BLIND SPOT MONITOR SYSTEM


  1. FUNCTION OF MAIN COMPONENTS


    1. The components have the following functions:

      Component Function
      Blind Spot Monitor Sensor LH and RH

      • Radiate radar waves from the blind spot monitor sensor to the blind spot sensor detection area, use the reflected millimeter waves for detecting the presence of a vehicle, the vehicle-to-vehicle distance and the relative speed, and then transmit this information to the built-in signal processing circuit.

      • The signal processing circuit determines if a vehicle is present in the detection area, and illuminates or blinks the outer rear view mirror indicator light accordingly.
      Blind Spot Monitor Main Switch Pressing the blind spot monitor main switch turns the blind spot monitor system on or off.
      Outer Rear View Mirror Assembly LH and RH Outer Rear View Mirror Indicator Light

      • Illuminates to inform the driver that a vehicle has been detected in the blind spot detection area (blind spot monitor function).

      • Blinks to inform the driver when the turn signal lever is operated if a vehicle has been detected in the blind spot detection area (blind spot monitor function).

      • Blinks when another vehicle is detected in the alert area while the vehicle is backing up (RCTA function).
      Headlight Dimmer Switch Assembly Transmits the turn signal operation signal to the combination meter assembly.
      Combination Meter Assembly Transmits the turn signal switch signal to the blind spot monitor sensors LH and RH.
      Combination Meter Assembly Multi-information Display Displays "Blind Spot Monitor System Malfunction" when the blind spot monitor system malfunctions and "Blind Spot Monitor Unavailable" when the system cannot be used temporarily to inform the driver.
      Steering Sensor Transmits the steering angle signal to the blind spot monitor sensors LH and RH.
      Skid Control ECU Transmits the vehicle speed signal to the blind spot monitor sensors LH and RH.
      Speed Sensor Detects the wheel speed of each of the 4 wheels.
      Main Body ECU (Multiplex Network Body ECU) Transmits the destination signal to the blind spot monitor sensors LH and RH.
      ECM Transmits the reverse signal to the blind spot monitor sensors LH and RH.
      RCTA Buzzer Sounds when a vehicle is detected in the alert area while backing up.
      Multi-display Assembly Receives visual signals from the rear television camera assembly*1 or parking assist ECU*2, and displays them.
      Rear Television Camera Assembly*1

      • Captures images of the area behind the vehicle.

      • The RCTA icon is superimposed on the captured image. Then, the image is sent to the multi-display assembly as video signals.
      Parking Assist ECU*2 The RCTA icon is superimposed on the captured image. Then, the image is sent to the multi-display assembly as video signals.

      *1: Models with parking assist monitor system

      *2: Models with panoramic view monitor system

  2. SYSTEM CONTROL


    1. Operating Condition (Blind Spot Monitor Function)


      1. The blind spot monitor function operates when both of the following conditions are met:


        • The blind spot monitor main switch is on.

        • The shift lever is in a position other than R.

        • The vehicle speed is greater than approximately 16 km/h (10 mph).

      2. The blind spot monitor function can detect vehicles in its detection areas.


        • The detection areas formed by the blind spot monitor sensors LH and RH are as shown below:

          B002FSVC01
          *a 3.0 m (9.8 ft.) *b 1.0 m (3.3 ft.)
          *c 0.5 m (1.6 ft.) - -
          B008G8T Detection Area - -

      3. The following are examples of the operation of the function:


        • This vehicle is overtaken by another vehicle in the adjacent lane.

          B002F9NC01
          *a Other Vehicle *b This Vehicle
          B008G4C Vehicle Speed (Fast) B008G7R Vehicle Speed (Slow)
          B008G8T Detection Area - -

        • When another vehicle enters the detection area of this vehicle due to a lane change.

          B002FBIC01
          *a Other Vehicle *b This Vehicle
          *c Other vehicle enters the detection area during lane change (merge in) (Type 1). *d Other vehicle enters the detection area during lane change (merge in) (Type 2).
          B008G4C Motion Direction of Other Vehicle B008G7R Motion Direction of This Vehicle
          B008G8T Detection Area - -

    2. Operating Condition (RCTA Function)


      1. The RCTA function operates when all of the following conditions are met:


        • The RCTA function is on.

        • The shift lever is in R.

        • The speed of this vehicle is less than approximately 8 km/h (5 mph).

        • Target vehicle's speed is between approximately 8 km/h (5 mph) and 28 km/h (18 mph).

      2. The RCTA function can detect vehicles in its detection areas.


        • The system continuously measures the relative speed of an approaching vehicle and its distance. If it is determined that the approaching vehicle will cross in the path of this vehicle, the Estimated Crossing Time (ECT) is calculated. When the ECT is 2.5 seconds or less, the system alerts the driver by blinking the outer rear view mirror indicator lights and sounding the RCTA buzzer.

          B002FSDC01
          *a This Vehicle *b Target Vehicle (Approximately 8 km/h (5 mph))
          *c Target Vehicle (Approximately 28 km/h (18 mph)) *d Approximately 5.5 m (18 ft.)
          *e Approximately 20 m (66 ft.) *f Target Detection Line
          B008G8T Alert Area - -

        • Normal Parking

          B002FS4C01
          *a This Vehicle *b Target Vehicle (Approximately 8 km/h (5 mph))
          B008G8T Alert Area - -

  3. FUNCTION


    1. Blind Spot Monitor Function


      1. According to operation conditions, the blind spot monitor function promotes safety confirmation by using the outer rear view mirror indicator light to inform the driver that another vehicle has entered the detection area formed by the blind spot monitor sensor.

      2. The outer rear view mirror indicator light informs the driver that a vehicle is present in the blind spot detection area by illuminating when the turn signal switch is not operated, and by blinking when a vehicle is present and the turn signal switch is operated.

        B002FEME02

    2. RCTA Function


      1. According to operation conditions, the RCTA function promotes safety confirmation by using the outer rear view mirror indicator lights and RCTA buzzer to inform the driver that another vehicle has entered the blind spot monitor sensor alert area of this vehicle.

      2. When this vehicle is being driven in reverse, if a vehicle enters the alert area of the blind spot monitor sensors and it is determined the vehicle will cross in the path of this vehicle, the system alerts the driver by blinking the outer rear view mirror indicator lights and sounding the RCTA buzzer.

        B002FSYE02

  4. DIAGNOSIS


    1. The blind spot monitor system is equipped with a diagnosis function that can display warning messages in the multi-information display. For details, refer to the Repair Manual.