DTC 54
DTC 54: Fail-safe Relay1. Clear the DTC using the HDS.
2. Disconnect the HDS from the 16P DLC.
3. Turn the ignition switch OFF, then turn it ON (II) again.
4. Test-drive the vehicle around a number of corners, and leave the ignition switch ON (II).
Does the VSA indicator come on and is; DTC 54 stored?
YES - Go to step 5.
NO - The system is OK at this time. Refer to intermittent failures.
5. Measure the voltage between the VSA modulator-control unit 47P connector terminal No. 47 and body ground.
Is there 0.1 V or less?
YES - Go to step 6.
NO - Repair open or high resistance in, the wire between the VSA modulator-control unit and body ground (G202).
6. Clear the DTC using the HDS.
7. Turn the ignition switch OFF, then turn it ON (II) again.
8. Test-drive the vehicle.
Does the ABS indicator come on, and is DTC 54 indicated?
YES - Check for loose terminals or poor connections at the VSA modulator-control unit 47P connector. If connections are good, replace the VSA modulator-control unit, and recheck.
NO - The system is OK at this time. Refer to intermittent failures.