Diagnostic Procedure

VSA activation indicator does not go off, and no DTCs are stored

Diagnostic Procedure:

1. Do the steering angle sensor center point writing. Testing and Inspection

2. Symptom troubleshooting. Symptom Troubleshooting

3. Substitute a known-good VSA modulator-control unit, then retest. If it is OK, replace the original VSA modulator-control unit. Service and Repair