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STC-118 < COMPONENT DIAGNOSIS > [WITH 4WAS] C1923 STEERING ANGLE SEN YES >> Check that there is no malfunction in each harness connector pin terminal or disconnection. NO >> Replace 4WAS main control unit. Refer to Special Repair Requirement INFOID:0000000000958879 BEFORE REPLACING 4WAS MAIN CONTROL UNIT • Record the self-diagnosis results (history). CAUTION: • Replace it without erasing the memory (history) of self-diagnosis results when replacing 4WAS main control unit after diagnosis. • Erase the memory of the self-diagnosis results (record) after printing out or recording all the val- ues of “DATA MONITOR” when erasing the memory of the self-diagnosis results (record). AFTER REPLACING STEERING ANGLE SENSOR 1. PERFORM ACTIVE TEST (LOCK OPERATION) With CONSULT-III 1. Stop vehicle with front wheels in the straight-ahead position. 2. Turn the ignition switch ON. CAUTION: Never start engine. 3. Select “LOCK OPERATION” item on “ACTIVE” of 4WAS front control unit. 4. Perform “RELEASE” of “ACTIVE TEST”. CAUTION: • Turn steering wheel 90 ° , and then check that front tire does not move. • Never turn steering wheel 1 turn or more while performing “RELEASE”. 5. Place steering wheel in neutral position. 6. Perform “LOCK” item on “ACTIVE TEST” of 4WAS front control unit. 7. Steer to 30 ° leftward slowly. Steer to 30 ° rightward and return the steering wheel to the straight-ahead position. 8. Complete active test of 4WAS front control unit. >> GO TO 2. 2. STEERING ANGLE SENSOR NEUTRA POSITION ADJUSTMENT With CONSULT-III 1. Adjust steering angle sensor neutral position. Refer to BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement" . 2. Turn the ignition switch OFF. >> GO TO 3. 3. RETURN TO 4WAS FRONT ACTUATOR INITIAL POSITION 1. Start engine. CAUTION: Check that condition with the vehicle stopped. 2. Turn steering wheel to the left by 90 ° slowly, and then turn to the right by 90 ° . 3. Again, turn steering wheel to the left by 90 ° slowly, and then turn to the right by 90 ° so that it faces straight ahead. 4. Stop vehicle with front wheels in the straight-ahead position after driving vehicle for a short time. (Engine >> GO TO 4. 4. CHECK 4WAS FRONT ACTUATOR With CONSULT-III 1. Check “ 4WAS STR ANG” item on “DATA MONITOR” of 4WAS front control unit. CAUTION: Never touch steering wheel while performing. |