VSA System

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 at 7 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 37P connector. Refer to intermittent failures troubleshooting.�

NO -

Go to step 3.

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

4. Check that the appropriate wheel speed sensor is properly mounted Wheel Speed Sensor Replacement (With VSA).





Is the wheel speed sensor installation OK?

YES -

Replace the appropriate wheel speed sensor Wheel Speed Sensor Replacement (With VSA).�

NO -

Reinstall the wheel speed sensor, and check the mounting position Wheel Speed Sensor Replacement (With VSA).�