P038B
Ignition I Control Signal Circuit Low
P038B is an OBD-II diagnostic trouble code meaning: Ignition I Control Signal Circuit Low. Common causes: open or short circuit in wiring harness, poor connection in the ignition system connectors. Estimated repair cost: $56–167.
Symptoms
- Poor engine starting
- Misfires
- Reduced engine power
- Increased fuel consumption
Causes
- Open or short circuit in wiring harness
- Poor connection in the ignition system connectors
- ECU malfunction
- Problems with ignition-related sensors
How to Fix
- Check wiring harness for damage
- Check the connections in the ignition system connectors
- Check the voltage in the ignition control circuit
- If necessary, replace faulty components
Related codes
Error P038B by Vehicle Brand
FAQ
What does the P038B code mean?
P038B is an OBD-II diagnostic trouble code that indicates: Ignition I Control Signal Circuit Low
What causes a P038B error code?
The most common causes of P038B include: Open or short circuit in wiring harness; Poor connection in the ignition system connectors; ECU malfunction; Problems with ignition-related sensors.
How do I fix a P038B diagnostic trouble code?
To fix P038B: Check wiring harness for damage. Check the connections in the ignition system connectors. Check the voltage in the ignition control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P038B?
Limited driving only, diagnose soon
How much does it cost to fix P038B?
The estimated repair cost for P038B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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