Engine-Codes.com
Engine-Codes – Chevrolet – P14D4 2016 Chevrolet Silverado

P14D4 2016 Chevrolet Silverado Code - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

Quick Answer

The P14D4 diagnostic trouble code (DTC) indicates that the Fuel Pump Driver Control Module (FPDCM) has detected an inconsistency in the Configuration Command Signal 2 message counter. Common causes include Faulty Fuel Pump Driver Control Module (FPDCM), Damaged or corroded wiring or connectors in the fuel pump circuit, Software issues or glitches in the engine control module (ECM). 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 Chevrolet Silverado indicates Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module (FPDCM), Damaged or corroded wiring or connectors in the fuel pump circuit, Software issues or glitches in the engine control module (ECM).
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 15, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P14D4 2016 Chevrolet Silverado Description

The P14D4 diagnostic trouble code (DTC) indicates that the Fuel Pump Driver Control Module (FPDCM) has detected an inconsistency in the Configuration Command Signal 2 message counter. This signal is crucial for the proper operation of the fuel pump system, as it communicates the operational status and configuration settings between the engine control module (ECM) and the FPDCM. When the message counter is incorrect, it suggests that the ECM is not receiving the expected number of messages from the FPDCM, which can lead to improper fuel pump operation.

OBDII Code P14D4 2016 Chevrolet Silverado - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect
P14D4 2016 Chevrolet Silverado Code - Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

Common Causes of P14D4 2016 Chevrolet Silverado

  1. Faulty Fuel Pump Driver Control Module (FPDCM).
  2. Damaged or corroded wiring or connectors in the fuel pump circuit.
  3. Software issues or glitches in the engine control module (ECM).
  4. Low voltage supply to the FPDCM due to battery or alternator problems.
  5. Faulty fuel pump or fuel delivery system components.

Symptoms of P14D4 2016 Chevrolet Silverado

  1. Engine stalling or hesitation during acceleration.
  2. Difficulty starting the engine or prolonged cranking time.
  3. Rough idling or fluctuations in engine RPM.
  4. Decreased fuel efficiency or poor engine performance.
  5. Illuminated check engine light on the dashboard.

How to Fix P14D4 2016 Chevrolet Silverado

  1. Diagnostic Scan: Begin by using an OBD-II scanner to confirm the P14D4 code and check for any related codes that may provide additional context.
  2. Visual Inspection: Inspect the wiring and connectors associated with the FPDCM for signs of damage, corrosion, or loose connections. Repair or replace any faulty components as necessary.
  3. FPDCM Testing: Test the Fuel Pump Driver Control Module for proper operation. This may involve checking the power and ground circuits and ensuring the module is receiving the correct signals from the ECM.
  4. Software Update: If the FPDCM and wiring are in good condition, check for any available software updates for the ECM or FPDCM that may resolve communication issues.
  5. Fuel System Inspection: If the issue persists, inspect the entire fuel system, including the fuel pump and filter, to ensure they are functioning correctly and not contributing to the problem.

Cost to Fix P14D4 2016 Chevrolet Silverado

The cost to repair a P14D4 code can vary widely based on the specific diagnosis and repairs needed. On average, you might expect to pay between $200 and $800 for repairs. This estimate includes parts such as a new FPDCM (if needed), wiring repairs, and labor costs. Labor rates typically range from $80 to $150 per hour, depending on the location and type of repair shop. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer lower rates. It's advisable to check local repair shops for a more precise estimate tailored to your specific situation.

Need more information about the P14D4 2016 Chevrolet Silverado code?

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

Need Help with the Code?

Get the P14D4 2016 Chevrolet Silverado 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 Chevrolet Silverado Code

1. What does the OBDII code P14D4 mean on a 2016 Chevrolet Silverado?

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 the P14D4 code?

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

3. What causes the P14D4 code on a 2016 Chevrolet Silverado?

Common causes include a malfunctioning Fuel Pump Driver Control Module, wiring or connection issues, software glitches, or a fault in the Engine Control Module (ECM).

4. Can a faulty FPCM cause the P14D4 code?

Yes, a faulty or failing Fuel Pump Driver Control Module is a primary cause of the P14D4 code.

5. How do you diagnose the P14D4 code?

Diagnosis involves checking for related codes, inspecting FPCM wiring and connections, testing the module for proper operation, and ensuring the ECM software is up to date.

6. Can a software update fix the P14D4 code?

In some cases, updating the ECM or FPCM software can resolve the issue if it's caused by a programming error.

7. Is it safe to drive a 2016 Silverado with the P14D4 code?

Driving with this code may result in reduced performance or potential fuel delivery issues, so it’s best to address the problem promptly.

8. How is the P14D4 code repaired?

Repairs may include replacing the Fuel Pump Driver Control Module, repairing damaged wiring or connectors, or reprogramming the ECM or FPCM.

9. How much does it cost to fix the P14D4 code?

Repair costs can vary, but replacing the FPCM typically ranges from $300 to $600, including parts and labor.

10. Can I clear the P14D4 code without fixing the issue?

Clearing the code without addressing the underlying problem will likely cause it to return, as the fault persists.

Discuss the causes and fixes for P14D4 2016 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P14D4 2016 Chevrolet Silverado comments

No comments found for this page.