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BRC-64 < DTC/CIRCUIT DIAGNOSIS > [TYPE 1] C1143, C1144 STEERING ANGLE SENSOR C1143, C1144 STEERING ANGLE SENSOR Description INFOID:0000000009479308 The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel, and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication. DTC Logic INFOID:0000000009479309 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 . NO >> Inspection End Diagnosis Procedure INFOID:0000000009479310 Regarding Wiring Diagram information, refer to BRC-92, "Wiring Diagram - VDC WITHOUT HILL DESCENT 1. CONNECTOR INSPECTION 1. Turn ignition switch OFF. 2. Disconnect ABS actuator and electric unit (control unit) connector. 3. Disconnect steering angle sensor connector. 4. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals. 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 terminals. Repair or replace connector. 2. CHECK STEERING ANGLE SENSOR HARNESS 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 (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 |