sunroof switch wiring, please help.

[StereoInstaller1]

Do we know exactly what car that "blue base" is out of?

[StereoInstaller1]

OK, so the E30 part is easy, but I cannot find an E36 diagram showing the switch

The schematic for the E30 is pretty simple:

Brown (2X) is ground

Green/Blue is +12V (from fuse 17, 30A)

Open/Raise is Black
Lower/Close is Green

So here is the deal: you will see (when 100% installed) ground on both Green and Black...but I can't tell if there is a brown wire on the E36 (?) switch or not...

Either way, both green and black "rest" on ground, then switch to +12V when you activate the switch. These are the wires that run the motor, albeit indirectly.

So, if you grab the new switch and a DMM, I clearly saw a green/blue wire on it, so cconnect from the GR/BU and check all wires one at a time to see which 2 switch over to continuity when you activate the switch.

Counting those 2 as the "up and "down", you should find continuity between those 2 and a 3rd wire when resting...that would be the ground.

I hope that helps in figuring out the switch, but sometimes I swear to fuck...if I could make it a law that all questions of ANY technical nature include EVERY detail (for example, WHAT CAR IS THE SWITCH FROM?) so diagnostics are easier...

[akorcovelos]

All I know about the blue base switch is it came from an e36, maybe Franco can chime in since I bought it from him.

There are no brown wires on the e36 switch.

I'll play with my continuity setting on my MM when I get home this evening and report back, thanks for the help!

[StereoInstaller1]

I swear that install would be easier with a "green base" and 2 relays...

[akorcovelos]

never even seen a green base, though I have 2 white bases sitting in the shop. The white base switches only have 4 wires though.

[StereoInstaller1]

If that is the small white base, with the tiny wires, that would be easy

[akorcovelos]

yes they are the small white base, but no need, I got the switch working! Thanks to everyone, especially Stereoinstaller1 and Peerless over on tech. I have some wiring clean up to do, then I'll post some installed pics later tonight with a wiring how-to.

[franco90]

yes they are the small white base, but no need, I got the switch working! Thanks to everyone, especially Stereoinstaller1 and Peerless over on tech. I have some wiring clean up to do, then I'll post some installed pics later tonight with a wiring how-to.

so you got it working that great

[akorcovelos]

yeah, thanks to all of you. Finished up the install last night, love the look/fell of the e36 switches compared to the e30 lego block ones. Windows are next, I have the 2 white base units to use for those. I think I can handle the install on those now though, I have gotten quite proficient with a continuity tester. :)

[franco90]

yeah, thanks to all of you. Finished up the install last night, love the look/fell of the e36 switches compared to the e30 lego block ones. Windows are next, I have the 2 white base units to use for those. I think I can handle the install on those now though, I have gotten quite proficient with a continuity tester. :)

TONY you the men I think you are the 1st one w/this mod.




ok, for blue base e36 switch to e30 sunroof the pin out is:

e30 Green/Blue to e36 Green/White (pin #5)
e30 Green to e36 Blue (pin #3)
e30 Brown to e36 Blue/Green (pin #6)
e30 Brown to e36 Black/Yellow (pin #1)
e30 Black to e36 Black (pin #4)

[akorcovelos]

Thanks Franco, and everyone for all the help!