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P0627 Ford Code - Fuel Pump 'A' Control Circuit/Open

Quick Answer

The P0627 diagnostic trouble code (DTC) for Ford vehicles specifically refers to a malfunction in the fuel pump 'A' control circuit, indicating an open circuit issue. Common causes include Damaged wiring or connectors in the fuel pump control circuit, Faulty fuel pump relay, Defective fuel pump driver module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0627 Ford indicates Fuel Pump 'A' Control Circuit/Open.
Common causes
Common causes include Damaged wiring or connectors in the fuel pump control circuit, Faulty fuel pump relay, Defective fuel pump driver module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0627 Ford Description

The P0627 diagnostic trouble code (DTC) for Ford vehicles specifically refers to a malfunction in the fuel pump 'A' control circuit, indicating an open circuit issue. The fuel pump control circuit is responsible for regulating the fuel pump's operation, ensuring the correct amount of fuel is delivered to the engine at all times. When this circuit is open, it means that there is a break or interruption in the electrical connection, preventing the fuel pump from functioning properly.

OBDII Code P0627 Ford - Fuel Pump 'A' Control Circuit/Open
P0627 Ford Code - Fuel Pump 'A' Control Circuit/Open

Common Causes of P0627 Ford

  1. Damaged wiring or connectors in the fuel pump control circuit
  2. Faulty fuel pump relay
  3. Defective fuel pump driver module
  4. Malfunctioning powertrain control module (PCM)
  5. Corrosion or contamination in the fuel pump system

Symptoms of P0627 Ford

  1. Engine misfires or runs rough
  2. Difficulty starting the engine
  3. Loss of power during acceleration
  4. Engine stalling or shutting off unexpectedly
  5. Illumination of the Check Engine Light

How to Fix P0627 Ford

  1. Perform a thorough inspection of the fuel pump control circuit, including wiring and connectors, to identify any visible damage or corrosion.
  2. Test the fuel pump relay and replace it if found to be faulty.
  3. Check the fuel pump driver module for proper operation and replace if necessary.
  4. Inspect the powertrain control module (PCM) for any signs of malfunction and reprogram or replace it as needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0627 Ford

The cost of repairing a P0627 code for a Ford vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the typical repair costs for this issue can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may be higher or lower depending on factors such as the location of the repair shop, the vehicle make and model, and the type of engine. Additionally, diagnostic time and labor rates can vary, with most auto repair shops charging between $80 and $150 per hour. It's recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your specific vehicle and circumstances.

What does this mean?

Tech Notes for P0627 Ford

There is a Factory Service Bulletin for the 2012-2016 Ford F-Super Duty:
2012-2016 Ford F-Super Duty Factory Service Bulletin OBDII Code P0627





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Information for Specific Ford Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0627 Ford Code

1. What are the common symptoms of OBDII code P0627 in a Ford related to the fuel pump control circuit?

- Common symptoms include issues with starting the vehicle, engine stalling, poor fuel economy, and possible illumination of the Check Engine Light.

2. What can cause the Fuel Pump 'A' Control Circuit/Open code P0627 to trigger in a Ford?

- The code can be triggered by a faulty fuel pump relay, damaged wiring, a defective fuel pump driver module, or issues with the powertrain control module (PCM).

3. How can I diagnose the cause of OBDII code P0627 in my Ford related to the fuel pump control circuit?

- Diagnosing the issue involves checking the fuel pump relay, inspecting the wiring for any damage or corrosion, testing the fuel pump driver module, and verifying the PCM functionality.

4. Can a bad fuel pump itself cause the P0627 code to appear in a Ford?

- While a malfunctioning fuel pump can contribute to the code being triggered, the primary causes are typically related to the control circuit, fuel pump relay, wiring, or modules.

5. Are there any safety precautions to consider when repairing the Fuel Pump 'A' Control Circuit/Open code in a Ford?

- Before starting any repair work, it is advisable to disconnect the vehicle's battery to prevent any electrical mishaps and ensure safety while working on the fuel pump control circuit.

6. What are some general repair tips for resolving the OBDII code P0627 in a Ford related to the fuel pump control circuit?

- Repair tips include checking and replacing the fuel pump relay, repairing any damaged wiring, testing and replacing the fuel pump driver module, and resetting the PCM after the repairs.

7. Can I drive my Ford with the P0627 code related to the fuel pump control circuit without causing further damage?

- It is not recommended to drive the vehicle with this code present, as it can lead to fuel delivery issues, engine stalling, and potentially causing further damage to the fuel system.

8. How much does it typically cost to repair the Fuel Pump 'A' Control Circuit/Open code P0627 in a Ford?

- The cost of repairs can vary depending on the specific cause of the issue, but it may involve expenses for replacement parts, labor, and diagnostic fees at a repair shop or dealership.

9. Is it possible to reset the OBDII code P0627 in a Ford related to the fuel pump control circuit without fixing the underlying issue?

- While clearing the code may temporarily turn off the Check Engine Light, it is crucial to address and repair the root cause to prevent further complications and ensure proper vehicle operation.

10. Can a DIY enthusiast with basic automotive knowledge fix the P0627 code in a Ford related to the fuel pump control circuit?

- Depending on the specific cause, some DIY enthusiasts may be able to address simpler issues like checking and replacing the fuel pump relay or inspecting wiring, but more complex repairs may require professional assistance.

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