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BRC-142 < COMPONENT DIAGNOSIS > [ESP/TCS/ABS] C1143, C1144 STEERING ANGLE SENSOR C1143, C1144 STEERING ANGLE SENSOR Description INFOID:0000000001731142 The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel, DTC Logic INFOID:0000000001731143 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. CHECK SELF-DIAGNOSIS RESULTS Check the self-diagnosis results. Is above displayed on the self-diagnosis display? YES >> Proceed to diagnosis procedure. Refer to BRC-142, "Diagnosis Procedure" . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000001731144 INSPECTION PROCEDURE 1. CHECK CONNECTOR 1. Turn ignition switch OFF. 2. Disconnect ABS actuator and electric unit (control unit) connector. 3. Disconnect steering angle sensor connector. 4. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or 5. Reconnect connectors and then perform the self-diagnosis. Refer to Is any item indicated on the self-diagnosis display? YES >> GO TO 2 NO >> Poor connection of connector terminal. Repair or replace connector. 2. CHECK STEERING ANGLE SENSOR HARNESS 1. Turn ignition switch OFF. 2. Disconnect steering angle sensor connector. DTC Display item Malfunction detected condition Possible cause C1143 ST ANG SEN CIRCUIT Neutral position of steering angle sensor is dislocated, or • Harness or connector models) • ABS actuator and electric unit (control unit) C1144 ST ANG SEN SIGNAL Neutral position of steering angle sensor is not finished. Self-diagnosis results ST ANG SEN CIRCUIT ST ANG SEN SIGNAL |