AutoCodes – GMC – U2616 2014 GMC Sierra

U2616 2014 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 2014 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 336

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 2014 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 2014 GMC Sierra - Fuel Pump Driver Control Module Lost Communication With ECM - AutoCodes.com — U2616 2014 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 2014 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 2014 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 2014 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 2014 GMC Sierra code?

Need more information on how to fix the U2616 2014 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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code U2616 in a 2014 GMC Sierra?

- Common symptoms include the check engine light being illuminated, issues with the fuel pump operation, and potential drivability issues.

2. What can cause the OBDII code U2616 to trigger in a 2014 GMC Sierra?

- The code U2616 can be triggered when the Fuel Pump Driver Control Module loses communication with the Engine Control Module (ECM).

3. How can I diagnose the cause of the U2616 code in my 2014 GMC Sierra?

- Diagnosing the U2616 code may involve checking the wiring connections between the Fuel Pump Driver Control Module and the ECM, as well as verifying the module's functionality.

4. Can a faulty fuel pump driver control module cause the U2616 code in a 2014 GMC Sierra?

- Yes, a malfunctioning fuel pump driver control module can lead to a loss of communication with the ECM, triggering the U2616 trouble code.

5. What are some repair tips for resolving the U2616 code in a 2014 GMC Sierra?

- Repair tips may include checking and repairing any damaged wiring, replacing the fuel pump driver control module if necessary, and ensuring all connections are secure.

6. Is it safe to continue driving my 2014 GMC Sierra with the U2616 trouble code?

- It is not recommended to drive the vehicle with the U2616 code present, as it may lead to fuel pump issues and potential drivability problems.

7. Can resetting the trouble codes clear the U2616 code in a 2014 GMC Sierra?

- Resetting the trouble codes may temporarily clear the U2616 code, but if the underlying issue is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair the U2616 code in a 2014 GMC Sierra?

- The cost of repairing the U2616 code can vary depending on the specific issue, but it may involve replacing the fuel pump driver control module or addressing wiring issues.

9. Are there any recalls or technical service bulletins related to the U2616 code in a 2014 GMC Sierra?

- It is recommended to check with your local GMC dealership or online resources for any recalls or technical service bulletins related to the U2616 trouble code in your specific vehicle.

10. Can a DIY enthusiast fix the U2616 code issue in a 2014 GMC Sierra, or is it best left to professionals?

- While some DIY enthusiasts may be able to diagnose and repair the U2616 code, it is recommended to seek professional help, especially when dealing with complex electronic systems like the fuel pump driver control module.