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Next ur-quattro upgrade
In message <199706302013.NAA00568@sled> email@example.com (Steven Buchholz) writes:
> ... I don't have the 20V urQ wiring diagram, but I am familiar with the
> later model 5ks, 200s and v8qs ... there is a single line that goes from
> the door controller to the sunroof circuit, but the sole purpose is to
> provide power. The auto up/down window controller is connected to the
> ignition switch and front door switches, and will supply power for the
> windows and sunroof while the ignition is on, and after the ignition is
> turned off until one of the front doors is open. Yes, I know that the
> urQ only has front doors ...
According to the wiring diagram, the "sunroof/electric windows" controller in
the ur-quattro is only sensitive to the front _left_ door. I assume this is
actually different for RHD cars?
The pins I see on the ur-quattro diagram:
1/15 Black/blue to the X line
2/30 Red/black via 20A thermal cut-out to +ve
4/61 Blue to voltage regulator (and pin 15 of ABS controller).
5/TK1 Brown/white to door switch
8/87 Red/blue power to window switches for switch operation
11/87a Brown/white chassis return to window switch for normal operation
12/86 White/yellow to motor
13/85 Black/red to motor
14/31 Chassis ground
15/87b Yellow/brown chassis return to window switch for normal operation
Now - we need to attach four wires to control the other window. Two of these
would be a white and a black/green to the other motor, and two would be the
chassis returns for normal operation of the other motor. I'm loath to consider
putting in two controllers if this thing is actually prepared for operating two
windows. If, as you say, only a power connection goes off to the sunroof, then
there are enough pins left to drive another window.
Committee Member, UK Audi [ur-]quattro Owners Club