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Adjustment [09/2015 - ]: Procedure

  1. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY 
    GTY274075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WARNING:

    Radiofrequency radiation exposure Information:

    • This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
    • This equipment should be kept with minimum distance of 20 cm (7.87 in.) between the radiator (antenna) and your body at all times during adjustment.
    • This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
    NOTE:
    • This device complies with FCC radio frequency emission regulations.
    • Perform measurements on a level surface.
    • Make sure that no large pieces of metal are within a 10 m (32.8 ft.) x 14 m (45.9 ft.) area in front of the vehicle. If possible, the surrounding area should also be free of large metal objects.
    1. Before adjusting the radar beam axis, prepare the vehicle as follows.
      1. Check the tire pressure and adjust it if necessary.
      2. Remove all excess weight from the vehicle (luggage, heavy objects, etc.).
    2. w/ Air Suspension:

      Adjust the vehicle's height to the standard height.

    3. Check and adjust the vertical direction of the radar sensor.
      GTY413138Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove dust, oil and foreign matter from the radar sensor's level rack.
      2. Set a level on the radar sensor's level rack.
      3. Check that the level's air bubble is within the red frame.
        GTY627647Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        OK

        Level's air bubble is within red frame.

        If the bubble is not within the red frame, use a hexagon wrench to adjust bolt A until the air bubble is within the red frame.

        HINT: 

        • The adjustable range within the level's red frame is +/-0.2°
        • The target angle is +0.2° (upward angle of 0.2°).
          RESULT

          Adjustment Direction Adjustment Procedure Adjustment Angle
          Vertical adjustment
          • Upward direction: Turn bolt A in minus (-)direction
          • Downward direction: Turn bolt A in plus (+) direction
          		 For 1 complete turn of screwdriver, sensor moves about 0.12°
    4. Adjust the reflector height.
      GTY626844Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Adjust the reflector so that the center of the SST reflector is the same height as the millimeter wave radar sensor.
        • SST: 09870-60000 
          • 09870-60010
        • SST: 09870-60040 

        HINT: 

        Prepare a 10 m (32.8 ft.) string with a sharp-pointed weight (plumb bob) and a 5 m (16.4 ft.) tape measure.

    5. Place the reflector.
      1. From the center of the front bumper (center of the emblem), hang a weight with a pointed tip, and mark point B on the ground.
        GTY668843Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. From the center of the rear bumper (center of the emblem), hang a weight with a pointed tip, and mark point A on the ground.
        GTY672924Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Using a piece of string that uses point A as a starting point and that passes through point B, make a straight line on the ground ahead of the vehicle 5 m (16.4 ft.) or more from point B.

        HINT: 

        • Make sure to secure the string (using tape, etc.) when it is taut.
        • Lightly flick the string with your fingers several times to confirm that the string is aligned above point B.
      4. Using a tape measure, measure 10 mm (0.394 in.) to the left of the 5000 mm (16.4 ft.) position. Place the reflector at that position.
        NOTE:

        Perform the operation as precisely as possible.

        GTY404585Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Check the radar beam axis.
      1. When using Techstream:
        1. Connect Techstream to the DLC3.
        2. Turn the engine switch on (IG).
        3. Turn the Techstream main switch ON, and turn the cruise control main switch ON.
        4. Select "Connect to Vehicle".
        5. Under "Option", select "RADAR CRUISE".
        6. Select either "w/o LKA System" or "w/ LKA System".
        7. Under "System Selection Menu", select "Powertrain".
        8. Select "Radar Cruise".

          HINT: 

          A buzzer will sound for 1 second.

        9. Follow the Techstream display and continue with the adjustment.
      2. Check the following items on the laser cruise divergence data screen.
        NOTE:

        While using the Techstream beam axis adjustment mode, the actual direction and angle of the radar sensor may be different from the Techstream data. In such a case, the deviation is displayed on the combination meter's multi-information display.

        1. Confirm that the distance is approximately 5 m (16.4 ft.).

          HINT: 

          • A value between 0.0 and 6.3 m (20.7 ft.) is indicated.
          • If the distance is 0 m (0 ft.), the sensor cannot detect the target. Reconfirm that there is no metal in the specified area in front of the vehicle (refer to the NOTICE at the beginning of this adjustment procedure).
        2. Confirm that the left/right side value is between 0.0 and 6.3°.

          HINT: 

          If the distance is 0 m (0 ft.), the sensor cannot detect the target. Reconfirm that there is no metal in the specified area in front of the vehicle (refer to the NOTICE at the beginning of this adjustment procedure).

    7. Check and adjust the horizontal direction of the radar sensor.
      1. Check that the divergence of the radar beam axis is 0°.

        Standard

        0° (Both right and left)

        If the axis is not as specified, use a hexagon wrench to adjust bolt B until the divergence of the radar beam axis is 0°.

      2. Based on the measured divergence of the beam axis, turn and adjust bolt B for horizontal adjustment of the millimeter wave radar sensor using a hexagon wrench.
        GTY634606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        RESULT

        Adjustment Direction Adjustment Procedure Adjustment Angle
        Horizontal adjustment
        • Right direction: Turn bolt B in plus (+) direction
        • Left direction: Turn bolt B in minus (-)direction
        		 For 1 complete turn of screwdriver, sensor moves about 0.07°

        HINT: 

        If the value does not change to 0°, it is possible that the sensor is aiming at something different. Reconfirm that there are no reflective materials in the surrounding area.

      3. Select "Next". The driving learning value is automatically reset.

        HINT: 

        A buzzer will sound for 10 seconds.

      4. Disconnect the Techstream from the DLC3.
    8. Recheck and readjust the vertical direction of the radar sensor.
      GTY413138Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Set a level on the radar sensor's level rack.
      2. Check that the level's air bubble is within the red frame.
        GTY627647Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        OK

        Level's air bubble is within the red frame.

        If the bubble is not within the red frame, use a hexagon wrench to adjust bolt A until the level's air bubble is within the red frame.

        HINT: 

        • The adjustable range within the red frame is +/-0.2°.
        • The target angle is +0.2° (upward angle of 0.2°).
          RESULT

          Adjustment Direction Adjustment Procedure Adjustment Angle
          Vertical adjustment
          • Upward direction: Turn bolt A in minus (-)direction
          • Downward direction: Turn bolt A in plus (+) direction
          		 For 1 complete turn of screwdriver, sensor moves about 0.12°
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