U044B
Invalid Data Received From Battery Energy Control Module C
A receiving module detected implausible data from battery energy control module C. SoC, SoH, current or voltage values fail plausibility checks against other inputs and are rejected.
A receiving module detected implausible data from battery energy control module C. SoC, SoH, current or voltage values fail plausibility checks against other inputs and are rejected.
Common causes
- high
Module internal fault or sensor input drift
One of the most commonly reported causes for this code — check this first.
Typical part cost: $220-2750
- medium
Software version mismatch after replacement
A plausible cause — test and verify before replacing parts.
Typical part cost: $220-2750
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does U044B mean?
U044B means "Invalid Data Received From Battery Energy Control Module C". It is a generic OBD-II code that points to a fault in the network / communication.
What are the most common causes of U044B?
module internal fault or sensor input drift; software version mismatch after replacement; gateway module routing can messages incorrectly — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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