Diagnostic Procedure

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

Diagnostic Procedure:

1. Symptom troubleshooting. Symptom Troubleshooting

2. Update the VSA modulator-control unit if it does not have the latest software, Testing and Inspection or substitute a known-good VSA modulator-control unit, Service and Repair then retest. If it is OK, the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the original VSA modulator-control unit. Service and Repair