15-12

VSA DTC Troubleshooting: 11-12, 13-12, 15-12, 17-12

DTC 11-12:

Right-Front Wheel Speed Sensor Power Source Malfunction

DTC 13-12:

Left-Front Wheel Speed Sensor Power Source Malfunction

DTC 15-12:

Right-Rear Wheel Speed Sensor Power Source Malfunction

DTC 17-12:

Left-Rear Wheel Speed Sensor Power Source Malfunction

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).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0) and then back to ON (II).

4. Check for DTCs with the HDS.

Is DTC 11-12, 13-12, 15-12, or 17-12 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose terminals between the wheel speed sensor 2P connector and the VSA modulator-control unit 36P connector. Refer to intermittent failures troubleshooting.�

5. Turn the ignition switch to LOCK (0).

6. Disconnect the VSA modulator-control unit 36P connector Service and Repair.

7. Turn the ignition switch to ON (II).

8. Measure the voltage between body ground and the appropriate wheel speed sensor GND terminals of the VSA modulator-control unit 36P connector individually (see table).









Is there 0.1 V or more?

YES -

Go to step 9.

NO -

Go to step 13.

9. Turn the ignition switch to LOCK (0).

10. Disconnect the appropriate wheel speed sensor 2P connector Service and Repair.

11. Turn the ignition switch to ON (II).

12. Measure the voltage between body ground and the appropriate wheel speed sensor GND terminals of the VSA modulator-control unit 36P connector individually (see table).









Is there 0.1 V or more?

YES -

Repair a short to power in the wire between the VSA modulator-control unit and the appropriate wheel speed sensor.�

NO -

Replace the appropriate wheel speed sensor Service and Repair.�

13. Turn the ignition switch to LOCK (0).

14. Check for continuity between the appropriate VSA modulator-control unit 36P connector wheel speed sensor +B terminals (see table).










Is there continuity?

YES -

Repair short in the wires between the appropriate wheel speed sensor and the VSA modulator-control unit.�

NO -

Go to step 15.

15. Reconnect the VSA modulator-control unit 36P connector.

16. Update the VSA modulator-control unit if it does not have the latest software Testing and Inspection. If the unit already has the latest software, substitute a known-good VSA modulator-control unit Service and Repair.

17. Turn the ignition switch to LOCK (0) and then back to ON (II).

18. Check for DTCs with the HDS.

Is DTC 11-12, 13-12, 15-12, or 17-12 indicated?

YES -

Check for loose terminals in the VSA modulator-control unit 36P connector. If the VSA modulator-control unit was updated, substitute a known-good VSA modulator-control unit Service and Repair, then retest. If the VSA modulator-control unit was substituted, go to step 1.

NO -

If the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the original VSA modulator-control unit Service and Repair. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.�