AutoCodes – Chevrolet – U2605 Chevrolet

U2605 Chevrolet Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 3

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Hybrid/EV Battery Interface Control Module 3, Hybrid/EV Battery Interface Control Module 3 harness is open or shorted, Hybrid/EV Battery Interface Control Module 3 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: U2605 Chevrolet indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 3.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module 3, Hybrid/EV Battery Interface Control Module 3 harness is open or shorted, Hybrid/EV Battery Interface Control Module 3 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 877

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 Jun 18, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2605 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 scan tool does not communicate the Hybrid/EV Battery Interface Control Modules 3 on Battery Energy Control Module dedicated bus.
The Diagnostic Trouble Code (DTC) will set when there is no temperature report message from Hybrid/EV Battery Interface Control Modules 3 to Battery Energy Control Module within 4s.

OBDII Code U2605 Chevrolet - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 3 - AutoCodes.com — U2605 Chevrolet Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 3

What does this mean?

What are the Possible Causes of the DTC U2605 Chevrolet?

Faulty Hybrid/EV Battery Interface Control Module 3
Hybrid/EV Battery Interface Control Module 3 harness is open or shorted
Hybrid/EV Battery Interface Control Module 3 circuit poor electrical connection
Faulty Battery Energy Control Module

How to Fix the DTC U2605 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 U2605 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.

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Need more information on how to fix the U2605 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2605 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 U2605 Chevrolet Code

1. What are the common symptoms of OBDII code U2605 in a Chevrolet related to the Battery Energy Control Module and Hybrid/EV Battery Interface Control Module communication issue?

- Common symptoms include loss of power, reduced fuel efficiency, warning lights (such as the check engine light or hybrid system warning), and potential difficulty starting the vehicle.

2. What are some possible causes for the U2605 code indicating a communication problem between the Battery Energy Control Module and Hybrid/EV Battery Interface Control Module in a Chevrolet?

- Possible causes may include loose or damaged wiring connections, a faulty Battery Energy Control Module, a malfunctioning Hybrid/EV Battery Interface Control Module, or software issues.

3. How can I diagnose the U2605 code in my Chevrolet related to the lost communication between the Battery Energy Control Module and Hybrid/EV Battery Interface Control Module?

- Diagnosing the code typically involves using a professional OBDII scanner to retrieve the specific fault codes, checking the wiring connections for any damage or looseness, and inspecting the control modules for any signs of malfunction.

4. Are there any repair tips for fixing the U2605 code in a Chevrolet caused by the communication loss between the Battery Energy Control Module and Hybrid/EV Battery Interface Control Module?

- Repair tips may include repairing or replacing any damaged wiring connections, resetting the control modules, updating software if applicable, or replacing the faulty control module(s) if necessary.

5. Can driving with the U2605 code present in a Chevrolet be harmful to the vehicle?

- Continuing to drive with the U2605 code may lead to further damage to the hybrid system components or affect the overall performance of the vehicle. It is recommended to address the issue promptly to prevent any potential issues.

6. Is it safe to reset the U2605 code in a Chevrolet using an OBDII scanner?

- While resetting the code may temporarily turn off the warning lights, it is essential to diagnose and repair the underlying issue causing the code to prevent it from reoccurring and potentially causing more significant problems.

7. How can I prevent the U2605 code from appearing again in my Chevrolet after repairing the communication issue between the Battery Energy Control Module and Hybrid/EV Battery Interface Control Module?

- Regular maintenance, such as checking the wiring connections periodically and ensuring software updates are current, can help prevent communication issues between the control modules in the future.

8. Are there specific Chevrolet models known to be more prone to experiencing the U2605 code related to the Battery Energy Control Module communication problem?

- While the U2605 code can potentially occur in various Chevrolet models with hybrid or electric systems, some models may have a higher incidence due to specific design or component factors.

9. Can a DIY enthusiast with automotive knowledge repair the U2605 code in a Chevrolet, or is it best left to professional technicians?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the U2605 code. However, complex electrical issues involving the hybrid system may be best handled by professional technicians.

10. Will fixing the U2605 code related to the Battery Energy Control Module communication issue in a Chevrolet improve fuel efficiency and overall performance?

- Resolving the communication issue and ensuring proper functioning of the control modules can help restore fuel efficiency, performance, and overall reliability of the hybrid or electric system in the vehicle.