P0627: Fuel pump A control circuit open

Fuel pump control circuit open

Severity: Inspect soon

P0627 means the engine computer sees an open or fault in the circuit it uses to run the fuel pump. The engine may run normally for now, but if the pump stops getting power the engine stalls or will not start. Get it inspected soon and stop driving if it stalls.

It gets more serious if:

Stop: The engine stalls, loses power while driving, or cranks but will not start. Owners with P0627 report stalls while driving and at intersections followed by crank-no-start, and Ford links P0627 to an intermittent crank-no-start on some Mustangs. Do not keep driving; have it towed or checked where it sits.

Source: how we rate severity

P0627 in short

P0627 means the engine computer detected an open or fault in the fuel pump control circuit. Common causes are a fuse, damaged wiring, connector or ground faults, the fuel pump control module and the pump itself. The engine may stall or not restart. Get it inspected soon, and stop driving if it stalls.

On many newer vehicles the engine computer does not switch the fuel pump directly. It tells a fuel pump control module, or a relay, how hard to run the pump, and monitors that control circuit.

P0627 sets when the computer sees the circuit open or not behaving as commanded. That can be a wire, connector, fuse or ground, the control module, the pump, or a communication problem between the modules.

If network codes such as U0109 or fuel pressure codes are stored too, Ford's guidance is to check connectors, pins and grounds at the fuel pump control module, engine computer and battery junction box before replacing parts.

Most likely causes

Cause 1: Loose, corroded or pushed-out pins, damaged wiring or poor grounds
Common general cause
Why it ranks here
The circuit runs from the engine bay to the pump module near the tank, so connector and ground problems are common. Ford tells technicians to check pins and grounds at each module before replacing anything on the 2022 Maverick.
What would change this
Rises if a connector is loose, a pin is pushed out, a ground is corroded, or the fault changes when the harness is moved.
Cause 2: Blown fuse in the fuel pump circuit
Supported by vehicle data
Why it ranks here
Ford links an intermittent crank-no-start with P0627 to a blown fuse in the battery junction box on the 2011-2013 Mustang, and an Expedition owner reports a fuse relocation repair for P0627.
What would change this
Rises if a fuel pump fuse is open or the fuse terminal is loose or heat-damaged.
How to test the underhood fuse block (engine compartment fuse box)
Cause 3: Failed fuel pump control module
Supported by vehicle data
Why it ranks here
The fuel pump control module drives the pump on many Ford models. Ford bulletins pair P0627 with network code U0109 (lost communication with the fuel pump control module), and an owner reports a module replacement for P0627.
What would change this
Rises if U0109 is stored too or the module has no communication with good power and grounds.
Cause 4: Failing fuel pump or burnt pump wiring
Common general cause
Why it ranks here
A pump with a shorted motor or burnt connector can upset the control circuit and stop delivering fuel.
What would change this
Rises if the pump does not run when commanded with good power at its connector, or the pump connector is burnt.
How to test the fuel pump
Cause 5: Engine computer fault or software
Possible — needs testing
Why it ranks here
A failed driver in the engine computer is possible but less common; rule out the circuit and module first.
What would change this
Only rises once wiring, fuses and the pump module test good.
How to test the engine control module (ecm / pcm)

What to test first

Start at step 1. Each result tells you what it means and where to go next.

Step 1: Read all stored codes and freeze-frame data, and check for bulletins or recalls for your vehicle.
Low riskTool: scan tool, service information
- IfU0109 or other fuel pump module codes are stored too
  It meansThe module or its connections are likely involved.
  Points to: Failed fuel pump control module
- IfOnly P0627
  It meansCheck fuses and connections.
  Go to step 2
Step 2: With the key off, check the fuel pump fuses and relay (if fitted) in the fuse box against the owner's manual.
Low riskTool: owner's manual, fuse tester
- IfA fuse is blown or its terminal is loose or heat-damaged
  It meansRepair the cause and replace the fuse.
  Points to: Blown fuse in the fuel pump circuit
- IfFuses are good
  It meansInspect connectors and grounds.
  Go to step 3
Step 3: With the key off, inspect the connectors and grounds the service information lists for the fuel pump control module and engine computer for partial disconnects, pushed-out pins and corrosion.
Low riskTool: flashlight, service information
- IfA connector is loose, a pin is pushed out or a ground is corroded
  It meansRepair it, clear the codes and retest.
  Points to: Loose, corroded or pushed-out pins, damaged wiring or poor grounds
- IfEverything looks good
  It meansA shop needs to test the circuit.
  Go to step 4
Step 4: Have a shop command the pump with a scan tool, check power and grounds at the pump module and pump, and test the control circuit.
Best left to a shopTool: scan tool with output controls, multimeter, wiring diagram
Warning:Fuel pump work involves gasoline and fuel vapour near the tank; keep sparks and flames away and leave pump and pressure testing to a shop.
- IfOpen, short or high resistance in the control wiring
  It meansRepair the wiring.
  Points to: Loose, corroded or pushed-out pins, damaged wiring or poor grounds
- IfModule has good power, ground and command but does not drive the pump
  It meansThe module has failed.
  Points to: Failed fuel pump control module
- IfPump does not run with good power at its connector, or the connector is burnt
  It meansThe pump or its wiring has failed.
  Points to: Failing fuel pump or burnt pump wiring
- IfEverything else tests good
  It meansCheck for software updates or an engine computer fault.
  Points to: Engine computer fault or software

Symptoms

Hard starting or long cranking
Hesitation or misfire
Engine stalls while driving Gets more serious: stop and have it checked.
Cranks but will not start Gets more serious: stop and have it checked.

Compare with: Check engine light with loss of power

How to fix

Step 1: Write down every stored code and the freeze-frame data before clearing anything.
Step 2: Ask a dealer to check for open recalls and bulletins for your vehicle; several Ford models have bulletins for this code.

Parts and cost context

Fuel pump:Do not replace the pump on the code alone; fuses, connectors, grounds and the pump control module are often the cause.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Ford

2015 · Transit · 3.5L, 3.7L
Supported by vehicle data
Ford has a bulletin for a MIL with P0627 on the 3.5L and 3.7L (TSB 17-0011).
2022 · Maverick
Supported by vehicle data
Ford says to check connectors, pins and grounds at the fuel pump control module, PCM and battery junction box first (SSM 50826).
2011–2013 · Mustang
Supported by vehicle data
Ford links an intermittent crank-no-start with P0627 to a blown fuse in the battery junction box (TSB 12-11-12).
2012–2016 · F-250 Super Duty · 6.2L, 6.8L
Supported by vehicle data
Ford has a bulletin for P0627 with P025A, P025B and U0109 on the 6.2L and 6.8L (TSB 16-0060).
2013 · Expedition
Supported by vehicle data
An owner reports repeated stalls and crank-no-start with P0627, repaired over time with a fuse relocation, a pump control module and a pump with a burnt wire.
2013 · Taurus
Supported by vehicle data
An owner reports intermittent stalling with P0627.
2021 · F-150
Supported by vehicle data
An owner reports stalls while driving and a crank-no-start with P0627.

TSB 17-0011Status unverified
Ford TSB 17-0011: MIL with P0627
2015transit · 3.5L, 3.7L · issued February 2, 2017 · NHTSA 10095604
Some 2015 Transit with the 3.5L or 3.7L may have a MIL with P0627 stored. NHTSA's summary does not give the repair.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
SSM 50826Status unverified
Ford SSM 50826: P0627, P025A and fuel codes from module connections
2022maverick · issued June 3, 2022 · NHTSA 10213707
On the 2022 Maverick with P025A, P025B, P00C6, P008A, P0627 and/or U0109, check for partial disconnects, pushed-out pins and loose or corroded grounds at the fuel pump control module, PCM and battery junction box before other diagnosis.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
TSB 12-11-12Status unverified
Ford TSB 12-11-12: crank/no start and P0627 from a blown fuse
2011–2013mustang · issued November 16, 2012 · NHTSA 10051734
A blown fuse in the battery junction box can cause an intermittent crank/no-start with P0627 on the 2011-2013 Mustang.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
16-0060Status unverified
Ford TSB 16-0060: MIL with P0627, P025A, P025B and/or U0109
2012–2016f-250-super-duty · 6.2L, 6.8L · issued April 13, 2016 · NHTSA 10183761
2012-2016 F-Super Duty with the 6.2L or 6.8L built on or before 6 Apr 2016 may light the MIL with P0627, P025A, P025B and/or U0109. NHTSA's summary does not give the repair.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

All Fuel pump and injectors codes

Sources and review

P0627 Code: Fuel Pump 'A' Control Circuit/Open — CarParts.com Research Team
Ford TSB 12-11-12: crank/no start and P0627 from a blown fuse in the battery junction box, 2011-2013 Mustang — Ford Motor Company / NHTSA , November 16, 2012
NHTSA complaint ODI 11689917: 2021 Ford F-150, stalls while driving and crank-no-start with P0627 — NHTSA Office of Defects Investigation (complaint flat file) , September 25, 2025
NHTSA complaint ODI 11299740: 2013 Ford Expedition, stalls and crank-no-start with P0627 — NHTSA Office of Defects Investigation (complaint flat file) , January 8, 2020
NHTSA complaint ODI 11297369: 2013 Ford Taurus, intermittent stalling with P0627 — NHTSA Office of Defects Investigation (complaint flat file) , January 4, 2020
Ford SSM 50826: P0627, P025A and fuel codes from fuel pump control module connections, 2022 Maverick — Ford Motor Company / NHTSA , June 3, 2022
Ford TSB 16-0060: MIL with P0627, P025A, P025B and/or U0109, 2012-2016 F-Super Duty 6.2L/6.8L — Ford Motor Company / NHTSA , April 13, 2016
DTC P069E Fuel Pump Control Module Requested MIL Illumination, 2011 Saab 9-5 service information — Saab / General Motors service information (saabwisonline.com)
Ford TSB 17-0011: MIL with P0627, 2015 Transit 3.5L/3.7L — Ford Motor Company / NHTSA , February 2, 2017

Last reviewed: October 15, 2026
Written by: Saurabh K.
Editorial review: Pending
Technician review: Technician review pending

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error

Severity: Inspect soon

Most likely causes

Cause 1: Loose, corroded or pushed-out pins, damaged wiring or poor grounds

Cause 2: Blown fuse in the fuel pump circuit

Cause 3: Failed fuel pump control module

Cause 4: Failing fuel pump or burnt pump wiring

Cause 5: Engine computer fault or software

What to test first

Step 1: Read all stored codes and freeze-frame data, and check for bulletins or recalls for your vehicle.

Step 2: With the key off, check the fuel pump fuses and relay (if fitted) in the fuse box against the owner's manual.

Step 3: With the key off, inspect the connectors and grounds the service information lists for the fuel pump control module and engine computer for partial disconnects, pushed-out pins and corrosion.

Step 4: Have a shop command the pump with a scan tool, check power and grounds at the pump module and pump, and test the control circuit.