AutoCodes – Cadillac – U2623 Cadillac

U2623 Cadillac Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11

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 11, Hybrid/EV Battery Interface Control Module 11 harness is open or shorted, Hybrid/EV Battery Interface Control Module 11 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: U2623 Cadillac indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module 11, Hybrid/EV Battery Interface Control Module 11 harness is open or shorted, Hybrid/EV Battery Interface Control Module 11 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 518

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 U2623 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 11 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 11 to Battery Energy Control Module within 4s.

OBDII Code U2623 Cadillac - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11 - AutoCodes.com — U2623 Cadillac Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11

What does this mean?

What are the Possible Causes of the DTC U2623 Cadillac?

Faulty Hybrid/EV Battery Interface Control Module 11
Hybrid/EV Battery Interface Control Module 11 harness is open or shorted
Hybrid/EV Battery Interface Control Module 11 circuit poor electrical connection
Faulty Battery Energy Control Module

How to Fix the DTC U2623 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 U2623 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.

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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 U2623 Cadillac Code

1. What are the common symptoms of OBDII code U2623 in a Cadillac related to the Battery Energy Control Module lost communication with Hybrid/EV Battery Interface Control Module 11?

- Common symptoms include poor hybrid system performance, reduced fuel efficiency, warning lights on the dashboard, and potential issues with starting the vehicle.

2. What are the possible causes of OBDII code U2623 in a Cadillac?

- Potential causes may include loose or damaged wiring connections, a faulty Battery Energy Control Module, a malfunctioning Hybrid/EV Battery Interface Control Module 11, or software glitches.

3. How can I diagnose the OBDII code U2623 in a Cadillac?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific code, checking the wiring connections for any visible issues, and conducting thorough testing of the Battery Energy Control Module and the Hybrid/EV Battery Interface Control Module 11.

4. Is it safe to continue driving with OBDII code U2623 present in a Cadillac?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the hybrid system components and potentially affect the overall drivability of the vehicle.

5. How can I repair OBDII code U2623 in a Cadillac?

- Repair steps may involve checking and repairing any damaged wiring connections, replacing the Battery Energy Control Module or the Hybrid/EV Battery Interface Control Module 11 if necessary, and performing software updates or resets as recommended by the manufacturer.

6. Can a DIY enthusiast fix OBDII code U2623 in a Cadillac?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing this code may require specialized tools and knowledge, so it is advisable to consult a professional mechanic for proper diagnosis and repair.

7. Are there any recalls related to OBDII code U2623 in Cadillac vehicles?

- It is recommended to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code in Cadillac vehicles.

8. How much does it cost to repair OBDII code U2623 in a Cadillac?

- The cost of repair can vary depending on the specific underlying issue causing the code, the labor rates in your area, and the cost of parts needed for the repair. It is advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

9. Can resetting the OBDII code U2623 in a Cadillac make it go away permanently?

- Resetting the code may clear the warning lights temporarily, but if the underlying issue causing the code is not addressed and repaired, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem for a permanent solution.

10. How can regular maintenance help prevent OBDII code U2623 in a Cadillac?

- Regular maintenance, including scheduled inspections of the hybrid system components, checking for loose wiring connections, and following the manufacturer's recommended service intervals, can help prevent issues like OBDII code U2623 from occurring.