Manufacturer Code Charts: 88

VSA DTC Troubleshooting: 88

DTC 88:

Difference in Wheel Speed

1. Check all four tires.

Are all four tires the correct size and properly inflated?

YES -

Go to step 2.

NO -

Install the correct tires, or set the tires to the correct pressure, and retest by test-driving.�

2. Check the RF, LF, RR, and LR WHEEL SPD in the VSA DATA LIST with the HDS.

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

Are all four the same indicated value?

YES -

Go to step 3.

NO -

Reinstall or replace the wheel speed sensor(s) Service and Repair, and recheck by test-driving.�

3. Inspect the appropriate magnetic encoder for damage, debris, and correct installation.





Is the magnetic encoder OK?

YES -

Check for loose terminals in the VSA modulator-control unit 46P connector. If necessary, 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 -

Remove the debris from the magnetic encoder, or replace the wheel bearing (front) or the hub bearing unit (rear):�

- Front: Replace the front wheel bearing Service and Repair.
- Rear: Replace the rear hub bearing unit Service and Repair.