C003A
Right Rear Wheel Speed Sensor
C003A is an OBD-II diagnostic trouble code meaning: Right Rear Wheel Speed Sensor. Common causes: speed sensor damage, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- Incorrect operation of the ABS/ESP system
- Loss of speed on the speedometer
- Activating emergency mode
Causes
- Speed sensor damage
- Open or shorted wiring harness
- Sensor contamination
- Problems with the ring gear on the hub
- Malfunction of the ABS/ESP control unit
How to Fix
- Check the visual condition of the sensor and wiring harness
- Clean the sensor from dirt
- Check the sensor resistance (usually 800-2000 Ohm)
- Check for signal from the sensor when the wheel rotates
- If necessary, replace the sensor or repair the wiring harness
Related codes
Error C003A by Vehicle Brand
FAQ
What does the C003A code mean?
C003A is an OBD-II diagnostic trouble code that indicates: Right Rear Wheel Speed Sensor
What causes a C003A error code?
The most common causes of C003A include: Speed sensor damage; Open or shorted wiring harness; Sensor contamination; Problems with the ring gear on the hub.
How do I fix a C003A diagnostic trouble code?
To fix C003A: Check the visual condition of the sensor and wiring harness. Clean the sensor from dirt. Check the sensor resistance (usually 800-2000 Ohm). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C003A?
Limited driving only, diagnose soon
How much does it cost to fix C003A?
The estimated repair cost for C003A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat