VSA System

VSA DTC Troubleshooting: 53-1

DTC 53:

Motor Stuck

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Reading and Clearing Diagnostic Trouble Codes.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

Is the pump motor running?

YES -

Replace the VSA modulator-control unit Service and Repair.

NO -

Go to step 2.

2. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

3. Disconnect the VSA modulator-control unit 46P connector.

4. Check for continuity between VSA modulator-control unit 46P connector terminal No. 46 and body ground.





Is there continuity?

YES -

Go to step 5.

NO -

Repair an open in the wire between the VSA modulator-control unit and body ground (G302).

5. Reconnect the VSA modulator-control unit 46P connector.

6. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

7. Clear the DTC with the HDS.

8. Test-drive the vehicle at 9 mph (15 km/h) or more, with the engine speed at 2,500 rpm or more.

NOTE: Drive the vehicle on the road, not on a lift.

9. Check for DTCs with the HDS.

Is DTC 53 indicated?

YES -

Go to step 10.

NO -

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

10. Update the VSA modulator-control unit if it does not have the latest software Testing and Inspection.

11. Test-drive the vehicle at 9 mph (15 km/h) or more, with the engine speed at 2,500 rpm or more.

NOTE: Drive the vehicle on the road, not on a lift.

12. Check for DTCs with the HDS.

Is DTC 53 indicated?

YES -

Check for loose terminals in the VSA modulator-control unit 46P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit Service and Repair.

NO -

If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.