VSA System Symptom Troubleshooting Index
When the vehicle has one of these symptoms, check for VSA diagnostic trouble codes (DTCs) with the HDS. If there are no DTCs, do the diagnostic procedure for the symptom, in the sequence listed, until you find the cause.
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| HDS does not communicate with the VSA modulator-control unit or the vehicle | Troubleshoot the DLC circuit . | Power and ground at the VSA modulator-control unit. |
| ABS indicator, brake system indicator (red), VSA indicator, brake system indicator (amber), or VSA OFF indicator does not come on at start-up (bulb check) | Do the gauge control module self-diagnostic function . | |
| VSA OFF indicator does not go off | ||
| ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off | Symptom troubleshooting . | |
| VSA cannot be turned OFF |