DTC 54

DTC 54: Fail-safe Relay

1. Turn the ignition switch OFF.
2. Disconnect the VSA modulator-control unit 47P connector.
3. Check for continuity between VSA modulator-control unit 47P connector terminal No. 47 and body ground.





Is there continuity?

YES - Go to step 4.

NO - Repair open in the wire between the VSA modulator-control unit and body ground (G203).

4. Reconnect the VSA modulator-control unit 47P connector.
5. Clear the DTC using the HDS.
6. Turn the ignition switch OFF.
7. Disconnect the HDS from the 16P DLC.
8. Test-drive the vehicle.

Does the ABS indicator come on, and is DTC 54 indicated?

YES - Replace the VSA modulator-control unit.

NO - The system is OK at this time. Refer to intermittent failures.