P11FF GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P11FF GMC?
- Faulty Fuel Pump
- Fuel Pump harness is open or shorted
- Fuel Pump circuit poor electrical connection
How to Fix the DTC P11FF GMC?
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 GMC 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.
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Information for Specific GMC Models
- P11FF 2014 GMC Sierra — Fuel Pump Command Signal Message Counter Incorrect
- P11FF 2015 GMC Sierra — Fuel Pump Command Signal Message Counter Incorrect
- P11FF 2016 GMC Sierra — Fuel Pump Command Signal Message Counter Incorrect
- P11FF 2017 GMC Sierra — Fuel Pump Command Signal Message Counter Incorrect
- P11FF 2018 GMC Sierra — Fuel Pump Command Signal Message Counter Incorrect
Frequently Asked Questions about P11FF GMC Code
1. What are the common symptoms of OBDII code P11FF in a GMC vehicle?
The common symptoms of OBDII code P11FF in a GMC vehicle may include engine hesitation, stalling, rough idling, and difficulty starting the engine.
2. What does the OBDII code P11FF GMC indicate?
OBDII code P11FF in a GMC vehicle indicates that the Fuel Pump Command Signal Message Counter is incorrect, suggesting a potential issue with the fuel pump command signal communication.
3. What are the possible causes of OBDII code P11FF in a GMC vehicle?
Possible causes of OBDII code P11FF in a GMC vehicle may include a faulty fuel pump, damaged wiring or connectors in the fuel pump circuit, a defective fuel pump control module, or a communication error between the fuel pump and the vehicle's ECM.
4. How can I diagnose OBDII code P11FF in my GMC vehicle?
Diagnosing OBDII code P11FF in a GMC vehicle typically involves using a diagnostic scanner to retrieve the trouble codes, inspecting the fuel pump and its connections, testing the fuel pump control module, and checking for any wiring issues in the fuel pump circuit.
5. Can I continue driving my GMC vehicle with OBDII code P11FF present?
It is not recommended to continue driving your GMC vehicle with OBDII code P11FF present, as it may lead to engine performance issues and potential damage to the fuel pump system. It is advisable to address the issue promptly.
6. How can I repair OBDII code P11FF in my GMC vehicle?
Repairing OBDII code P11FF in a GMC vehicle may involve replacing a faulty fuel pump, repairing damaged wiring or connectors, replacing the fuel pump control module, or addressing any communication errors between the fuel pump and the ECM.
7. Is it possible to reset OBDII code P11FF in a GMC vehicle?
Resetting OBDII code P11FF in a GMC vehicle can be done using a diagnostic scanner to clear the trouble codes after the underlying issue has been identified and resolved. However, simply clearing the code without addressing the root cause may lead to it reoccurring.
8. How urgent is it to address OBDII code P11FF in a GMC vehicle?
It is recommended to address OBDII code P11FF in a GMC vehicle as soon as possible to prevent potential engine performance issues, stalling, or other related problems that may arise from a malfunctioning fuel pump system.
9. Can a DIY enthusiast fix OBDII code P11FF in a GMC vehicle?
DIY enthusiasts with automotive repair experience may be able to address OBDII code P11FF in a GMC vehicle by following diagnostic procedures, checking components, and making necessary repairs. However, complex issues or electrical work may require professional assistance.
10. How can I prevent OBDII code P11FF from occurring in my GMC vehicle?
To help prevent OBDII code P11FF from occurring in your GMC vehicle, it is advisable to perform regular maintenance on the fuel pump system, inspect wiring and connectors for damage, and address any fuel pump issues promptly to ensure proper communication with the ECM.
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