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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Vehicle Access - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC B19C8 or B19C9 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Verify the scan tool parameter: Left Front Door Exterior Lock/Unlock Switch Status = 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: A24D Front Side Door Outside Handle - Left - Pressed

    Verify the scan tool parameter: Left Front Door Exterior Lock/Unlock Switch Status = 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: Right Front Door Exterior Lock/Unlock Switch Status = 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: A24P Front Side Door Outside Handle - Right - Pressed

    Verify the scan tool parameter: Right Front Door Exterior Lock/Unlock Switch Status = Active

    • If not the specified state 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If the specified state 
  6. A fault is not currently present and may be an intermittent condition
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