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P14CD 2014 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect

Quick Answer

The diagnostic trouble code P14CD for a 2014 GMC Sierra indicates a problem with the Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter being incorrect. Common causes include Faulty Fuel Pump Driver Control Module, Wiring issues or poor connections, Software glitches in the vehicle's computer system. 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
P14CD 2014 GMC Sierra indicates Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module, Wiring issues or poor connections, Software glitches in the vehicle's computer system.
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 16, 2024
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Code P14CD 2014 GMC Sierra Description

The diagnostic trouble code P14CD for a 2014 GMC Sierra indicates a problem with the Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter being incorrect. This module is responsible for controlling the fuel pump operation in the vehicle. When this code is triggered, it means that the signal counter for the configuration command is not matching the expected value, indicating a communication error between the module and the vehicle's computer system.

OBDII Code P14CD 2014 GMC Sierra - Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect
P14CD 2014 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect

Common Causes of P14CD 2014 GMC Sierra

  1. Faulty Fuel Pump Driver Control Module.
  2. Wiring issues or poor connections.
  3. Software glitches in the vehicle's computer system.
  4. Electrical problems within the fuel pump circuit.
  5. Corrosion or damage to the module connectors.

Symptoms of P14CD 2014 GMC Sierra

  1. Engine stalling or hesitation during acceleration.
  2. Rough idling or misfiring.
  3. Decreased fuel efficiency.
  4. Check Engine Light illuminated on the dashboard.
  5. Difficulty starting the vehicle.

How to Fix P14CD 2014 GMC Sierra

  1. Begin by conducting a thorough inspection of the fuel pump driver control module and its connectors for any visible damage or corrosion.
  2. Use a diagnostic scanner to retrieve the trouble codes and data related to the fuel pump driver control module configuration.
  3. Test the module's functionality by checking its communication with the vehicle's computer system.
  4. If the module is found to be faulty, replace it with a new one and reprogram it according to manufacturer specifications.
  5. Clear the trouble codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix P14CD 2014 GMC Sierra

The typical repair costs for addressing the P14CD code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty fuel pump driver control module can range from $200 to $500, including parts and labor. However, additional costs may apply if there are wiring or electrical issues that need to be addressed. It's recommended to consult with a professional mechanic to get an accurate estimate based on the specific diagnosis and repair needed for your vehicle. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to inquire about local rates for a more precise cost estimate.

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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 P14CD 2014 GMC Sierra Code

1. What does the OBDII code P14CD mean on a 2014 GMC Sierra?

The P14CD code indicates an issue with the Fuel Pump Driver Control Module (FPCM), specifically that the configuration command signal 1 message counter is incorrect.

2. What are the common symptoms of code P14CD on a 2014 GMC Sierra?

Symptoms may include difficulty starting the engine, reduced engine performance, poor fuel efficiency, or a check engine light.

3. What causes the P14CD code to appear on a GMC Sierra?

Common causes include a malfunctioning Fuel Pump Driver Control Module, wiring or connector issues, or a software calibration error in the FPCM.

4. Can a bad fuel pump cause the P14CD code on a 2014 GMC Sierra?

A bad fuel pump itself is unlikely to cause this code, but issues with the fuel pump driver module or related wiring can lead to the P14CD error.

5. How do I diagnose the P14CD code on my 2014 GMC Sierra?

Diagnose the P14CD code by checking the FPCM and related wiring for damage, corrosion, or loose connections. A professional scan tool can also help verify the signal data and communication with the module.

6. Can I drive my 2014 GMC Sierra with the P14CD code?

While the vehicle may still run, driving with this code is not recommended as it can lead to further issues with fuel delivery and engine performance.

7. How is the P14CD code fixed on a 2014 GMC Sierra?

Fixing the P14CD code may involve reprogramming the FPCM, repairing or replacing damaged wiring, or replacing the Fuel Pump Driver Control Module if it is defective.

8. Does the P14CD code require module reprogramming on a GMC Sierra?

In some cases, yes. If the issue is due to a software calibration error, reprogramming the FPCM may resolve the problem.

9. How much does it cost to repair the P14CD code on a 2014 GMC Sierra?

Repair costs vary, but replacing the Fuel Pump Driver Control Module typically ranges from $300 to $700, including parts and labor.

10. Can a faulty ground connection trigger the P14CD code?

Yes, a poor ground connection can disrupt communication with the FPCM and cause the P14CD code to appear. Checking and repairing ground points is a critical step in diagnosing this issue.

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