Fault Code U0290
Code meaning, symptoms, possible causes, part number, and estimated cost.
U0290
Lost Communication with Battery Energy Control Module
This code indicates a critical loss of communication between the main control unit and the Battery Energy Control Module. This fault can prevent the vehicle from starting, charging the battery, or operating essential electrical systems.
Part Details
Part Name
Battery Energy Control Module
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪1500 - ₪5000
Engine Location
Near main battery
Symptoms
- Vehicle not starting
- Battery not charging
- Battery warning light illuminated
- Failure of various electrical systems
Possible Causes
- 1Internal failure of the Battery Energy Control Module
- 2Faulty wiring or short circuit in the communication system (CAN)
- 3Loose or corroded connector
- 4Battery failure itself
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