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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 196 (Vehicle Access System) >> Diagnostic Information and Procedures >> DTC B153F - Liftgate Object Sensor Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate B71 Liftgate Object Sensor.
  2. Test for 8k-12k Ω between the signal terminal 1 and the low reference circuit terminal 2.
    • If not between 8k-12k 

      Replace the B71 Liftgate Object Sensor.

    • Go to next step: If between 8k-12k Ω 
  3. All OK
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