Yukon/Denali 4WD V8-5.3L VIN T (2004)
Door Switch: Description and Operation
CONTENT THEFT DETERRENT (CTD) DESCRIPTION AND OPERATION
Door Latch (Door Jamb) Switches
The theft deterrent system uses the door key switch as one method in order to activate the alarm. If the BCM detects any door opening before the
BCM receives a disarm input, the alarm mode activates.
