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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Power Door Lock System And Release Systems) >> Diagnostic Information And Procedures >> Liftgate Release Malfunction (Without TB5) >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify the scan tool parameter: Trunk Lid/Liftgate Window Exterior Unlatch Switch = Inactive
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the specified state 
  3. Operate the component: S46B Liftgate Unlatch Switch - Pressed

    Verify the scan tool parameter: Trunk Lid/Liftgate Window Exterior Unlatch Switch = Active

    • If not the specified state 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the specified state 
  4. Operate the component: S46B Liftgate Unlatch Switch - Pressed

    Verify a click can be heard or felt at the component when it is turned On and Off: M30 Liftgate Latch

    • If a click cannot be heard or felt 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If a click can be heard or felt 
  5. All OK.
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