P2C31
Ignition Coil Primary Circuit Fuse B
P2C31 is an OBD-II diagnostic trouble code meaning: Ignition Coil Primary Circuit Fuse B. Common causes: blown coil primary fuse, short circuit in the primary circuit. Estimated repair cost: $2–56.
Symptoms
- Misfire in one of the cylinders
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Check Engine light comes on
Causes
- Blown coil primary fuse
- Short circuit in the primary circuit
- Ignition coil malfunction
- Damaged wiring or poor contact
- Ignition coil relay problems
How to Fix
- Check the condition of the primary circuit fuse of coil B
- Inspect the ignition coil wiring and connectors
- Check the resistance of the primary winding of the coil
- Replace a faulty fuse or ignition coil
- Check the operation of the ignition coil relay
Related codes
Error P2C31 by Vehicle Brand
FAQ
What does the P2C31 code mean?
P2C31 is an OBD-II diagnostic trouble code that indicates: Ignition Coil Primary Circuit Fuse B
What causes a P2C31 error code?
The most common causes of P2C31 include: Blown coil primary fuse; Short circuit in the primary circuit; Ignition coil malfunction; Damaged wiring or poor contact.
How do I fix a P2C31 diagnostic trouble code?
To fix P2C31: Check the condition of the primary circuit fuse of coil B. Inspect the ignition coil wiring and connectors. Check the resistance of the primary winding of the coil. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2C31?
Limited driving only, diagnose soon
How much does it cost to fix P2C31?
The estimated repair cost for P2C31 is $2–56. Actual cost depends on your vehicle, location, and labor rates.
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