When Monitored and Set Condition:
WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored: With the ignition key on and battery voltage above 10.4 volts.
Set Condition: When switch voltage is less than 0.39 of a volt for 2 minutes.