Wheel Speed Mismatch

NAME OF CODE:
Wheel Speed Mismatch

SET CONDITION:
The following criteria must be met for this code to be detected.

1 .When compared to the other wheels, one wheel speed is + 20% different.

OR
2. Three wheel speeds differing from each other by more than 12% and
3. Vehicle speed greater than 20 km/h (12 mph).
4. No evidence of drivetrain spin up in the last 5 seconds.
5. Open sensor DTC not present.
6. ABS system not inhibited.
7. ABS system not in active control mode.
8. Criteria 1 through 7 satisfied for 24 consecutive checks spaced 0.5 seconds apart.

POSSIBLE CAUSES:
- Anything that generates consistent difference(s) in apparent wheel speed
- Three significantly different tires installed on the vehicle
- Wrong number of tone wheel teeth