Chrysler, Dodge & Jeep door lock & alarm control interface XK03 is a programmable multi-function door lock & alarm control interface preloaded with upgradeable firmware (CHDL7) for all late model Chrysler, Dodge and Jeep models Primary interface control functions include: Door locks, Driver & passenger sliding door open/close, Factory alarm, Trunk/hatch release, Door pin status output(-) for aftermarket alarm trigger