AutoCodes – GMC – P14D4 2016 GMC Sierra

P14D4 2016 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 2 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: P14D4 2016 GMC Sierra indicates Fuel Pump Driver Control Module Configuration Command Signal 2 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.

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Code Popularity 171

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P14D4 2016 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 2 Message Counter is Incorrect.

OBDII Code P14D4 2016 GMC Sierra - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect - AutoCodes.com — P14D4 2016 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P14D4 2016 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 P14D4 2016 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 P14D4 2016 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 P14D4 2016 GMC Sierra code?

Need more information on how to fix the P14D4 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P14D4 2016 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 P14D4 2016 GMC Sierra Code

1. What does the OBDII code P14D4 mean on a 2016 GMC Sierra?

The code P14D4 indicates an issue with the Fuel Pump Driver Control Module (FPCM), specifically that the Configuration Command Signal 2 Message Counter is incorrect.

2. What are the common symptoms of code P14D4 in a 2016 GMC Sierra?

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

3. What causes the P14D4 code to appear on a 2016 GMC Sierra?

Common causes include a malfunctioning Fuel Pump Driver Control Module, wiring issues, communication errors between the module and the ECM, or a failed software update.

4. Can I drive my 2016 GMC Sierra with the P14D4 code active?

Driving with this code is not recommended as it may lead to fuel delivery problems and engine performance issues, potentially causing further damage.

5. How do you diagnose the P14D4 code on a 2016 GMC Sierra?

A professional technician will typically use a scan tool to check for communication faults, inspect the wiring and connectors, and test the Fuel Pump Driver Control Module for proper operation.

6. What repairs can fix the P14D4 code on a 2016 GMC Sierra?

Repairs may include reprogramming or replacing the Fuel Pump Driver Control Module, repairing damaged wiring or connectors, or updating the vehicleâ€™s software.

7. Is the Fuel Pump Driver Control Module expensive to replace for a 2016 GMC Sierra?

The cost can vary, but replacing the module typically ranges from $300 to $800, including parts and labor.

8. Does the P14D4 code require a software update to fix?

In some cases, reprogramming or updating the software for the Fuel Pump Driver Control Module may resolve the issue.

9. Can a loose or corroded connector cause the P14D4 code on a 2016 GMC Sierra?

Yes, loose or corroded connectors in the wiring to the Fuel Pump Driver Control Module can disrupt communication and trigger this code.

10. How can I prevent the P14D4 code from recurring?

Ensure regular maintenance, check wiring and connections for corrosion or damage, and address software updates promptly to prevent communication errors with the module.