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) |
