P0627 — Fuel Pump A Control Circuit Open
| Meaning | The engine computer has detected an open circuit in the control loop for the fuel pump. This means the electrical signal from the computer is not reaching the fuel pump relay or the pump itself as expected, interrupting the power supply. |
| Family | Powertrain (P) |
Typical symptoms
The engine stalls unexpectedly while driving
The check engine light is illuminated on the dashboard
Common causes
Damaged, corroded, or loose wiring in the fuel pump control circuit
Internal failure of the electric fuel pump itself
Faulty engine control module
What to do
Frequently asked questions
What does code P0627 mean?
Fuel Pump A Control Circuit Open. The engine computer has detected an open circuit in the control loop for the fuel pump. This means the electrical signal from the computer is not reaching the fuel pump relay or the pump itself as expected, interrupting the power supply.
Can I keep driving with code P0627 active?
With caution: limp mode possible, have it checked soon
Common causes — P0627
Blown fuel pump fuse or faulty relay Damaged, corroded, or loose wiring in the fuel pump control circuit Internal failure of the electric fuel pump itself Faulty engine control module
How do you fix code P0627?
You should check the fuses and the fuel pump relay first, as these are the most common and easiest points of failure. Have a technician inspect the wiring and power supply to the pump promptly, especially if the car is currently failing to start.
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