U0226Lost Communication With Door Window Motor E
- Generic OBD-II code · Network
- How the car detects it
- U0226 is stored when door window motor E stops answering. No manufacturer documents U0226 publicly, and the door behind letter E is the maker's choice. Water, however, is a proven cause of failure for window motors with built-in electronics. Tesla bulletin SB-18-11-005 R1 replaced both front window motor and regulator units on Model 3 cars built before about January 2018 because water could get inside the motors and make them fail. GM bulletin 18-NA-079 found water and corrosion at the driver window motor connector on 2014–2018 trucks and replaced motor and door harness together. A leaking door membrane or water deflector is therefore worth checking first. No MIL.
- What you may notice
- Window stops working, often after rain or a car wash
- Window moves jerkily before failing completely
- Corrosion or moisture visible at the motor plug
- Likely causes
- LikelyWater inside the motor housing or its electronics
- PossibleCorroded motor connector
- PossibleDoor membrane or water deflector not sealing
- RareBroken wire in the door harness
- Repair
- Medium · Often possible to do yourself.Typical cost: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.