[V8] Window problems

[Peter A. Green]

Armed with a printout from my 'Bentley's, a Volt/Amps/Ohm meter, the suggestions from the e-mails to Greg I decided to tackle my non-operating passenger side window.

+12v appears on pin 4 of the switch
ground appears on pin 5 BUT,
there is open circuit on pin 3 (which should also be at ground).

As a quick fix.... can I join pins 3 and 5 giving a common ground.  It seems an obvious fix... however I have learnt that nothing is obvious on the Pear!
Any BTDT experience or suggestions gratefully received.
Pete
'90 V8Q Pearl