Front Wheel Speed Sensor (WSS): Inspection
- Inspect tone wheel on front axle shaft for missing teeth, broken teeth or looseness on mounting surface. Ensure tone wheel has not contacted front WSS. Replace components if damaged.
- Using dial indicator, check tone wheel runout. It may be necessary to replace front axle shaft components if tone wheel runout exceeds .010" (.25 mm).
CAUTION:
Proper installation of front wheel speed sensor wiring harness is critical to provide proper ABS operation. Ensure wiring harness is properly installed in all retainers to prevent contact with moving parts and/or over-extension, resulting in open circuit.