P11FF 2014 GMC Sierra Code - Fuel Pump Command Signal 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, Fuel Pump harness is open or shorted, Fuel Pump 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
- P11FF 2014 GMC Sierra indicates Fuel Pump Command Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Fuel Pump, Fuel Pump harness is open or shorted, Fuel Pump 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.
Code P11FF 2014 GMC Sierra Description
What are the Possible Causes of the DTC P11FF 2014 GMC Sierra?
- Faulty Fuel Pump
- Fuel Pump harness is open or shorted
- Fuel Pump circuit poor electrical connection
How to Fix the DTC P11FF 2014 GMC Sierra?
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 P11FF 2014 GMC Sierra 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 P11FF 2014 GMC Sierra code?
Need more information on how to fix the P11FF 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P11FF 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P11FF 2014 GMC Sierra Code
1. What does the OBDII code P11FF mean on a 2014 GMC Sierra?
P11FF indicates that the Fuel Pump Command Signal Message Counter is incorrect, meaning there’s a communication issue between the fuel pump control module and the engine control module (ECM).
2. What are the common symptoms of code P11FF in a 2014 GMC Sierra?
Symptoms may include difficulty starting the engine, reduced engine performance, stalling, or the illumination of the check engine light.
3. What causes the P11FF code to appear on a 2014 GMC Sierra?
Common causes include a faulty fuel pump control module, wiring or connector issues, or a malfunctioning ECM.
4. Can a loose connection trigger the P11FF code?
Yes, loose or corroded wiring connections between the fuel pump control module and ECM can cause this code.
5. How do you diagnose the P11FF code on a 2014 GMC Sierra?
Diagnosis involves scanning for codes, inspecting the wiring and connectors, testing the fuel pump control module, and verifying communication with the ECM.
6. Can I drive my 2014 GMC Sierra with the P11FF code?
Driving with this code is not recommended, as it could lead to engine stalling or further damage to the fuel system.
7. How much does it cost to fix the P11FF code on a 2014 GMC Sierra?
Repair costs vary depending on the issue, but replacing the fuel pump control module typically costs $300-$600, including labor.
8. Is the P11FF code specific to GMC vehicles?
While the P11FF code is commonly associated with GMC vehicles, similar communication issues can occur in other brands with slightly different codes.
9. Can resetting the code fix the P11FF issue?
Resetting the code may clear the check engine light temporarily, but it won’t resolve the underlying issue causing the code.
10. What tools are needed to fix the P11FF code on a 2014 GMC Sierra?
You’ll need an OBDII scanner, a multimeter for electrical testing, and possibly specialized tools to replace the fuel pump control module.
Discuss the causes and fixes for P11FF 2014 GMC Sierra OBDII Code
Code P11FF 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
