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Home >> Buick >> 2019 >> Envision Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Lock Control System >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On / Vehicle - In Service Mode
  2. Verify the scan tool parameter: Brake Pedal Applied = Inactive
    • Go to next step: If the specified state 
  3. Operate the component: Brake Pedal - Pressed

    Operate the component: S3 Transmission Shift Lever - Park & Drive

    • If not the specified state 

      Refer to: Circuit/System Testing

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