AutoCodes – Cadillac – P14D6 Cadillac

P14D6 Cadillac Code - Fuel Pump Driver Control Module Configuration Command Signal 5 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: P14D6 Cadillac indicates Fuel Pump Driver Control Module Configuration Command Signal 5 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 318

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 P14D6 Cadillac 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 5 Message Counter is Incorrect.

OBDII Code P14D6 Cadillac - Fuel Pump Driver Control Module Configuration Command Signal 5 Message Counter Incorrect - AutoCodes.com — P14D6 Cadillac Code - Fuel Pump Driver Control Module Configuration Command Signal 5 Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P14D6 Cadillac?

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 P14D6 Cadillac?

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 P14D6 Cadillac 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 P14D6 Cadillac code?

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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 P14D6 Cadillac Code

1. What does the OBDII code P14D6 mean on a Cadillac?

P14D6 indicates an issue with the Fuel Pump Driver Control Module (FPCM), specifically that the Configuration Command Signal 5 Message Counter is incorrect or inconsistent.

2. What are the common symptoms of the P14D6 code?

Symptoms may include difficulty starting the engine, reduced fuel efficiency, engine misfires, or the vehicle going into limp mode.

3. What causes the P14D6 code to appear?

The code is typically caused by a malfunction in the Fuel Pump Driver Control Module, wiring issues, corrupted software, or a communication error between the FPCM and the Engine Control Module (ECM).

4. Can a faulty fuel pump trigger the P14D6 code?

No, a faulty fuel pump itself does not directly trigger P14D6, but issues with the Fuel Pump Driver Control Module, which manages the pump, can cause the code.

5. How is the P14D6 code diagnosed?

A technician will use a diagnostic scanner to check for related codes, inspect the wiring and connectors to the Fuel Pump Driver Control Module, and verify the communication signals between the FPCM and ECM.

6. Is the P14D6 code serious?

Yes, it can be serious as it may lead to unpredictable fuel delivery, engine performance issues, or a complete inability to start the vehicle.

7. Can I drive with the P14D6 code on my Cadillac?

Itâ€™s not recommended to drive with the P14D6 code active, as it can lead to further engine or fuel system damage and unexpected stalling.

8. How is the P14D6 code fixed?

Common fixes include reprogramming or replacing the Fuel Pump Driver Control Module, repairing damaged wiring, or updating the vehicleâ€™s ECM software.

9. How much does it cost to repair the P14D6 code?

Repair costs vary, but replacing the Fuel Pump Driver Control Module typically ranges between $200 and $600, excluding diagnostic fees.

10. Can a software update resolve the P14D6 code?

In some cases, a software update for the Fuel Pump Driver Control Module or ECM may resolve the issue if itâ€™s caused by a communication error or incorrect programming.