FUEL INJECTION CONTROL MODULE (FICM) VOLTAGE HIGH
The FICM voltage is out of expected range, indicating a potential issue with the electrical system.
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What it means (plain English)
The Fuel Injection Control Module (FICM) is getting more voltage than it should, which can cause it to not work right and affect how the engine runs.
What the computer is actually seeing
The FICM is designed to operate within 5 to 15 volts. When it detects voltages outside this range, it throws a fault code to alert you.
What a healthy reading looks like
FICM should see around 12 volts with engine running, not exceeding 15 volts.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check battery voltage with the engine running; it should be between 13.5 to 14.5 volts. If low, recharge or replace the battery.
- 22. Inspect FICM connectors and wiring for damage, corrosion, or loose connections; repair as necessary.
- 33. Measure FICM output voltage with a multimeter; it should be within 5 to 15 volts. If above 15 volts, check for short circuits in wiring.
- 44. If all wiring is good, consider testing or replacing the FICM if it continues to show high voltage readings.
Common causes
- Faulty FICM
- Bad wiring or connectors
- Weak battery
- Alternator problems
- Short circuit in wiring
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It may be drivable but can lead to performance issues or engine failure; fix soon to prevent damage.
Will the code come back after clearing it?
If the underlying issue isn't fixed, yes, the code will return.
Does this code relate to poor fuel economy?
Yes, an issue with the FICM can impact fuel delivery and efficiency.
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