Toyota Yaris: Front Camera / Before Starting Target Adjustment

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Front Camera / Before Starting Target Adjustment

BEFORE STARTING TARGET ADJUSTMENT

CAUTION / NOTICE / HINT

NOTICE:

When replacing the windshield glass of a vehicle equipped with a forward recognition camera, make sure to use a Toyota genuine part. If a non-Toyota genuine part is used, the forward recognition camera may not be able to be installed due to a missing bracket or the pre-collision system may not operate properly due to a difference in the transmissivity of the windshield glass or the shape of the black ceramic border.

HINT:

  1. Purpose of Forward Recognition Camera Optical Axis Learning
    1. If the installation position or orientation of the forward recognition camera is changed due to it being replaced with a new one or the windshield glass sub-assembly being replaced or removed and installed, it is necessary to perform forward recognition camera optical axis learning for the forward recognition camera to learn the driving direction of the vehicle and its horizontal axis in order for each driving support system to operate correctly.
  2. Characteristics of Forward Recognition Camera
    1. As the forward recognition camera recognizes targets using image processing based on differences in contrast, when performing forward recognition camera optical axis learning, if there are overhead lights, windows, reflective objects, or high contrast objects behind the target, the contrast between background objects may be detected as high and may be misrecognized as a target.
    2. By blocking objects behind the target which may be misrecognized as a target, the forward recognition camera can more easily recognize the target and complete forward recognition camera optical axis learning.

      *a

      Target

      -

      -

      Target recognition area

      -

      -

    3. Forward recognition camera optical axis learning may fail if it is performed under any of the following conditions.
      1. Light Shining from Behind Target (Backlit)

        As the target will appear dark to the camera if the target is backlit, the contrast of the black and white parts of the target will decrease and the target may not be recognized.

      2. Target Partially Illuminated by Light from Windows

        If the surface of the target is unevenly illuminated, the contrast of the black and white parts of the target will decrease and the target may not be recognized.

      3. Entire Target not Illuminated

        If the target is placed in an area that is dark, the contrast between the target and the background will decrease and the target may not be recognized.

      4. Shadow of Target is Cast onto Wall

        Make sure that the shadow of the target is not cast onto a wall as this may cause a target recognition error.

      5. Reflective Object on Target Surface

        If an object, such as clear adhesive tape, is attached to the target surface or if the target is laminated, the target surface will reflect light. As the reflected light will appear white to the camera, the target may not be recognized.

        *a

        Actual Target

        *b

        Target as Seen by Forward Recognition Camera

        Reflective Object or Surface

        -

        -

      6. Border of Black and White Parts of Target are Blurry or Distorted

        If the borders of the black and white parts of the target appear blurry to the camera, the detected contrast will be low and the target may not be recognized.

      7. Target is Moving

        If the target is moving, due to being blown by the wind, etc., it may not be recognized.

      8. Target and Vehicle are not Level

        If the target and vehicle are not level when learning is performed, an incorrect center of the direction of travel of the vehicle may be learned or the forward recognition camera may not be able to detect the target.

  3. Recognition Method
    1. Forward recognition camera optical axis learning can be performed by using either One Time Recognition or Sequential Recognition.

      *A

      for One Time Recognition

      *B

      for Sequential Recognition

      Recognition Method

      Target Position

      Number of Times Target Recognition Performed

      One Time Recognition

      1 (In front of front bumper)

      1

      Sequential Recognition

      3 (3 m (9.84 ft.) from the forward recognition camera)

      3

      • One Time Recognition is an optical axis learning method in which 3 targets are recognized simultaneously at 1 position directly in front of the front bumper.

        Click here

      • Sequential Recognition is an optical axis learning method in which 1 target is recognized sequentially at 3 positions 3 m (9.84 ft.) from the forward recognition camera.

        Click here

    Installation

    INSTALLATION PROCEDURE 1. INSTALL FORWARD RECOGNITION CAMERA NOTICE: When replacing the forward recognition camera, replace it with a new one. If the forward recognition camera has been struck or dropped, replace it with a new one...

    Target Adjustment(one Time Recognition)

    TARGET ADJUSTMENT(ONE TIME RECOGNITION) CAUTION / NOTICE / HINT NOTICE: Make sure to read Before Starting Adjustment before proceeding with work. Click here PROCEDURE 1...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Removal


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    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Terminals Of Ecu


    TERMINALS OF ECU NOTICE: After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal. Click here When disconnecting and reconnecting the auxiliary battery. Click here CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly...

    Categories

    Supplemental Restraint System (SRS) Precautions

    The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.

    The air bags are installed in the following locations:

    The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)

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