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U2616 2017 GMC Sierra Code - Fuel Pump Driver Control Module Lost Communication With ECM

Quick Answer

The U2616 diagnostic trouble code (DTC) in a 2017 GMC Sierra indicates that the Fuel Pump Driver Control Module has lost communication with the Engine Control Module (ECM). Common causes include Faulty Fuel Pump Driver Control Module, Wiring or connector issues between the Fuel Pump Driver Control Module and ECM, ECM software malfunction. 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
U2616 2017 GMC Sierra indicates Fuel Pump Driver Control Module Lost Communication With ECM.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module, Wiring or connector issues between the Fuel Pump Driver Control Module and ECM, ECM software malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code U2616 2017 GMC Sierra Description

The U2616 diagnostic trouble code (DTC) in a 2017 GMC Sierra indicates that the Fuel Pump Driver Control Module has lost communication with the Engine Control Module (ECM). The Fuel Pump Driver Control Module is responsible for controlling the fuel pump operation, ensuring the correct fuel pressure is maintained, and communicating with the ECM to provide necessary data. When communication between these two modules is lost, it can lead to various issues affecting the vehicle's performance.

OBDII Code U2616 2017 GMC Sierra - Fuel Pump Driver Control Module Lost Communication With ECM
U2616 2017 GMC Sierra Code - Fuel Pump Driver Control Module Lost Communication With ECM

Common Causes of U2616 2017 GMC Sierra

  1. Faulty Fuel Pump Driver Control Module
  2. Wiring or connector issues between the Fuel Pump Driver Control Module and ECM
  3. ECM software malfunction
  4. Electrical interference or short circuits
  5. Vehicle's age and wear leading to component failure

Symptoms of U2616 2017 GMC Sierra

  1. Check engine light illuminated
  2. Engine stalling or hesitation
  3. Difficulty starting the engine
  4. Decreased fuel efficiency
  5. Rough idling or misfires

How to Fix U2616 2017 GMC Sierra

  1. Begin by performing a thorough diagnosis with a professional scan tool to confirm the U2616 code and identify the specific cause.
  2. Inspect the wiring and connectors between the Fuel Pump Driver Control Module and ECM for any signs of damage or corrosion. Repair or replace as needed.
  3. Test the Fuel Pump Driver Control Module for proper operation and replace if found faulty.
  4. Check and update the ECM software if required to ensure proper communication between modules.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix U2616 2017 GMC Sierra

The typical repair costs for addressing the Fuel Pump Driver Control Module Lost Communication With ECM issue can range from $200 to $600, depending on the specific cause of the problem and the cost of parts and labor in your area. It's advisable to consult with a trusted mechanic or auto repair shop for an accurate estimate based on your vehicle's make and model. Keep in mind that additional diagnosis time and labor rates may apply, so it's essential to factor those into your budget.

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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 U2616 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code U2616 in a 2017 GMC Sierra?

The common symptoms of code U2616 in a 2017 GMC Sierra include issues with the fuel pump operation, stalling or difficulty starting the vehicle, and possibly a check engine light on the dashboard.

2. What does the OBDII code U2616 indicating "Fuel Pump Driver Control Module Lost Communication With ECM" mean?

The code U2616 means that there is a communication problem between the fuel pump driver control module and the engine control module (ECM) in the 2017 GMC Sierra, affecting the fuel pump operation.

3. What are the possible causes of OBDII code U2616 in a 2017 GMC Sierra?

Possible causes of code U2616 in a 2017 GMC Sierra include wiring issues, faulty fuel pump driver control module, a malfunctioning ECM, or a poor connection between the modules.

4. How can I diagnose the OBDII code U2616 in my 2017 GMC Sierra?

Diagnosing code U2616 involves checking the wiring connections between the fuel pump driver control module and ECM, testing the modules for faults, and ensuring proper communication between them using diagnostic tools.

5. Can I still drive my 2017 GMC Sierra with OBDII code U2616 present?

It is not recommended to drive your 2017 GMC Sierra with code U2616 present, as it can lead to fuel pump issues and potential stalling, causing unsafe driving conditions.

6. How can I repair OBDII code U2616 in my 2017 GMC Sierra?

Repairing code U2616 may involve fixing any wiring issues, replacing the fuel pump driver control module or ECM if faulty, and ensuring proper communication between the modules to clear the code.

7. Is it safe to reset the OBDII code U2616 in my 2017 GMC Sierra without fixing the underlying issue?

Resetting the code without addressing the underlying issue may temporarily clear the check engine light, but the problem will likely reoccur, potentially leading to further vehicle issues.

8. Can a DIY enthusiast fix OBDII code U2616 in a 2017 GMC Sierra?

While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing code U2616 may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

9. How much does it cost to repair OBDII code U2616 in a 2017 GMC Sierra?

The cost of repairing code U2616 in a 2017 GMC Sierra can vary depending on the specific issue, parts needed, and labor costs, so it is advisable to get a diagnostic assessment from a mechanic for an accurate estimate.

10. Can preventive maintenance help prevent OBDII code U2616 in a 2017 GMC Sierra?

Regular maintenance, such as checking and maintaining proper wiring connections, can help prevent potential communication issues between the fuel pump driver control module and ECM, reducing the likelihood of code U2616 occurring.

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