Manufacturer Code Charts: 88

VSA DTC Troubleshooting: 88

DTC 88:

Difference in Wheel Speed

NOTE: A wheel bearing that is installed backwards can cause this DTC.

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, a known-good set of tires, or set the tires to the correct pressure, and retest by test-driving.�

2. Test-drive the vehicle at 9 mph (15 km/h) or more.

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

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

Are all four the same indicated value?

YES -

Go to step 4.

NO -

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

4. Check the magnetic encoders on the front wheel bearings Service and Repair and rear magnetic encoders on the hub bearing units Service and Repair.

Are they installed correctly and in good condition?

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 -

Replace the front wheel bearing(s) or the rear hub bearing unit(s), and recheck by test-driving:

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