DTC 4-4 Wheel Sensor, Right Rear

DIAGNOSTIC PERIOD
During individual and regular diagnosis.

DESCRIPTION OF DIAGNOSIS
The Anti-lock Brake System (ABS) indicator light is turned on when the wheel sensor signal is missing at speeds of 6 mph (10 km/h) or more. This diagnosis is not performed when the parking brake switch is ON.

PROBABLE CAUSE
- Open circuit, internal short or short to body ground in the wheel seasor
- Open circuit or short to body ground in the positive (+) wire between the wheel sensor and ABS control unit
- Open circuit or short to body ground in the negative (-) wire between the wheel sensor and ABS control unit
- Positive (+) wire shorted to the negative (-) wire between the wheel sensor and ABS control unit
- Loose connector or poor contact of terminals
- Improper wheel sensor air gap
- Faulty ABS control unit
- Missing pulser
- Modulator does not decrease pressure properly

PROBABLE CAUSE WHEN SYMPTOM DOES NOT REAPPEAR
- Intermittent interruption in the wheel sensor
- Wheel spin of both front wheels (only for DTC 4-8) - (No problem)
- The transmission downshifted excessively (only for DTC 4-1 and 4-2) - (No problem)

Refer to Diagnostic Charts. DTC 4-1