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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B16C5 (TC2) >> Circuit/System Verification

Circuit/System Verification

  1. Verify the S45 Liftgate Control Switch is set to the Off setting.
  2. Liftgate closed and latched, verify the A23C Liftgate Latch will activate and release the liftgate when pressing the E7AC Rear License Plate Lamp Module.
    • If the liftgate does not release when pressing the E7AC Rear License Plate Lamp Module 

      Refer to Circuit/System Testing

    • Go to next step: If the liftgate does release when pressing the E7AC Rear License Plate Lamp Module 
  3. A fault is not currently present and may be an intermittent condition