Faulty Wheel Speed Sensor Input
- Trouble code will set if ECU detects wheel speed sensor has no input signal. Trouble code will also set if wheel sensor voltage output is low while driving vehicle.
- Inspect wheel sensor wiring harness for open or poor connection. See WIRING DIAGRAM . Repair or replace if necessary. If no open circuit or poor connection is found, go to next step.
- Test wheel speed sensor. See WHEEL SPEED SENSOR under COMPONENT TESTING . Replace speed sensor as necessary. Ensure wheel speed sensor-to-rotor gap is within specification. See WHEEL SPEED SENSOR under ADJUSTMENTS .