U0224Lost Communication With Door Window Motor C
- Generic OBD-II code · Network
- How the car detects it
- U0224 means door window motor C no longer reports in; GM's PIT5981B names it among the four window motor codes of its 2021–2025 full-size SUVs. Inside such a motor sits more than a driver stage: NXP's AN3147 reference counts Hall pulses to track glass position, detects pinching or stall and reports chip status such as overvoltage or overtemperature to the LIN master. The anti-pinch logic has to meet FMVSS 118, which permits automatic closing only if the glass reverses before it squeezes a test rod with 100 N or more. With the motor silent, the master sees neither position nor protection status, so functions built on them, such as one-touch closing, are generally unavailable. No MIL.
- What you may notice
- One-touch up and down unavailable
- Window in the affected door does not move
- Glass stops at random points or not at all
- Likely causes
- LikelyBroken bus or supply wire in the door harness
- PossibleMotor electronics damaged (overvoltage, overheating, Hall sensor board)
- PossibleFuse or ground for motor C missing
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €650
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.