Blind Spot Information System (BLIS)
HINT: The illustration applies to left-hand drive vehicles.
The cameras take 30 pictures per second and compare each picture with the previous one to check for changes. To determine if any changes are significant, the camera module must also know the vehicle speed. To calculate the vehicle speed and know if the vehicle is turning, the speed signals for each rear wheel are used from the Brake control module (BCM). The driver door module (DDM) (3/126) and passenger door module (PDM) (3/127) receive information from the Brake control module (BCM) (4/16), via CAN, about the speed of both rear wheels. Both these signals are then transmitted to the Left Camera Module (LCM) (6/62) and the Right Camera Module (RCM) (6/63) via LIN communication.
If the camera module discovers that there is something in the dead angle, an orange LED, located on the inside of the panel at the front of the window on the door, comes on. This LED is directly connected to the respective camera module.
Blind Spot Information System (BLIS) can be deactivated using one of the switches on the dashboard environment panel. When the switch is pressed, a signal is transmitted from the Climate control module (CCM) (3/112) to the Driver door module (DDM) and Passenger door module (PDM) via CAN. The system is then deactivated until the switch is pressed again or until the next time the vehicle is started.
A diagnostic trouble code (DTC) is stored if a fault is detected by the Driver door module (DDM) and Passenger door module (PDM) and a signal is transmitted via CAN to the Driver information module (DIM) (5/1), which lights the general warning lamp and displays a text message.