LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC P257D-P257F >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: Open and close the hood.

    Verify the scan tool parameter: Engine Hood Switch = Open & Closed

    • If the parameter state does not change 

      Refer to Circuit/System Testing

    • Go to next step: If the parameter state changes 
  3. A fault is not currently present and may be an intermittent condition
scientia non olet · About LEMON Manuals