necessary. If all the tire sizes are the same and/or do meet vehicle manufacturer specifications, go to Pinpoint Test D .
C1236	Wheel Speed LR Input Signal Missing	ABS Module	INSPECT the tire sizes. If all the tire sizes are not the same and/or do not meet vehicle manufacturer specifications, INSTALL new as necessary. If all the tire sizes are the same and/or do meet vehicle manufacturer specifications, go to Pinpoint Test D .
C1277	Steering Wheel Angle 1 and 2 Circuit Failure	ABS Module	NOTE: The electronic power assist steering (EPAS) module contains the steering wheel angle sensor. The sensor is not serviceable separately from the module. The ABS module receives the steering wheel angle sensor information over the HS-CAN bus. CLEAR the DTCs. TEST DRIVE the vehicle. RETRIEVE the ABS module DTCs. If DTC C1277 returns, REFER to Diagnosis and Testing in STEERING SYSTEM - GENERAL INFORMATION article to diagnose the steering wheel angle sensor.
C1278	Steering Wheel Angle 1 and 2 Signal Faulted	ABS Module	NOTE: The electronic power assist steering (EPAS) module contains the steering wheel angle sensor. The sensor is not serviceable separately from the module. The ABS module receives the steering wheel angle sensor information over the HS-CAN bus. CLEAR the DTCs. TEST DRIVE the vehicle. RETRIEVE the ABS module DTCs. If DTC C1278 returns, REFER to Diagnosis and Testing in STEERING SYSTEM - GENERAL INFORMATION article to diagnose the steering wheel angle sensor.
C1279	Yaw Rate Sensor Circuit Failure	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C1280	Yaw Rate Sensor Signal Fault	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C1281	Lateral Accelerometer Circuit Failure	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C1282	Lateral Accelerometer Signal Fault	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C1288	Brake Pressure Transducer Input Circuit Failure	ABS Module	CLEAR the DTCs. REPEAT the self-test. If DTC C1288 is present, make sure all hydraulic control unit (HCU) and ABS module fasteners are tightened to their correct torque specification. If all fasteners are tightened to their correct torque specification, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module .
C1440	Pressure Transducer Main/Primary Signal Failure	ABS Module	CLEAR the DTCs. REPEAT the self-test. If DTC C1440 is present, MAKE SURE all HCU and ABS module fasteners are tightened to their correct torque specification. If all fasteners are tightened to their correct torque specification, INSTALL a new HCU. REFER to Hydraulic Control Unit (HCU) .
C1470	TCS Function Temporarily Disabled (Thermal Brake Protection)	ABS Module	CLEAR the DTC. VERIFY ABS operation.
C1516	Roll Rate Signal Fault	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C1517	Roll Rate Sensor Circuit Fault	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C1805	Mismatched PCM and/or ABS Module	ABS Module	DIAGNOSE DTC U0001 before diagnosing DTC C1805. CHECK for correct PCM and ABS module configurations using the scan tool. CONFIGURE the component as necessary. FOLLOW the scan tool directions for the ABS module configuration or REFER to Programmable Module Installation in MODULE CONFIGURATION article. CLEAR the DTC. REPEAT the self-test.
C1963	Stability Control Inhibit Warning	ABS Module	This DTC is for information only. CHECK for DTCs in the electric power assist steering (EPAS) module. REFER to STEERING SYSTEM - GENERAL INFORMATION article. REPAIR as necessary. If no DTCs are present in the EPAS module, CLEAR the DTC. REPEAT the self-test.
C1991	Module Calibration Failure	ABS Module	CONFIGURE the ABS module with as-built data, REFER to Programmable Module Installation in MODULE CONFIGURATION article. CLEAR the DTC. REPEAT the self-test. If DTC C1991 is present, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module .
C1996	Active Yaw and/or Roll Control Disabled	ABS Module	Go to Pinpoint Test F .
C2769	Longitudinal Acceleration Sensor Circuit Failure	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C2770	Longitudinal Acceleration Sensor Signal Fault	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C2777	Sensor Cluster Bus Failure	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
C2778	Sensor Cluster Power Supply Failure	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
U0001	High Speed CAN Communication Bus	ABS Module	REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0100	Lost Communication with ECM/PCM	ABS Module	REPAIR all other DTCs first. If DTC U0100 is still present, REFER to the Master DTC Chart in MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	ABS Module	REPAIR all other DTCs first. If DTC U0114 is still present, REFER to the Master DTC Chart in MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0140	Lost Communication with Body Control Module	ABS Module	REPAIR all other DTCs first. If DTC U0140 is still present, REFER to the Master DTC Chart in MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	ABS Module	REPAIR all other DTCs first. If DTC U0155 is still present, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0401	Invalid Data Received From ECM/PCM	ABS Module	If other DTCs are present along with U0401, REPAIR those DTCs first. If U0401 is the only DTC present, CARRY OUT the PCM self-test, RETRIEVE and RECORD any DTCs. REFER to the Introduction - Gasoline Engines article to diagnose the PCM.
U0402	Invalid Data Received From Transmission Control Module	ABS Module	If other DTCs are present along with U0402, REPAIR those DTCs first. If U0402 is the only DTC present, CARRY OUT the PCM self-test, RETRIEVE and RECORD any DTCs. REFER to the Introduction - Gasoline Engines article to diagnose the TCM.
U0414	Invalid Data Received From Four-Wheel Drive Clutch Control Module	ABS Module	If other DTCs are present along with U0414, REPAIR those DTCs first. If U0414 is the only DTC present, CARRY OUT the PCM self-test, RETRIEVE and RECORD any DTCs. REFER to the Introduction - Gasoline Engines article to diagnose the TCM.
U1901	CAN Network #2 Communication Bus Fault-Receive Error	ABS Module	VERIFY that the sensor cluster is correctly installed. If OK, go to Pinpoint Test E .
U2050	No Application Present	ABS Module	CONFIGURE the ABS module. REFER to MODULE CONFIGURATION article. CLEAR the DTCs. RETRIEVE the DTCs and VERIFY successful module configuration. If DTC U2050 is retrieved again, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . CLEAR the DTC. REPEAT the self-test.