final wiring (blower/windows) issues

[cbusrehab]

I just thought I would post to see if anyone has any better suggestions as I try to figure this out with the wiring diagrams.

I put an s50 into a 91 325iA. 5speed swap on m20 was done by prior owner. S50 starts up and runs fine but the windows/sunroof and fan blower don't work and the brake lining light is lit. So I thought fine its either the 15 pin on the connectors or the black/green wire isn't connected correctly to starter. Checked all of that and it's correct. Then I thought maybe relays are bad, so I replaced K5 and K7 relays and still have the same problem. I've checked and rechecked the grounds.

I doubled checked to make sure the DME was grounded and it is. When working in glove box I found 2 connectors that had run to m20 wiring harness just before it connects to DME that I had forgot about. I know in earlier models this is needed for instruments and such. Mine is 91 and my tach etc works fine, not sure what they were for on my car (can't find them in ETM). I unexpectedly grounded one connector (wire that is green/black) and windows and blower started working with car running, but the brake lining light was still on. However, this blew the #10 fuse. I tried tracing #10 fuse and can't figure out why this wire would blow that fuse. I searched for fuse 10 issues and checked to make sure my reverse light wires aren't grounding on the body, they are fine.

I've got more ETM wiring diagrams to look at just thought I would check for opinions. Maybe something easy that I'm overlooking.

Thanks for any help/thoughts.

[herlsy]

I had this issue after i did my swap, i narrowed it down to a shitty rebuilt Autozone starter. The unloader signal was not being grounded through the starter housing as it should. Where did you ground the green/black wire at?

The connector in the glovebox is usually the AC input controls for the DME.

As far as the brake lining light, have you looked at your brake pad sensors?

[cbusrehab]

Damn, I'm pretty sure the guy I bought the motor from said he got a new starter from autozone. I attached the green/black wire to the terminal to the left of the power terminal on the starter. What did you end up doing to fix it?

The brake lining sensors were working fine before I did the swap, I'll check them again though.

[herlsy]

Man i had bought one at autozone first, covered under warranty so i painfully took everything apart again, exchanged starters, same thing.

I did the same thing as you, just added a jumper wire from the unloader terminal 30h to the large one that has the braided style wire.

[cbusrehab]

Well that was the problem. Jumped the 30h to the braided terminal like you said and everything works and brake lining light is off. Unbelievable. I'll keep this in mind next time I need any replacement parts.

Herlsy, thanks for your help this was driving me crazy!

[herlsy]

Glad that worked out for ya!

[Wishno87]

I seem to be having this same problem. Does anyone have a picture of what the solution looks like?

Maybe draw something over this?

[singh336]

jump /c onnect the green and black to the bottom braided , which.. in relation to the orientation of your picture would be on the bottom, the only one you did not mark up with ms paint

[Wishno87]

jump /c onnect the green and black to the bottom braided , which.. in relation to the orientation of your picture would be on the bottom, the only one you did not mark up with ms paint

Worked great! Thanks!