FCW

System Description


SYSTEM DIAGRAM






ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

Input Signal Item






Output Signal Item






DESCRIPTION
- The Forward Collision Warning (FCW) system will warn the driver by a warning lamp (vehicle ahead detection indicator) and chime when own vehicle is getting close to the vehicle ahead in the traveling lane.
- The FCW system will function when own vehicle is driven at speeds of approximately 15 km/h (10 MPH) and above.

NOTE:
The FCW system shares the diagnosis function with ICC system.

FUNCTION DESCRIPTION
The distance from the vehicle ahead and a relative speed are calculated by using the ICC sensor and an ICC sensor signal is transmitted to the ADAS control unit via ITS communication. When judging the necessity of warning according to the received ICC sensor signal, the ADAS control unit transmits a buzzer output signal and meter display signal to the combination meter via CAN communication.

FCW Operating Condition
- Warning systems ON indicator: ON
- Vehicle speed: Approximately 15 km/h (10 MPH) and above.

Fail-safe Indication






FCW INITIAL STATE CHANGE

CAUTION:
Never change FCW initial state "ON" => "OFF" without the consent of the customer.
FCW initial state can be changed.
- FCW initial ON* - FCW function is automatically turned ON, when the ignition switch OFF => ON.
- FCW initial OFF - FCW function is still OFF when the ignition switch OFF => ON.
*: Factory setting

How to change FCW/LDW/BSW initial state
1. Turn ignition switch ON.
2. Warning systems switch is OFF.
3. Push and hold warning systems switch for more than 4 seconds.
4. Buzzer sounds and blinking of the warning systems ON indicator informs that the FCW/LDW/BSW initial state change is completed.