554 Fuel pump relay control circuit failure
How to read it
Code 554 reads as 5 flashes, pause, 5 flashes, pause, 4 flashes on the check-engine light. Jumper the self-test input to signal return at the test connector, then run the key on engine off self test and the running self test, counting the check-engine flashes each time.
New to flash codes? The OBD-I code reading guide walks through the paperclip method, code 12, and reading two-digit codes.
What does Ford code 554 mean?
554. Fuel pump relay control circuit failure. This code sets when your vehicle computer detects fuel pump relay control circuit failure.
Common causes of 554
- Faulty fuel pump or fuel pump relay
- Open or shorted wiring in the fuel pump circuit
- Blown fuel pump fuse
- Faulty inertia switch
- Faulty PCM output
How to fix 554
- Confirm the code and listen for the fuel pump prime
- Check the fuel pump fuse and relay
- Inspect the fuel pump wiring and inertia switch
- Test the pump circuit for power and ground
- Replace the pump or relay only after the circuit test fails