Main window switch problem help....

[Javigo1971]

Ok I'm getting crazy here...I have the passenger window working only with its own door switch...if I use the main driver switch it won't work at all...any help guys to find how to test the main switch to make the window work..thanks
One more thing can I adjust the rear height air springs with the inpa program .?

[Shel]

Possible water ingress or spilled a drink on that part of the switch.

Remove it and open it up. Spray the crap out of it with electrical contact cleaner and clean the contacts.

I had this on my e46. Hopefully it'll be something simple.


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[Vonbimmer]

I had a similar issue that also impacted the control of the passenger side mirror and door lock. The issue in my case turned out to be that a pin connector in the passenger door harness cooroded until it was gone. It appears signaling for all functions on the door came via that pin so after configuring a soldered in lead to bypass the failed pin All is well.