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Home >> Chevrolet >> 2014 >> Impala Limited LS >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> Power Windows Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the driver window performs the UP and DOWN functions.
    • If the driver window does not perform the UP or DOWN functions 

      Refer to Circuit/System Testing - Driver Window Inoperative

    • If the driver window performs the UP and DOWN functions 
  3. Verify the passenger window performs the UP and DOWN functions at both the driver and passenger door switches.
    • If the passenger window is inoperative from both the driver and passenger window switches 

      Refer to Circuit/System Testing - Passenger Window Inoperative From Both Switches.

    • If the passenger window is inoperative from the passenger window switch only 

      Refer to Circuit/System Testing - Passenger Window Switch Inoperative.

    • If the passenger window is inoperative from the driver window switch only 

      Test or replace the S79D Window Switch - Driver.

    • If the passenger window performs the UP and DOWN functions at both switches 
  4. Verify the left rear and right rear window performs the UP and DOWN functions at both the driver and each of the rear door switches.
    • If a rear window is inoperative from both the driver and rear window switch 

      Refer to Circuit/System Testing - Rear Window Inoperative From Both Switches

    • If a rear window is inoperative from the rear window switch only 

      Refer to Circuit/System Testing - Rear Window Lockout Malfunction

    • If a rear window is inoperative from the driver window switch only 

      Test or replace the S79D Window Switch - Driver.

    • If the rear window performs the UP and DOWN functions at both the driver and rear window switch 
  5. Lock out the rear window switches by pressing the lockout switch on the driver window switch.
  6. Verify the left rear and right rear windows are inoperative at both of the rear door switches .
    • If both rear windows continue to function from the rear door switches 

      Refer to Circuit/System Testing - Rear Window Lockout Malfunction

    • If both rear windows are inoperative from the rear window switches 
  7. All OK.
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