[V8] Window Gremlins

dsaad at icehouse.net dsaad at icehouse.net
Tue Jul 12 11:09:11 EDT 2005


Sounds like the control unit may be toast - but in addition to the other
suggestions, maybe it is the microswitch located on the door key lock inside the
door?
I only offer this because it is a mechanical part that could break in some wierd
way. Control unit failures seem pretty rare - but they do happen. AFAIK, this is
a V8 only part - so it will be expensive and hard to get - making a thourough
debugging worth your time.

To debug - as always - you have to "think like a computer". Any control unit
generates outputs based on inputs. If the inputs are all correct, and the output
is wrong then the control unit is bad - assuming all wireing is as it should be.

If you do end up diagnosing the control unit, carefully remove the cover and
inspect the relays inside. You may get lucky and find a mechanical problem
inside (like a broken spring or pitted contact) that is easily fixed.

Dave

Quoting "Carol, Dave, and Zach Weiss" <cdzweiss at charter.net>:

> Ever see the driver window go up on its own-pull key, get out of car close
> door, 5 minutes later it's 1/3 of the way up, another 10 minutes it's full
> up?  Then every once in a while I hear the motor trying to lift for a
> second, even though the window is up.  I'm thinking this has to be the
> window control unit.  Car is sitting now w/ battery disconnected.
>
>
>
> Does the control unit cross to anything?  200 20V looks like the power relay
> is separate, rather than in the control unit.
>
>
>
> Dave
>
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