DTC 54

DTC 54: Fail-safe Relay
1. Turn the ignition switch ON (II).
2. Clear the DTC using the HDS.
3. Turn the ignition switch OFF, then disconnect the HDS.
4. Test-drive the vehicle.
Does the ABS indicator come on, and 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.