Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Adjustment (sequential Recognition)

ADJUSTMENT (SEQUENTIAL RECOGNITION)

CAUTION / NOTICE / HINT

NOTICE:

Make sure to read Before Starting Adjustment before proceeding with work.

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PROCEDURE

1. SECURE APPROPRIATE AREA FOR PERFORMING LEARNING

(a) Park the vehicle on a level surface. HINT: Make sure that the target recognition area of the forward recognition camera is free of objects which may be misrecognized as a target, such as overhead lights, windows, reflective objects, etc. If there are any objects which may be misrecognized as a target behind the area where a target will be placed, prepare an appropriate object to block the background.

*a 3 m (9.84 ft.)

(b) Check the levelness of the ground.

(1) Check the levelness of the ground at the 3 points shown in the illustration.

*a	2.2 m (7.22 ft.)
	Levelness Check Point

(2) Place the level on each levelness check point and check that the air bubble of the level is centered.

(c) Adjust the tire inflation pressure to the specified pressure.

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(d) Clean the windshield glass.

2. CREATE TARGET

NOTICE:

Do not laminate the target or attach reflective materials, such as clear adhesive tape, to its surface. If there are reflective areas on the surface of the target, they will appear white to the forward recognition camera and the target may not be recognized.

*a	Actual Target	*b	Target as Seen by Forward Recognition Camera
	Reflective Object or Surface	-	-

(a) Print the illustration.

(b) Check that the dimensions are within the values shown in the illustration.

*a	18 mm (0.709 in.)	*b	90 mm (3.54 in.)
*c	180 mm (7.09 in.)	*d	Blurry
*e	Distorted	-	-

HINT:

If the dimensions of the created target sheet are not within +/- 5 mm (0.197 in.) of the specified values, adjust the printer settings and reprint the target sheet so that the dimensions are as specified.

(c) Cut a piece of cardboard to be slightly larger than the target sheet.

*a	Target Sheet	*b	Cardboard
*c	180 mm (7.09 in.)	*d	190 mm (7.48 in.) or more
*e	95 mm (3.74 in.) or more	-	-

(d) Prepare a piece of cardboard and draw lines on it as shown in the illustration. HINT: The lines on the back of the target can help with aligning the target with SST (reflector).

*A Back of Target *a Target Sheet *b Cardboard

(e) Place the target sheet on the cardboard with the black area at the top right as shown in the illustration, and securely attach the target sheet using double-sided tape.

NOTICE:

Do not attach reflective materials, such as clear adhesive tape, to the target sheet surface as this may affect target recognition.

(f) Remove SST (reflector) from SST (base stand).

SST: 09870-60000

09870-60010

09870-60020

(g) Align the center of the target sheet with SST (reflector) and attach the target to SST (reflector) with double-sided tape.

*a	Mark-off Line	*b	Equal Distance to Center
	Reflective Surface	-	-

(h) Apply masking tape to the reflective surface of SST (reflector) to cover it.

(i) Install SST (reflector) to SST (base stand).

(j) Hang a weight with a pointed tip from the top center of the target sheet and align it with the mark-off line of SST (base stand) as shown in the illustration. HINT: Make sure that the points (A), (B) and (C) of the target sheet are aligned with the string.

*a String *b Weight *c Mark-off Line

(k) Move SST (reflector) up or down so that the center of the target sheet is at the height shown in the illustration, and secure SST (reflector) in place. HINT: If the center of the target sheet is not within +/- 6 mm (0.236 in.) of the height specified, adjust the position of SST (reflector) so that the height is as specified.

*a 1350 mm (53.15 in.)

(l) Prepare an object to block the area behind the target. (If there are any objects which may be misrecognized as a target behind the area where a target will be placed.)

(1) When blocking the background by holding cardboard behind the target:

*a	Cardboard	*b	840 mm (33.07 in.) or more
*c	420 mm (16.54 in.) or more	-	-

(2) When blocking the background using a light colored plain cloth:

*a	Light Colored Plain Cloth	*b	Whiteboard or Equivalent
*c	840 mm (33.07 in.) or more	*d	420 mm (16.54 in.) or more

3. DETERMINE TARGET PLACEMENT POSITION

(a) Determine the target placement position.

*A	Target Placement Positions	-	-
*1	Placement Point 1	*2	Placement Point 2
*3	Placement Point 3	-	-
*a	forward recognition camera Position	*b	3000 mm (118.11 in.)
*c	550 mm (21.65 in.)	-	-

(b) Hang a weight with a pointed tip from the center of the rear emblem, and mark the rear center point of the vehicle (point A) on the ground.

*a	String	*b	Weight
*c	Center	*d	Bilateral Symmetry

HINT:

Lightly flick the string with your fingers several times to confirm that the string is perpendicular to the ground.

(c) Hang a weight with a pointed tip from the center of the front emblem, and mark the front center point of the vehicle (point B) on the ground (placement position).

*a	String	*b	Weight
*c	Center	*d	Bilateral Symmetry

HINT:

Lightly flick the string with your fingers several times to confirm that the string is perpendicular to the ground.

(d) Using tape and a string, create a line that connects point B to point A and extends at least 2100 mm (6.89 ft.) beyond the front center point of the vehicle.

*a	String	*b	Tape
*c	305 mm (1.0004 ft.)	*d	1975 mm (6.478 ft.)

(e) Mark point C at a position 305 mm (1.0004 ft.) in front of point B.

(f) Mark point D at a position 1975 mm (6.478 ft.) in front of point B.

(g) Using a string, mark line E at a position 1000 mm (3.28 ft.) from point C.

(h) Using a string, mark line H at a position 1000 mm (3.28 ft.) from point C.

(i) Using a string, mark line F at a position 1000 mm (3.28 ft.) from point D.

(j) Using a string, mark line I at a position 1000 mm (3.28 ft.) from point D.

(k) Mark point G (placement point 2) at the point where line E and line F intersect.

(l) Mark point J (placement point 3) at the point where line H and line I intersect.

(m) Using tape and a string, create a line that connects point G and point J (target position line).

*a	String	*b	Tape
*c	Target Position Line	-	-

(n) Mark point K (placement position 1) at the point the string connecting points C and D and the string connecting points G and J intersect.

(o) Confirm that the distance between points K and G (placement positions 1 and 2), and K and J (placement positions 1 and 3) is 550 mm (21.65 in.).

*a

String

*b

550 mm (21.65 in.)

NOTICE:

If the distance between either pair of points is not within +/- 3 mm (0.118 in.) of the specified value, start over from the marking of point A.

4. PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS LEARNING

(a) Perform Recognition Camera/Target Position Memory.

(1) Connect the Techstream to the DLC3.

(2) Turn the engine switch on (IG).

(3) Turn the Techstream on.

(4) Enter the following menus: Chassis / Front Recognition Camera / Utility / Recognition Camera/Target Position Memory.

Chassis > Front Recognition Camera > Utility

Tester Display
Recognition Camera/Target Position Memory

(5) Press "Next".*1

(6) Confirm the conditions displayed on the screen and then press "Next".

(7) According to the display on the Techstream, enter the following values for each respective item.

Item	Value
Target Height	1350 mm (53.15 in.)
Target Distance	3000 mm (118.11 in.)
Distance between Targets	550 mm (21.65 in.)
Target Size	180 mm (7.09 in.)
Pitch Offset Angle	0 deg.

(8) If "Recognition Camera/Target Position Memory has failed." is displayed on the Techstream screen, confirm the conditions displayed on the screen, then press "Yes" and repeat the procedure from *1.

(9) Press "Exit" to exit the Recognition Camera/Target Position Memory utility.

(b) Perform Recognition Camera Axis Adjust (target positioning).

(1) Position SST so that it is aligned with the target position line and the mark-off line is aligned with point K (placement position 1) as shown in the illustration.

*a Target Position Line *b Mark-off Line

(2) Enter the following menus: Chassis / Front Recognition Camera / Utility / Recognition Camera Axis Adjust.

Chassis > Front Recognition Camera > Utility

Tester Display
Recognition Camera Axis Adjust

(3) Press "Next".

(4) Check that the values stored in the ECU are correct and then press "Next".

(5) If "Failed to read axis adjustment data" is displayed, perform Recognition Camera/Target Position Memory, and repeat the procedure from *1.

(6) Confirm the conditions displayed on the screen and then press "Next".

(7) Select "Sequential recognition" and then press "Next".

(8) Check that the target is placed at point K (placement position 1) and then press "Next".

HINT:

If there are any objects which may be misrecognized as a target behind the area where a target will be placed, block the area behind the target with an appropriate object before pressing "Next".

(9) Position SST at point G (placement position 2) and then point J (placement position 3) in the same manner as it was positioned at point K (placement position 1).

NOTICE:

Position SST and press "Next" within 3 minutes of the screen changing to the Recognition Camera Axis Adjust screen.

(10) Perform the adjustment according to the display on the Techstream.

NOTICE:

If an error code is displayed, perform troubleshooting according to the following table, then perform the adjustment again.

Error No.	Error Description	Cause of Error	Action to be Taken
1	Target 1 (Center) malfunction	Center target cannot be recognized	Entering the adjustment area during beam axis adjustment is prohibited (Do not allow anything to pass between the target and the vehicle)
			The values stored in recognition camera/target positions are correct
			The target height and placement points are appropriate
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
			There is an appropriate amount of light (brightness) There are no reflective objects such as cellophane tape on the target or object used to conceal the background The target is correctly orientated (black area positioned on top right) Not in a backlight condition The windshield glass is clean
			Check the camera installation condition (The camera is properly installed (completely installed) and has been installed after the cover is attached)
2	Target 2 (Left) malfunction	Left target cannot be recognized	Entering the adjustment area during beam axis adjustment is prohibited (Do not allow anything to pass between the target and the vehicle)
			The values stored in recognition camera/target positions are correct
			The target height and placement points are appropriate
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
			There is an appropriate amount of light (brightness) There are no reflective objects such as cellophane tape on the target or object used to conceal the background The target is correctly orientated (black area positioned on top right) Not in a backlight condition The windshield glass is clean
			Check the camera installation condition (The camera is properly installed (completely installed) and has been installed after the cover is attached)
3	Target 3 (Right) malfunction	Right target cannot be recognized	Entering the adjustment area during beam axis adjustment is prohibited (Do not allow anything to pass between the target and the vehicle)
			The values stored in recognition camera/target positions are correct
			The target height and placement points are appropriate
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
			There is an appropriate amount of light (brightness) There are no reflective objects such as cellophane tape on the target or object used to conceal the background The target is correctly orientated (black area positioned on top right) Not in a backlight condition The windshield glass is clean
			Check the camera installation condition (The camera is properly installed (completely installed) and has been installed after the cover is attached)
1 and 4 displayed simultaneously	Target 1 (Center) stuck malfunction	SST (Center Target) shaking during beam axis adjustment Vehicle shaking during beam axis adjustment	SST (Target) does not move due to the wind, etc.
			Adjust the vehicle so that it does not move Do not enter the vehicle while beam axis adjustment is in progress Do not lean on the vehicle during beam axis adjustment
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
2 and 4 displayed simultaneously	Target 2 (Left) stuck malfunction	SST (Left Target) shaking during beam axis adjustment Vehicle shaking during beam axis adjustment	SST (Target) does not move due to the wind, etc.
			Adjust the vehicle so that it does not move Do not enter the vehicle while beam axis adjustment is in progress Do not lean on the vehicle during beam axis adjustment
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
3 and 4 displayed simultaneously	Target 3 (Right) stuck malfunction	SST (Right Target) shaking during beam axis adjustment Vehicle shaking during beam axis adjustment	SST (Target) does not move due to the wind, etc.
			Adjust the vehicle so that it does not move Do not enter the vehicle while beam axis adjustment is in progress Do not lean on the vehicle during beam axis adjustment
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
5	Target position and interval malfunction	Detected target position and interval is incorrect	The target height and placement points are appropriate
			There are no objects in the background that could be mistakenly detected as the target and the background is hidden
9	FOE and role angle malfunction	Calculated parameter values are incorrect	The target height and placement points are appropriate (The levelness of the placement area is within the specified value. (See page 1. SECURE APPROPRIATE AREA FOR PERFORMING LEARNING))
			The values stored in recognition camera/target positions are correct
			The camera is installed correctly (The camera is properly installed (completely installed) and has been installed after the cover is attached)
10	Target outside recognition area	The target position captured by the camera is outside of the presumed viewing angle	The values stored in recognition camera/target positions are correct

(11) Press "Exit" to exit the Recognition Camera Axis Adjust utility.

(12) Turn the engine switch off.

(13) Disconnect the Techstream from the DLC3.

(c) Forward recognition camera optical axis learning is complete.

(d) After beam axis adjustment completes, clear the following system vehicle control history entries.

(1) Clear vehicle control history (Dynamic radar cruise control system).

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(2) Clear vehicle control history (Front Camera System).

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(3) Clear vehicle control history (Lane Control System).

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(4) Clear vehicle control history (Road sign assist system).

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(5) Clear vehicle control history (Pre-collision system).

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(6) Clear vehicle control history (Lighting system).

w/ Automatic Headlight Beam Level Control System: Click here

w/o Automatic Headlight Beam Level Control System: Click here