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C1137 RAS CIRCUIT BRC-71 < DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS] C D E G H I J K L M A B BRC N O P C1137 RAS CIRCUIT Description INFOID:0000000005234549 The ABS actuator and electric unit (control unit) and the RAS control unit exchange signals via the CAN com- DTC Logic INFOID:0000000005234550 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. DTC REPRODUCTION PROCEDURE 1. Turn the ignition switch ON. 2. Perform self-diagnosis for “ABS” with CONSULT-III. Is DTC “C1137” detected? YES >> Proceed to diagnosis procedure. Refer to . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005234551 1. CHECK RAS CONTROL UNIT Perform self-diagnosis for “4WAS(MAIN)/RAS/HICAS” with CONSULT-III. Is any item indicated on the self-diagnosis display? YES >> Repair or replace error-detected parts. NO >> GO TO 2. 2. ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS 1. Erase self-diagnosis results for “ABS” with CONSULT-III. 2. Turn the ignition switch OFF. 3. Start the engine. Drive the vehicle for a while. 4. Make sure that RAS warning lamp turns OFF. 5. Stop the engine. Perform self-diagnosis for “ABS” with CONSULT-III. Is any item indicated on the self-diagnosis display? YES >> Replace ABS actuator and electric unit (control unit). NO >> Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector. If any items and damaged, repair or replace error-detected parts. Special Repair Requirement INFOID:0000000005528316 1. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua- BRC-9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU- >> END DTC Display item Malfunction detected condition Possible cause C1137 RAS CIRCUIT When RAS control unit is malfunction. • Harness or connector (control unit) • RAS control unit |