S52 obdII running. No A/C & PW power. help

[etxxz]

So i have a 88325is and my s52 is running like a champ, my gauge cluster works 100% minus the temp gauge, radio works 100% BUT, none of my climate controls work ~ A/C - recirculate - a/c Speed - Heater as well as Power windows and Sunroof

I did the wiring (see my thread!) but I must have missed power to these components. In the wiring diagrams power comes through fuse 20/20amp to a C204/S230 (pg82) but in my newbness i need someone to give me a hand here. There's C103's all over that page, maybe i disconected something when i took the M20 out....the fuse is okay btw :p

i guess i'd also like to ask where these components are, tried following the ETM's direction but couln't find either...or maybe there's an easier solution. I'm clueless at this point.

Please help me out, anything shor of "you're a noob" is greatly appreciated. ty

-etxx

[DaveSmed]

Forgot to connect the Unloader relays.

[Addissimo]

There are two wires that are near the starter, one should be black/green, the other is black/yellow. You've got the yellow one attached, you need to attach the black/green one. Whatever post on the starter it will fit on is fine.

-Addis

[etxxz]

and i thought that the unloader relays had something to do with my C101 pin 15. Is this wire that you describe in the e30 body harness??? i remember installing a new starter, but all 4 posts were wired exactly as they came. Thanks you two!

[DaveSmed]

and i thought that the unloader relays had something to do with my C101 pin 15. Is this wire that you describe in the e30 body harness??? i remember installing a new starter, but all 4 posts were wired exactly as they came. Thanks you two!

Yup, it's pin 15. Without having any idea how the terminal arrangement of a S52 starter looks, There might either be a dedicated small terminal for it, there might be a small terminal that will still leave the relays inoperative, there might be a big terminal (the one that does not show power at all times, only when cranking) that will work, and the wire from the ignition switch, the little one already connected to the starter will work.


Few different options, pick the easiest and give it a try. My bet is if its a ring terminal for the wire from the ignition, putting a ring terminal on the unloader relay wire and tossing that on there is the way to go. If it is a push on blade, maybe a big ring terminal and the big lug is the way to go. That or try the other little terminal.

[etxxz]

let me edit this post as i solved the problem.

C101 pin 15 goes to '30h' pole of the S52 starter (top pole says 30h next to it)

thanks guys

[DaveSmed]

Good stuff, glad you got it working.