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P14D4 2017 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

Quick Answer

The P14D4 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter being incorrect. Common causes include Faulty fuel pump driver control module, Wiring issues, Communication errors between components. 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 2017 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, Wiring issues, Communication errors between components.
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 17, 2024
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Code P14D4 2017 GMC Sierra Description

The P14D4 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter being incorrect. This code indicates that there is a discrepancy in the signal being sent by the fuel pump driver control module, which is responsible for regulating the fuel pump's operation. The fuel pump driver control module plays a crucial role in managing the fuel delivery system, ensuring that the correct amount of fuel is supplied to the engine for optimal performance.

OBDII Code P14D4 2017 GMC Sierra - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect
P14D4 2017 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

Common Causes of P14D4 2017 GMC Sierra

  1. Faulty fuel pump driver control module
  2. Wiring issues
  3. Communication errors between components
  4. Corrosion or damage to electrical connections
  5. Software glitches or programming errors

Symptoms of P14D4 2017 GMC Sierra

  1. Engine misfires
  2. Stalling
  3. Rough idling
  4. Poor acceleration
  5. Starting issues

How to Fix P14D4 2017 GMC Sierra

  1. Diagnose the root cause of the issue by using a diagnostic scanner to retrieve the specific fault codes and perform a thorough inspection of the fuel pump driver control module and related components.
  2. Check the wiring harness and electrical connections for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the fuel pump driver control module to ensure it is functioning correctly. Replace the module if it is found to be faulty.
  4. Clear the DTCs from the vehicle's computer system and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, consider seeking professional help from a certified mechanic or dealership for further diagnosis and repair.

Cost to Fix P14D4 2017 GMC Sierra

The typical repair costs for addressing a P14D4 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. 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 issues or other components that need to be repaired or replaced. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local providers for a more accurate 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 P14D4 2017 GMC Sierra Code

1. What does the OBDII code P14D4 mean for a 2017 GMC Sierra?

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 2017 GMC Sierra?

Common symptoms include engine performance issues, difficulty starting, reduced fuel efficiency, or the illumination of the check engine light.

3. What causes the P14D4 code to appear in a 2017 GMC Sierra?

The code can be caused by a faulty Fuel Pump Driver Control Module, wiring issues, poor electrical connections, or corrupted module programming.

4. How do you diagnose the P14D4 code in a 2017 GMC Sierra?

Diagnosis involves using a scan tool to confirm the code, inspecting the FPCM wiring and connectors, checking for electrical continuity, and verifying module programming.

5. Can driving with the P14D4 code damage my 2017 GMC Sierra?

While the vehicle may still run, ignoring the code can lead to reduced performance or further damage to fuel system components over time.

6. How is the P14D4 code fixed on a 2017 GMC Sierra?

Repairs may include reprogramming or replacing the Fuel Pump Driver Control Module, repairing damaged wiring, or ensuring proper electrical connections.

7. Is the P14D4 code specific to GMC Sierras, or does it affect other vehicles?

While it can appear on other GM vehicles, the exact meaning and repair steps may vary slightly depending on the make and model.

8. How much does it cost to repair the P14D4 code on a 2017 GMC Sierra?

Repair costs can range from $150 to $600+ depending on whether the module needs reprogramming or replacement, plus diagnostic fees.

9. Can a software update fix the P14D4 code on a 2017 GMC Sierra?

Yes, in some cases, reprogramming or updating the FPCM software can resolve the issue if the problem lies in corrupted programming.

10. Can a bad battery or alternator cause the P14D4 code on a 2017 GMC Sierra?

Yes, insufficient voltage from a weak battery or malfunctioning alternator can affect the FPCM’s operation and trigger this code.

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