P11FF 2016 Chevrolet Silverado Code - Fuel Pump Command Signal Message Counter Incorrect
Quick Answer
The P11FF diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Fuel Pump Command Signal Message Counter is Incorrect. Common causes include Faulty fuel pump relay or wiring connections, ECM software or hardware issues, Malfunctioning fuel pump control module. 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 2016 Chevrolet Silverado indicates Fuel Pump Command Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty fuel pump relay or wiring connections, ECM software or hardware issues, Malfunctioning fuel pump control module.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P11FF 2016 Chevrolet Silverado Description
The P11FF diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Fuel Pump Command Signal Message Counter is Incorrect. This means that the Engine Control Module (ECM) has detected an issue with the signal communication related to the fuel pump command. The fuel pump is a crucial component of the vehicle's fuel system, responsible for delivering fuel from the tank to the engine. The ECM sends signals to the fuel pump to regulate its operation, ensuring the correct amount of fuel is delivered at all times.
Common Causes of P11FF 2016 Chevrolet Silverado
- Faulty fuel pump relay or wiring connections.
- ECM software or hardware issues.
- Malfunctioning fuel pump control module.
- Poor electrical connections or corrosion in the wiring harness.
- Fuel pump failure or blockage in the fuel system.
Symptoms of P11FF 2016 Chevrolet Silverado
- Engine misfires or hesitation during acceleration.
- Difficulty starting the engine or frequent stalling.
- Reduced fuel efficiency and increased fuel consumption.
- Illumination of the check engine light on the dashboard.
- Rough idling or uneven engine operation.
How to Fix P11FF 2016 Chevrolet Silverado
- Begin by conducting a thorough inspection of the fuel pump relay, wiring connections, and fuel pump control module. Ensure all connections are secure and free of corrosion.
- Use a diagnostic scan tool to check for any stored trouble codes and perform a fuel system test to verify the fuel pump's operation.
- If necessary, replace the fuel pump relay, control module, or fuel pump itself, depending on the identified issue.
- Clear the DTC from the ECM memory and perform a test drive to confirm that the issue has been resolved.
- Reset the ECM and monitor the vehicle's performance to ensure that the fuel pump command signal message counter remains within the correct parameters.
Cost to Fix P11FF 2016 Chevrolet Silverado
The typical repair costs for addressing a P11FF DTC on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a faulty fuel pump relay or control module may cost between $100 and $300, while replacing the fuel pump itself can range from $300 to $800, including parts and labor. Diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It is advisable to consult with a certified mechanic or dealership to obtain a more accurate estimate based on the specific circumstances of the vehicle.
Need more information about the P11FF 2016 Chevrolet Silverado code?
Need more information on how to fix the P11FF 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P11FF 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P11FF 2016 Chevrolet Silverado Code
1. What does the OBDII code P11FF mean on a 2016 Chevrolet Silverado?
P11FF indicates that the fuel pump command signal message counter is incorrect, meaning the engine control module (ECM) is detecting irregularities in the communication between the fuel pump control module and the ECM.
2. What are the common symptoms of a P11FF code in a 2016 Chevrolet Silverado?
Symptoms may include difficulty starting the engine, reduced engine performance, stalling, or an illuminated check engine light.
3. What causes the P11FF code on a 2016 Chevrolet Silverado?
Common causes include a faulty fuel pump control module, wiring or connector issues, or software glitches in the ECM or fuel pump control module.
4. Can a bad fuel pump cause the P11FF code?
A bad fuel pump typically doesn't cause this specific code, but communication errors related to the fuel pump control module may lead to the P11FF code.
5. How do you diagnose the P11FF code on a 2016 Chevrolet Silverado?
Diagnosis involves using a scan tool to check for additional codes, inspecting wiring and connectors for damage, and testing the fuel pump control module and ECM for proper communication.
6. Can you drive with a P11FF code on a 2016 Chevrolet Silverado?
Driving with this code is not recommended as it could lead to fuel delivery issues, poor performance, or even engine stalling.
7. How is the P11FF code fixed on a 2016 Chevrolet Silverado?
Repairs may include replacing a faulty fuel pump control module, repairing or replacing damaged wiring, or updating the ECM or fuel pump control module software.
8. Is the P11FF code covered under warranty for a 2016 Chevrolet Silverado?
It may be covered under the powertrain or emissions warranty, depending on the vehicle's mileage and warranty terms. Check with your dealership.
9. How much does it cost to repair the P11FF code on a 2016 Chevrolet Silverado?
Repair costs can range from $100 to $500 or more, depending on whether the issue is a simple wiring repair or requires module replacement.
10. Can a software update fix the P11FF code on a 2016 Chevrolet Silverado?
Yes, if the issue is caused by a software glitch, a reprogramming or update of the ECM or fuel pump control module may resolve the code.
Discuss the causes and fixes for P11FF 2016 Chevrolet Silverado OBDII Code
Code P11FF 2016 Chevrolet Silverado 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.