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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1970 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Liftgate Full Open Switch Malfunction - DTC B153B >> Circuit/System Verification
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Circuit/System Verification

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  1. Ignition ON, observe the scan tool LGM Full Open Switch parameter while opening and closing the liftgate. The parameter should change between Active and Inactive.
    • If the value does not change, perform the Circuit/System Testing.
  2. With the liftgate closed, command the liftgate to power open by pressing the liftgate handle switch. The liftgate should power open.
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