Arm/Disarm Switch: Description and Operation

CIRCUIT OPERATION
There are two switches used to ARM and DISARM the system. They are located in the left front and right front doors. These switches use resistors internal to the switch to send a signal to the Body Control Module (BCM) on the operators request. Power for the switches is supplied on circuit M1. This circuit is the Ignition Off-Draw (IOD) circuit and is protected by a 10 Amp fuse located in cavity 5 of the junction block.

When the operator has selected the ARM or DISARM function voltage is supplied on circuit M1 through the CLOSED contacts in the switch, through the appropriate resistor, to the BCM. Circuit G73 is used as an input to the BCM for the left door switch, and circuit G72 is used for the right door switch.