Operation CHARM: Car repair manuals for everyone.

DTC 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.

Are all four the same indicated value?

YES - Go to step 3.

NO - Reinstall or replace the wheel sensor(s), and recheck by test-driving.

3. Check the all magnetic encoders on the front wheel bearings or magnetic encoders on the rear hub bearing units.

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 and retest.

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(s).
- Rear: Replace the rear hub bearing unit(s).