P14D4 2016 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 2016 GMC Sierra indicates that the Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter is incorrect. Common causes include Faulty fuel pump driver control module, Wiring or connection issues between the fuel pump driver control module and ECM, ECM software malfunction. 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 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 or connection issues between the fuel pump driver control module and ECM, ECM software malfunction.
- 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 P14D4 2016 GMC Sierra Description
The P14D4 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter is incorrect. This code specifically relates to a communication error between the fuel pump driver control module and the vehicle's engine control module (ECM). The fuel pump driver control module is responsible for regulating the fuel pump's operation, ensuring the correct fuel pressure is maintained for optimal engine performance.
Common Causes of P14D4 2016 GMC Sierra
- Faulty fuel pump driver control module
- Wiring or connection issues between the fuel pump driver control module and ECM
- ECM software malfunction
- Electrical system issues
- Corrosion or damage to connectors or terminals
Symptoms of P14D4 2016 GMC Sierra
- Engine misfires or hesitation during acceleration
- Rough idling or stalling
- Reduced fuel efficiency
- Check Engine Light illuminated
- Difficulty starting the vehicle
How to Fix P14D4 2016 GMC Sierra
- Begin by conducting a thorough inspection of the wiring and connectors between the fuel pump driver control module and ECM. Repair or replace any damaged wires or connectors.
- Test the fuel pump driver control module for proper functionality. If it is found to be faulty, replace it with a new unit.
- Check and update the ECM software to ensure compatibility with the fuel pump driver control module.
- Clear the DTC and reset the ECM to see if the code reoccurs after repairs.
- Conduct a road test to verify that the issue has been resolved and that the vehicle is operating correctly.
Cost to Fix P14D4 2016 GMC Sierra
The typical repair costs for addressing a P14D4 code on a 2016 GMC Sierra can range from $200 to $600, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also impact the overall repair costs. It is advisable to consult with a trusted mechanic or repair shop for a more accurate estimate based on your specific circumstances.
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Frequently Asked Questions about P14D4 2016 GMC Sierra Code
1. What does the OBDII code P14D4 mean on a 2016 GMC Sierra?
The code 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 2016 GMC Sierra?
Symptoms may include difficulty starting the engine, reduced fuel efficiency, a check engine light, or erratic engine performance.
3. What causes the P14D4 code to appear on a 2016 GMC Sierra?
Common causes include a malfunctioning Fuel Pump Driver Control Module, wiring issues, communication errors between the module and the ECM, or a failed software update.
4. Can I drive my 2016 GMC Sierra with the P14D4 code active?
Driving with this code is not recommended as it may lead to fuel delivery problems and engine performance issues, potentially causing further damage.
5. How do you diagnose the P14D4 code on a 2016 GMC Sierra?
A professional technician will typically use a scan tool to check for communication faults, inspect the wiring and connectors, and test the Fuel Pump Driver Control Module for proper operation.
6. What repairs can fix the P14D4 code on a 2016 GMC Sierra?
Repairs may include reprogramming or replacing the Fuel Pump Driver Control Module, repairing damaged wiring or connectors, or updating the vehicle’s software.
7. Is the Fuel Pump Driver Control Module expensive to replace for a 2016 GMC Sierra?
The cost can vary, but replacing the module typically ranges from $300 to $800, including parts and labor.
8. Does the P14D4 code require a software update to fix?
In some cases, reprogramming or updating the software for the Fuel Pump Driver Control Module may resolve the issue.
9. Can a loose or corroded connector cause the P14D4 code on a 2016 GMC Sierra?
Yes, loose or corroded connectors in the wiring to the Fuel Pump Driver Control Module can disrupt communication and trigger this code.
10. How can I prevent the P14D4 code from recurring?
Ensure regular maintenance, check wiring and connections for corrosion or damage, and address software updates promptly to prevent communication errors with the module.
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