C0310
Motor A/B Circuit Open
C0310 is an OBD-II diagnostic trouble code meaning: Motor A/B Circuit Open. Common causes: open or short circuit in wiring harness, faulty power relay. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Disabling the stabilization system or ABS
- Unusual noises from the problem unit
Causes
- Open or short circuit in wiring harness
- Faulty power relay
- Damaged connectors
- Motor fault
- Problems with the control unit
How to Fix
- Check the integrity of the wiring harness to the electric motor
- Check fuses and power relays
- Diagnose the resistance of motor windings
- Check the output signals of the control unit
- If necessary, replace the faulty component
Related codes
Error C0310 by Vehicle Brand
FAQ
What does the C0310 code mean?
C0310 is an OBD-II diagnostic trouble code that indicates: Motor A/B Circuit Open
What causes a C0310 error code?
The most common causes of C0310 include: Open or short circuit in wiring harness; Faulty power relay; Damaged connectors; Motor fault.
How do I fix a C0310 diagnostic trouble code?
To fix C0310: Check the integrity of the wiring harness to the electric motor. Check fuses and power relays. Diagnose the resistance of motor windings. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0310?
Limited driving only, diagnose soon
How much does it cost to fix C0310?
The estimated repair cost for C0310 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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