AutoCodes – GMC – U2618 GMC

U2618 GMC Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 6

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 6, Hybrid/EV Battery Interface Control Module 6 harness is open or shorted, Hybrid/EV Battery Interface Control Module 6 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
U2618 GMC indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 6.
Common causes
Common causes include Faulty Hybrid/EV Battery Interface Control Module 6, Hybrid/EV Battery Interface Control Module 6 harness is open or shorted, Hybrid/EV Battery Interface Control Module 6 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 446
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 18, 2020
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Code U2618 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 6 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 6 to Battery Energy Control Module within 4s.
OBDII Code U2618 GMC - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 6 - AutoCodes.com
U2618 GMC Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 6

What are the Possible Causes of the DTC U2618 GMC?

  • Faulty Hybrid/EV Battery Interface Control Module 6
  • Hybrid/EV Battery Interface Control Module 6 harness is open or shorted
  • Hybrid/EV Battery Interface Control Module 6 circuit poor electrical connection
  • Faulty Battery Energy Control Module

How to Fix the DTC U2618 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 U2618 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.

Need more information about the U2618 GMC 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 U2618 GMC Code

1. What are common symptoms of OBDII code U2618 in a GMC vehicle?

- Common symptoms include loss of power, reduced fuel efficiency, and illuminated warning lights on the dashboard.

2. What does the OBDII code U2618 indicate in a GMC vehicle?

- The code U2618 indicates that the Battery Energy Control Module has lost communication with the Hybrid/EV Battery Interface Control Module 6.

3. What are possible causes of the U2618 code in a GMC vehicle?

- Possible causes include wiring issues, faulty connectors, a malfunctioning Battery Energy Control Module, or a problem with the Hybrid/EV Battery Interface Control Module 6.

4. How can I diagnose the U2618 code in my GMC vehicle?

- Diagnosing the U2618 code typically involves inspecting the wiring and connectors related to the Battery Energy Control Module and Hybrid/EV Battery Interface Control Module 6, as well as using a diagnostic scan tool to read the code.

5. Is it safe to continue driving with the U2618 code present in a GMC vehicle?

- It is not recommended to continue driving with the U2618 code present, as it can lead to further damage to the vehicle's hybrid or electric system.

6. Can I repair the U2618 code in my GMC vehicle myself?

- While some minor wiring issues may be repairable by an experienced DIYer, diagnosing and repairing the U2618 code often requires specialized knowledge and tools, so it is best to consult a professional mechanic.

7. What are the potential consequences of ignoring the U2618 code in a GMC vehicle?

- Ignoring the U2618 code can lead to decreased performance, reduced fuel efficiency, and potential damage to the hybrid or electric components of the vehicle.

8. How much does it typically cost to repair the U2618 code in a GMC vehicle?

- The cost of repairing the U2618 code can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a faulty battery be the cause of the U2618 code in a GMC vehicle?

- Yes, a faulty hybrid or electric battery can potentially cause communication issues between the Battery Energy Control Module and the Hybrid/EV Battery Interface Control Module 6, triggering the U2618 code.

10. Is it possible for the U2618 code to reappear after it has been cleared in a GMC vehicle?

- Yes, if the underlying issue causing the U2618 code is not properly addressed, it is possible for the code to reappear after it has been cleared.

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