U044CInvalid Data Received From Hybrid/EV Battery Inductive Charging Module
- Generic OBD-II code · Network
- How the car detects it
- U044C covers the module that controls inductive charging of the high-voltage battery: a receiver coil and electronics on the vehicle take energy from a ground pad without a cable and must agree with the charger on alignment, power and battery limits. A receiver such as the battery or vehicle controller stores U044C when the module's frames arrive but hold invalid status or power values; U014B is lost contact. No manufacturer documents U044C publicly. BMW ran such a system as a field test with 200 530e iPerformance cars in California (SIB 61 23 19), with a ground pad module paired over WLAN, and only a few dealers equipped to diagnose it. The likely result is an interrupted or refused wireless charge, while charging by cable and driving normally remain possible.
- What you may notice
- Wireless charging does not start or stops early
- Charging system message in the display
- Likely causes
- PossiblePoor alignment or disturbed link between vehicle unit and ground pad
- PossibleSoftware of the inductive charging module not matching the battery controller
- RareInternal fault or overheating of the inductive charging module
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.