C0102
Rear ABS Wheel Speed Sensor Left
C0102 is an OBD-II diagnostic trouble code meaning: Rear ABS Wheel Speed Sensor Left. Common causes: open or shorted sensor wiring harness, damage to the wheel speed sensor. Estimated repair cost: $56–167.
Symptoms
- The ABS indicator on the instrument panel is on
- ABS system does not work when braking
- Incorrect operation of the ESP system (if installed)
Causes
- Open or shorted sensor wiring harness
- Damage to the wheel speed sensor
- Contamination or damage to the gear rotor
- ABS control unit malfunction
How to Fix
- Check the integrity of the sensor wiring harness
- Clean or replace wheel speed sensor
- Check the condition of the gear rotor
- Diagnose the ABS control unit
Related codes
Error C0102 by Vehicle Brand
FAQ
What does the C0102 code mean?
C0102 is an OBD-II diagnostic trouble code that indicates: Rear ABS Wheel Speed Sensor Left
What causes a C0102 error code?
The most common causes of C0102 include: Open or shorted sensor wiring harness; Damage to the wheel speed sensor; Contamination or damage to the gear rotor; ABS control unit malfunction.
How do I fix a C0102 diagnostic trouble code?
To fix C0102: Check the integrity of the sensor wiring harness. Clean or replace wheel speed sensor. Check the condition of the gear rotor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0102?
Limited driving only, diagnose soon
How much does it cost to fix C0102?
The estimated repair cost for C0102 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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