Dynamic Radar Cruise Control System: Adjustment

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. 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 1: Identifying Radar Beam Dimension

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      Fig 2: Identifying Radar Sensor Level Rack

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   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 screw A until the level's air bubble is within the red frame. 

      HINT:

      • The adjustable range within the red frame of the level is + - 0.2°.
      • The target angle is +0.2° (upward angle of 0.2°).
   Fig 3: Adjusting Red Frame Screw

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   Result 

   RESULT CHART
   
   

   Adjustment Direction	Adjustment Procedure	Adjustment Angle
   Vertical adjustment	Upward direction: Turn screw A to negative (-) side Downward direction: Turn screw A to positive (+) side	Approx. 1.0° per turn

4. Adjust the reflector height.
   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

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5. Place the reflector.
   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: Placing Reflector

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   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: Adjusting Center By Moving String To Right And Left

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   Fig 7: Identifying Reflector Placement Point

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6. Adjust the radar beam axis.
   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.
      Fig 8: Connecting Intelligent Tester To DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   4. Operate by following the screen menus. Select "BEAM AXIS ADJUST" of Radar Cruise Control, and then press the "ENTER" key.

      HINT:

      • Pressing the "ENTER" key will make the ECM transfer to BEAM AXIS ADJUST MODE.
      • When the ECM transfers to BEAM AXIS ADJUST MODE, the buzzer sounds for 1 second.
      Fig 9: CONSULT-II Display - OBD/MOBD

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   5. Select "5: RADAR CRUISE".
   6. Press the "ENTER" key.
      Fig 10: CONSULT-II Display - RADAR CRUISE

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   7. Select "6: BEAM AXIS ADJUST".
   8. Press the "ENTER" key.
      Fig 11: CONSULT-II Display - BEAM AXIS ADJUST

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   9. Press the "ENTER" key.
      Fig 12: CONSULT-II Display - Enter

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   10. Press the "ENTER" key.
       Fig 13: CONSULT-II Display - Enter

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   11. After the CRUISE main indicator light illuminates, press the "ENTER" key.
   12. Press the "ENTER" key.
   13. Check that a distance of 5 m (16.41 ft.) is displayed on the tester.

       HINT:

       If the distance is 0 m, the sensor cannot detect the target. Reconfirm that there is no metal in the surrounding area.

       1. Check that a value between 0.0 and 6.3 is displayed in the meter display area A.
       2. Check that a value between 0.0 and 20.67 is displayed in the feet display area B.
       3. Check that LEFT or RIGHT is displayed in area C.
       4. Check that an angle value between 0.0 and 6.3 is displayed in area D.

          While using the intelligent tester's BEAM AXIS ADJUST 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.

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 screw B until the divergence of the radar beam axis is 0°. 

      Fig 14: CONSULT-II Display - Condition

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 15: CONSULT-II Display - Distance

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   2. Based on the measured divergence of the beam axis, turn and adjust screw B for horizontal adjustment of the millimeter wave radar sensor using a hexagon wrench.
      Fig 16: Adjusting Radar Sensor Screw

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT CHART
      
      

      Adjustment Direction	Adjustment Procedure	Adjustment Angle
      Horizontal adjustment	Right direction: Turn screw B to positive (+) side. Left direction: Turn screw B to negative (-) side.	Approx. 0.33° per turn

      HINT:

      • If "LEFT SIDE: 1.0°" is displayed, the divergence is 1.0° in the left direction. Turn screw B approximately 3 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. Reset the radar sensor's driving learning values. Prepare a type of metal that can block radio waves, such as aluminum foil. Cover the radar sensor's left half with the metal for 10 seconds.
      NOTE: Be sure to keep the reflector in place and make sure that there is nothing between the sensor's left half and the reflector.

      HINT:

      When the reset is completed, the buzzer sounds for 10 seconds.

   4. Disconnect the intelligent tester from the DLC3.
8. Recheck and readjust the vertical direction of the radar sensor.
   1. Set a level on the radar sensor's level rack.
      Fig 17: Identifying Aluminum Foil

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      Fig 18: Identifying 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 red frame. If the bubble is not within the red frame, use a hexagon wrench to adjust screw 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°).

Fig 19: Adjusting Red Frame Screw

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result