AutoCodes – Cadillac – U2619 Cadillac

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

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 7, Hybrid/EV Battery Interface Control Module 7 harness is open or shorted, Hybrid/EV Battery Interface Control Module 7 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
U2619 Cadillac indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7.
Common causes
Common causes include Faulty Hybrid/EV Battery Interface Control Module 7, Hybrid/EV Battery Interface Control Module 7 harness is open or shorted, Hybrid/EV Battery Interface Control Module 7 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 621
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 U2619 Cadillac 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 7 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 7 to Battery Energy Control Module within 4s.
OBDII Code U2619 Cadillac - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7 - AutoCodes.com
U2619 Cadillac Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 7

What are the Possible Causes of the DTC U2619 Cadillac?

  • Faulty Hybrid/EV Battery Interface Control Module 7
  • Hybrid/EV Battery Interface Control Module 7 harness is open or shorted
  • Hybrid/EV Battery Interface Control Module 7 circuit poor electrical connection
  • Faulty Battery Energy Control Module

How to Fix the DTC U2619 Cadillac?

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 U2619 Cadillac 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 U2619 Cadillac 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 U2619 Cadillac Code

1. What are common symptoms of OBDII code U2619 in a Cadillac?

When this code is present, you may experience issues such as the hybrid/EV system not functioning properly, warning lights on the dashboard, and potential loss of power or efficiency.

2. What causes the OBDII code U2619 in a Cadillac?

This code typically indicates a communication problem between the Battery Energy Control Module and the Hybrid/EV Battery Interface Control Module 7, which can be caused by wiring issues, module failures, or software malfunctions.

3. How can I diagnose the OBDII code U2619 in my Cadillac?

Diagnosing this code usually involves using a diagnostic scanner to retrieve the specific codes, checking the wiring and connections between the modules, and conducting tests to determine the root cause of the communication loss.

4. Can I still drive my Cadillac with the U2619 code present?

It is not recommended to continue driving the vehicle with this code present, as it could lead to further damage to the hybrid/EV system. It's best to address the issue promptly to prevent any potential safety hazards.

5. How do I repair the U2619 code in my Cadillac?

Repairing this code may involve repairing or replacing damaged wiring, replacing faulty modules, updating software, or reprogramming the modules to restore communication between the Battery Energy Control Module and the Hybrid/EV Battery Interface Control Module 7.

6. Is the U2619 code a common issue in Cadillac hybrid vehicles?

While not extremely common, the U2619 code can occur in Cadillac hybrid vehicles due to communication issues between the energy control modules. Regular maintenance and timely repairs can help prevent this issue.

7. Can a DIY enthusiast fix the U2619 code in a Cadillac?

Unless you have experience with automotive diagnostics and repair, it is recommended to have a professional technician address the U2619 code in your Cadillac. Improper repairs could lead to further complications.

8. How much does it typically cost to repair the U2619 code in a Cadillac?

The cost of repairing the U2619 code can vary depending on the root cause of the issue, the extent of the repairs needed, and labor rates. It's best to consult with a certified mechanic for an accurate estimate.

9. Will resetting the OBDII codes make the U2619 code disappear?

Resetting the OBDII codes may temporarily clear the U2619 code, but if the underlying issue causing the communication loss is not addressed, the code is likely to reappear. It's essential to diagnose and repair the problem to prevent future occurrences.

10. How can I prevent the U2619 code from occurring in my Cadillac?

Regular maintenance, including checking the wiring connections and keeping the modules updated, can help prevent communication issues that lead to the U2619 code. Following the manufacturer's recommended service schedule is crucial for early detection and prevention.

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