Trunk Lid Opener Function
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
After "TRUNK" switch of the transmitter is pushed "ON" twice within 5 seconds without ignition key in the key hole, ETACS-ECU makes trunk lid opener actuator open the trunk lid.