2003 LEXUS LS430 sensor

REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE MILLIMETER WAVE RADAR SENSOR ASSY
a. Disconnect the connector.
b. Remove the 3 bolts and millimeter wave radar sensor.
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Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3.INSTALL MILLIMETER WAVE RADAR SENSOR ASSY
a. Install the millimeter wave radar sensor with the 3 bolts.
Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf)
b. Connect the connector.
4.ADJUST MILLIMETER WAVE RADAR SENSOR ASSY (See ADJUSTMENT
)
ADJUSTMENT

1.ADJUST MILLIMETER WAVE RADAR SENSOR ASSY

a. Preparation for adjusting the radar beam axis
1. Adjust the tire pressure properly (see INSPECTION
).
2. Luggage in the vehicle, such as in the trunk, should be unloaded.
b. Adjust the standard vehicle height (vehicle with air suspension) (see INSPECTION
)
c. Adjustment in vertical direction of the millimeter wave radar sensor.
1. Remove dust and oil on the level rack of the millimeter wave radar sensor.
2. Set the specified level on the center of the level rack of the millimeter wave radar sensor.
Fig. 21: Setting Specified Level

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3. Using a hexagon wrench, turn and adjust screw A for vertical adjustment of the millimeter
wave radar sensor so that the air bubble is within the red frame on the level.
Standard:
Adjustable range within the red frame of the level is ± 0.2°.

Fig. 23: Adjustment Direction Chart
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d. 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 (09870-60010, 09870-60040)
HINT:
Prepare a 10 m (32.81 ft) string, with a sharp-pointed weight (plumb bob), and a 5 m (16.41 ft) tape
measure.

Fig. 34: Pressing ENTER" Key
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13. Confirm that the current distance (reference value) is approximately 5 m (16.41 ft).
HINT:
If the distance is 0 m, the sensor can not detect the target. Reconfirm that there is no metal in the
region.
*1: Either DISTANCE is indicated.
*2: Either LEFT or RIGHT is indicated.
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56005700030057004b00480003005500440047004400550003[beam axis so that the value
falls between 4.0 and 6.0.
*4: Values between 0.0 and 6.3 are indicated.
The direction and angle that actually deviate from the spec are displayed in the multi-information

display on the combination meter when starting the beam axis adjustment mode with the hand-held
tester.
Fig. 35: Confirming Current Distance

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g. Adjustment in horizontal direction
1. Read the divergence in the current angle.
Standard:
0° (Both right and left)
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.
HINT:

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HINT:
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 surroundings.
3. Cover the sensor's right half with metal that can block radio wave (such as aluminum foil) in
order to reset the driving learning values (approximately 10 seconds).
Fig. 38: Covering Sensor With Metal

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

4. Disconnect the hand-held tester from the DLC3.
h. Recheck vertical adjustment of the millimeter wave radar sensor.
1. Set the specified level on the center of the level rack of the millimeter wave radar sensor.
Fig. 39: Setting Specified Level On Center Of Level Rack

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2. Using a hexagon wrench, turn and adjust screw A for vertical adjustment of the millimeter wave
radar sensor so that the air bubble is within the red frame on the level.
Standard:
Adjustable range within the red frame of the level is +/-0.2°.