AutoCodes – GMC – P14D5 2018 GMC Sierra

P14D5 2018 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 3 Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module circuit poor electrical connection. 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
P14D5 2018 GMC Sierra indicates Fuel Pump Driver Control Module Configuration Command Signal 3 Message Counter Incorrect.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module circuit poor electrical connection.
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 144
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 28, 2022
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Code P14D5 2018 GMC Sierra Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Fuel Pump Driver Control Module Configuration Command Signal 3 Message Counter is Incorrect.
OBDII Code P14D5 2018 GMC Sierra - Fuel Pump Driver Control Module Configuration Command Signal 3 Message Counter Incorrect - AutoCodes.com
P14D5 2018 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 3 Message Counter Incorrect

What are the Possible Causes of the DTC P14D5 2018 GMC Sierra?

  • Faulty Fuel Pump Driver Control Module
  • Fuel Pump Driver Control Module harness is open or shorted
  • Fuel Pump Driver Control Module circuit poor electrical connection

How to Fix the DTC P14D5 2018 GMC Sierra?

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 P14D5 2018 GMC Sierra 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 P14D5 2018 GMC Sierra code?

Need more information on how to fix the P14D5 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P14D5 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P14D5 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P14D5 in a 2018 GMC Sierra?

The common symptoms of code P14D5 typically include issues with the fuel pump operation, such as intermittent or complete fuel pump failure, engine stalling, or difficulty starting the vehicle.

2. What could cause the OBDII code P14D5 to appear in a 2018 GMC Sierra?

The most common cause of code P14D5 in a 2018 GMC Sierra is a fault in the Fuel Pump Driver Control Module (FDCM) configuration, such as incorrect signal messages being sent or received.

3. How serious is the OBDII code P14D5 in a 2018 GMC Sierra?

Code P14D5 can be a serious issue as it directly affects the fuel pump operation, which is essential for the proper functioning of the vehicle. It is recommended to address this code promptly to avoid potential engine performance issues.

4. Can I continue driving my 2018 GMC Sierra with the OBDII code P14D5 present?

It is not advisable to continue driving your GMC Sierra with code P14D5 present, as it can lead to fuel delivery problems and potential engine stalling. It is recommended to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose and repair the OBDII code P14D5 in my 2018 GMC Sierra?

Diagnosing and repairing code P14D5 typically involves inspecting the Fuel Pump Driver Control Module for configuration errors, checking the wiring and connectors for any faults, and ensuring proper communication between the module and the vehicle's ECM.

6. Is it possible to reset the OBDII code P14D5 in a 2018 GMC Sierra without fixing the underlying issue?

While you can reset the code temporarily, it will likely reappear if the underlying issue with the Fuel Pump Driver Control Module configuration is not addressed. It is recommended to diagnose and repair the root cause of the problem.

7. Can a DIY enthusiast fix the OBDII code P14D5 in a 2018 GMC Sierra?

Repairing OBDII code P14D5 often requires advanced diagnostic tools and knowledge of automotive electronics. It is recommended to seek assistance from a qualified mechanic or technician to properly diagnose and repair this issue.

8. How much does it cost to repair the OBDII code P14D5 in a 2018 GMC Sierra?

The cost of repairing code P14D5 can vary depending on the exact cause of the issue and the labor rates in your area. It is best to get a diagnostic from a professional to receive an accurate estimate for the repair.

9. Are there any preventative maintenance tips to avoid OBDII code P14D5 in a 2018 GMC Sierra?

To prevent code P14D5 from appearing, it's essential to follow the manufacturer's recommended maintenance schedule for your GMC Sierra. Regularly inspecting and maintaining the fuel system components can also help prevent issues that may trigger this code.

10. Will fixing the OBDII code P14D5 improve the performance and fuel efficiency of my 2018 GMC Sierra?

Addressing and resolving code P14D5 can potentially improve the performance and fuel efficiency of your GMC Sierra, as it ensures proper fuel pump operation and fuel delivery to the engine.

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