Where does the Reverse switch wire enter the cabin

[BlackBMWs]

Yes, but. it tested 12v constant. It should be switched, 12v onbased on being in reverse. Need to find the connection after the tranny switch.


Sent from my iPhone using Tapatalk

[Sweepy]

Ok just looked at mine Iv got my under coloum trim off, anyway my auto dim mirror is definetly plugged in to a blue/yellow wire but just occurred my car is RHD so yours may be behind the glove box? Also I had pdc from factory, it's in the "splice box" but yes your right should be battery voltage when reverse selected dead when not

[BlackBMWs]

Ya found them under the U.S. passenger seat side. Blue/yellow I located is 12v constant, reverse or not. I suspect I need to find the lead after the reverse switch. That should be no voltage when the reverse switch is open.


Sent from my iPhone using Tapatalk

[BlackBMWs]

Sweepy, thank you... Actually, rereading my entries above I found Blue / Green. I'll look for Blue / yellow on my 97 if I get a chance this weekend.. Pending completion on the 97 and 98 for the reverse circuit.

Prolly will have a moment on Sunday, unless I can test it at our fix it meet on Saturday.

Sent from my iPhone using Tapatalk

[Sweepy]

Would love to hear how you get on bud, check the splice points next to the column and behind the glove box that's where I found mine and I'm certain yours will be there too

[xxxJohnBoyxxx]

Reverse light wiring connects to the trans sender left side of trans in my 1997. I have pinched this wire between the trans and block while changing a clutch which resulted in reverse lights on 24/7.

Hope this helps

[BlackBMWs]

Thanks guys! Didn't have a chance to work on the car in question this weekend. I'll report back what goes on. It appears I interpreted GE to mean green in the wiring schematic when it's actually yellow. I'm hoping it's that easy.


Sent from my iPhone using Tapatalk

[BlackBMWs]

Update: Found the Blue/Yellow running on my parts car from the firewall inlet from the fusebox (Just over the dead pedal foot rest) down the drivers side back where it splits just above the rear wheelwell and then routes to each taillight assembly.

I first connected the Cali up. As I ran the mirror wiring down the passenger A pilar to the glovebox, I extended it and ran it under the carpet to the drivers side.

Dimming works well and now when I go into reverse, the dimming stops for backing up and seeing where you are going. Cali's now done, I'll do the same for the 97 and 95.

Thanks all, particularly Sweepy!

[Sweepy]

Fantastic news bud glad to hear she's up and undimming