U0217Lost Communication With Door Switch C
- Generic OBD-II code · Network
- How the car detects it
- U0217 is set when door switch unit C no longer answers its master. How much breaks then depends on the door architecture. In NXP's LIN door reference SG2034 the driver's control switch panel is itself the LIN master and commands the front and rear window lifters, door locks and mirror as slaves; in the AN2205 layout the keypad is only a slave whose key states are read by the body controller, or alternatively by the window nodes. If the lost unit is the driver's panel, the remote buttons for the other windows can go dead together with its own keys, while a passenger panel usually affects one window. No manufacturer documents U0217 publicly, and the letter-to-door mapping is set by the maker. No MIL.
- What you may notice
- Other windows can no longer be operated from the driver's panel
- Keys on the affected panel inoperative
- Mirror adjustment from the panel unavailable
- Likely causes
- LikelyBroken wire in the flexing harness between door and body
- PossibleCorroded or loose connector at the switch panel
- PossibleSwitch panel electronics failed
- RareFault in the door or body module that polls the panel
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.