P031A
Generic code
Free on OBD DashX
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See which problems come with P031A, how often it shows up in other vehicles, and how to fix it — step by step.
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What P031A means
- Ignition C Control Signal Circuit/Open
Possible symptoms
- Check and replace any damaged or worn ignition control module or ignition coil.
- Inspect and repair any loose or corroded electrical connections in the ignition control circuit.
- Verify and fix any damaged or faulty wiring or harness in the ignition control signal circuit.
- Test and replace the engine control module (ECM) if all other possible causes have been ruled out.
Possible causes
- Faulty ignition coil
- Malfunctioning ignition control module
- Damaged or loose ignition control circuit wiring
- Defective ignition control module power relay
- Faulty ignition control module ground connection
Possible solutions
- Engine misfires or runs rough
- Poor fuel efficiency
- Difficulty starting the engine
- Engine stalls or shuts off unexpectedly
- Decreased engine performance or power
Free on OBD DashX
P031A on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
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