Lexus GS300/400 (2000 year). Manual — part 83
I04297
Beam Angle Gauge
(Vertical Alignment)
Acceptable
Range
Bubble
I04298
”0” Mark
(Horizontal Alignment) A
B
Lens
BE–46
–
BODY ELECTRICAL
HEADLIGHT AND TAILLIGHT SYSTEM
2347
1.
ADJUST HEADLIGHT AIMMIMG
(a)
Inspect the headslight aimming.
Do the following items before inspection.
Make sure the body around the headlight is
not deformed.
Park the vehicle on a level spot.
The driver gets into the driver’s seat and puts
the vehicle in a state ready for driving (with a
full tank).
Bounce the vehicle several times.
(b)
Adjust the headlight aimming.
Vertical Alignment:
If the bubble is out of the acceptable range of the
beam angle gauge, adjust it using bolt A.
Horizontal Alignment:
If the edge of the lens does not match ”0” mark, ad-
just the lens using bolt B.
HINT:
After adjusting the headlight in vertical direction, check that the
light has been shifted from the adjusted position in the horizon-
tal direction.
2.
REPLACE HEADLIGHT
(a)
Replace the headlight.
(b)
Inspect the headlight aimming.
Do the following items before inspection.
Make sure the body around the headlight is
not deformed.
Park the vehicle on a level spot.
The driver gets into the driver’s seat and puts
the vehicle in a state ready for driving (with a
full tank).
Bounce the vehicle several times.
I07728
20.9 mm (0.823 in.)
0.4
°
3 m (9.84 ft)
W
V Center
Line
V LH Line
V RH Line
H
H
RH Line
3 cm
(0.57
°
)
LH
Line
W
I04297
Beam Angle Gauge
(Vertical Alignment)
Acceptable
Range
Bubble
–
BODY ELECTRICAL
HEADLIGHT AND TAILLIGHT SYSTEM
BE–47
2348
(c)
Check the headlight aimming.
(1)
Prepare the thick white colored paper.
(2)
Stand the paper perpendicularly and ensure the
distance from it to the head lights is 9.84 ft.
(3)
Ensure that the center line of vehicle and the paper
are at a 90 degree angle as shown in the illustration.
(H line)
(4)
Engine running.
(5)
Draw a horizontal line on the paper where the head
lights of the vehicle are to be.
(6)
Draw a vertical line on the paper where the center
line of the vehicle is to be. (V center line)
(7)
Take an appropriate measure to avoid affecting the
other light. (V RH and LH lines)
NOTICE:
Disconnect the connector of the other light to avoid
heat affection from the light because the outer lens of
the head light assembly is made of synthetic resin.
When connecting the connector again take care not
to wake the aiming out of adjustment.
When covering the headlight, finish it within 3 min-
utes.
(8)
Turn the head lights ON.
(9)
Check that the head lights light up the paper as
shown in the illustration.
(10) When the paper is not lighted up properly, adjust the
lights in the vertical or horizontal direction.
HINT:
As shown in the illustration, adjust aiming of the LH and RH
lights along each vertical line respectively.
(d)
Vertical Alignment:
Adjust the headlight aimming.
(1)
Using adjustment bolt A, adjust the headlight aim-
ing to within the specifiactions.
(2)
Make sure the gauge bubble is within the accept-
able range.
HINT:
If the gauge bubble is outside the acceptable range, check that
the vehicle is parked on a level spot.
Readjust the headlight aiming after parking the vehicle on a lev-
el spot.
I04298
”0” Mark
(Horizontal Alignment) A
B
Lens
BE–48
–
BODY ELECTRICAL
HEADLIGHT AND TAILLIGHT SYSTEM
2349
(e)
Horizontal Alignment:
Adjust the headlight aimming.
If the edge of the lens does not match the paper as shown
in the illustration, adjust the lens using bolt B. (See step
5)
HINT:
After adjusting the headlight in vertical direction, check that the
light has been shifted from the adjusted position in the horizon-
tal direction.
BE01R–06
I01351
Headlight Beam Level Control Actuator
Height Control Sensor
Headlight Beam Level Control ECU
Driver Side Junction Block
ECU–IG Fuse
GAUGE Fuse
–
BODY ELECTRICAL
HEADLIGHT BEAM LEVEL CONTROL SYSTEM
BE–49
2350
HEADLIGHT BEAM LEVEL CONTROL SYSTEM
LOCATION
The vehicle shown in this illustration is ”GS400”.
All components of ”GS300” other than the ones used for engine are same as ”GS400”.
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