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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1780 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Power Liftgate Malfunction (Liftgate Interior Release Open/Close Switch Malfunction) >> Component Testing
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Component Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the interior liftgate control switch.
  2. Test for infinite resistance between the signal terminal D and the ground terminal C with the liftgate open switch in the inactive position.
    • If not the specified value, replace the interior liftgate control switch.
  3. Test for less than 3 Ω between the signal terminal D and the ground terminal C with the liftgate open switch in the active position.
    • If greater than the specified range, replace the interior liftgate control switch.
  4. Test for infinite resistance between the signal terminal A and the ground terminal C with the liftgate disable switch in the inactive position.
    • If not the specified value, replace the interior liftgate control switch.
  5. Test for less than 3 Ω between the signal terminal A and the ground terminal C with the switch in the disable position
    • If greater than the specified range, replace the interior liftgate control switch.
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