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Home >> Cadillac >> 2019 >> XTS Base >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> Trunk Release Malfunction >> Circuit/System Verification

Circuit/System Verification

  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:S58A Rear Compartment Lid Unlatch Switch - Exterior - 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. Verify the scan tool parameter:Interior Liftgate/Liftgate Window Unlatch Switch=Inactive
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If the specified state 
  5. Operate the component:S58B Rear Compartment Lid Unlatch Switch - Interior - Pressed

    Verify the scan tool parameter:Interior Liftgate/Liftgate Window Unlatch Switch=Active

    • If not the specified state 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If the specified state 
  6. Perform the scan tool control function:Trunk Lid Unlatch Command - Unlatch

    Verify a click can be heard or felt at the component when the scan tool control function was commanded:M40 Rear Compartment Lid Latch

    • If a click cannot be heard or felt 

      Refer to: Circuit/System Testing - Test 3

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