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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 192 (Door Lock Systems & Door Handles) >> Diagnostic Information and Procedures >> Power Door Lock Key Cylinder Switches Inoperative >> Circuit/System Description

Circuit/System Description

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The key cylinder unlock feature will unlock the driver door only with a single turn to the unlock position and all of the doors when the driver door switch (DDS) receives two consecutive turns to the unlock position and will send a request to the passenger door switch (PDS) and the BCM to unlock all of the doors.

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