Fuel Pump Control Circuit Performance
Fuel pump control circuit is not working correctly.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The fuel pump is not getting the right signals from the control circuit, which affects how it runs the engine.
What the computer is actually seeing
The control module detects that the fuel pump is not responding as expected in terms of voltage or activation status.
What a healthy reading looks like
Fuel pump should receive 12V when activated and operate continuously until a cutoff signal or vehicle shutdown occurs.
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. Inspect wiring and connectors for damage, corrosion, or disconnection (should have continuity, no shorts).
- 22. Check the fuel pump relay operation (should click and provide power when energized).
- 33. Measure voltage at the fuel pump connector during operation (should read 12V).
- 44. Test the fuel pump by applying direct voltage (if it runs, pump is good).
- 55. If all above checks OK, test the control module or scan for other related codes.
Common causes
- Corroded wiring or connectors in the fuel pump circuit
- Faulty fuel pump
- Defective fuel pump relay
- Bad control module
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not advisable; you may experience intermittent stalling or no-start, affecting safety.
Will this code come back after clearing?
If the underlying issue is not fixed, the code will likely return.
Why does this code appear with other codes?
It's common for multiple fuel system codes to trigger together due to related circuit or component failures.
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