Wiring delete - identification help

[Mr Two]

My car is getting a full color change right now, so I've decided to delete all the unneeded wiring and clean and rewrap the harness. The friction tape has made it all nasty and dirty, and I can't have that in a freshly painted interior since I'll be running minimal carpeting. I'll be doing a full writeup when I'm done. For now, can anyone help me identify these? (S52 swapped late model car, so any M20 stuff left on the body harness has been sitting unplugged for a while)



Several white connectors, a black cylindrical connector with three large pins and several small ones, a large blue connector and a black connector not pictured that I remember going to the cluster. Not sure if the blue connector here is the one that goes to the cluster, or if its the one on the body harness. This whole harness is separate from the main body harness.




Another separate small harness. I can identify the yellow and black pointy thingy as the ambient temp sensor. I have no idea about the other connectors, pretty sure most of them were not plugged in.




These three pin connectors look familiar to anyone?



This was part of the body harness that chills in front of the firewall, in the engine bay. It was sitting unplugged on my car.



I've been depinning the connectors at the fuse box, and competely deleting all the wiring to things like fog lights and SRS.

[Hick]

4th pic is for the AC compressor

[Mr Two]

Now completely removed. So far I've ditched the wiring for the fog lights, aux fan, horns, AC comp, washer pump and level sensor, and the power antenna. Probably not fucking with much else, aside from anything redundant on those two separate harnesses.

[MattM]

ETM's are your friend..

http://wedophones.com/BMWManualsLead.htm

[Mr Two]

I've been using that, its just a pain trying to find out what a connector goes to when its been sitting unplugged since you've owned the car. I just don't want to delete anything I may want to add later

[nick526]

Thanks for that link, Matt! Been looking for this for a couple weeks now.

[glucklich21]

I recently just finished my harness. This was the night I got it out.

My car is getting a full color change right now, so I've decided to delete all the unneeded wiring and clean and rewrap the harness. The friction tape has made it all nasty and dirty, and I can't have that in a freshly painted interior since I'll be running minimal carpeting. I'll be doing a full writeup when I'm done. For now, can anyone help me identify these? (S52 swapped late model car, so any M20 stuff left on the body harness has been sitting unplugged for a while)



Several white connectors, a black cylindrical connector with three large pins and several small ones, a large blue connector and a black connector not pictured that I remember going to the cluster. Not sure if the blue connector here is the one that goes to the cluster, or if its the one on the body harness. This whole harness is separate from the main body harness.

This is the cruise control harness.




Another separate small harness. I can identify the yellow and black pointy thingy as the ambient temp sensor. I have no idea about the other connectors, pretty sure most of them were not plugged in.

13 button harness




These three pin connectors look familiar to anyone?

No clue. I couldn't find it in the ETM and I left it alone. I figured it was for the power top or something




This was part of the body harness that chills in front of the firewall, in the engine bay. It was sitting unplugged on my car.

Could be a few things depending on where it is. If it's coming out of the side of the fuse box, and separate from the rest of the engine bay side of the harness then there's a good chance it's for the low brake fluid sensor. If not it can be a bunch of things. Everything from the fogs, to the headlights, the markers, horn, etc. Those pins are used in a lot of places.



I've been depinning the connectors at the fuse box, and competely deleting all the wiring to things like fog lights and SRS.

I deleted the SRS out of mine. There's 4 wires that are physically part of the main harness that are connected to a orange connector. A violet wire goes to the check panel connector and I believe it's pin 6. A white/black wire goes all the way to the C101 connector, pin 16. A brown/black wire also goes to the check panel to pin 7. And lastly a black/green from splice S233.

To be honest, if you don't know any of these connectors or wires do you shouldn't be attempting this. It's a very tedious job that you'll be spending hours on pouring over diagrams checking and double checking. You need to get the ETM and do some studying before you go any farther. This isn't something you can just dive into blind. But that's just my .02.

[Mr Two]

I used the ETM and some intuition to figure out what to delete.

I think half of those plugs for the OBC were unplugged. I'll look up where they go and decide what to keep - thanks for that.

So that whole harness with the blue connector is for cruise control? I'm guessing the blue box I had under the dash labeled VDO was the cruise control brain or something? Out it goes!

It was tedious, but not difficult. I just made sure to trace the wires all the way to their source before I snipped them.

[nando]

if you cut off the black connector for CC that goes into the cluster, you want to sell it to me?

[Mr Two]

Sure, but I wont have a chance to get out and ship anything for a little while.

[nando]

Lmk