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Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 405 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B153F: Liftgate Object Sensor Malfunction >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, observe the scan tool Liftgate Object Sensor Supply Status parameter. The reading should be between 3-3.5 V.
    • If not within the specified range, perform the Circuit/System Testing.
  2. Verify the scan tool Liftgate Object Sensor Supply Status parameter is between 3V-3.5V and changes to 2.25-2.75V as the B71R Liftgate Object Sensor - Right is pressed.
    • If the value does not change, test or replace the B71R Liftgate Object Sensor - Right.
  3. Verify the scan tool Liftgate Object Sensor Supply Status parameter is between 3V-3.5V and changes to 2.25-2.75V as the B71L Liftgate Object Sensor - Left is pressed.
    • If the value does not change, test or replace the B71L Liftgate Object Sensor - Left.
  4. Command the liftgate to power close by pressing the B70 liftgate close switch and as the liftgate is closing, press the B71R Liftgate Object Sensor - Right or the B71L Liftgate Object Sensor - Left. The liftgate should stop and power open.
    • If the liftgate continues to power close, replace the K39 Liftgate Control Module.
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