Failed fuel pump relay or fuse; Wiring fault in the pump control circuit; Faulty fuel pump control module (on some vehicles); Failed fuel pump.

P0627: Fuel Pump "A" Control Circuit/Open

Q: What does P0627 mean?

P0627: Fuel Pump "A" Control Circuit/Open. The engine computer has detected an open circuit or other fault in the fuel pump control circuit.

Q: Is it safe to drive with P0627?

Severity: High. Limit driving and diagnose promptly. Continued driving can cause damage, stalling or limp mode.

P0627 means Fuel Pump "A" Control Circuit/Open. The engine computer has detected an open circuit or other fault in the fuel pump control circuit.

CodeP0627

SystemFuel system

SeverityHigh

TypeGeneric powertrain

Can I keep driving? Limit driving and diagnose promptly. Continued driving can cause damage, stalling or limp mode.

Common symptoms

Engine cranks but does not start
Stalling while driving
Loss of power

Possible causes

Failed fuel pump relay or fuse
Wiring fault in the pump control circuit
Faulty fuel pump control module (on some vehicles)
Failed fuel pump

How to diagnose P0627

Check the fuel pump fuse and relay.
Listen for the pump priming when the ignition is switched on.
Check voltage and ground at the pump connector.
Check the pump control module if the vehicle has one.

What the code means, digit by digit

PPowertrain0Generic (SAE) code6Sub-system27Specific fault

Generic codes have the same definition on every OBD-II vehicle (petrol cars from model year 1996 in the US, 2001 in the EU; diesels later). Manufacturers can add their own enhanced codes; those are not listed here.

Symptoms linked to P0627

Engine cranks but won't start

Related codes

P0230 Fuel Pump Primary Circuit

General guidance only. Fault codes describe what the engine computer saw, not which part failed: confirm with testing before replacing parts, and follow the vehicle's service information.