OBD Guide
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P0627

Fuel Pump A Control Circuit/Open

P0627 is an OBD-II diagnostic trouble code meaning: Fuel Pump A Control Circuit/Open. Common causes: blown fuel pump fuse, faulty fuel pump relay. Estimated repair cost: $1–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$1–167 (est.)

Symptoms

  • The Check Engine light comes on
  • The engine does not start or stalls after starting
  • The characteristic hum of the fuel pump is not heard when the ignition is turned on
  • Fuel pressure is missing or below normal
  • The engine stalls while driving for no apparent reason

Causes

  • Blown fuel pump fuse
  • Faulty fuel pump relay
  • Broken wire in the pump relay control circuit
  • Fuel pump control module (FPM) malfunction
  • Internal ECU fault (pump control output)

How to Fix

  1. Check the fuel pump fuse (usually in the relay box)
  2. Check the fuel pump relay - replace it with a good one
  3. Listen to see if the pump hum is heard when the ignition is turned on.
  4. Measure the supply voltage at the fuel pump connector
  5. Check the wiring from the ECU to the pump relay
  6. Check the fuel pressure with a pressure gauge

Related codes

P0628P0629P062AP0087P0088

Error P0627 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0627 code mean?

P0627 is an OBD-II diagnostic trouble code that indicates: Fuel Pump A Control Circuit/Open

What causes a P0627 error code?

The most common causes of P0627 include: Blown fuel pump fuse; Faulty fuel pump relay; Broken wire in the pump relay control circuit; Fuel pump control module (FPM) malfunction.

How do I fix a P0627 diagnostic trouble code?

To fix P0627: Check the fuel pump fuse (usually in the relay box). Check the fuel pump relay - replace it with a good one. Listen to see if the pump hum is heard when the ignition is turned on.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0627?

Yes, but get it checked soon

How much does it cost to fix P0627?

The estimated repair cost for P0627 is $1–167. Actual cost depends on your vehicle, location, and labor rates.

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