VSA System

DTC 54: Fail-safe Relay

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then disconnect the HDS.
4. Test-drive the vehicle.
5. Check for DTCs with the HDS.

Is DTC 54 indicated?

YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.

NO - intermittent failure; the vehicle is OK at this time.