GeorgeM

Just arrived at Talladega for a Veterans benefit... put the driver's window up, now it won't go down, nor will the pass side.

I think I can hear a clicking sound from the drivers door, as if a switch on the motor is trying to do something (could be the relay - are the motor relays in the door?)

I stopped at a gas station and pulled the window regulator fuse and the clicking stopped.

Could the driver's window switch be stuck in the closed position, keeping the pass side window from coming down? If I remember right, they can't be operated at the same time.

I will not return home before SITM, so it would be really nice to resolve this today. I'm headed to the car now to remove the driver's switch and check it out.

At least my a/c is working well enough.... it'll be 90 today... no windows and no a/c would definitely be a show stopper.

Thanks.

Landseer

If you need to bypass switches,

Pins 1&2 of 18pin connector along the side firewall for each door represent the respective motors.
(EDIT ...of 12 pin connector for 91 GT)

If you separate the connector, you can scab 12V and ground to those pins.

Reverse them for up v. down.
There is a little thermoprotect switch buried in window motors in each door. Jadz928 and WallyP discuss that in Jadz' window motor repair thread. Not sure if this switch is clicking in/out ... or if there is another method for the motor to prevent moving when at top or bottom of stroke....maybe somebody else knows.




EDIT -- disregard below about relay, 91 GT doesn't have, it has a control module///....
Window relay is VI. Its complex due to input from door pins and I think a timer or circuit to accept timer (?)
Any, I think it can be replaced with a 53 in a pinch; or, bridged 30 to 87 to ensure power flow.
Doesn't sound like its the relay, though.

GeorgeM

Thx Chris. No VI relay in my car... it's empty.

mx22

Window switches are identical, right? If yes, you can probably disconnect driver's switch and see if passenger side window will start working.

Landseer

George,

Sorry, I went to 89 GT diag, not 91.

Your 91 has that separate controller that processes the windows, not a relay in the CE!!!


Still, window motors are terminals 1 & 2 of the door connector. The door connector is 12 pin on your car.

Was rushing, sorry about the inaccuracy.
Edited the original reply to denote the mistakes.


Have fun at the races.

DR

Yes and/or the Sunroof switch too. Try rocking all of them to make sure they aren't physically stuck. Had it happen to me before.

If it is not the switches, stuck or whatever, it is usually one of the small relays bad in the control module....my mind is not 100%, but I recall the control unit is under the drivers seat mounted on the floor.

GeorgeM

Tried swapping the switches, no dice. None of the console switches work, not even the sunroof (the rear wiper works). The window reg control fuse is okay (the rear hatch release must also be on that fuse, and it works)

After piddling around, I hit the pass side switch and the window came down ~6 inches then stopped. and wouldn't go back up.

I had just put the window reg fuse back in, so I pulled it out and replaced it, and was able to get the window back up.

I grit my teeth and tried the window again, and now they both work, but I only operated them up and down for a second or two.

The question is for how long and what was causing the failure in the first place?

Of course now I'm afraid to operate them lest they get stuck again.

Hilton

Don't the 1990+ windows also respond to door lock inputs? I vaguely recall that if you put a key in and hold it in the lock or unlock position, that on the later cars, it'll operate the windows too?

(I could be confusing a few cars including other german marques - but pretty sure that the late 928's have some link between the alarm/locks and window controllers).

Calgary Ole

Sounds like one of the switches could be sticking as DR said. Mine will occasionally "stick on". Relay or door pin was also mentioned. I have a euro 90 where I can turn the key to the back of the car and hold to close sunroof and windows as I hold...might eliminate the relay if that feature works on North American cars

blown 87

If there was only some one kind of close to Talladega who knew anything about 928's.

If you can not get it fixed, we can take a look at it, you might want to stop bringing that pretty red car down south, it does not seem to like it much.

Bill Ball

[QUOTE=DR;8590944]Yes and/or the Sunroof switch too. Try rocking all of them to make sure they aren't physically stuck. Had it happen to me before.

If it is not the switches, stuck or whatever, it is usually one of the small relays bad in the control module....my mind is not 100%, but I recall the control unit is under the drivers seat mounted on the floor.[/QUOTE]Dave:

Your mind is now officially at 100%. Yes, it's under the driver seat, and it can be removed by moving the seat all the way forward and getting at a couple of nuts that hold it down with a bracket. I had a major battle with that controller in a buddy's 90. I'm sure glad my 89 doesn't have one.

GeorgeM

Thanks guys. Looks like I have a gremlin, b/c they're working now.

Last time they were stuck, I pulled/replaced the window regulator fuse, and they started working, at least long enough for me to get the window up. Last night they worked without issue, so we'll see.

I guess I'll deal with it after the trip, unless someone wants to show up with some of those relays, however many there are...

Thanks again for the assistance.

jon928se

George

What Hilton said is correct - turn key to rear of car (and hold it iin that position) in the drivers door and the window controller will close the sunroof, pass window, drivers window. I may have the order wrong but it does one after the other and takes about 40 seconds to do all 3 even if the last one on the list is the only open one. This may help if you have the same problem again and need to close the car up.

DR

George,

Found an old post of mine from 2 years ago with more info on the controller.

Funny I remember always referring to the 90-Window/Sunroof system as the "Batman Feature"...so a quick search for Batman of my posts found this...

Price is probably different, but the part part number will help, because PET never seemed to use the older number installed originally and it was a pain to track it down.

GeorgeM

That's a great tip if they get stuck again gents, thanks. Who knew? I checked it out and it does work. I guess I should re-read my owner's manual. It does take a while to go thru the cycle though, as if all were open and it had to close them, even though only the driver's side was open when I tested it, it took that long.

Thanks for the part# DR. I'll open it up when I get home and check it out... hopefully I won't need to replace it.

Had my 2 sessions at Talladega today. 33deg is a lot of bank, and unless you're above ~90, you really have to steer uphill to stay up there. Once you get going though, the car just hunkers down and almost steers itself. Only got up to 135 due to traffic, but it was pretty fun nonetheless. Took some nerve to go into the turns at that speed, but no prob once I got over it. That said, I'll take a road course anyday, but at least now I can say I've done it.