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Home >> Buick >> 2021 >> Envision Essence, FWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B1592 >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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: E7AC Rear License Plate Lamp Module - 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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