AutoCodes – Chevrolet – P11FF 2014 Chevrolet Silverado

P11FF 2014 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 2014 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.

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Code Popularity 303

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 26, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P11FF 2014 Chevrolet Silverado Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Fuel Pump Command Signal Message Counter is Incorrect.

OBDII Code P11FF 2014 Chevrolet Silverado - Fuel Pump Command Signal Message Counter Incorrect - AutoCodes.com — P11FF 2014 Chevrolet Silverado Code - Fuel Pump Command Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P11FF 2014 Chevrolet Silverado?

Faulty Fuel Pump
Fuel Pump harness is open or shorted
Fuel Pump circuit poor electrical connection

How to Fix the DTC P11FF 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the P11FF 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P11FF 2014 Chevrolet Silverado Code

1. What does the OBDII code P11FF mean on a 2014 Chevrolet Silverado?

The P11FF code indicates that the fuel pump command signal message counter is incorrect, which may disrupt communication between the fuel pump control module and the engine control module.

2. What are the common symptoms of P11FF on a 2014 Chevrolet Silverado?

Symptoms may include difficulty starting the engine, reduced fuel efficiency, poor engine performance, or the check engine light illuminating.

3. What causes the P11FF code to appear?

The code can be caused by issues such as faulty wiring, poor electrical connections, a malfunctioning fuel pump control module, or a failure in the engine control module.

4. Can a bad fuel pump trigger the P11FF code?

A bad fuel pump itself typically wonâ€™t trigger this code; it is more likely caused by communication or signal issues between the fuel pump control module and the ECM.

5. How can I diagnose the P11FF code on my Silverado?

Start by inspecting the wiring and connections to the fuel pump control module, checking for corrosion or damage. Use a diagnostic scanner to monitor live data and verify signal integrity.

6. Is it safe to drive with the P11FF code active?

Driving with this code active could lead to fuel delivery issues, posing risks to engine performance and reliability. Itâ€™s best to address the issue promptly.

7. How do I fix the P11FF code on a 2014 Chevrolet Silverado?

Repairs may include cleaning or replacing corroded connectors, repairing damaged wiring, reprogramming the fuel pump control module, or replacing the module if necessary.

8. Does the P11FF code require fuel pump replacement?

Not always. This code is typically related to communication errors rather than a mechanical failure of the fuel pump itself.

9. Can software issues cause the P11FF code?

Yes, outdated or corrupted software in the fuel pump control module or ECM can cause communication errors, leading to this code.

10. How much does it cost to fix the P11FF code on a Silverado?

Repair costs can vary, but diagnosing and fixing wiring or connection issues may cost around $100-$300, while module replacement or reprogramming could cost $500-$800 or more.