12-21

VSA DTC Troubleshooting: 12-21, 14-21, 16-21, 18-21

DTC 12-21:

Right-Front Wheel Speed Sensor Installation Error

DTC 14-21:

Left-Front Wheel Speed Sensor Installation Error

DTC 16-21:

Right-Rear Wheel Speed Sensor Installation Error

DTC 18-21:

Left-Rear Wheel Speed Sensor Installation Error

1. Test-drive the vehicle in a straight line at 6 mph(10 km/h) or more.

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

2. Check the RIGHT FRONT, LEFT FRONT, RIGHT REAR, LEFT REAR WHEEL SPEED in the VSA DATA LIST with the HDS.

Are all four values the same?

YES -

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 Reading and Clearing Diagnostic Trouble Codes.�

NO -

Go to step 3 12-21.

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

4. Check that the appropriate wheel speed sensor is properly mounted Service and Repair.





Is the wheel speed sensor installation OK?

YES -

Replace the appropriate wheel speed sensor Service and Repair.�

NO -

Reinstall the wheel speed sensor, and check the mounting position Service and Repair, then go to step 1 12-21.