E46 Fanatics Forum banner

Pinout for LCM (Light Control Module) Please!!!

51K views 40 replies 19 participants last post by  BMWE5320023l  
I got one wiring diagram from someone on a post I put up a while ago but haven't had a chance to try it out. If you can find the wiring for the rear running lights that will have the same effect. I also have been told the the wires to the fog switch would work but will come off with the highs. i am more inclined to find out where the wiring to the rear tailights are under the dash, and wire it to them. Other wise I was going to try to make a small extension with 2 connectors and a short piece of ribbom cable to be able to splice into the LCM and not cut existing wiring. Keep me posted, hopefully we can get this figured out. Here is the diagram I was sent, doesn't really make sense to me but I haven't looked at it in months. Seems NO ONE else wants to do this, or says it can be done and wont't tell you a way besides running a wire from the tailight up to the front
<br>
<IMG SRC="http://pws.prserv.net/techmonkeyinternational/scan.jpg">

carnage said:
Miamitopaz.... I wanted to get my halo working without the fogs.
From what I've read, the rear fog lights only work when the front ones are on. The same could be done by using the fog as trigger and sticking a switch in between the fog light and the relay. This is probably more for cosmetics.

But thanks for the advice.
 
Only problem with this is that the halos will blink when you hit a turn signal. I thought about this also. I think that basically If you find where the wiring harness from the trunk comes under the dash you can put a relay onto it, or you find the correct wires from the LCM and you can tap there. Thats wh yI was thinking of making an extension that I could start testing wires on the ribbon cable without damaging the cars wiring harness. thanks for looking into this though. I never have enought time on my hands to do this stuff
 
thanks for info mark, where are the wires to the rear parking lights? The front blinkers are the same bulb as the parking lights, at least thats what comes on with the headlight switch in the 1 or 2 position. Ideally the rear parking/running lights would be great, again does anyone know where do these wires run to under the dash?

Canuck328i said:
There are separate bulbs for parking lights and turn signals. Worse case, tap to the licence plate bulb.

Mark
 
Carnage is the man

Finally after having this project in the Garage for a year and half its done. The wires are the same on a 2001 325i. Got it all wired up and put a wire thru the firewall. I pushed a metal coathanger thru the hole from the interior side towards the engine compartment, then taped the wire going to the eye's onto the end of it and pulled it back thru. Thanks for testing this Carnage. I guess I should have just started testing along time ago.