FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

DTC 51

DTC 51: Motor Lock

DTC 52: Motor Stuck OFF

1. Turn the ignition switch OFF.
2. Check the No. 17 (30 A) fuse in the under-hood fuse/relay box.

Is the fuse OK?

YES - Reinstall the fuse, and go to step 2.

NO - Replace the fuse, and recheck.

3. Disconnect the VSA modulator-control unit 47P connector.
4. Measure the voltage between VSA modulator-control unit 47P connector terminal No. 16 and body ground.





Is there battery voltage?

YES - Go to step 5.

NO - Repair open in the wire between the No. 17 (30 A) fuse and the VSA modulator-control unit.

5. Check for continuity between VSA modulator-control unit 47P connector terminal No. 47 and body ground.





Is there continuity?

YES - Go to step 6.

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

6. Clear the DTC using the HDS.
7. Turn the ignition switch OFF.
8. Disconnect the HDS from the 16P DLC.
9. Test-drive the vehicle at 10 mph (15 km/h) or more.

Does the ABS indicator come on, and is DTC 51 or 52 indicated?

YES - Replace the VSA modulator-control unit.

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