My car is 1993 Audi V8 4.2 Quattro, RHD, with 58k miles.

My passenger side front window does not go down. I have checked all of the switches and they are working fine.

When I press close on either switch for that front window I can see the motor drawing power; however, no power is drawn when I press down on either switch for the passenger side front window (which makes me think there is a bad connection somewhere)?

When I take the plugs off the back of the switches I have the following: -

Front Passenger Door Switch -
1.
2. Live
3.
4. Live
5.

Front Drivers Door Switch For Front Passenger Window -
1.
2.
3.
4. Live
5.

For comparison, I tested the drivers side rear window switch (which is working correctly) -

Front Drivers Door Switch For Drivers Side Rear Window -
1. Live
2. Live
3.
4. Live
5.

What could be the problem?