AutoCodesGMC – P0611 2016 GMC Sierra

P0611 2016 GMC Sierra Code - Fuel Injector Control Module Performance

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Faulty Fuel Injector Control Module, Fuel Injector Control Module harness is open or shorted, Fuel Injector Control Module 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
P0611 2016 GMC Sierra indicates Fuel Injector Control Module Performance.
Common causes
Common causes include Faulty Fuel Injector Control Module, Fuel Injector Control Module harness is open or shorted, Fuel Injector Control Module 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 411
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 04, 2022
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Code P0611 2016 GMC Sierra Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Diagnostic Trouble Code (DTC) will be set when the Fuel Injector Control Module detects a system voltage below or above a threshold.
OBDII Code P0611 2016 GMC Sierra - Fuel Injector Control Module Performance - AutoCodes.com
P0611 2016 GMC Sierra Code - Fuel Injector Control Module Performance

What are the Possible Causes of the DTC P0611 2016 GMC Sierra?

  • Faulty Fuel Injector Control Module
  • Fuel Injector Control Module harness is open or shorted
  • Fuel Injector Control Module circuit poor electrical connection

How to Fix the DTC P0611 2016 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 P0611 2016 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 P0611 2016 GMC Sierra code?

Need more information on how to fix the P0611 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0611 2016 GMC Sierra Code

1. What does the OBDII code P0611 mean on a 2016 GMC Sierra?

P0611 indicates a performance issue with the Fuel Injector Control Module (FICM), which manages the operation of the fuel injectors.

2. What are the common symptoms of the P0611 code in a 2016 GMC Sierra?

Symptoms may include engine misfires, rough idling, reduced power, difficulty starting the engine, or the Check Engine Light being illuminated.

3. What causes the P0611 code to appear on a 2016 GMC Sierra?

Common causes include a faulty Fuel Injector Control Module, wiring issues such as damaged or corroded connections, or a software glitch in the module.

4. Can driving with the P0611 code cause further damage?

Yes, prolonged driving with this code can lead to poor engine performance, reduced fuel efficiency, and potential damage to the fuel injectors or engine.

5. How do you diagnose the P0611 code on a 2016 GMC Sierra?

Diagnosis typically involves scanning the vehicle with an OBDII scanner, inspecting the FICM and associated wiring for damage, and testing the module for proper voltage and communication.

6. How is the P0611 code fixed on a 2016 GMC Sierra?

Repairs may include replacing or reprogramming the Fuel Injector Control Module, repairing damaged wiring or connectors, or clearing the code after the issue is resolved.

7. Can the P0611 code be caused by a dead battery?

Yes, a weak or dead battery can cause voltage irregularities that may trigger the P0611 code, as the FICM requires consistent electrical power to function properly.

8. Does the P0611 code always mean the Fuel Injector Control Module is bad?

No, the issue could also stem from poor wiring connections, corroded terminals, or a software issue rather than a defective FICM.

9. How much does it cost to repair the P0611 code on a 2016 GMC Sierra?

Repair costs can vary widely, from $150 to $1,000 or more, depending on whether the FICM needs reprogramming, repair, or replacement.

10. Can a software update resolve the P0611 code on a 2016 GMC Sierra?

In some cases, a software update or reflash of the Fuel Injector Control Module can address the issue if it’s caused by a programming glitch.

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