P03FC
Ignition K Control Signal Circuit High
P03FC is an OBD-II diagnostic trouble code meaning: Ignition K Control Signal Circuit High. Common causes: faulty ignition coil k, open or short circuit in wiring harness. Estimated repair cost: $22–111.
Symptoms
- Misfires
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Faulty ignition coil K
- Open or short circuit in wiring harness
- Poor contact in the ignition coil connector
- Engine control unit (ECU) malfunction
- Corrosion or oxidation of contacts
How to Fix
- Check the condition of the ignition coil K
- Check the wiring harness for breaks or damage
- Clean the contacts in the ignition coil connector
- Check voltage and resistance in control circuit
- Replace the faulty coil or wiring harness
- If necessary, replace the engine control unit
Related codes
Error P03FC by Vehicle Brand
FAQ
What does the P03FC code mean?
P03FC is an OBD-II diagnostic trouble code that indicates: Ignition K Control Signal Circuit High
What causes a P03FC error code?
The most common causes of P03FC include: Faulty ignition coil K; Open or short circuit in wiring harness; Poor contact in the ignition coil connector; Engine control unit (ECU) malfunction.
How do I fix a P03FC diagnostic trouble code?
To fix P03FC: Check the condition of the ignition coil K. Check the wiring harness for breaks or damage. Clean the contacts in the ignition coil connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P03FC?
Limited driving only, diagnose soon
How much does it cost to fix P03FC?
The estimated repair cost for P03FC is $22–111. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat