Blower Fan Issue, Begging For Help

[Zreberlcoe]

It IS a damn strange setup. Easiest place to start I think, is pull back the rubber boot on C101, and locate the Black/Green wire on terminal 15. With C101 left connected, stick a bit of wire in the back of that terminal and jump it to ground. Turn the key on and off and verify proper blower motor operation.



DO NOT CRANK THE ENGINE WITH THE JUMPER IN PLACE!



Fire will result. That circuit is supposed to be a ground at all times EXCEPT when cranking, where it is fed positive battery voltage with no fuse protecting you.





Once you establish that the ground side of the circuit is whats giving you fits, check your connections at the starter. In a pinch, you can connect the Black/Green and Black/Yellow wires to the same terminal and it should work OK. Alternately, you could just permanently ground the Black/Green wire after disconnecting it from the starter.

Hell yeah. So far I've exhausted what I know and it's now just learning. Thank you a ton for the help! When I get started in on the car tonight I'll do this and report back.

[StereoInstaller1]

Classic thing right there...

"My windows don't work"

Your starter is bad

"the fuck you say!"

Serious, no fan or Windows...

"I'll be damned"

[Zreberlcoe]

Starter is brand new Bosch as a little over a year.

[Zreberlcoe]

Alright what I did was jumped terminal 15 on C101 to ground. I turned the key on and the blower fan works properly, but the windows didn't come on.. Is that what I'm looking for? Also the top terminal on the starter, with the 8mm nut is very loose, and with my last starter I aciddently loosened it all the way out, never to work again. Should it be slightly loose?

[Zreberlcoe]

The top terminal on the solenoid is what I'm talking about.

It was backed out and flopping around so it probably is what made the fan flicker on and off. This exact thing happened to my last starter and I mistakingly backed out that stud and never had the starter worked again.

[StereoInstaller1]

Starter is brand new Bosch as a little over a year.

Cool...but just so you know, there have been LOTS of bad reman Bosch units.

Don't confuse "new" for "tested good", especially when dealing with E30s. I tell people all the time "New means new, good means good, that is why there are two different words already made up"

If you haven't actually tested it, don't trust that it's good.

So, now you have tested and have a solid ground signal on K5 and K7, your HVAC fan is working but windows are not...correct?

We can assume you already checked stuff like the window breaker switch, and the key was on, all that kind of thing, right?

Step 1 is the easiest: pull your window breaker switch and use a testlight to see if you have power at that switch, then check fuses. If you have power going through the breaker switch and still no windows, then you get to look at the switches themselves.