EPS Symptom Troubleshooting Index
When the vehicle has one of these symptoms, check for a diagnostic trouble code (DTC) with the HDS. If there is no DTC, 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 EPS control unit or the vehicle | Troubleshoot the F-CAN circuit . | Faulty data link cable |
| EPS indicator does not come on | Do the gauge control module self-diagnostic function . | |
| EPS indicator does not go off | Symptom Troubleshooting |