PARKING ASSIST MONITOR SYSTEM


  1. FUNCTION OF MAIN COMPONENTS

    Component Function
    Multi-display assembly Receives video signals representing of the area behind the vehicle with parking assist guide lines overlaid from the multi-media module receiver assembly, and displays them on the display panel.
    Rear Television Camera Assembly Captures images of the area behind the vehicle and outputs video signals to the multi-media module receiver assembly.
    Skid Control ECU Transmits received vehicle speed signals to the multi-media module receiver assembly.
    Steering Angle Sensor Detects the steering angle and transmits signals to the multi-media module receiver assembly.
    ECM Sends received shift position signals to the multi-media module receiver assembly.
    Clearance Warning ECU Assembly* Sends clearance sonar detection information to the multi-media module receiver assembly.
    Multi-media Module Receiver Assembly Receives and handles each type of signal and outputs a signal to the multi-display assembly.

    • *: Models with LEXUS parking assist-sensor system

  2. OPERATING CONDITION


    1. The parking assist monitor system operates when both of the following conditions are met:


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

      2. The shift lever is in R.

  3. FUNCTION


    1. Area Displayed on Screen


      1. Objects on the right of the vehicle appear on the right side of the multi-display assembly, and objects on the left of the vehicle appear on the left side of the multi-display assembly.

      2. The rear television camera assembly uses a wide-angle lens. The perceived distance from images that appear on the screen differs from the actual distance.

        A019QCPC01
        *a The illustrations shown are examples only. The illustrations may differ from the actual vehicle screens. - -

        Tech Tips

        The area displayed on the screen may vary according to vehicle status or road conditions. The area covered by the rear television camera assembly is limited. The rear television camera assembly does not show objects close to either corner of the bumper or show the area under the bumper.

    2. Warning Message


      1. A warning message appears at the bottom or center of the screen under the following conditions. The warning message appears in the same language that has been selected by the language selector of the multi-display assembly.

        Messages Appearing at Bottom of Screen
        Warning Message Condition
        Check surroundings for safety. This message always appears during system operation.
        System initialising. This message appears when the steering wheel is operated while the negative (-) battery terminal is disconnected and then reconnected.
        Guidance unavailable. This message appears if there is a malfunction in this system.
        Message Appearing at Center of Screen
        Warning Message Condition
        System not ready. This message appears if the system is not initialized.

    3. Multi-display Assembly (Parking Assist Monitor Display)


      1. Perpendicular Parking Mode


        • Perpendicular parking mode consists of A: parking assist guide line display mode, B: course line deletion mode and C: estimated course line display mode. The initial (default) setting for perpendicular parking is estimated course line display mode.

        • Pressing the display mode switch screen button switches among the rear monitor modes.

        • When perpendicular parking mode is operating, fixed guide lines appear superimposed on a view of the area behind the vehicle. These guide lines can be used to assist the driver while backing up the vehicle.

          Tech Tips

          The illustrations shown are examples only. The illustrations may differ from the actual vehicle screens.

          A019QFGC02
          *1 Display Mode Switch Screen Button - -
          *a Parking Assist Guide Line Display Mode *b Distance Guide Line Display Mode
          *c Estimated Course Line Display Mode - -

        • A description of the parking assist guide line display mode is provided in the following diagram:

          A019R3FN01
          Item Outline
          (1) Distance Guide Line (Red) Indicates a position on the ground approximately 0.5 m (1.6 ft.) behind the rear bumper.
          (2) Vehicle Width Extension Guide Line (Blue) Indicates the estimated vehicle width.
          (3) Parking Assist Guide Line (Blue) Indicates the path the vehicle will follow if the driver turns the steering wheel fully.
          (a) Display Mode Switch Screen Button Pressing this button changes the display mode.
          (b) Parking Mode Switch Screen Button Pressing this button turns parallel parking assist mode on.
          (c) Warning Message Display Area Area where warning messages are displayed.

        • A description of the distance guide line display mode is provided in the following diagram:

          A019QF1N01
          Item Outline
          (1) Distance Guide Line (Red) Indicates a position on the ground approximately 0.5 m (1.6 ft.) behind the rear bumper.
          (a) Display Mode Switch Screen Button Pressing this button changes the display mode.
          (b) Parking Mode Switch Screen Button Pressing this button turns parallel parking assist mode on.
          (c) Warning Message Display Area Area where warning messages are displayed.

        • A description of the estimated course line display mode is provided in the following diagram.

          A019QHCN01
          Item Outline
          (1) Distance Guide Line (Yellow) Moves together with estimated course lines in sync with the steering wheel. The center of the line indicates a position on the ground approximately 1.0 m (3.3 ft.) behind the rear bumper.
          (2) Distance Guide Line (Red) Moves together with estimated course lines in sync with the steering wheel. The center of the line indicates a position on the ground approximately 0.5 m (1.6 ft.) behind the rear bumper.
          (3) Distance Guide Line (Blue) Indicates a position on the ground approximately 0.5 m (1.6 ft.) behind the rear bumper.
          (4) Vehicle Width Extension Guide Line (Blue) Indicates the estimated vehicle width.
          (5) Estimated Course Line (Yellow) Moves in sync with the steering wheel to indicate the estimated reverse course of the vehicle.
          (a) Display Mode Switch Screen Button Pressing this button changes the display mode.
          (b) Parking Mode Switch Screen Button Pressing this button turns parallel parking assist mode on.
          (c) Warning Message Display Area Area where warning messages are displayed.

      2. Parallel Parking Assist Mode


        • Parallel parking assist is available in the following 2 display modes: standard mode and narrow mode.

        • Narrow mode is designed for situations in which the parking space is narrower than the standard mode.

        • The default setting of the parallel parking assist is standard mode.

          A019QOZC01
          *a Standard Mode *b Narrow Mode
          *c Space Needed for Parking *d Display Status

        • Parallel parking assist will display standard mode and narrow mode using the same design.

        • The guide lines displayed for parallel parking assist mode change in accordance with parking maneuvers.

          A019QWQN01
          Item Outline
          (1) Blue Outline

          • Serves as a reference position for the intended parking space.

          • Disappears once the vehicle starts moving backward.
          (2) Black and Yellow Vertical Pole Serves as a reference position for starting parallel parking.
          (3) Curved Blue Line (Blue) Indicates part of the prospective outer path of the vehicle when the steering is turned fully to the right or left side.
          (4) Vehicle Width Extension Guide Line (Blue) Indicates the estimated vehicle width.
          (5) Distance Guide Line (Yellow) Moves together with the estimated guide lines in sync with the steering wheel. The center of the line indicates a position on the ground approx. 1.0 m (3.3 ft.) behind the rear bumper.
          (6) Estimated Course Line (Yellow) Moves in sync with the steering wheel to indicate the estimated reverse course of the vehicle.
          (7) Distance Guide Line (Red) Moves together with the estimated guide lines in sync with the steering wheel. The center of the line indicates a position on the ground approx. 0.5 m (1.6 ft.) behind the rear bumper.
          (a) Mode Screen Button Switch Changes between standard and narrow modes.
          (b) Parking Mode Switch Screen Button Changes between parallel parking assist mode and perpendicular parking mode.
          (c) Warning Message Display Area Indicates the area where warning messages are displayed.

    4. Parking Assist Guide Line Display Mode (Perpendicular Parking) of Parking Assist Monitor System


      1. To use parking assist guide line display mode in perpendicular parking when parking the vehicle in a parking space, perform the following procedure:


        1. Move the shift lever to R.

        2. Select perpendicular parking mode.

        3. Select parking assist guide line display mode.

        4. An image appears on the display panel as illustrated below:

          A019QQR

        5. Back the vehicle up and stop at the position in which the parking assist guide line comes in contact with the left side of the intended parking position.

        6. Turn the steering wheel fully to the right and back the vehicle up.

          A019QIC

        7. Continue backing the vehicle up until the vehicle is parallel to the plotted lines.

        8. Once the vehicle is parallel, aim the steering wheel straight ahead and back the vehicle up to the target stop position.

          A019QTC

    5. Estimated Course Line Display Mode (Perpendicular Parking) of Parking Assist Monitor System


      1. To use estimated course line display mode in manual assist when parking the vehicle in a parking space, perform the following procedure:


        1. Move the shift lever to R.

        2. Select manual assist mode.

        3. Select estimated course line display mode.

        4. An image appears on the display panel as illustrated below:

          A019R1Z

        5. Turn the steering wheel so that the estimated course lines are within the parking space, and back up carefully.

          A019QT2

        6. When the rear of the vehicle is within the parking space, turn the steering wheel in order to equalize the distance between the vehicle width extension lines and the parking space sidelines.

        7. When the vehicle width extension guide lines and the parking space sidelines are parallel, straighten the steering wheel and then carefully back up until the entire vehicle is within the parking space.

          A019QG0

    6. Parallel Parking Assist Mode of Parking Assist Monitor System


      1. To use parallel parking assist mode to park the vehicle in the parking space, perform the following procedure:


        1. Stop the vehicle parallel to the road or the curb, at a side-to-side clearance of approximately 1.0 m (3.3 ft.) from the parked vehicle, approximately one-half car length forward of the parked vehicle.

          A019QIGC02
          *a Approx. 1.0 m (3.3 ft.) *b Target Parking Position

        2. Aim the steering wheel straight ahead and move the shift lever to R.

        3. Select parallel parking assist mode.

        4. An image is shown on the display panel as illustrated below:

          A019R2N

        5. Drive the vehicle straight back and stop when the black and yellow vertical pole of the target parking position is aligned with the rear end of the parked vehicle.

          A019QBIC01
          *a Black and Yellow Vertical Pole - -

        6. When the steering wheel is turned, the blue outline appears. At this time, the blue vertical line opposite to the target parking position disappears when the steering wheel is turned more than 90 degrees.

          A019QNGC01
          *a Blue Outline - -

        7. Continue turning the steering wheel. The blue outline moves in the direction of the target parking position, while the outline changes into a shape as illustrated below. Keep turning the steering wheel until the blue outline reaches the target parking position.

          A019QVFC01
          *a Blue Outline - -

        8. However, if the steering wheel is turned too much, a message is displayed as shown in the illustration below and the blue outline changes to red to inform the driver that the assist operation is not possible. When the vehicle is too far away from the shoulder, the same condition also occurs even when adjusting the blue outline to a normal position.

          A019R2UC01
          *a Outline Changes from Blue to Red - -

        9. The vertical line (blue) and target frame (blue) disappear and the parking guide lines appear on the target parking position.

          A019QE4C01
          *a Curved Blue Line - -

        10. Keep the steering wheel in the same position and back up. Stop when the parking guide line reaches the right end of the target parking position.

          A019R1S

        11. With the vehicle stopped, fully turn the steering wheel in the opposite direction.

          A019QT9

        12. Using the distance guide line, slowly back the vehicle up until the vehicle is parallel to the road or curb, while paying attention to the vehicles in front and in back. The parking maneuver is completed once the vehicle is parallel.

          A019QL6

  4. DIAGNOSIS


    1. The parking assist monitor system is equipped with a diagnosis function which can display the diagnosis menus. The method for entering the diagnosis menu screen is the same as the method used for the multi-display assembly. For details, refer to the Repair Manual.