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Home › Chevrolet › 2021 › Traverse LS, FWD › Repair and Diagnosis › Body & Frame › Body, Cab Control Systems › Vehicle Access System › Diagnostic Information and Procedures › DTC B1474 or B3849 › Circuit/System Verification

Circuit/System Verification

  1. Ignition - On / Vehicle - In Service Mode
  2. Verify the scan tool parameter: Exterior Driver Door Handle Switch = Inactive
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  3. Operate the component: B27D Door Handle Switch - Driver Exterior - Pressed

    Verify the scan tool parameter: Exterior Driver Door Handle Switch = Active

    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  4. Verify the scan tool parameter: Exterior Passenger Door Handle Switch = Inactive
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  5. Operate the component: B27P Door Handle Switch - Passenger Exterior - Pressed

    Verify the scan tool parameter: Exterior Passenger Door Handle Switch = Active

    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  6. All OK.
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