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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Liftgate Release Malfunction (With TB5) >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the A23C Liftgate Latch Assembly releases the liftgate when pressing the S46B Liftgate Unlatch Switch.
    • If the A23C Liftgate Latch Assembly does not release 

      Refer to Circuit/System Testing - Liftgate Release Inoperative.

    • Go to next step: If the A23C Liftgate Latch Assembly does release 
  3. Verify the A23C Liftgate Latch Assembly cinches the liftgate to the fully closed position while gently pushing the liftgate closed.
    • If the A23C Liftgate Latch Assembly does not cinch 

      Refer to Circuit/System Testing - Liftgate Cinch Inoperative.

    • Go to next step: If the A23C Liftgate Latch Assembly cinch works 
  4. All OK.
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