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P14CD 2015 Chevrolet Silverado Code - Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect

Quick Answer

The P14CD diagnostic trouble code (DTC) indicates a problem with the Fuel Pump Driver Control Module (FPDCM) in a 2015 Chevrolet Silverado. Common causes include Faulty Fuel Pump Driver Control Module: The FPDCM may be malfunctioning or damaged, Wiring Issues: Damaged or corroded wiring or connectors related to the FPDCM can disrupt communication, Software Glitches: Outdated or corrupted software in the ECM or FPDCM may lead to incorrect message counts. 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 2015 Chevrolet Silverado indicates Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module: The FPDCM may be malfunctioning or damaged, Wiring Issues: Damaged or corroded wiring or connectors related to the FPDCM can disrupt communication, Software Glitches: Outdated or corrupted software in the ECM or FPDCM may lead to incorrect message counts.
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 Oct 24, 2024
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Code P14CD 2015 Chevrolet Silverado Description

The P14CD diagnostic trouble code (DTC) indicates a problem with the Fuel Pump Driver Control Module (FPDCM) in a 2015 Chevrolet Silverado. Specifically, this code suggests that the configuration command signal from the FPDCM is not matching the expected message counter values. The FPDCM is responsible for regulating the fuel pump's operation, ensuring that the engine receives the appropriate amount of fuel under varying conditions. When this code is triggered, it can lead to erratic fuel pump operation, which may result in poor engine performance, reduced fuel efficiency, and potential stalling.

OBDII Code P14CD 2015 Chevrolet Silverado - Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect
P14CD 2015 Chevrolet Silverado Code - Fuel Pump Driver Control Module Configuration Command Signal 1 Message Counter Incorrect

Common Causes of P14CD 2015 Chevrolet Silverado

  1. Faulty Fuel Pump Driver Control Module: The FPDCM may be malfunctioning or damaged.
  2. Wiring Issues: Damaged or corroded wiring or connectors related to the FPDCM can disrupt communication.
  3. Software Glitches: Outdated or corrupted software in the ECM or FPDCM may lead to incorrect message counts.
  4. Fuel Pump Problems: A failing fuel pump may not respond correctly to commands from the FPDCM.
  5. Electrical Interference: Issues with the vehicle's electrical system, such as shorts or grounding problems, can affect the FPDCM's operation.

Symptoms of P14CD 2015 Chevrolet Silverado

  1. Engine Stalling: The vehicle may unexpectedly stall due to inadequate fuel supply.
  2. Poor Acceleration: Drivers may notice a lack of power or sluggishness when accelerating.
  3. Check Engine Light: The illumination of the check engine light on the dashboard is a common symptom.
  4. Increased Fuel Consumption: The vehicle may exhibit reduced fuel efficiency due to improper fuel delivery.
  5. Difficulty Starting: The engine may have trouble starting, particularly after sitting for extended periods.

How to Fix P14CD 2015 Chevrolet Silverado

  1. Diagnostic Scan: Begin by using an OBD-II scanner to confirm the P14CD code and check for any additional codes that may provide further insight.
  2. Visual Inspection: Inspect the wiring and connectors associated with the FPDCM for signs of damage, corrosion, or loose connections.
  3. Module Testing: Test the FPDCM for proper operation using specialized diagnostic equipment to determine if it is functioning correctly.
  4. Software Update: If necessary, update the ECM and FPDCM software to the latest version to address potential glitches.
  5. Replace Components: If the FPDCM is found to be faulty, replace it with a new unit and clear the codes before retesting the system.

Cost to Fix P14CD 2015 Chevrolet Silverado

The cost to repair the P14CD code can vary widely based on the specific diagnosis and repair needed. On average, you might expect to pay between $200 and $800 for parts and labor. This estimate includes potential costs for a new FPDCM, wiring repairs, and labor charges. Labor rates typically range from $80 to $150 per hour, depending on the shop's location and reputation. In metropolitan areas or dealerships, rates may be higher, while independent shops may offer more competitive pricing. It is advisable to consult with local repair shops for a more precise estimate tailored to your vehicle's specific needs.

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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 2015 Chevrolet Silverado Code

1. What does the OBDII code P14CD mean on a 2015 Chevrolet Silverado?

P14CD 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 symptoms of the P14CD code on a 2015 Chevrolet Silverado?

Symptoms may include a check engine light, engine stalling, rough idling, or difficulty starting the vehicle.

3. What causes the P14CD code to appear on a 2015 Chevrolet Silverado?

Common causes include faulty wiring or connectors to the Fuel Pump Driver Control Module, a malfunctioning FPCM, or a software issue in the module.

4. Can a bad fuel pump cause the P14CD code on a 2015 Silverado?

A bad fuel pump is unlikely to directly cause the P14CD code, but issues with the FPCM, which controls the fuel pump, can trigger it.

5. How do I diagnose the P14CD code on a 2015 Chevrolet Silverado?

Start by inspecting the wiring and connectors to the FPCM for damage or corrosion. Use a scan tool to check for additional codes and verify the FPCM's functionality.

6. Can the P14CD code cause drivability issues on a 2015 Chevrolet Silverado?

Yes, this code can lead to drivability issues such as stalling, rough idling, or reduced engine performance.

7. How do I fix the P14CD code on a 2015 Chevrolet Silverado?

Repairs may include replacing or repairing damaged wiring or connectors, reprogramming the FPCM, or replacing the module if it's defective.

8. Is the P14CD code on a 2015 Silverado a common issue?

While not extremely common, this code can occur due to wear and tear on the FPCM or its wiring over time.

9. Can I drive my 2015 Chevrolet Silverado with the P14CD code?

Driving with this code is not recommended as it may lead to engine stalling or further damage to the fuel system.

10. Does the P14CD code require reprogramming the Fuel Pump Driver Control Module?

In some cases, reprogramming or updating the software in the FPCM may be necessary to resolve the issue.

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