U044B

Symptoms

• The Check Engine light comes on
• The car may go into emergency mode
• Reduced power or limited functionality
• Battery charging problems
• Error messages on the dashboard

Causes

• Battery Energy Management Module C malfunction
• Open or short circuit in the communication circuit
• Poor contacts or corroded connectors
• Problems with the CAN network
• Control module software error

How to Fix

1. Check the status of the module with a diagnostic scanner
2. Inspect the connectors and wiring of the control module
3. Check supply voltage and integrity of communication circuits
4. Update module software (if required)
5. Replace Battery Energy Management Module C if necessary

Related codes

Error U044B by Vehicle Brand