AutoCodes – Chevrolet – U2616 Chevrolet

U2616 Chevrolet 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 Chevrolet 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 4,164

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 Chevrolet 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 Chevrolet - Fuel Pump Driver Control Module Lost Communication With ECM - AutoCodes.com — U2616 Chevrolet Code - Fuel Pump Driver Control Module Lost Communication With ECM

What does this mean?

What are the Possible Causes of the DTC U2616 Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

Need more information on how to fix the U2616 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2616 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

U2616 2014 Chevrolet Silverado — Fuel Pump Driver Control Module Lost Communication With ECM
U2616 2015 Chevrolet Silverado — Fuel Pump Driver Control Module Lost Communication With ECM
U2616 2016 Chevrolet Silverado — Fuel Pump Driver Control Module Lost Communication With ECM
U2616 2017 Chevrolet Silverado — Fuel Pump Driver Control Module Lost Communication With ECM
U2616 2018 Chevrolet Silverado — Fuel Pump Driver Control Module Lost Communication With ECM

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 Chevrolet Code

1. What are the common symptoms of OBDII code U2616 in a Chevrolet related to the Fuel Pump Driver Control Module communication loss with the ECM?

The common symptoms include issues with starting the vehicle, stalling, poor engine performance, and in some cases, the fuel pump not engaging.

2. What could be the potential causes of OBDII code U2616 in a Chevrolet indicating a communication problem between the Fuel Pump Driver Control Module and the ECM?

Potential causes may include faulty wiring or connectors between the modules, a malfunctioning Fuel Pump Driver Control Module, a damaged ECM, or a communication network issue.

3. How can I diagnose the OBDII code U2616 in a Chevrolet related to the Fuel Pump Driver Control Module losing communication with the ECM?

Diagnosis typically involves using a diagnostic scanner to retrieve the trouble codes, checking the wiring and connectors for any damage, testing the modules for proper functionality, and verifying the communication network integrity.

4. What are some repair tips for resolving OBDII code U2616 in a Chevrolet indicating a communication problem between the Fuel Pump Driver Control Module and the ECM?

Repair tips may include repairing or replacing damaged wiring or connectors, testing and potentially replacing the Fuel Pump Driver Control Module or ECM if faulty, and ensuring proper communication network operation.

5. Can OBDII code U2616 in a Chevrolet related to the Fuel Pump Driver Control Module communication loss with the ECM cause any long-term damage to the vehicle?

Continued driving with this issue may lead to fuel delivery problems, potential engine misfires, and ultimately, further damage to engine components if left unresolved for an extended period.

6. Is it safe to drive a Chevrolet experiencing OBDII code U2616 due to the Fuel Pump Driver Control Module communication issue?

It is not recommended to drive the vehicle with this issue as it can lead to unpredictable engine behavior and potential stalling, which can compromise safety on the road.

7. How can a professional mechanic help in resolving OBDII code U2616 in a Chevrolet related to the Fuel Pump Driver Control Module communication problem?

A professional mechanic can conduct a thorough diagnosis, utilize specialized tools for troubleshooting, have access to technical service bulletins for known issues, and efficiently repair or replace faulty components to resolve the problem effectively.

8. Are there any recalls or technical service bulletins issued by Chevrolet regarding OBDII code U2616 and the Fuel Pump Driver Control Module communication issue?

It's recommended to check with Chevrolet dealerships or online resources for any recalls or technical service bulletins related to this specific OBDII code to see if there are known solutions or repair guidelines provided by the manufacturer.

9. How much can I expect to pay for repairing OBDII code U2616 in a Chevrolet caused by the Fuel Pump Driver Control Module losing communication with the ECM?

The cost of repair can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates in your area. It's advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

10. Can resetting the OBDII code U2616 in a Chevrolet related to the Fuel Pump Driver Control Module communication loss with the ECM temporarily resolve the issue?

Resetting the code may temporarily clear the warning light, but if the underlying problem causing the code is not addressed, it is likely to reoccur. It's crucial to diagnose and repair the root cause of the communication problem to prevent further issues.