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 Level On Radar Sensor 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 hexagon wrench to adjust bolt A until the air bubble is within the red frame.

   Fig 3: Identifying Level Air Bubble Is Within Red Frame

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   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

   ANGLE ADJUSTMENT
   
   

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

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 

   HINT:

   Prepare a 10 m (32.81 ft.) string, a string with a sharp-pointed weight (plumb bob), and a 5 m (16.41 ft.) tape measure.

   Fig 4: Adjusting Reflector Height

   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.
   Fig 5: Hanging String From Center Of Vehicle Rear's Emblem

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Set one end of the 10 m (32.82 ft.) string on the vehicle rear's center point. Run the string over the vehicle front's center point to a position 5 m (16.41 ft.) beyond the vehicle front's center point, as shown in the illustration. Mark the 5 m (16.41 ft.) position.
3. Using a tape measure, measure 12 mm (0.47 in.) to the left of the 5 m (16.41 ft.) position. Place the reflector at that position.
   NOTE: Perform the operation as precisely as possible.
   Fig 6: Identifying Reflector Mark Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. When using intelligent tester:
   1. Connect the intelligent tester to the DLC3.
   2. Turn the engine 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. Press "ENTER".
   6. Press "ENTER".
   7. Press "ENTER".
   8. After the CRUISE main indicator light illuminates, press "ENTER".

      HINT:

      A buzzer will sound for 1 seconds.

2. 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 seconds.

   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 (16.41 ft).

      HINT:

      • A value between 0.0 and 6.3 m (20.67 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  ).
   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  ).

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.

   Result 

   Fig 7: Identifying Bolt B

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   ANGLE ADJUSTMENT
   
   

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

   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:

   A buzzer will sound for 10 seconds.

4. Disconnect the intelligent tester or Techstream from the DLC3.

1. Set a level on the radar sensor's level rack.
   Fig 8: Identifying Level On Radar Sensor 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 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 +/-0.20.
   • The target angle is +0.2° (upward angle of 0.2°).

   Result

   ANGLE ADJUSTMENT
   
   

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

   Fig 9: Identifying Level Air Bubble Red Frame

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002