Security Alarm Module (SAM) Inputs

SAM Inputs:

The Security Alarm Module (SAM) system has the following inputs:

Battery Feed (Pins #18 and 21)
This input provides the module with voltage needed for proper ignition-off operation. The voltage also allows the module to trigger the alarm if an unauthorized entry is detected. The battery voltage on pin #21 is used as a source for the park and tail lamp output voltage. The feed is also utilized for the C2D bias voltage that will "power up" the bus if there is an unauthorized entry.

Ignition Accessory Feed (Pin #19)
This input provides the module with voltage to indicate that the key is still in the ignition. This input, when toggled on and off three times, allows the technician to enter the SAM diagnostic mode.

Ignition Run and Start Feed (Pin #6)
This input provides the module with voltage to indicate that the vehicle is in a run, or start, condition.

Door Latch Switches (Pin #16)
This circuit is normally supplied with a 12 volt feed. When a door latch switch closes, the voltage in the circuit drops to 1 volt or less. The SAM sees the lower voltage as a "door open", and arms the system. SAM also uses this input to detect an unauthorized entry to the vehicle has occurred.

Keyless Arming Input (pin #10)
This circuit is normally supplied with 12 volts. When exiting the vehicle while the keyless entry system is toggled, the keyless entry module will ground this pin, bringing the circuit voltage to less than 1 volt, arming the system.

Disarm Input (pin #15)
The SAM Remote Keyless Module's disarm signal is on this pin terminal. This circuit is normally supplied with a 12 volt feed. When the SAM transmitter is pressed to disarm SAM the Remote Keyless Module toggles pin #15 to 1 volt or less, disarming the system.