AutoCodes – Volkswagen – P0628 Volkswagen

P0628 Volkswagen Code - Fuel Pump 'A' Control Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the Fuel Pump Control Circuit. Common causes include Faulty fuel pump relay, Faulty fuel pump, Fuel pump harness is open or shorted. 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
P0628 Volkswagen indicates Fuel Pump 'A' Control Circuit Low.
Common causes
Common causes include Faulty fuel pump relay, Faulty fuel pump, Fuel pump harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 15,939
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 01, 2019
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Code P0628 Volkswagen Description

The Engine Control Module (ECM) monitors the Fuel Pump Control Circuit. The ECM sets the OBDII code when the Fuel Pump Control Circuit is out of factory specifications.
OBDII Code P0628 Volkswagen - Fuel Pump 'A' Control Circuit Low - AutoCodes.com
P0628 Volkswagen Code - Fuel Pump 'A' Control Circuit Low

What are the Possible Causes of the DTC P0628 Volkswagen?

  • Faulty fuel pump relay
  • Faulty fuel pump
  • Fuel pump harness is open or shorted
  • Fuel pump circuit poor electrical connection
  • Faulty fuel pump control module (if applicable)

How to Fix the DTC P0628 Volkswagen?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0628 Volkswagen code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0628 Volkswagen code?

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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 P0628 Volkswagen Code

1. What are the common symptoms of OBDII code P0628 in a Volkswagen related to the Fuel Pump 'A' Control Circuit Low?

- Common symptoms include hard starting, stalling, engine misfires, and a noticeable drop in fuel efficiency.

2. What can cause the OBDII code P0628 in a Volkswagen indicating an issue with the Fuel Pump 'A' Control Circuit?

- Possible causes include a faulty fuel pump control module, damaged wiring or connectors, or a malfunctioning fuel pump itself.

3. How serious is the OBDII code P0628 in a Volkswagen related to the Fuel Pump 'A' Control Circuit Low?

- This code should be addressed promptly as it can lead to drivability issues and potential stalling of the vehicle due to inadequate fuel delivery.

4. Can I continue driving my Volkswagen with the OBDII code P0628 indicating a problem with the Fuel Pump 'A' Control Circuit Low?

- It is not recommended to drive the vehicle with this code present, as it can cause performance issues and potential damage to the fuel system.

5. What are some DIY repair tips for resolving OBDII code P0628 in a Volkswagen associated with the Fuel Pump 'A' Control Circuit Low?

- DIY repair tips include checking for loose or damaged wiring, inspecting the fuel pump control module for any visible damage, and ensuring proper connections.

6. How can a mechanic diagnose and repair OBDII code P0628 in a Volkswagen signaling an issue with the Fuel Pump 'A' Control Circuit Low?

- A mechanic will typically use a diagnostic scanner to pinpoint the exact cause of the code, test the fuel pump control module, inspect the wiring, and replace any faulty components.

7. Will resetting the OBDII code P0628 in a Volkswagen related to the Fuel Pump 'A' Control Circuit Low make the issue go away?

- Simply resetting the code will not fix the underlying problem causing the code. It is important to diagnose and repair the issue to prevent it from reoccurring.

8. How much does it cost to repair OBDII code P0628 in a Volkswagen associated with the Fuel Pump 'A' Control Circuit Low?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the fuel pump control module, repairing wiring, or replacing the fuel pump.

9. Can extreme weather conditions affect the triggering of OBDII code P0628 in a Volkswagen due to the Fuel Pump 'A' Control Circuit Low?

- Yes, extreme temperatures can sometimes cause electrical components like the fuel pump control module to malfunction, leading to the triggering of this code.

10. Is it possible for a Volkswagen to experience intermittent issues with OBDII code P0628 related to the Fuel Pump 'A' Control Circuit Low?

- Yes, intermittent issues can occur with this code, making it important to address the problem promptly to avoid potential breakdowns or drivability issues.

Discuss the causes and fixes for P0628 Volkswagen OBDII Code

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