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FuelSeverity High: diagnose before driving on

P0627Fuel Pump "A" Control Circuit/Open

What it means

The ECU sees an open circuit in the fuel pump control (relay or pump module).

Symptoms

  • No start
  • Stalling

Common causes

  • Faulty pump relay or module
  • Open wiring
  • Blown fuse

What to check first

  1. Check fuse and relay
  2. Check the pump module supply and control
  3. Listen for the pump at key-on
Can I drive with P0627? Not recommended. P0627 can lead to stalling, limp mode or engine damage; diagnose it before driving further.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0627: questions and answers

What does P0627 mean?

P0627: Fuel Pump "A" Control Circuit/Open. The ECU sees an open circuit in the fuel pump control (relay or pump module).

What are the symptoms of P0627?

No start. Stalling.

What causes P0627?

Faulty pump relay or module. Open wiring. Blown fuse.

How do you diagnose P0627?

1. Check fuse and relay 2. Check the pump module supply and control 3. Listen for the pump at key-on

Can I drive with P0627?

Not recommended. P0627 can lead to stalling, limp mode or engine damage; diagnose it before driving further.