Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify no other DTCs are set.
- If other DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
Verify the liftgate will release and smoothly power open when commanding Liftgate Open with a scan tool.
- If the A23C Liftgate Latch Assembly does not release
  Refer to Liftgate Latch Release/Cinch Malfunction
- If the liftgate releases but does not open
  Refer to Circuit/System Testing - Liftgate Power Open/Close Malfunction
- If the liftgate releases but performs an erratic power open/close motion
  Refer to Circuit/System Testing - Liftgate Erratic Operation
- Go to next step: If the A23C Liftgate Latch Assembly releases
Verify the liftgate will smoothly power close when commanding Liftgate Close with a scan tool.
- If the liftgate does not power close
  Refer to Circuit/System Testing - Liftgate Power Open/Close Malfunction
- If the liftgate performs an erratic open/close motion
  Refer to Circuit/System Testing - Liftgate Erratic Operation
- Go to next step: If the liftgate does smoothly power close
All OK.