P0627 Fuel pump control circuit/open
What P0627 means
The engine control unit has found an open or faulty circuit for controlling the fuel pump. If the pump does not get the right command, the engine can lose fuel pressure, stall or refuse to start.
P0627 is a generic SAE J2012 code: it means the same on every make. The exact cause still depends on the car, so read the freeze-frame data before replacing parts.
At a glance
- Severity
- Medium
- Typical repair cost
- 60–700 €
- Workshop time
- 0.3–3 h
- Repair difficulty
- Medium
- DIY possible
- Yes
- Check engine light
- Yes
- Affects emissions test
- No
- Limp mode possible
- Yes
Parts and labour at an independent workshop in Europe. Main dealers charge more; the cause decides the bill, not the code.
Symptoms
- Engine cranks but does not start
- Stalling or cutting out while driving
- Hesitation or loss of power
- Check engine light on
Common causes
- Faulty fuel pump relay
- Faulty fuel pump control module
- Blown fuel pump fuse
- Broken or corroded wiring to the pump or module, often near the tank
- Failing fuel pump drawing too much current
Can I keep driving with P0627?
You can drive while the engine runs normally, but have it checked within one to two weeks. If the engine cuts out or hesitates, get it checked sooner, because stalling in traffic is dangerous.
What to check first
- Check the fuel pump fuse and relay
- Listen for the pump priming when the ignition is switched on
- Inspect the fuel pump control module and connectors for corrosion
- Measure voltage at the pump and check fuel pressure
Related codes
- P0628 Fuel pump A control circuit low
- P0620 Generator (alternator) control circuit
- P0615 Starter relay circuit
- P0610 Control module vehicle options error
- P0645 A/C clutch relay control circuit
- P0607 Control module performance
- P0606 Control module processor fault
- P0605 Internal control module read only memory (ROM) error
Data: TORKO fault-code catalogue, built on OBDex (CC0-1.0) and reviewed against workshop practice. Informational only — it does not replace a diagnosis by a mechanic.
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