C0101
Rear ABS Wheel Speed Sensor Right
C0101 is an OBD-II diagnostic trouble code meaning: Rear ABS Wheel Speed Sensor Right. Common causes: broken or damaged sensor wiring harness, malfunction of the wheel speed sensor itself. Estimated repair cost: $56–167.
Symptoms
- The ABS indicator on the dashboard is on
- ABS does not activate when braking
- Loss of ESP function (if related to ABS)
Causes
- Broken or damaged sensor wiring harness
- Malfunction of the wheel speed sensor itself
- Contamination or damage to the gear on the hub
- Poor contact in the sensor connector
How to Fix
- Check the integrity of the sensor wiring harness
- Clean and inspect the sensor connector
- Check sensor resistance (compare with specifications)
- Inspect the gear on the hub for damage
- If necessary, replace the wheel speed sensor
Related codes
Error C0101 by Vehicle Brand
FAQ
What does the C0101 code mean?
C0101 is an OBD-II diagnostic trouble code that indicates: Rear ABS Wheel Speed Sensor Right
What causes a C0101 error code?
The most common causes of C0101 include: Broken or damaged sensor wiring harness; Malfunction of the wheel speed sensor itself; Contamination or damage to the gear on the hub; Poor contact in the sensor connector.
How do I fix a C0101 diagnostic trouble code?
To fix C0101: Check the integrity of the sensor wiring harness. Clean and inspect the sensor connector. Check sensor resistance (compare with specifications). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0101?
Limited driving only, diagnose soon
How much does it cost to fix C0101?
The estimated repair cost for C0101 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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