P038A
Ignition I Control Signal Circuit/Open
P038A is an OBD-II diagnostic trouble code meaning: Ignition I Control Signal Circuit/Open. Common causes: broken or damaged wiring harness, ignition coil malfunction. Estimated repair cost: $33–167.
Symptoms
- Misfires
- Unstable idle
- Reduced engine power
- Difficulty starting the engine
Causes
- Broken or damaged wiring harness
- Ignition coil malfunction
- Poor contact in connectors
- Malfunction of the control module (ECU)
How to Fix
- Check the integrity of the ignition control circuit
- Inspect connectors and contacts for oxidation or damage
- Test the ignition coil for functionality
- Check the ignition control signal using an oscilloscope
- Replace faulty components (coil, wiring, ECU if necessary)
Related codes
Error P038A by Vehicle Brand
FAQ
What does the P038A code mean?
P038A is an OBD-II diagnostic trouble code that indicates: Ignition I Control Signal Circuit/Open
What causes a P038A error code?
The most common causes of P038A include: Broken or damaged wiring harness; Ignition coil malfunction; Poor contact in connectors; Malfunction of the control module (ECU).
How do I fix a P038A diagnostic trouble code?
To fix P038A: Check the integrity of the ignition control circuit. Inspect connectors and contacts for oxidation or damage. Test the ignition coil for functionality. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P038A?
Limited driving only, diagnose soon
How much does it cost to fix P038A?
The estimated repair cost for P038A is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat