2003 Lexus GS300 low beam

No.FUSEAMPERECIRCUIT
26 4WS25No circuit
27 TV15No circuit
28 ECU±B210Power seat system
29 P RR
DOOR20Power window system,
Door lock system,
Wireless remote control
30 ECU±B120
Power window system,
Door lock system,
Wireless remote control,
Theft deterrent system, Trunk
lid opener, Interior lights,
Personal lights, Clock,
Headlight cleaner
31 P FR
DOOR20Power window system,
Door lock system,
Wireless remote control
32 D FR
DOOR20Power window system, Door
lock system, Wireless remote
control
33 HORN10Horn
34 ETCS15Electronic throttle control
system
35 AM215Starting system, Multiport fuel
injection system/sequential
multiport fuel injection system
36 TEL15No circuit
37 TURN±HAZ10Turn signal lights
No.FUSEAMPERECIRCUIT
38 EFI25
Multiport fuel injection
system/sequential multiport fuel
injection system, Emission
control system
39 ALT±S5Charging system
40 RADIO
NO.130Audio
41 DRL NO.230Daytime running light system
42 DRL NO.130Daytime running light system
43 H±LP L
LW R15Left±hand headlight (low beam)
44 H±LP R
LW R15Right±hand headlight (low
beam)
45 H±LP R
UPR15Right±hand headlight (high
beam)
46 H±LP L
UPR15Left±hand headlight (high
beam)
SPARESpare fuse

ADDING WASHER FLUID
64G009
If the washer tank becomes nearly empty, add washer
fluid.
You may use plain water as washer fluid. However, in cold
areas where temperatures range below the freezing point, use
washer fluid containing antifreeze. This product is available at
your Lexus dealer and most auto parts stores. Follow the
manufacturer's directions for how much to mix with water.
NOTICE
Do not use engine antifreeze or any other substitute
because it may damage your vehicle's paint.
CHECKING THE HEADLIGHT AIM
64G020d

1Beam angle gauge
(vertical movement for low beam)
2Beam angle gauge
(horizontal movement for low beam)
3Beam angle gauge
(vertical movement for high beam)
4Beam angle gauge
(horizontal movement for high beam)
Before checking the headlight aim:
1. Be sure that the body around the headlight is not deformed.
2. Park the vehicle on a level spot.
3. The driver gets into the driver's seat and puts the vehicle in
a state readying for a driving (with a full tank).
4. Bounce the vehicle several times.

Adjusting the headlight aiming (low beam)
64g059a

1Adjusting bolt A
2Adjusting bolt B
64G021b

1Bubble 2Acceptable range
Vertical movement gauge: The bubble of the gauge should
not deviate from the center of the gauge by more than 2 marks
to either side of the gauge.
If the bubble is out of the acceptable range of the beam angle
gauge, adjust it using bolt A and B.

REPLACING LIGHT BULBS
The illustrations on the following pages show the locations of
light bulbs. If it is necessary to replace a bulb, take your vehicle
to your Lexus dealer as soon as possible. Use bulbs with the
bulb numbers and wattage ratings given in the table.
CAUTION
To prevent burning yourself, do not replace the light
bulbs while they are hot.
Do not disassemble, repair or take apart the low beam
headlight bulbs, connector, power supply circuits
and rotated components. Or you may be injured by
electric shocks. Call your dealer when the headlights
fail to work or have to be replaced or disposed of.
Halogen bulbs have pressurized gas inside and
require special handling. They can burst or shatter if
scratched or dropped. Hold a bulb only by its plastic
or metal case. Do not touch the glass part of a bulb
with bare hands.
NOTICE
Only use a bulb of the listed type.
The inside of the lens of exterior lights such as headlights may
temporarily fog up when the lens becomes wet in the rain or in
a car wash. This is not a problem because the fogging is
caused by the temperature difference between the outside and
inside of the lens, just like the windshield fogged up in the rain.
However, if there is a large drop of water on the inside of the
lens, or if there is water pooled inside the light, contact your
Lexus dealer.

LIGHT LOCATION
64G023b
Light Bulbs Bulb No. W Type
1 Headlight (Low beam)
Discharge bulb D2R 35 B
Halogen bulb HB4 51 C
2 Front turn signal light ±±± 21 D
3 Headlight (High beam) HB3 60 A
4 Parking light ±±± 5 D
5 Fog light HB4 51 C
6 Front side marker light 194 3.8 D
64G075a
Light Bulbs Bulb No. W Type
1 Trunk light 194 3.8 D
2 High mounted stoplight ±±± 5 D
3 Tail/stop light ±±± 5/21 D
4 Tail light ±±± 5/21 D
5 Rear turn signal light ±±± 21 D
6 Back±up light 921 16 D
7 Tail/stop light ±±± 5/21 D
8 License plate light ±±± 5 D