Re: auto up/down power windows

[Huw Powell <human@nh.ultranet.com>]

> Given that the auto-down unit is designed with the expectation that it is
> sensing the voltage at the motor, the daisy-chain idea may have other
> problems in any case.  Since the auto-down controller has individual pins to
> go to the switch and the motor

neither statement is true of the units I am working with.  They open
until a timer shuts them down (not current change from straining motor),
and they are wired in parallel with the output of the switch (while also
supplying it's input).  this is not to say that other Audis do it
another way.

> 
> You seem to like the function where if you quickly snap the switch to
> activate the auto-down function, while holding the switch down causes the
> control to work as it would on a window without the auto-down functionality.

exactly.  I don't want to make it harder to adjust the window up or down
a little bit, I just want to add the quick touch and ignore feature for
full open and full close.

And to think my car came with manual windows in the first place...


> I guess another option would be to see if there were
> any other marques that had controllers that exhibited the behavior you are
> looking for and then retrofit a controller from one of these cars into yours

That is definitely looming as a possibility.  german cars preferred, but
hey, if a Caddy does it, I'll take it.

<snip>
> Very true ... I'm always finding myself reaching for the window switch in
> the wrong place ... the 4kSQ and QTC have the switches on the console, while
> the 5kCSQ and V8q have them on the driver's door 

Where the switches die a predictable crud and water induced death!

> ... what I am hoping to find is that the auto up/down relay is based on the
> same relay that handles auto down only.   I see signs on the dual-width
> module that this is in fact the case ... there appear to be places on the
> boards where components have not been installed.  If it is possible to
> figure out what parts need to be added it should be a fairly easy thing to
> take any dual-width module and make it work both up & down.  That silly
> module has two circuit boards inside and will take a bit of doing to
> complete the reverse engineering process ...

But think of the massive public acclaim were you achieve this!  What an
excellent how-to that would make, how to scrounge a junked relay, modify
it, and install it, with diagrams of all necessary wiring changes!

-- 
Huw Powell

http://www.thebook.com/human-speakers

82 Audi Coupe; 85 Coupe GT
http://www.nh.ultranet.com/~human