P11FF 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC P11FF 2018 Chevrolet Silverado?
- Faulty Fuel Pump
- Fuel Pump harness is open or shorted
- Fuel Pump circuit poor electrical connection
How to Fix the DTC P11FF 2018 Chevrolet Silverado?
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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?
Need more information on how to fix the P11FF 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P11FF 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P11FF 2018 Chevrolet Silverado Code
1. What does the OBDII code P11FF mean on a 2018 Chevrolet Silverado?
The P11FF code indicates that the Fuel Pump Control Module (FPCM) has detected an incorrect message counter in the fuel pump command signal.
2. What are the common symptoms of code P11FF in a 2018 Chevrolet Silverado?
Symptoms may include reduced engine performance, difficulty starting the engine, a check engine light, or a loss of power.
3. What causes the P11FF code to appear on a Chevrolet Silverado?
Common causes include a faulty Fuel Pump Control Module (FPCM), wiring or connector issues, or a software glitch in the vehicle's control modules.
4. Can a faulty fuel pump cause the P11FF code in a 2018 Silverado?
While the fuel pump itself is not typically the cause, issues with the Fuel Pump Control Module or its communication may trigger the code.
5. How do you diagnose the P11FF code on a Chevrolet Silverado?
Diagnosis involves scanning for additional codes, inspecting the FPCM wiring and connectors, and verifying the communication signals with a diagnostic tool.
6. Is the P11FF code serious on a 2018 Chevrolet Silverado?
Yes, it can lead to drivability issues and potential engine damage if left unresolved, so it should be addressed promptly.
7. How can the P11FF code be fixed in a Chevrolet Silverado?
Repairs may include replacing or reprogramming the Fuel Pump Control Module, repairing damaged wiring, or updating the vehicle’s software.
8. Can clearing the P11FF code solve the issue permanently?
Clearing the code may work temporarily, but the underlying issue must be resolved to prevent the code from returning.
9. How much does it cost to fix a P11FF code on a 2018 Silverado?
Repair costs vary but may range from $150 to $600, depending on whether the FPCM needs replacement or reprogramming.
10. Can I drive my 2018 Chevrolet Silverado with the P11FF code?
While the vehicle may still be drivable, it is not recommended as it could lead to further performance issues or damage.
Discuss the causes and fixes for P11FF 2018 Chevrolet Silverado OBDII Code
Code P11FF 2018 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.
