Millimeter Wave Radar Sensor: Adjustment

1. Check the tire pressure and adjust it if necessary
2. Remove all excess weight from the vehicle (luggage, heavy objects, etc.)

Adjust the vehicle's height to the standard height.

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.
   Fig 2: Identifying Radar Sensor's Level Rack

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. 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 air bubble is within the red frame.

   Fig 3: Checking Level's Air Bubble

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • The adjustable range within the level's red frame is +/-0.20°
   • The target angle is +0 2° (upward angle of 0.2°).

   Result

   RESULT CHART
   
   

   Adjustment Direction	Adjustment Procedure	Adjustment Angle
   Vertical adjustment	Upward direction. Turn bolt A to negative (-) side	For every 8.4 rotations of adjustment bolt, sensor moves about 1°
   	Downward direction: Turn bolt A to positive (+) side

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

   SST 09870-60000 

   HINT.

   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

   Fig 4: Identifying Millimeter Wave Radar Sensor Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Hang the string (with weight) from the center of the vehicle rear's emblem. Mark the vehicle rear's center point on the ground. Repeat for the front of the vehicle.
2. Set one end of the 10 m (32.8 ft.) string on the vehicle rear's center point. Run the string over the vehicle front's center point to a position 5 m (16.4 ft.) beyond the vehicle front's center point, as shown in the illustration. Mark the 5 m (16.4 ft.) position.
3. Using a tape measure, measure 12 mm (0 472 in.) to the left of the 5 m (16.4 ft.) position. Place the reflector at that position.
   NOTE: Perform the operation as precisely as possible.
   Fig 5: Adjusting Center By Moving String To Right And Left

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 6: Identifying Millimeter Wave Radar Sensor Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. When using Intelligent tester:
   1. Connect the Intelligent tester to the DLC3.
   2. Turn the power switch ON (IG).
   3. Turn the Intelligent tester main switch ON, and turn the cruise control main switch ON.
   4. Follow the instructions on the screen menu. Select "RADAR CRUISE", then select "BEAM AXIS ADJ", and press "Enter".
   5. Continue the procedure according to the instructions on the tester screen.
   6. After the CRUISE main indicator light illuminates, press "ENTER".

      HINT:

      A buzzer will sound for 1 second.

2. When using Techstream
   1. Connect Techstream to the DLC3.
   2. Turn the power switch ON (IG)
   3. Turn the Techstream main switch ON, and turn the cruise control main switch ON.
   4. Select "Connect to Vehicle"
   5. Select each item on the display screen and proceed to the next screen
   6. Under "System Selection Menu", select "Radar Cruise"
   7. Select "Utility".
   8. Select "Beam Axis Adjustment" and proceed to the next screen

      HINT.

      A buzzer will sound for 1 second.

   9. Follow the tester display, and continue with the adjustment
3. Check the following items on the laser cruise divergence data screen.
   NOTE: 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.)

      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)

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. 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

   RESULT CHART
   
   

   Adjustment Direction	Adjustment Procedure	Adjustment Angle
   Horizontal adjustment	Right direction: Turn bolt B to positive (+) side.	For every 18.6 rotations of adjustment bolt, sensor moves about 1 °
   	Left direction: Turn bolt B to negative (-) side.

   Fig 7: Turning And Adjust Bolt B For Horizontal Adjustment Of Millimeter Wave Radar Sensor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT.

   • If "LEFT SIDE. 1.0°" is displayed, the divergence is 1 0° in the left direction. Turn bolt B approximately 18.6 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.

   HINT:

4. A buzzer will sound for 10 seconds or more Disconnect the Intelligent tester or Techstream from the DLC3.

1. Set a level on the radar sensor's level rack.
   Fig 8: Identifying Radar Sensor's Level Rack

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. 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.

   HINT.

   • The adjustable range within the red frame is +/-0.20
   • The target angle is +0 2° (upward angle of 0.2°).

   Result

   RESULT CHART
   
   

   Adjustment Direction	Adjustment Procedure	Adjustment Angle
   Vertical adjustment	Upward direction: Turn bolt A to negative (-) side	For every 8.4 rotations of adjustment bolt, sensor moves about 1°
   	Downward direction: Turn bolt A to positive (+) side

   Fig 9: Checking Level's Air Bubble

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002