P0629 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P0629 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0629 code.

What Does P0629 Code Mean?

OBD-II Code P0629 is defined as a Fuel Pump "A" Control Circuit High

The Fuel Pump enables the transfer of fuel from the tank to the fuel injectors. If the engine control module (PCM) detects the fuel pump is not operating properly, the PCM will set code P0629.

P0629 Symptoms

  • Decreased engine performance
  • Engine may not start

Common Problems That Trigger the P0629 Code

  • Fuel pump failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue

Common Repairs Needed for the P0629 Code

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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