P03FE
Ignition L Control Signal Circuit Low
P03FE is an OBD-II diagnostic trouble code meaning: Ignition L Control Signal Circuit Low. Common causes: ignition coil malfunction, wiring harness damage. Estimated repair cost: $56–222.
Symptoms
- Misfires
- Reduced engine power
- Increased fuel consumption
- Unstable idle
- Check Engine light comes on
Causes
- Ignition coil malfunction
- Wiring harness damage
- Poor connections or corroded contacts
- Engine control module (ECU) malfunction
- Open or shorted signal circuit
How to Fix
- Check the condition of the ignition coil
- Inspect the wiring harness for damage
- Check connections and contacts for corrosion
- Check the signal using an oscilloscope
- Replace faulty components (coil, wiring harness, ECU)
Related codes
Error P03FE by Vehicle Brand
FAQ
What does the P03FE code mean?
P03FE is an OBD-II diagnostic trouble code that indicates: Ignition L Control Signal Circuit Low
What causes a P03FE error code?
The most common causes of P03FE include: Ignition coil malfunction; Wiring harness damage; Poor connections or corroded contacts; Engine control module (ECU) malfunction.
How do I fix a P03FE diagnostic trouble code?
To fix P03FE: Check the condition of the ignition coil. Inspect the wiring harness for damage. Check connections and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P03FE?
Limited driving only, diagnose soon
How much does it cost to fix P03FE?
The estimated repair cost for P03FE is $56–222. Actual cost depends on your vehicle, location, and labor rates.
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