Full Open Switch: Operation
WARNING: This page is about a different car, the 2004 Dodge Grand Caravan, 2004 Dodge Caravan, and 2004 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
The full open switch is triggered by a pawl lever in the hold open latch. When the full open switch is closed (circuit to ground) the ratchet has engaged on the hold open striker and the pawl lever has engaged on the ratchet, locking the latch from opening and holding the door in the full open position.