Engine-CodesGMC – P14CE 2018 GMC Sierra

P14CE 2018 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Status Signal Message Counter Incorrect

Quick Answer

The diagnostic trouble code P14CE for a 2018 GMC Sierra indicates a problem with the Fuel Pump Driver Control Module Configuration Status Signal Message Counter being incorrect. Common causes include Faulty fuel pump driver control module, Wiring issues or loose connections in the module circuit, Power supply problems to the module. 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
P14CE 2018 GMC Sierra indicates Fuel Pump Driver Control Module Configuration Status Signal Message Counter Incorrect.
Common causes
Common causes include Faulty fuel pump driver control module, Wiring issues or loose connections in the module circuit, Power supply problems to the module.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P14CE 2018 GMC Sierra Description

The diagnostic trouble code P14CE for a 2018 GMC Sierra indicates a problem with the Fuel Pump Driver Control Module Configuration Status Signal 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 message counter within the module is not matching the expected value, indicating a communication issue or a fault in the module itself.

OBDII Code P14CE 2018 GMC Sierra - Fuel Pump Driver Control Module Configuration Status Signal Message Counter Incorrect
P14CE 2018 GMC Sierra Code - Fuel Pump Driver Control Module Configuration Status Signal Message Counter Incorrect

Common Causes of P14CE 2018 GMC Sierra

  1. Faulty fuel pump driver control module.
  2. Wiring issues or loose connections in the module circuit.
  3. Power supply problems to the module.
  4. Communication errors between the module and other vehicle systems.
  5. Software glitches or programming errors in the module.

Symptoms of P14CE 2018 GMC Sierra

  1. Engine misfires or hesitation during acceleration.
  2. Difficulty starting the vehicle or frequent stalling.
  3. Decreased fuel efficiency.
  4. Illumination of the check engine light.
  5. Rough idling or uneven engine performance.

How to Fix P14CE 2018 GMC Sierra

  1. Diagnose the issue using a scan tool to verify the P14CE code and identify the specific cause.
  2. Inspect the wiring and connections related to the fuel pump driver control module for any damage or corrosion.
  3. Test the power supply to the module to ensure it is functioning correctly.
  4. Check for any communication errors between the module and other vehicle systems.
  5. Replace the fuel pump driver control module if it is found to be faulty, and reprogram it as necessary.

Cost to Fix P14CE 2018 GMC Sierra

The typical repair costs for addressing a P14CE code in a 2018 GMC Sierra can vary depending on the specific cause of the issue. Replacement of the fuel pump driver control module and related repairs may range from $200 to $600, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence the final repair costs. It's recommended to consult with a professional mechanic for a more accurate estimate based on the individual circumstances.

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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 P14CE 2018 GMC Sierra Code

1. What does the OBDII code P14CE mean on a 2018 GMC Sierra?

P14CE indicates an issue where the Fuel Pump Driver Control Module (FPCM) is detecting an incorrect configuration status signal message counter, typically related to communication errors.

2. What are the common symptoms of code P14CE in a 2018 GMC Sierra?

Symptoms may include engine stalling, difficulty starting, reduced performance, or the Check Engine Light being illuminated.

3. What causes the P14CE code to appear on a 2018 GMC Sierra?

Common causes include a software issue in the FPCM, faulty wiring or connectors, a malfunctioning FPCM, or a fault in the communication system.

4. How do you diagnose code P14CE in a 2018 GMC Sierra?

Diagnosis involves scanning for stored codes, inspecting FPCM wiring and connectors, checking for software updates, and testing module communication with a diagnostic tool.

5. Can a faulty fuel pump cause the P14CE code on a 2018 GMC Sierra?

A faulty fuel pump is unlikely to cause this specific code, as P14CE relates to the FPCM communication rather than the fuel pump itself.

6. How do you fix the P14CE code on a 2018 GMC Sierra?

Repairs may include updating the FPCM software, repairing or replacing damaged wiring, or replacing the FPCM if it is defective.

7. Is it safe to drive a 2018 GMC Sierra with the P14CE code?

Driving with this code may lead to performance issues or stalling, so it is recommended to address the issue promptly to avoid potential safety risks.

8. Does the P14CE code require FPCM replacement in all cases?

No, the FPCM does not always need replacement. The issue could be resolved with software updates or wiring repairs.

9. Can a dead battery trigger the P14CE code on a 2018 GMC Sierra?

A dead or weak battery could potentially cause communication errors, but it is not a common cause for this specific code.

10. How much does it cost to repair a P14CE code on a 2018 GMC Sierra?

Repair costs vary depending on the issue but typically range from $100 for a software update to $500 or more if the FPCM needs replacement.

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