Door/Trunk Ajar Indicator/System

Door Ajar Indicator Description and Operation

Door Ajar Indicator System Components
The door ajar indicator system consists of the following components.
- The driver door module (DDM)
- The passenger front door module (PDM)
- The body control module (BCM)
- The instrument panel cluster (IPC)
- The driver information center (DIC)
- The driver door ajar switch
- The passenger door ajar switch
- The left rear door ajar switch
- The right rear door ajar switch

Driver Door Ajar And Passenger Door Ajar
The DDM and PDM receive a discrete input from the respective door ajar switch to indicate the status of the door. The DDM or PDM then communicates this status to the IPC via class 2 message. The IPC, upon receipt of this class 2 message, will illuminate the appropriate door ajar message in the DIC and also send a class 2 message to the radio to activate the door ajar audible warning when the following conditions are met:
- The transmission is removed from PARK
- The vehicle speed is greater then 8.05 km/h (5 mph)

Left Rear Door Ajar And Right Rear Door Ajar
The BCM receives a discrete inputs from both the left and right rear door ajar switches to indicate the status of the doors. The BCM then communicates this status to the IPC via class 2 message. The IPC, upon receipt of this class 2 message, will illuminate the appropriate door ajar message in the DIC and also send a class 2 message to the radio to activate the door ajar audible warning when the following conditions are met:
- The transmission is removed from PARK
- The vehicle speed is greater then 8.05 km/h (5 mph)