Circuit/System Description

The door module(s) receive a discreet input from the door ajar switch. When the door is open, the door ajar switch is closed. This grounds the door ajar switch signal circuit to the door module. The IPC and the IRC receives the status of the door ajar switch from the door module via a serial data message. When the door is open and the vehicle is in any gear other than park, the DIC displays the door ajar message.