MULTI-TERRAIN MONITOR SYSTEM


  1. FUNCTION OF MAIN COMPONENTS

    Component Function
    Multi-media Module Receiver Assembly Receives video signals transmitted from the parking assist ECU and displays them.
    Monitor Switch Switches between the screen of the multi-terrain monitor system and the wide view front and side monitor system.
    Parking Assist ECU

    • Turns the multi-terrain monitor system on/off in accordance with the signals received from the ECU and switches.

    • Outputs video signals from the front television camera, the side television camera and the rear television camera to the multi-display assembly.
    Television Camera Assemblies Output the images received by television camera assemblies installed on the front grille, outer rear view mirror assembly and back door to the parking assist ECU.
    Skid Control ECU Outputs vehicle speed signals to the parking assist ECU.
    ECM Outputs shift position signals to the parking assist ECU.
    Main Body ECU (Driver Side Junction Block Assembly) Sends information such as mirror retraction signals to the parking assist ECU.
    Steering Angle Sensor Detects the steering angle and transmits signals to the parking assist ECU.
    Clearance Warning ECU Assembly* Sends clearance sensor detection information to the parking assist ECU.

    • *: Models with LEXUS parking assist-sensor system

  2. OPERATING CONDITION


    1. The multi-terrain monitor system will display under the following conditions:


      1. Engine switch is on (IG) or on (ACC).

      2. Multi-terrain select is on.

      3. Vehicle speed is 10 km/h (6 mph) or less.

      4. Multi-terrain monitor system is on.

  3. FUNCTION


    1. Area Displayed on Screen


      1. The front, rear and side television camera assemblies can capture images within the area shown below. However, the display area may differ, depending on the conditions of the vehicle or the road.

        A019QVIC01
        *a Front Television Camera Assembly Capture Range *b Rear Television Camera Assembly Capture Range
        *c Side Television Camera Assembly Capture Range - -

    2. Front View Mode


      1. The front view mode shows the conditions in front of the vehicle.

      2. In the front view mode, the screen displays as shown in the illustration below:

        A019QB7N01
        Item Description of Display
        (1) Vehicle Icon Shows the display range of the front view mode.
        (2) Warning Message Display Area Displays a warning message.
        (3) LEXUS Parking Assist-sensor System Icon Shows the obstacle detection position of the LEXUS parking assist-sensor system.
        (4) Parts Which Show The Vehicle Parts which show some of the radiator grille and bumper. (Does not show the bumper corners.)
        (5) Distance Guide Line (Yellow) Shows a point approx. 1.0 m (3.3 ft.) ahead of the front edge of the vehicle.
        (6) Distance Guide Line (Red) Shows a point approx. 0.5 m (1.6 ft.) ahead of the front edge of the vehicle.
        (7) Trajectory Line (Inside) Indicates the inner path of the wheel.
        (8) Trajectory Line (Outside) Indicates the outer path of the wheel.
        (9) AUTO Mode Switch Turns the AUTO mode on and off.

    3. Side Front Simultaneous View Mode


      1. The side front simultaneous view mode shows the conditions in front of and to the sides of the vehicle.

      2. In the side front simultaneous view mode, the screen displays as shown in the illustration:

        A019QPNN01
        Item Description of Display
        (1) Vehicle Icon Shows the screen display range of the side front simultaneous view mode.
        (2) LEXUS Parking Assist-sensor System Icon Shows the obstacle detection position of the LEXUS parking assist-sensor system.
        (3) Warning Message Display Area Displays a warning message.

    4. Side Rear Simultaneous View Mode


      1. The side rear simultaneous view mode shows the conditions behind and to the sides of the vehicle.

      2. In the side rear simultaneous view mode, the screen displays as shown in the illustration below:

        A019R50N01
        Item Description of Display
        (1) Vehicle Icon Shows the screen display range of the side rear simultaneous view mode.
        (2) LEXUS Parking Assist-sensor System Icon Shows the obstacle detection position of the LEXUS parking assist-sensor system.
        (3) Warning Message Display Area Displays a warning message.

    5. Rear View Mode


      1. The rear view mode shows the conditions behid the vehicle.

      2. In the rear view mode, the screen displays as shown in the illustration below:

        A019QYAN01
        Item Description of Display
        (1) Warning Message Display Area Displays a warning message.

    6. Warning Message


      1. A warning message appears at the bottom, side or center of the screen under the conditions listed below. The warning message appears in the language that has been selected by the language selector of the navigation screen display.

        Messages Appearing at Top or Bottom of Screen
        Warning Message Outline
        Check surroundings for safety. This message always appears during system operation.

    7. Display Transition


      1. The manual display mode of the multi-terrain monitor system undergoes the following screen transitions:

        A019QZFE01
        Item Transition Condition
        *a The monitor switch is operated.
        *b The monitor switch is pressed when the shift lever is in D or N.
        *c The map switch is pressed, or the shift lever is moved to P.
        *d The shift lever is in R.
        *e The vehicle speed has increased to more than 12 km/h (7.5 mph). (During AUTO mode)
        *f The vehicle speed has dropped to 10 km/h (6 mph) or less. (During AUTO mode)
        *g The shift lever is in a position other than P and R. (Not in L4 mode)
        *h The shift lever is in a position other than P and R. (L4 mode)

  4. FAIL-SAFE


    1. The table below indicates the conditions of detecting malfunctions in the components of this system:

      Malfunction Parts Detection Item Function
      Television Camera Assemblies Transmission of television camera malfunction signal Stops signal reception and displays a dark screen
      Parking Assist ECU Malfunction of parking assist ECU Stops system operation

  5. DIAGNOSIS


    1. The multi-terrain monitor system is equipped with a diagnosis function which can display the service menus. For details, refer to the Repair Manual.