VSA System

Control System DTCs

VSA DTC Troubleshooting: 12-11, 14-11, 16-11, 18-11

DTC 12-11 : Right-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption
DTC 14-11 : Left-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption
DTC 16-11 : Right-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption
DTC 18-11 : Left-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption

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.
* These DTCs may be caused by electrical interference. Check for aftermarket devices installed in the vehicle when these DTCs are indicated.

1. DTC check:

DTC check
-1. Turn the ignition switch to ON (II).

-2. Clear the DTC with the HDS.

-3. Turn the ignition switch to LOCK (0).

-4. Test-drive the vehicle.
NOTE: Drive the vehicle on the road, not on a lift.

-5. Check for DTCs with the HDS.

Is DTC 12-11, 14-11, 16-11, or 18-11 indicated?
-YES- If DTC 12-11, 14-11, 16-11, or 18-11 are only indicated, go to step 2.
-YES- If DTC 12-12, 14-12, 16-12, or 18-12 are also indicated, go to DTC 12-12, 14-12, 16-12, or 18-12 VSA System.
-NO- Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

2. Wheel speed sensor installation check:

Wheel speed sensor installation check
-1. Turn the ignition switch to LOCK (0).

-2. Check that the appropriate front wheel speed sensor Front Wheel Speed Sensor Removal and Installation or rear wheel speed sensor Rear Wheel Speed Sensor Removal and Installation is properly mounted.





Is the wheel speed sensor installation OK?
-YES- Go to step 3.
-NO- Reinstall the front wheel speed sensor Front Wheel Speed Sensor Removal and Installation or rear wheel speed sensor Rear Wheel Speed Sensor Removal and Installation, and recheck the mounting position.

3. VSA modulator-control unit check (update):

VSA modulator-control unit check (update)
-1. Update the VSA modulator-control unit if it does not have the latest software Programming and Relearning.

-2. Turn the ignition switch to LOCK (0).

-3. Test-drive the vehicle.
NOTE: Drive the vehicle on the road, not on a lift.

-4. Check for DTCs with the HDS.

Is DTC 12-11, 14-11, 16-11, or 18-11 indicated?
-YES- Check for loose terminals in the VSA modulator-control unit 22P 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- Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.