C0031
Left Front Wheel Speed Sensor
C0031 is an OBD-II diagnostic trouble code meaning: Left Front Wheel Speed Sensor. Common causes: wheel speed sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- Disabling the ABS system
- Disabling the ESP system
- Incorrect operation of cruise control
- Errors in other systems that depend on speed data
Causes
- Wheel speed sensor malfunction
- Open or short circuit in wiring harness
- Oxidation or damage to connectors
- Damage to the magnetic ring in the wheel bearing
- Mechanical damage to the sensor (contamination, shock)
How to Fix
- Diagnostics with a scanner to confirm the code
- Visual inspection of the sensor and wiring
- Checking the sensor resistance (comparison with specifications)
- Checking voltage and continuity
- Clean or replace the sensor if necessary
- Replacing the wheel bearing if the magnetic ring is damaged
- Reset errors and check
Related codes
Error C0031 by Vehicle Brand
FAQ
What does the C0031 code mean?
C0031 is an OBD-II diagnostic trouble code that indicates: Left Front Wheel Speed Sensor
What causes a C0031 error code?
The most common causes of C0031 include: Wheel speed sensor malfunction; Open or short circuit in wiring harness; Oxidation or damage to connectors; Damage to the magnetic ring in the wheel bearing.
How do I fix a C0031 diagnostic trouble code?
To fix C0031: Diagnostics with a scanner to confirm the code. Visual inspection of the sensor and wiring. Checking the sensor resistance (comparison with specifications). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0031?
Limited driving only, diagnose soon
How much does it cost to fix C0031?
The estimated repair cost for C0031 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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