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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Locks And Vehicle Access - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC B1C57 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: Liftgate - Open & Close

    Verify the liftgate performs the power open and close functions

    • If not the specified state 

      Refer to: Circuit/System Testing

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