PLEASE help me with my OBC wiring

[Nicholas]

Hi guys, I am installing the multi function OBC in my eta. I have the OBC and the wiring harness. I am just having some trouble figuring out where a few things plug in. I have included a picture with the things that I don't know marked as,"?" Thanks for all your help!

[bwanac]

Let's see what else is needed for the OBC.

One of those will lead to the ambient temperature sensor, not sure which one but only one will connect with it.

The green one leads to the relay box that you should have, it says Sachs on it. Sorry I forget what it is.

I forget the other ones. Have you tried Fred's site? strictlyeta.net He has an article on installing the OBC. It should help you out!

[reelizmpro]

One of the plugs is for the OBC relay (black box) and I believe another one is for temp sensor?

Another is probably for the OBC horn.

[Fred]

The first 3 connectors from the green OBC plug aren't used. I have never seen the yellow one used in any E30, and the other two go to the ECU if you want the CODE feature to work (which most of us don't). Newer OBC harnesses actually don't have those plugs. And the green plug on the right goes into a black box that controls the CODE feature.

[Nicholas]

Thanks guys. I am from Rockland to answer your question. Why don't you guys want the code feature to work? I don't have an alarm and I think it would be a good idea for me to get it to work. I am just not sure of all the things that I have to do to get it to work. THanks again