AutoCodes – Chevrolet – U2612 Chevrolet

U2612 Chevrolet Code - Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Battery Charger Control Module, Battery Charger Control Module harness is open or shorted, Battery Charger 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: U2612 Chevrolet indicates Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2.
Common causes: Common causes include Faulty Battery Charger Control Module, Battery Charger Control Module harness is open or shorted, Battery Charger 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 667

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 U2612 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.
This diagnostic is used to check the loss of communication with the Hybrid/EV Powertrain Control Module 2 on a high-speed General Motors Local Area Network (GMLAN) bus. The Battery Energy Control Module supervises a periodic serial data message to check the communication status of the Hybrid/EV Powertrain Control Module 2. If this message is not received within 400 ms, the Battery Energy Control Module increases its fail count. When this fail count is over X Cal Value (7) during Y Cal Value (10 samples), the diagnostic status of this code is set to Failed and transmitted over high voltage energy high-speed GMLAN bus to the Hybrid/EV Powertrain Control Module 2.
The Diagnostic Trouble Code (DTC) will set when a supervised periodic message that includes the transmitter device availability has not been received within 400 ms.

OBDII Code U2612 Chevrolet - Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2 - AutoCodes.com — U2612 Chevrolet Code - Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2

What does this mean?

What are the Possible Causes of the DTC U2612 Chevrolet?

Faulty Battery Charger Control Module
Battery Charger Control Module harness is open or shorted
Battery Charger Control Module circuit poor electrical connection
Faulty Hybrid/EV Powertrain Control Module 2

How to Fix the DTC U2612 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 U2612 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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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 U2612 Chevrolet Code

1. What are the common symptoms of OBDII code U2612 in a Chevrolet vehicle?

- Common symptoms include the battery not charging properly, loss of power, warning lights on the dashboard, and difficulty starting the vehicle.

2. What could cause the OBDII code U2612 in a Chevrolet indicating "Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2"?

- Possible causes could be a faulty battery charger control module, issues with the hybrid/EV powertrain control module, wiring problems, or communication network issues.

3. How can I diagnose the OBDII code U2612 in my Chevrolet?

- Diagnosing this code typically involves checking the connections and wiring between the battery charger control module and the powertrain control module, as well as scanning for other related trouble codes.

4. Can I continue driving my Chevrolet with the U2612 OBDII code present?

- It is not recommended to continue driving the vehicle with this code active, as it can lead to further damage and potential safety issues. It's best to address the underlying problem as soon as possible.

5. How can I repair the U2612 OBDII code in my Chevrolet?

- Repairing this code may involve checking and repairing any wiring issues, replacing the battery charger control module or the powertrain control module if necessary, and ensuring all connections are secure.

6. Is it safe to reset the OBDII code U2612 in my Chevrolet using a diagnostic tool?

- While you can clear the code temporarily, it is important to address the root cause of the issue first. Clearing the code without fixing the underlying problem may result in it reoccurring and potentially causing further issues.

7. Can a DIY enthusiast fix the U2612 OBDII code in a Chevrolet?

- Depending on the skill level and experience, some DIY enthusiasts may be able to diagnose and repair this code. However, due to the complexity of hybrid/EV systems, it is recommended to seek professional help if unsure.

8. How much does it cost to repair the U2612 OBDII code in a Chevrolet?

- The cost of repairing this code can vary depending on the specific issue, parts needed, and labor costs. It's best to get a diagnostic from a trusted mechanic to determine the exact cost.

9. Are there any preventative measures to avoid the U2612 OBDII code in a Chevrolet?

- Regular maintenance, such as checking the battery and electrical components, can help prevent issues that may trigger the U2612 code. Additionally, addressing any warning signs promptly can help avoid more severe problems.

10. How long does it typically take to repair the U2612 OBDII code in a Chevrolet?

- The repair time can vary depending on the complexity of the issue and the availability of parts. Some repairs may be completed within a few hours, while others may require more time for diagnosis and repair.