Description of RBS System Components

•RBS control module (1) incorporates a radar sensor and is located behind the radiator grill. The control module judges a potential hazard of the collision sensing the traffic conditions using the radar sensor.
•The radar sensor adopts a millimeter wave radar method and transmits a radio wave from the front of the RBS control module, and measures reflex time of the radio wave from a vehicle ahead. Thus the radar sensor measures the distance, relative speed and direction of the vehicle ahead. Since the radar sensor uses a radio wave, effective detection of a vehicle ahead is possible under the condition of high speed running, at night, in bad weather such as rainy weather or dense fog.
•RBS control module communicates with other control module through CAN communication. For CAN communication, refer to Communication System Description:M16A Model, Communication System Description:K14C Model or Communication System Description:D16AA Model.

•RBS OFF switch is installed on the switch bezel of the instrument panel.
•The switch is of a momentary contact type and pushing the button for about 3 seconds switches the system to ON (RBS OFF light: off) or OFF (RBS OFF light: on).
•The switch signal is outputted to BCM and RBS control module receives RBS OFF switch signal from BCM through CAN communication.
•When ignition is turned “ON” again, the system comes ON (RBS OFF light: off).

•FAR/NEAR setting switch is installed on the switch bezel of the instrument panel.
•The switch is of a push lock contact type and switches the warning timing to FAR (far distance) or NEAR (short distance).
•The switch signal is outputted to BCM and RBS control module receives FAR/NEAR setting switch signal from BCM through CAN communication.
•Even if ignition is turned “ON” again, the state of FAR/NEAR setting switch is maintained.

•ESP^® OFF switch is installed on the switch bezel of the instrument panel.
•When ESP^® control is disabled by operating ESP^® OFF switch, RBS control module receives ESP^® OFF signal and disables RBS control.

•Steering angle sensor is located on the steering column.
•The sensor transmits steering angle signal to RBS control module through CAN communication.

•BCM transmits RBS OFF switch signal, FAR/NEAR setting switch signal, outside air temperature signal, etc. to RBS control module through CAN communication.
•RBS control module uses outside air temperature signal to judge degree of contamination with snow etc. on millimeter wave radar cover.

•ESP^® control module controls brake pressure and brake light relay receiving information from RBS control module through CAN communication.
•ESP^® control module transmits wheel speed signal, yaw rate signal, master cylinder pressure signal, etc. to RBS control module through CAN communication.
•RBS control module uses wheel speed signal for a canceling condition on RBS after actuation of RBS.