MILLIMETER WAVE RADAR SENSOR ADJUSTMENT


  1. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY

    A01NHUBE01
    Text in Illustration
    *1 Approx. 10 m
    *2 Approx. 14 m

    CAUTION:

    Exposure to radio frequency emissions is hazardous to your health. It is hazardous to be within 20 cm (7.87 in.) of the device's radio frequency aperture.

    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.


      1. A01NEQDE01
        Text in Illustration
        *1 Level

        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. A01NERWE01
        Text in Illustration
        *1 FR
        *2 LH
        *3 Level
        *4 Air Bubble
        *5 Bolt A

        Check that the level's air bubble is within the red frame.

        OK
        Level's air bubble is within red frame.

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

        Tech Tips


        • The adjustable range within the red frame of the level 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 to negative (-) side For every 1.4 rotations of adjustment bolt, sensor moves about 1°
        Downward direction: Turn bolt A to positive (+) side
    4. A01NESNE01
      Text in Illustration
      *1 Millimeter Wave Radar Sensor

      Adjust the reflector height.


      1. Adjust the reflector so that the center of SST reflector is the same height as the millimeter wave radar sensor.

        SST
        09870-60000   ( 09870-60010 )
        09870-60040

        Tech Tips

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

    5. A01NEF0E01

      Place the reflector.


      1. Hang the string (with weight) from the center of the vehicle's rear emblem. Mark the vehicle's rear center point on the ground. Repeat for the front of the vehicle.

      2. A01NGJNE01

        Set one end of the 10 m (32.8 ft.) string on the vehicle's rear center point. Run the string over the vehicle's front center point to a position 5 m (16.4 ft.) beyond the vehicle's front center point, as shown in the illustration. Mark the 5 m (16.4 ft.) position.

      3. Using a tape measure, measure 15 mm (0.591 in.) to the right of the 5 m (16.4 ft.) position. Place the reflector at that position.

        Note

        Perform the operation as precisely as possible.

        A01NDRME01
        Text in Illustration
        *1 Reflector Placement Point *2 Millimeter Wave Radar Sensor Position

    6. Check the radar beam axis.


      1. Connect the intelligent tester to the DLC3.

      2. Turn the power switch on (IG).

      3. Turn the intelligent tester on, and turn the cruise control main switch on.

      4. Select "Auto" from the intelligent tester display screen. *1

      5. Select "Radar Cruise" from the display screen.

      6. Select "Radar Cruise" from the display screen.

      7. Select "Utility" from the display screen.

      8. Select "Beam Axis Adjustment" from the display screen.

      9. Follow the tester display, and select "Next".

        CAUTION:

        Do not come within 20 cm (7.87 in.) of the radar sensor.

        Note


        • Turn the cruise control main switch on before pressing Next.

        • Make sure there is at least 20 cm (7.87 in.) between the radar sensor and any nearby individuals.

      10. Check the following items on the laser cruise divergence data screen.

        CAUTION:

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


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

          Tech Tips


          • A value between 0.0 m (0.0 ft.) and 6.3 m (20.7 ft.) is indicated.

          • If the distance is 0.0 m (0.0 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 m (0.0 ft.) and 6.3 m (20.7 ft.).

          Tech Tips

          If the distance is 0.0 m (0.0 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 screwdriver to adjust bolt B until the divergence of the radar beam axis is 0°.

      2. A01NEA9E01
        Text in Illustration
        *1 Bolt B

        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 screwdriver.

        Result
        Adjustment Direction Adjustment Procedure Adjustment Angle
        Horizontal adjustment Right direction: Turn bolt B to positive (+) side. For every 2.5 rotations of adjustment bolt, sensor moves about 1°
        Left direction: Turn bolt B to negative (-) side.

        Tech Tips


        • If "LEFT SIDE: 1.0°" is displayed, the divergence is 1.0° in the left direction. Turn bolt B approximately 2.5 turns to the negative (-) side.

        • 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.

        Tech Tips

        A buzzer will sound for 10 seconds or more.

      4. Disconnect the intelligent tester from the DLC3.

    8. Recheck and readjust the vertical direction of the radar sensor.


      1. A01NEQDE01
        Text in Illustration
        *1 Level

        Set a level on the radar sensor's level rack.

      2. A01NERWE01
        Text in Illustration
        *1 FR
        *2 LH
        *3 Level
        *4 Air Bubble
        *5 Bolt A

        Check that the level's air bubble is within the red frame.

        OK
        Level's air bubble is within the red frame.

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

        Tech Tips


        • 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 to negative (-) side For every 1.4 rotations of adjustment bolt, sensor moves about 1°
        Downward direction: Turn bolt A to positive (+) side