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possible cause of window drop failure

  • 2001
  • Boxster
105 000
Electrical and Electronic
Saint Louis, 

Help.  Passenger window fails to drop to clear roof with both inside and outside door handles.  Drivers side works as planned.  Regulator cables are tight without slack.  Pedros push down the window test passes.  No free play.  No motor noise when lifting outer door handle.  Micro switch on outer door handle shows continuity with multimeter when lifting outer door handle.  Plug connector feed to door lock blue w white strip (assumed +) to brown (assumed ground) shows approx 4v at rest (??) and +12V (battery volt) when outer door handle is lifted.  Squeezing/wiggle connector to door lock causes window drop/up/drop/up crazy 1/4 inch motion as if something within the plug or lock circuit is shorted.  Connector looks pristine.  My impulse is a faulty lock but am seeking some feedback from those who know far more about this beast than I prior to parting with hard earned cash.  Can anyone advise further tests??  I appreciate the tech question resource and hope someone is able to light my path ahead.  Best regards.  Chuck Korn




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