Dakota 4WD V6-3.9L VIN X (1997)
Door Sensor/Switch (For Alarm): Description and Operation
SYSTEM OPERATION
Door Jamb Switch
The door jamb switches are mounted to the door hinge pillars. The switches close a path to ground for the Central Timer Module (CTM) when a
door is opened, and open when a door is closed.
The door jamb switches cannot be repaired and, if faulty or damaged, they must be replaced.
CIRCUIT OPERATION
Door Ajar Switches
The Vehicle Theft Security System (VTSS) uses the door ajar switches to provide an input to the Central Timer Module (CTM). These switches
are normally OPEN with the doors closed. When a door is opened the switch CLOSES completing a path to ground. Circuit G16 is used to
monitor the doors.
Disarm Switches
Circuit G69 connects from the Central Timer Module (CTM) to the disarm switches located in the vehicle doors. These switches are normally
OPEN.
When the switch CLOSES a ground path is completed through the switch to circuit Z1. When the CTM senses a ground path on this circuit is turns
the system OFF.
