[BMWCSRegistry] Window relay circuit (was temperature gauge)

knowtree at aloha.com knowtree at aloha.com
Mon Jan 8 21:12:17 EST 2007


 "Peavey, Charlie" <CPeavey at HPTI.com> wrote:
> Bill,
> 
> That is a feature added to at least the '74 model (possibly earlier?). 
> There is a relay to power the windows, actuated by the driver's door
> switch (same one that turns on the interior light).  Obviously, the idea
> was to make it more convenient when you shut off the engine and then
> realize you forgot to roll up the windows.  You just open the driver's
> door, and the window circuits are energized.  You should be able to
> operate them with the door closed but the ignition on as well.  I
> believe the ignition switch also energizes that relay.  The relay is
> under the dash, near the hood release lever.  

So I was not under the spell of a menehune (Hawaiian prankster ghost). When
I got the car everything worked fine. One day the windows stopped working,
but every time I worked on it, they worked. That's because while I was
working on it the door was open. Next day, on the way to work, window would
not go down. I assumed I had cross connected the window power to the
interior light, but could not imagine how I had managed to make such a mess.

Gary Dunn
Honolulu




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