ABS Module DTC Chart

ABS MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Action
B1342	ECU is Defective	NOTE: If other DTCs are present, REPAIR them before installing a new component. CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE in this service information. REPEAT the self-test.
B1483	Brake Pedal Input Circuit Failure	The ABS module receives the brake pedal position switch signal from the Smart Junction Box (SJB) along the High Speed Controller Area Network (HS-CAN) bus. The ABS module compares the brake pedal position message to the signal from the brake pressure transducer (internal to the ABS module). If the brake pedal position message does not agree with the brake pressure signal, DTC B1483 sets. 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 MODULE article.
B1676	Battery Pack Voltage Out of Range	GO to PINPOINT TEST A .
B2477	Module Configuration Failure	CONFIGURE the ABS module. REFER to Programmable Module Installation (PMI) in MODULE CONFIGURATION article.
B2741	Sensor Cluster is Defective	NOTE: The stability control sensors are internal to the Restraints Control Module (RCM) and cannot be serviced separately. If a new yaw rate sensor, roll rate sensor, longitudinal accelerometer or lateral accelerometer are needed, a new RCM must be installed. CLEAR the DTCs. REPEAT the self-test. If B2471 returns, install a new RCM. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . article
B2900	VIN Mismatched (normally set when a new ABS module is installed)	GO to PINPOINT TEST F .
C1095	ABS Hydraulic Pump Motor Circuit Failure	GO to PINPOINT TEST B .
C1145	Wheel Speed Sensor RF Input Circuit Failure	GO to PINPOINT TEST C .
C1155	Wheel Speed Sensor LF Input Circuit Failure	GO to PINPOINT TEST C .
C1165	Wheel Speed Sensor RR Input Circuit Failure	GO to PINPOINT TEST C .
C1175	Wheel Speed Sensor LR Input Circuit Failure	GO to PINPOINT TEST C .
C1233	Wheel Speed LF Input Signal Missing	GO to PINPOINT TEST D .
C1234	Wheel Speed RF Input Signal Missing	GO to PINPOINT TEST D .
C1235	Wheel Speed RR Input Signal Missing	GO to PINPOINT TEST D .
C1236	Wheel Speed LR Input Signal Missing	GO to PINPOINT TEST D .
C1277	Steering Wheel Angle 1 and 2 Circuit Failure	GO to PINPOINT TEST I .
C1278	Steering Wheel Angle 1 and 2 Signal Faulted	GO to PINPOINT TEST I .
C1280	Yaw Rate Sensor Signal Fault	NOTE: The yaw rate sensor is integral to the RCM and cannot be serviced separately. If a new yaw rate sensor is needed, a new RCM must be installed. REFER to Restraints Control Module (RCM) Removal and Installation in SUPPLEMENTAL RESTRAINT SYSTEM article. ADHERE to all safety warnings in the procedure.INSPECT the RCM for damage. VERIFY that all RCM fasteners are tightened to their correct specification. CLEAR the DTCs. TEST DRIVE the vehicle at speeds above 20 km/h (12 mph). REPEAT the self-test.If DTC C1280 returns, INSTALL a new RCM . REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.
C1282	Lateral Accelerometer Signal Fault	NOTE: The lateral acceleration sensor is integral to the RCM and cannot be serviced separately. If a new lateral acceleration sensor is needed, a new RCM must be installed. REFER to Restraints Control Module (RCM) Removal and Installation in SUPPLEMENTAL RESTRAINT SYSTEM article. ADHERE to all safety warnings in the procedure.INSPECT the RCM for damage. VERIFY that all RCM fasteners are tightened to their correct specification. CLEAR the DTCs. TEST DRIVE the vehicle at speeds above 20 km/h (12 mph). REPEAT the self-test.If DTC C1282 returns, INSTALL a new RCM . REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.
C1288	Brake Pressure Transducer Input Circuit Failure	GO to PINPOINT TEST Y .
C1440	Pressure Transducer Main/Primary Signal Failure	GO to PINPOINT TEST Y .
C1470	TCS Function Temporarily Disabled (Thermal Brake Protection)	If other DTCs are retrieved along with this DTC, DIAGNOSE them first. CLEAR the DTC. VERIFY ABS operation.
C1516	Roll Rate Signal Fault	NOTE: The roll rate sensor is integral to the RCM and cannot be serviced separately. If a new roll rate sensor is needed, a new RCM must be installed. REFER to Restraints Control Module (RCM) Removal and Installation in SUPPLEMENTAL RESTRAINT SYSTEM article. ADHERE to all safety warnings in the procedure.INSPECT the RCM for damage. VERIFY that all RCM fasteners are tightened to their correct specification. CLEAR the DTCs. TEST DRIVE the vehicle at speeds above 20 km/h (12 mph). REPEAT the self-test.If DTC C1516 returns, INSTALL a new RCM . REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.
C1805	Mismatched PCM and/or ABS Module	GO to PINPOINT TEST F .
C1963	Stability Control Inhibit Warning	This DTC is for information only. CHECK for DTCs in the Power Steering Control Module (PSCM). REFER to STEERING SYSTEM article. REPAIR as necessary. If no DTCs are present in the EPAS module, CLEAR the DTC. REPEAT the self-test.
C1991	Module Calibration Failure	Using the scan tool, CARRY OUT the IVD Initialization sequence. CLEAR the DTCs. REPEAT the self-test.
C1996	Active Yaw Control Disabled	GO to PINPOINT TEST G .
C2770	Longitudinal Acceleration Sensor Signal Fault	NOTE: The longitudinal acceleration sensor is integral to the RCM and cannot be serviced separately. If a new longitudinal acceleration sensor is needed, a new RCM must be installed. REFER to Restraints Control Module (RCM) Removal and Installation in SUPPLEMENTAL RESTRAINT SYSTEM article. ADHERE to all safety warnings in the procedure.INSPECT the RCM for damage. VERIFY that all RCM fasteners are tightened to their correct specification. CLEAR the DTCs. TEST DRIVE the vehicle at speeds above 20 km/h (12 mph). REPEAT the self-test.If DTC C2770 returns, INSTALL a new RCM . REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.
C2777	Sensor Cluster Bus Failure	GO to PINPOINT TEST E .
C2778	Sensor Cluster Power Supply Failure	CLEAR the DTCs. REPEAT the self-test. If C2778 is present, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE in this service information.
U0001	High Speed CAN Communication Bus	REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0100	Lost Communication with ECM /PCM	REPAIR all other DTCs first. If DTC U0100 is still present, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	REPAIR all other DTCs first. If DTC U0114 is still present, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0140	Lost Communication with Body Control Module	REPAIR all other DTCs first. If DTC U0140 is still present, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0151	Lost Communication With Restraints Control Module	GO to PINPOINT TEST E .
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control 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	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 article to diagnose the PCM.
U0402	Invalid Data Received From Transmission Control 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 article to diagnose the Transmission Control Module (TCM).
U0414	Invalid Data Received From Four-Wheel Drive Clutch Control 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 article to diagnose the TCM .
U0452	Invalid Data Received From Restraints Control Module (RCM)	GO to PINPOINT TEST E .
U1901	CAN Network #2 Communication Bus Fault-Receive Error	GO to PINPOINT TEST E .
U2050	No Application Present	CONFIGURE the ABS module. REFER to Programmable Module Installation (PMI) in 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 in this service information. CLEAR the DTC. REPEAT the self-test.