AutoCodes – GMC – U2606 GMC

U2606 GMC Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 4

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 4, Hybrid/EV Battery Interface Control Module 4 harness is open or shorted, Hybrid/EV Battery Interface Control Module 4 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: U2606 GMC indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 4.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module 4, Hybrid/EV Battery Interface Control Module 4 harness is open or shorted, Hybrid/EV Battery Interface Control Module 4 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 580

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 U2606 GMC 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 4 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 4 to Battery Energy Control Module within 4s.

OBDII Code U2606 GMC - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 4 - AutoCodes.com — U2606 GMC Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 4

What does this mean?

What are the Possible Causes of the DTC U2606 GMC?

Faulty Hybrid/EV Battery Interface Control Module 4
Hybrid/EV Battery Interface Control Module 4 harness is open or shorted
Hybrid/EV Battery Interface Control Module 4 circuit poor electrical connection
Faulty Battery Energy Control Module

How to Fix the DTC U2606 GMC?

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 U2606 GMC 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 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 U2606 GMC Code

1. What are common symptoms of OBDII code U2606 in a GMC vehicle?

- Common symptoms may include the hybrid/EV system not functioning properly, loss of power, warning lights on the dashboard, and issues with the battery management system.

2. What does the OBDII code U2606 indicating "Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 4" mean?

- This code indicates a communication problem between the battery energy control module and the hybrid/EV battery interface control module 4 in a GMC vehicle.

3. What are possible causes of OBDII code U2606 in a GMC vehicle?

- Possible causes may include wiring issues, faulty connectors, a malfunctioning battery control module, a problem with the battery interface control module, or a communication network issue.

4. How can I diagnose and repair OBDII code U2606 in my GMC vehicle?

- Diagnosis typically involves checking the wiring, connectors, and modules associated with the battery energy control system. Repair may involve fixing wiring issues, replacing faulty components, or reprogramming modules.

5. Is it safe to drive with OBDII code U2606 present in a GMC vehicle?

- It is not recommended to continue driving with this code present, as it can affect the proper functioning of the hybrid/EV system and potentially lead to further damage.

6. Can I reset the OBDII code U2606 in my GMC vehicle by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to diagnose and address the underlying issue to prevent the code from reappearing.

7. How much does it typically cost to repair OBDII code U2606 in a GMC vehicle?

- The cost of repair can vary depending on the specific issue causing the code. It is recommended to consult with a professional mechanic for an accurate diagnosis and cost estimate.

8. Are there any recalls or technical service bulletins related to OBDII code U2606 in GMC vehicles?

- It is advisable to check with the manufacturer or a dealership for any relevant recalls or technical service bulletins related to this specific OBDII code in GMC vehicles.

9. Can a DIY enthusiast with automotive knowledge repair OBDII code U2606 in a GMC vehicle?

- Depending on the root cause of the issue, some DIY enthusiasts with automotive knowledge may be able to diagnose and repair OBDII code U2606. However, complex electrical systems may require professional expertise.

10. How can I prevent OBDII code U2606 from occurring in my GMC vehicle?

- To prevent this code, it is important to perform regular maintenance on the hybrid/EV system, including checking the wiring, connectors, and modules for any signs of wear or damage.