Problem for you electrical types...

[amalventano at sc.rr.com (Allyn)]

Larry,
sounds like you're right on so far (thoughts on high resistance, etc).
heres what you need to do:
take your voltage checks with the circuit in action. have someone hold the 
switch in the down position, then take your voltage checks. i would take a 
quick check at the motor (likely zero or low voltage - if the window isnt 
moving). then simply trace your way back. take checks along the series 
circuit. something has to be dropping the voltage. don't discount anything. 
it could be as far back as the fuse panel, though the more likely place 
would anywhere between the switch and the motor (as it is direction/polarity 
sensitive). also, it could be something with the wiring/motor such that the 
circuit is only open when the motor tries to move the window downward 
(intermittent opens are funky like that, especially in old connectors).
Al

----- Original Message ----- 
From: "Larry Fry" <rocco16@sbcglobal.net>
To: <scirocco-l@scirocco.org>
Sent: Monday, September 06, 2004 1:56 PM
Subject: Problem for you electrical types...


> Ref:  16v MkII.
>
>  Passenger side power window only went "down" intermittantly for a few
> days, then stopped completely.  Goes 'up' fine, using either switch 
> (d-side
> or p-side), but won't go down using either switch.
>  Two leads going to p-side motor.  Disconnecting these leads from the
> switch and connecting to 12v battery will run the motor/window up and down
> with alacrity, so the motor is good.  Putting a VOA meter on the switch 
> side
> of these two leads show +12.4vdc or -12.4vdc, depending on position of the
> switch.  I thought the p-side switch may have too high internal 
> resistance,
> thereby keeping proper amperage from flowing through from either switch, 
> so
> I bought a new switch and installed it.  Everything still the same.... :(
>  Ignoring the $60 switch that didn't cure the problem, this is getting to
> me...
> This is the only thing on the car that doesn't work and
> I...can't...stand...it.
>  Any suggestions from you guys??
>
> Larry
> sandiego16v
>
>
>
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