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Engine-Codes – Generic – U2619

U2619 Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7

Quick Answer

The U2619 diagnostic trouble code (DTC) indicates that the Battery Energy Control Module (BECM) has lost communication with the Hybrid/EV Battery Interface Control Module 7. Common causes include Faulty Battery Energy Control Module, Poor electrical connections or wiring issues between modules, Software glitches or programming errors. 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
U2619 indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7.
Common causes
Common causes include Faulty Battery Energy Control Module, Poor electrical connections or wiring issues between modules, Software glitches or programming errors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code U2619 Description

The U2619 diagnostic trouble code (DTC) indicates that the Battery Energy Control Module (BECM) has lost communication with the Hybrid/EV Battery Interface Control Module 7. In hybrid and electric vehicles, the BECM is responsible for managing the energy flow between the battery pack and the vehicle's electrical systems, ensuring optimal performance and efficiency. The Hybrid/EV Battery Interface Control Module 7 is a crucial component that facilitates communication between the BECM and the battery pack, allowing for proper monitoring and control of the battery's state of charge, temperature, and overall health.

OBDII Code U2619 - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7
U2619 Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7

Common Causes of U2619

  1. Faulty Battery Energy Control Module
  2. Poor electrical connections or wiring issues between modules
  3. Software glitches or programming errors
  4. Battery pack issues, such as low voltage or high resistance
  5. Environmental factors, such as extreme temperatures or moisture intrusion

Symptoms of U2619

  1. Hybrid System Warning Light illuminated on the dashboard
  2. Check Engine Light activated
  3. Reduced electric drive range
  4. Decreased fuel efficiency
  5. Drivability concerns, such as hesitation or rough idling

How to Fix U2619

  1. Perform a thorough diagnostic scan to confirm the U2619 code and identify any additional related codes.
  2. Inspect the electrical connections and wiring between the BECM and Hybrid/EV Battery Interface Control Module 7 for any signs of damage or corrosion.
  3. Check the battery pack's voltage and resistance levels to ensure they are within the manufacturer's specifications.
  4. Update the software for both modules to the latest version, if applicable.
  5. Replace the Battery Energy Control Module or Hybrid/EV Battery Interface Control Module 7 if deemed faulty and reprogram as necessary.

Cost to Fix U2619

The typical cost for repairing a U2619 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the repair costs for this issue can range from $200 to $600, including parts and labor. It's important to note that diagnosis time and labor rates can vary based on location, vehicle make and model, and engine type, so it's advisable to contact local auto repair shops for a more accurate estimate.

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Code U2619 Information for Specific Makes

  • U2619 Buick — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7
  • U2619 Cadillac — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7
  • U2619 Chevrolet — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7
  • U2619 GMC — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7
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 U2619 Code

1. What are common symptoms of OBDII code U2619?

- Common symptoms include the hybrid or electric vehicle not starting, reduced power, poor fuel efficiency, and warning lights on the dashboard.

2. What causes the OBDII code U2619 to be triggered?

- The code is triggered when the Battery Energy Control Module loses communication with the Hybrid/EV Battery Interface Control Module 7, often due to wiring issues, module malfunctions, or software glitches.

3. How can I diagnose the issue related to OBDII code U2619?

- Diagnosing the issue involves using a diagnostic scanner to retrieve the code, checking the wiring connections between the modules, and performing a system reset to see if communication is restored.

4. Can a DIYer repair OBDII code U2619 at home?

- Repairing this code may require advanced diagnostic tools and knowledge, making it more suitable for experienced mechanics or technicians. DIYers can check wiring connections and fuses but may need professional help for further troubleshooting.

5. What are the potential risks of ignoring OBDII code U2619?

- Ignoring the code can lead to further communication issues between critical components in the hybrid or electric vehicle system, potentially causing drivability issues and safety concerns.

6. Is it safe to drive with OBDII code U2619 present?

- It is not recommended to drive with this code present, as it can affect the performance and safety of the hybrid or electric vehicle. It's best to address the issue as soon as possible.

7. How much does it typically cost to repair OBDII code U2619?

- The cost of repairing this code can vary depending on the underlying cause, but it may involve replacing modules, repairing wiring, or updating software. Costs can range from a few hundred to over a thousand dollars.

8. Can a weak or failing hybrid/EV battery cause OBDII code U2619?

- Yes, a weak or failing hybrid/EV battery can contribute to communication issues between modules, potentially triggering code U2619. It's important to ensure the battery is in good condition.

9. Are there any preventive maintenance steps to avoid OBDII code U2619?

- Regularly checking the health of the hybrid/EV battery, ensuring proper wiring connections, and keeping up with software updates can help prevent issues that lead to code U2619.

10. How long does it take to repair OBDII code U2619?

- The repair time for this code can vary based on the exact cause and the complexity of the repair needed. It may take a few hours to a full day for a mechanic to diagnose and fix the issue.

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