Sierra Denali RWD V8-6.2L (2009)
Door/Trunk Ajar Indicator/Lamp: Description and Operation
Door Ajar Indicator Description and Operation (w/AN3)
Door Ajar Indicator Description and Operation (w/AN3)
Door Ajar Indicator System Components
The door ajar indicator system consists of the following components:
*
The driver door switch (DDS)
*
The passenger door switch (PDS)
*
The body control module (BCM)
*
The instrument panel cluster (IPC)
*
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 driver door switch (DDS) and passenger door switch (PDS) receive a discrete input from the respective door ajar switch to indicate the status of the
door. The DDS or PDS then communicates this status to the instrument panel cluster (IPC) via GMLAN message. The IPC, upon receipt of this GMLAN
message, will illuminate the appropriate door ajar message in the driver information center (DIC) and also send a GMLAN 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 body control module (BCM) receives a discrete inputs from both the left and right rear door ajar switches to indicate the status of the rear doors. The
BCM then communicates this status to the instrument panel cluster (IPC) via GMLAN message. The IPC, upon receipt of this GMLAN message, will
illuminate the appropriate door ajar message in the driver information center (DIC) and also send a GMLAN 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)
