Hello! Writing in today with a power window issue. I've posted about this before but in the wrong area. https://www.jaguarforums.com/forum/x...-issue-274572/

There's also some updates.

Vehicle is 2004 XJR 4.2L v8 supercharged (US)

As of now, none of the windows will roll up or down except in this specific situation:
Insert Key
Turn key to ON position but do not start car
Jaguar logo displays on the screen
Jaguar logo disappears and message displays: ignition off / ac not available
All window switches work : up and down
Open door / or turn ON vehicle and window switches are no longer working.
Turn On vehicle: Window switches do not work. Turn vehicle off one click (ON position) and wait for the ignition off / ac not available message and all windows work again.

Previously we checked the window fuses, the main switch and the wiring connected to the switch. Tried the battery reset method.

Almost purchased a new switch but after further isolating I don't believe it would be the switch if it works with the key in ON position only? could be a relay problem with power being cut once the vehicle is started?


I still have all of the other issues but I'll post separately about them as we begin to work on the car again, this is most pressing at the moment.

Thanks for the help!