U044C code meaning
Invalid Data Received From Hybrid/EV Battery Inductive Charging Module
What U044C means
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.
U044C at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U044C
- Wireless charging does not start or stops early
- Charging system message in the display
Common causes of U044C
- PossiblePoor alignment or disturbed link between vehicle unit and ground pad
- PossibleSoftware of the inductive charging module not matching the battery controller
- Less likelyInternal fault or overheating of the inductive charging module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Inductive charger module
What each part of U044C means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 4C | The exact fault in that area. |
What to do next
- Note U044C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U044C
What does U044C mean?
U044C means "Invalid Data Received From Hybrid/EV Battery Inductive Charging Module". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with U044C?
U044C does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U044C fail an emissions test?
U044C is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U044C to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will U044C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.