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Section 365 (LEXUS Night View System - Diagnosis): Pre-Check

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRE-CAUTION 

    When Night View Projector is on, never look squarely at the light for a long time (more than 5 minutes).

    HINT:

    • The Night View Projector emits invisible light for human, therefore, the energy when Night View Projector comes on is almost equal to look squarely at the high beam from the front side.
    • When Night View Projector is on, BEAM indicator on the night view switch and the out circumference of the Night View Projector come on.
    Fig 1: Identifying BEAM Indicator Location
    G03375023Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DESCRIPTION 
    1. General description

      The LEXUS Night View System is a system that takes reflected lights of the Night View Projector and that of the headlight and surrounding light into the Night View Camera to make the strong images. This system assists the driver's view during night. The images are displayed on the front glass by a Night View Display.

      HINT:

      • The view may be different depending on the road conditions or the weather.
      • Not all the matters are made as bright images. Whole screen may be dark or some parts are not easily seen.
      • Since the sensitivity is adjusted for night use, this system makes the driver dazzled and difficult to see in the bright place such as the place where the headlights of the oncoming vehicles or the streetlights exist.
      • Since the Night View Camera is installed on the front glass, the dirt on the glass (both inside and outside) could cause difficulty for viewing. Clean the camera lens if it gets dirty (See Night View Camera Cleaning Method).

        When it is cold, using the heater in "FOOT" mode could cause mist on the upper part of the front glass. In this case, using "DEF" mode to clear the mist.

      • When the Night View Projector has dirt on, it could be difficult to see.
      • Night View Display adopts TFT display. For a character of TFT, the image turns dark when the temperature is low. However, it returns normal when the temperature becomes ordinary temperature (15-20°C (59-68°F)). In addition, the image also turns dark when the battery voltage is low.
    2. The range that the Night View Camera takes images.

      The range that the Night View Camera takes images is shown below.

      Fig 2: Night View Camera Range Images Dimensions
      G03375024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      The Night View Camera has an adjustment mechanism (for 3 directions; right and left, up and down, and rotation).

      If the range that the Night View camera takes images is different from the range shown below, adjustment is required (See ADJUSTMENT ).

    3. Operating condition.

      The operating condition is shown below.

      Operating Condition 

      OPERATING CONDITION

      Ignition Switch Night View Switch Headlight Brightness of Surrounding Vehicle Speed Night View Projector Night View System (Night View Display)
      OFF - - - - OFF OFF
      ON OFF - - - OFF OFF
      ON ON OFF - - OFF OFF
      ON ON ON Bright - OFF OFF
      ON ON ON Dark Below approx. 6km/h OFF ON
      ON ON ON Dark Above approx. 6km/h ON ON

      HINT:

      • Every time turning the ignition switch, the Night View Switch need to be turned on to activate.
      • Approximately 1 second after the above conditions are met, the image will be displayed.
      • The Night View Display has an open and close shutter. This shutter is closed when the display does not operate. If the open and close operation of the display is not normal, once turn the ignition witch OFF and then begin the operation again (In this case, the shutter opens first and then closes).
  3. INSPECTION MODE OPERATION METHOD 

    HINT:

    To check the following conditions, operate the Night View System in Inspection Mode.

    • When operating the Night View System at day time (slightly bright indoor).
    • When turning on the Night View Projector with the vehicle parking. (However, when 5 minutes elapse continuously after the Night View Projector comes on, Inspection Mode automatically OFF.)
    1. Inspection Mode start-up procedure.
      1. While pressing the Night View Switch, turn the ignition switch ON --> OFF --> ON --> OFF --> ON.

        HINT:

        • When the mode enters Inspection Mode, Main indicator on the Night View Switch comes on.
        • To enter Inspection Mode 60 seconds after the ignition switch is turned OFF, turn the ignition switch ON --> OFF --> ON while pressing the Night View Switch.
      2. Press the Night View Switch once. At this time, MAIN indicator on the Night View Switch remains on.
      3. Turn the headlight on.

        HINT:

        The operation order of (2) and (3) is reversible.

      4. The shutter door of the Night View Display opens. At the same time, BEAM indicator on the Night View Switch comes on.
      5. After the shutter door of the Night View Display opens, the Night View Projector comes on in seconds, and the image is displayed on Night View Display.
    2. Night view image closing procedure (Night View System operation standby condition).

      HINT:

      2 methods are possible.

      1. Press the Night View Switch. The condition becomes as below.
        OPERATING CONDITION

        Night View Switch Night View Display Night View Projector
        Beam indicator goes off The image disappears (shutter close) Go off

        HINT:

        When operating the system again, press the Night View Switch again.

      2. Turn the headlight off. At this time, the condition becomes as below.
        OPERATING CONDITION

        Night View Switch Night View Display Night View Projector
        Beam indicator goes off The image disappears (shutter close) Go off

        HINT:

        When operating the system again, turn the headlights on again.

    3. Night view image closing procedure (Night view system off procedure).
      1. Turn the ignition switch off. At this time, the condition becomes as below.
      OPERATING CONDITION

      Night View Switch Night View Display Night View Projector
      Main and Beam indicator goes off The image disappears (shutter close) Go off

      HINT:

      When operating the system again, perform the Inspection Mode procedure.

  4. NIGHT VIEW CAMERA CLEANING METHOD 
    1. Remove Night View Camera cover.
    2. Remove Night View Camera.
    3. Wipe the lens with a clean soft cloth soaked with cleaner.

      HINT:

      Do not splay cleanser directly to the lenses. Cleaner may permeates through the rim of the lenses, which could causes a camera break down.

    4. Adjust night view camera aiming (See ADJUSTMENT ).
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