When Monitored and Set Condition:
WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored: When the ignition is on, the ACM monitors the voltage of the Passenger Squib 1 circuits.
Set Condition: The ACM has detected high voltage on the Passenger Squib 1 circuits.