Re: Window switch relay question...

[steveb@newkla.kla.com (Steven Buchholz)]

> This is kind of a strange, picky sort of question but here goes.  Ever
> since I have had my '88 5kCST, my window switches and sunroof switch would
> stay lit when I turned the car off.  They would stay on until I opened the
> door, and then I would hear a little "click" from somewhere in the dash and
> off they would go.
> 
> Now the switches stay lit when I open the door and get out, sometimes
> turning off when I lock the door from the outside with the key.  Sometimes
> they stay on even after I lock the door, and remain on for a minute or so.
> 
> What I am wondering is -- which is the correct behavior?  I am assuming
> they should turn off when I lock the doors, am I correct?  If it is in fact
> a relay, is it expensive to replace or fix?
> 
... your initial description was the proper behavior based on the experi-
ence of my car.  My observations on the '88 5kCSTQW is that when the igni-
tion switch is on, the window/sunroof switches are illuminated.  After the 
ignition is switched off the switches remain illuminated for a short period.  
If a switch is actuated all the switches are again illuminated for a few 
seconds.  As soon as either front door is opened the circuit is deactivated.

I suspect that from your description you will be able to roll the windows 
up and down as long as you see the switches illuminated.  I was thinking 
that the problem was due to a malfunction of the door switch, but if this 
were the case the illumination would switch off eventually.  You're problem 
may be that the ignition on signal to the window/sunroof power controller 
is always on or the power controller itself has failed.  The wiring diagram 
in the Bentley manual should give you the info you need.

I don't know if you regularly open the passenger's side door, but if not 
it may be worth a try ... 

HTH!
Steve Buchholz
s_buchho@kla.com
San Jose, CA (USA)