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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Locks And Vehicle Access - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC B16C5 (Tb4) >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: S13D Door Lock Switch - Driver - Unlock Switch
  3. Operate the component: S45A Liftgate Control Switch - Exterior - Pressed

    Verify the A23C Liftgate Latch will activate and allow the liftgate to be pulled open.

    • If the component does not activate 

      Refer to: Circuit/System Testing

    • Go to next step: If all functions work properly 
  4. A fault is not currently present and may be an intermittent condition
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