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Home >> Chevrolet >> 2015 >> Tahoe SSV >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> Liftgate Window Release Inoperative >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Exterior Liftgate Window Unlatch Switch parameter changes between Active and Inactive when pressing and releasing the S141 Liftgate Window Unlatch Switch.
    • If the parameter does not change 

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

    • If the parameter changes 
  3. Verify the M33 Liftgate Window Latch Assembly releases the liftgate window when pressing and releasing the S141 Liftgate Window Unlatch Switch.
    • If the liftgate window does not release 

      Refer to Circuit/System Testing - Liftgate Window Latch Inoperative.

    • If the liftgate window does release 
  4. All OK.
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