AutoCodes – GMC – U2616 2017 GMC Sierra

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

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine 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: U2616 2017 GMC Sierra indicates Fuel Pump Driver Control Module Lost Communication With ECM.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine 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 232

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 24, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2616 2017 GMC Sierra Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. The Diagnostic Trouble Code (DTC) will be set when a supervised periodic message that includes the transmitter device availability has not been received.

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

What does this mean?

What are the Possible Causes of the DTC U2616 2017 GMC Sierra?

Faulty Engine Control Module (ECM)
Engine Control Module harness is open or shorted
Engine Control Module circuit poor electrical connection
Faulty Fuel Pump Driver Control Module

How to Fix the DTC U2616 2017 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 U2616 2017 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 U2616 2017 GMC Sierra code?

Need more information on how to fix the U2616 2017 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 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.