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STC-54 < COMPONENT DIAGNOSIS > [WITH 4WAS] C1628 4WAS FRONT ACTUATOR 1. Start the engine. CAUTION: Stop the vehicle. 2. Steer to the straight-ahead position. Then turn the ignition switch OFF. 3. Disconnect 4WAS front actuator harness connector. 4. Apply 12 V current between 4WAS front actuator harness connector No. 10 terminal (positive) and NO. 3 CAUTION: • Never make the terminals short. 5. Slowly steer rightward and leftward alternately. Check the resistance between 4WAS front actuator har- CAUTION: The steering angle must be within 10 ° rightward and leftward. 6. Connect 4WAS front actuator harness connector. Is the inspection result normal? YES >> INSPECTION END NO >> Replace 4WAS front actuator. Refer to ST-21, "WITH 4WAS : Exploded View" Special Repair Requirement INFOID:0000000000958757 AFTER REPLACING 4WAS FRONT ACTUATOR • Perform 4WAS front actuator adjustment after replacing 4WAS front actuator. Refer to FRONT ACTUATOR NEUTRAL POSITION ADJUSTMENT : Special Repair Requirement (Pattern 2)" BEFORE REPLACING 4WAS FRONT CONTROL UNIT • Record the self-diagnosis results (history). CAUTION: • Replace it without erasing the memory (history) of self-diagnosis results when replacing 4WAS front 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 4WAS FRONT CONTROL UNIT • Perform 4WAS front actuator adjustment after replacing 4WAS front control unit. Refer to FRONT ACTUATOR NEUTRAL POSITION ADJUSTMENT : Special Repair Requirement (Pattern 3)" 4WAS front actuator Resistance (Ap- prox.) Connector Terminal Connector Terminal M351 2 M351 7 1 k – 100 k Ω 4 7 8 7 |