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P12A6 2017 GMC Sierra Code - Fuel Pump Driver Control Module Enable Circuit Performance

Quick Answer

The P12A6 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Fuel Pump Driver Control Module Enable Circuit Performance. Common causes include Wiring harness issues, Damaged connectors, Faulty fuel pump driver control 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
P12A6 2017 GMC Sierra indicates Fuel Pump Driver Control Module Enable Circuit Performance.
Common causes
Common causes include Wiring harness issues, Damaged connectors, Faulty fuel pump driver control 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 15, 2024
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Code P12A6 2017 GMC Sierra Description

The P12A6 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Fuel Pump Driver Control Module Enable Circuit Performance. This code indicates that there is an issue with the fuel pump driver control module's ability to enable the fuel pump to operate efficiently. The fuel pump driver control module is responsible for regulating the fuel pump's operation, ensuring that the correct amount of fuel is delivered to the engine at all times.

OBDII Code P12A6 2017 GMC Sierra - Fuel Pump Driver Control Module Enable Circuit Performance
P12A6 2017 GMC Sierra Code - Fuel Pump Driver Control Module Enable Circuit Performance

Common Causes of P12A6 2017 GMC Sierra

  1. Wiring harness issues.
  2. Damaged connectors.
  3. Faulty fuel pump driver control module.
  4. Malfunctioning fuel pump.
  5. Electrical system issues.

Symptoms of P12A6 2017 GMC Sierra

  1. Engine hesitation or stumbling during acceleration.
  2. Rough idling or stalling.
  3. Decreased fuel efficiency.
  4. Engine misfires.
  5. Difficulty starting the vehicle.

How to Fix P12A6 2017 GMC Sierra

  1. Begin by conducting a thorough inspection of the wiring harness and connectors for any signs of damage or corrosion.
  2. Test the fuel pump driver control module to determine if it is functioning correctly.
  3. Check the fuel pump's operation and pressure to ensure it is delivering fuel properly.
  4. Replace any damaged wiring harnesses, connectors, or faulty components as needed.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P12A6 2017 GMC Sierra

The typical repair costs for addressing a P12A6 code can vary depending on the specific cause of the issue. In general, replacing a fuel pump driver control module or a fuel pump can range from $300 to $800, including parts and labor. Additional costs may apply if there are wiring harness issues or other related components that need to be replaced. It's recommended to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to inquire about rates in your local area.

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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 P12A6 2017 GMC Sierra Code

1. What does OBDII code P12A6 mean for a 2017 GMC Sierra?

The code P12A6 indicates a potential issue with the Fuel Pump Driver Control Module Enable Circuit Performance in your vehicle.

2. What are the common symptoms of OBDII code P12A6 in a 2017 GMC Sierra?

Common symptoms of this code may include difficulty starting the vehicle, engine stalling, or the fuel pump not functioning properly.

3. What are the possible causes of OBDII code P12A6 in a 2017 GMC Sierra?

Causes of code P12A6 can include a faulty fuel pump driver control module, damaged wiring or connectors, or a problem with the fuel pump itself.

4. How can I diagnose OBDII code P12A6 in my 2017 GMC Sierra?

Diagnosing this code typically involves using a scan tool to retrieve the specific trouble code, inspecting the fuel pump driver control module and related components, and testing the circuit for proper functionality.

5. What are some repair tips for addressing OBDII code P12A6 in a 2017 GMC Sierra?

Repair tips may include checking and repairing any damaged wiring or connectors, replacing the fuel pump driver control module if necessary, and ensuring proper installation and connections.

6. Can OBDII code P12A6 in a 2017 GMC Sierra be fixed at home, or is professional help recommended?

While some DIY enthusiasts may attempt to address this code at home, it is often recommended to seek professional help to accurately diagnose and repair the issue.

7. Is it safe to continue driving a 2017 GMC Sierra with OBDII code P12A6 present?

It is not recommended to continue driving the vehicle with this code present, as it can lead to potential fuel delivery issues and engine performance problems.

8. How much does it typically cost to repair OBDII code P12A6 in a 2017 GMC Sierra?

The cost of repairing this code can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic fees.

9. Are there any recalls or technical service bulletins related to OBDII code P12A6 in a 2017 GMC Sierra?

It is advisable to check with the manufacturer or a certified GMC dealership to inquire about any recalls or technical service bulletins related to this specific OBDII code in your vehicle.

10. What steps can be taken to prevent OBDII code P12A6 from occurring in a 2017 GMC Sierra in the future?

Regular maintenance, such as inspecting and servicing the fuel pump system, checking for wiring issues, and addressing any related trouble codes promptly, can help prevent the recurrence of code P12A6.

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