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Home >> Chevrolet >> 2009 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B153A >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the liftgate closed, observe the scan tool Liftgate Latch Pawl, Ratchet, and Sector Switch parameters. Each parameter status should be as listed below:
    • LGM Latch Pawl Sw parameter - Inactive
    • LGM Latch Ratchet Sw. parameter - Inactive
    • Liftgate Latch Sector Switch parameter - Inactive
  2. With the liftgate open, observe the scan tool Liftgate Latch Pawl, Ratchet, and Sector Switch parameters. Each parameter status should be as listed below:
    • LGM Latch Pawl Sw parameter - Active
    • LGM Latch Ratchet Sw. parameter - Active
    • LGM Latch Sector Sw. parameter - Inactive
  3. Sector Switch Test - Close the liftgate allowing the cinch motor to pull the liftgate closed. Observing the scan tool LGM Latch Sector Sw. parameter while the liftgate is being automatically cinched closed; the parameter should change from Inactive to Active then back to Inactive within 10 seconds.