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.

Fig 1: Identifying Metal Restriction Area In Front Of Vehicle

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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

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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 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°).
     Fig 3: Adjusting Screw For Leveling Air Bubble

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   Result 

   RESULT REFERENCE 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

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: Identifying SST

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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: Identifying String Distance From Vehicle Rear Center Point

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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.
   Fig 6: Position For Adjusting Reflector Height

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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 7: Positions For Placing Reflector

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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.
   Fig 8: Connecting Intelligent Tester To DLC3

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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"
   Fig 10: CONSULT-II Display - RADAR CRUISE

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

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8. Press the "ENTER" key.
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.
    Fig 14: CONSULT-II Display - Condition

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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.
       Fig 15: CONSULT-II Display - Distance

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    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.

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°.

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 Screw For Leveling Air Bubble

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT REFERENCE 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.
   1. Prepare a type of metal that can block radio waves, such as aluminum foil.
   2. 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.

      Fig 17: Identifying Metal (Aluminum Foil)

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4. Disconnect the intelligent tester from the DLC3.

1. Set a level on the radar sensor's level rack.
   Fig 18: Identifying Level On Radar Sensor Level Rack

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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 Screw For Leveling Air Bubble

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT REFERENCE 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