U2623 Code - Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11
Quick Answer
The U2623 diagnostic trouble code (DTC) indicates that there is a communication error between the Battery Energy Control Module (BECM) and the Hybrid/EV Battery Interface Control Module 11 in a hybrid or electric vehicle. Common causes include Faulty Wiring: Damaged or corroded wiring within the communication pathway can disrupt the signal between the BECM and the Interface Control Module 11, Loose Connectors: Loose or improperly connected connectors can cause intermittent communication errors between the two modules, Malfunctioning Components: Components within the communication pathway, such as sensors or control modules, may be malfunctioning and causing the communication error. 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 indicates Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11.
- Common causes
- Common causes include Faulty Wiring: Damaged or corroded wiring within the communication pathway can disrupt the signal between the BECM and the Interface Control Module 11, Loose Connectors: Loose or improperly connected connectors can cause intermittent communication errors between the two modules, Malfunctioning Components: Components within the communication pathway, such as sensors or control modules, may be malfunctioning and causing the communication error.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U2623 Description
The U2623 diagnostic trouble code (DTC) indicates that there is a communication error between the Battery Energy Control Module (BECM) and the Hybrid/EV Battery Interface Control Module 11 in a hybrid or electric vehicle. The BECM is responsible for managing the energy flow in the battery system, while the Interface Control Module 11 is in charge of communication between the various components in the battery system.
Common Causes of U2623
- Faulty Wiring: Damaged or corroded wiring within the communication pathway can disrupt the signal between the BECM and the Interface Control Module 11.
- Loose Connectors: Loose or improperly connected connectors can cause intermittent communication errors between the two modules.
- Malfunctioning Components: Components within the communication pathway, such as sensors or control modules, may be malfunctioning and causing the communication error.
- Water Intrusion: Water intrusion into the wiring or connectors can lead to corrosion and disrupt the communication signal.
Symptoms of U2623
- Check Engine Light: The most common symptom associated with the U2623 code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Fuel Efficiency: Communication errors between the BECM and the Interface Control Module 11 can lead to decreased fuel efficiency as the battery system may not be operating optimally.
- Loss of Power: The vehicle may experience a loss of power or reduced performance due to the communication error affecting the energy flow in the battery system.
- Erratic Behavior: The vehicle may exhibit erratic behavior, such as inconsistent charging or discharging patterns, as a result of the communication issue.
How to Fix U2623
- Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and pinpoint the exact nature of the communication error between the BECM and the Interface Control Module 11.
- Inspect Wiring and Connectors: Thoroughly inspect the wiring and connectors in the communication pathway for any damage, corrosion, or loose connections.
- Test Components: Test the components within the communication pathway, such as sensors or control modules, to identify any malfunctioning parts.
- Repair or Replace: Repair or replace any faulty wiring, connectors, or components as necessary to restore proper communication between the BECM and the Interface Control Module 11.
- Clear DTCs: Once the repair is complete, clear the DTC using a diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix U2623
The typical repair costs for addressing the U2623 code can vary depending on the extent of the issue and the specific components that need to be repaired or replaced. In general, the cost of repairing a communication error between the BECM and the Interface Control Module 11 can range from $200 to $500, including parts and labor.
Need more information about the U2623 code?
Need more information on how to fix the U2623 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U2623 code diagnosed by a professional: Find a repair shop in your area
Code U2623 Information for Specific Makes
- U2623 Buick — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11
- U2623 Cadillac — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11
- U2623 Chevrolet — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11
- U2623 GMC — Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 11
Frequently Asked Questions about U2623 Code
1. What are the common symptoms of OBDII code U2623?
- Common symptoms include the check engine light coming on, decreased fuel efficiency, and potential drivability issues.
2. What does OBDII code U2623 indicate?
- This code indicates that the Battery Energy Control Module has lost communication with the Hybrid/EV Battery Interface Control Module 11.
3. What are the possible causes of code U2623?
- Possible causes include wiring issues, loose connections, a faulty control module, or problems with the hybrid/EV battery interface.
4. How can I diagnose OBDII code U2623?
- Diagnosis typically involves checking the wiring and connections between the control modules, testing the modules for functionality, and using a diagnostic scan tool to retrieve specific error codes.
5. Can I still drive my vehicle with code U2623 present?
- It is not recommended to drive your vehicle with this code present, as it can lead to further issues with the hybrid or electric components of the vehicle.
6. How can I repair OBDII code U2623?
- Repairing this code may involve fixing wiring issues, ensuring proper connections, replacing a faulty control module, or addressing problems with the hybrid/EV battery interface.
7. Is it safe to reset the code and continue driving?
- It is not advisable to simply reset the code without addressing the underlying issue, as it may lead to further complications or potentially dangerous situations.
8. How much does it typically cost to repair OBDII code U2623?
- The cost of repairing this code can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as potential replacement parts.
9. Can code U2623 be triggered by a weak battery?
- A weak battery could potentially contribute to communication issues between control modules, but it is not a common direct cause of OBDII code U2623.
10. Are there any preventive measures to avoid code U2623 in the future?
- Regular maintenance, including checking for loose connections and ensuring the health of the hybrid/EV components, can help prevent issues that may trigger code U2623.
Discuss the causes and fixes for U2623 OBDII Code
Code U2623 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.