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Home >> Chevrolet >> 2007 >> Uplander Base, 3.9 1 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Fixed & MOVEABLE Window Systems >> Diagnostic Information and Procedures >> Power Window Express Down Function Inoperative >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition ON, command the driver window UP and DOWN by pressing down and pulling up on the driver window switch. The driver window should roll down and up as commanded.
  2. Press AUTO past the first detent on the driver window switch and release, the driver window should roll completely down.
    • If the window fails to roll completely down, test or replace the driver window switch.
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