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Home >> Buick >> 2014 >> Verano Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> Trunk Release Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Interior Trunk Lid/Liftgate Window Unlatch Switch parameter changes between Active and Inactive when pressing and releasing the S58 Rear Compartment Lid Unlatch Switch.
    • If the parameter does not change 

      Refer to Circuit/System Testing - Trunk Release Switch Inoperative

    • If the parameter changes 
  3. Verify the M40 Rear Compartment Lid Latch functions when commanding the Trunk Lid Unlatch with a scan tool.
    • If the M40 Rear Compartment Lid Latch does not UNLATCH 

      Refer to Circuit/System Testing - Release Actuator Inoperative

    • If the M40 Rear Compartment Lid Latch does UNLATCH 
  4. All OK.
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