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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 Verification

Circuit/System Verification

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Ignition ON, insert the key into the driver's door lock cylinder and observe the scan tool Door Key Cyl. Unlock Switch parameter while turning the key to the UNLOCK position, the parameter should change between Idle and Unlock.

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