2006 Lexus GS300 lights

ELECTRICAL COMPONENTS
566
No.FUSEAMPERECIRCUIT
1 STR LOCK25Steering lock system
2 SECURITY7.5Smart access system with
push−button start
3 TI &TE20Power tilt and telescopic
steering wheel, Multiplex
communication system
4 AM17.5Starting system
5 STOP SW7.5
Stop/tail lights, Multi−port fuel
injection system/sequential
multiport fuel injection system,
Starting system, Electronic
control brake system, Vehicle
stability control system, Shift
lock system
6 OBD7.5On−board diagnosis system
7 FR P/SEAT
RH30Power seat system
8 AIR SUS20Electronic modulated
suspension
9 PWR
OUTLET15Power outlet
10 CIG15Cigarette lighter
11 ACC7.5
Multiplex communication
system, Smart access system
with push−button start, Rear
view monitor system, Audio
system, Air conditioning system
No.FUSEAMPERECIRCUIT
12 IGN10
Multi−port fuel injection
system/sequential multiport fuel
injection system, SRS airbag
system, Stop/tail lights,
Steering lock system, Electronic
control brake system
13 GAUGE7.5Gauges and meters
14 ECU−IG
RH10
Power tilt and telescopic
steering wheel, Multiplex
communication system, Smart
access system with
push−button start, Audio
system, Air conditioning
system, Shift lock system, Tire
pressure warning system,
Combination switch
15 FR S/HTR
RH15Seat heater, Heated and
ventilated seats
16 RH−IG7.5
Seat heater switches, Front
right door control system, Rear
right door control system,
Capacitor, Combination switch,
Seat belt pretensioners,
Intuitive parking assist
17 AM215Starting system

ELECTRICAL COMPONENTS
568
No.FUSEAMPERECIRCUIT
28 ECU−IG LH10
Vehicle stability control system,
Electronic control brake system,
Yaw rate and G sensor,
Steering sensor, Cruise control
system, Dynamic radar cruise
control system, Electronic
power steering system, Variable
gear ratio steering system,
Rear view monitor system,
Four−wheel drive system, Front
controller, Moon roof, Rain
sensor
29 FR S/HTR
LH15Seat heater, Heated and
ventilated seats
30 FR P/SEAT
LH30Power seat system
31 A/C7.5Air conditioning system
32 TV7.5Audio system, Air conditioning
system, Rear view monitor
system
33 TRK OPN10Trunk lid opener
34 LH−B10Theft deterrent system
35 S/ROOF25Moon roof
36 ECU−B10
Variable gear ratio steering
system, Electronic power
steering system, Driver’s seat
switch module
37 ABS
MAIN310Electronic control brake system
No.FUSEAMPERECIRCUIT
38 TURN−HAZ15Turn signal lights, Emergency
flashers
39 IG2 MAIN20“IG2”, “GAUGE” and “IGN”
40 RAD NO.230Audio system
41 D/C CUT20“DOME “ and “MPX−B”
42 RAD NO.130Audio system
43 MPX−B10
Multiplex communication
system, Front controller, Door
control system (Power door
lock system, Door courtesy
lights, Power windows, Power
rear view mirror control system,
Outside rear view mirror
heaters), Power seat system,
Steering sensors, Electronic
control brake system, Power tilt
and telescopic steering system,
Gauges and meters,
Combination switch
44 DOME10
Foot lights, Vanity lights,
Gauges and meters, Steering
spot light, Steering switch
illumination, Rear personal
lights, Automatic transmission
selector lever spot light, Front
personal lights
45 ABS
MAIN210Electronic control brake system
46 ABS
MOTOR30Anti−lock brake system

ELECTRICAL COMPONENTS
570
No.FUSEAMPERECIRCUIT
70 A/F15Multi−port fuel injection
system/sequential multiport fuel
injection system
71 ETCS10Multi−port fuel injection
system/sequential multiport fuel
injection system
72 ALT−S7.5Charging system
73 EM VLV10No circuit
74 H−LP CLN30Headlight cleaner system
75 A/C COMP7.5Air conditioning system
76 DEICER25No circuit
77 FR
CTRL−AM30“FR TAIL”, “FR FOG” and
“WASHER”
78 IG210Starting system
79 EFI NO.210
Multi−port fuel injection
system/sequential multiport fuel
injection system, Evaporative
system
80 H−LP R
LW R15Right−hand headlight (low
beam)
81 H−LP L
LW R15Left−hand headlight (low beam)
82 F/PMP25Fuel pump
No.FUSEAMPERECIRCUIT
83 EFI
GS430:
25
GS300:
25Multi−port fuel injection
system/sequential multiport fuel
injection system
84 INJ20Multi−port fuel injection
system/sequential multiport fuel
injection system
85 H−LP UPR15Headlights (high beam)
86 HORN10Horn
87 WASHER20Windshield wipers and washer
88 FR TAIL10Parking lights, Side marker
lights
89 FR FOG15Front fog lights
90 RR
S/SHADE7.5Rear electric sunshade
91 PSB30Pre−collision system
92 RR−IG210No circuit
93 RR−IG110Pre−collision system, Rear
electric sunshade, Seat belt
pretensioners
94 RR−B10Luggage compartment light,
Noise filter
95 RR FOG7.5Rear fog lights
96 STOP LP L10Stoplights, Back up lights

ELECTRICAL COMPONENTS
571
No.FUSEAMPERECIRCUIT
97 STOP LP R10High mounted stoplights
98 RR TAIL10License plate lights, Tail lights,
Rear side marker lights
CHECKING BATTERY CONDITION
Precautions
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and explosive
hydrogen gas.
Do not cause a spark by contacting the battery
terminals with tools.
Do not smoke or light a match near the battery.
The electrolyte contains poisonous and corrosive
sulfuric acid.
Avoid contact with eyes, skin or clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near
the battery.
Keep children away from the battery.
EMERGENCY MEASURES
If electrolyte gets in your eyes, flush your eyes with
clean water for at least 15 minutes and get immediate
medical attention. If possible, continue to apply
water with a sponge or cloth while traveling to the
medical office.

ELECTRICAL COMPONENTS
578
64g104

Good
Blown
If the headlights or other electrical components do not
work and the blade type fuses are O.K., check the
cartridge type fuses. If any of the cartridge type fuses are
blown, they must be replaced.
If there is an overload in the circuits from the battery, the fuses
are designed to blow before the entire wiring harness is
damaged.
CAUTION
Always use a genuine Lexus fuse or equivalent for
replacement. Never install an ordinary wire − even for
a temporary fix. This may cause extensive damage and
possibly a fire.
NOTICE
Before replacing the fuses, have the cause of electrical
overload determined and repaired by your Lexus dealer.

ELECTRICAL COMPONENTS
584
G64028
Turn the bolt B in either direction using a Phillips−head
screwdriver.
If you do not know or cannot find the original position, or if you
feel that there is a large deviation, take the vehicle to your
Lexus dealer to adjust the headlight aim.
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.
The tail lights, stop lights, high mounted stoplight and rear side
marker light consist of a number of LEDs. If any LED burns out,
we recommend you take your vehicle to your Lexus dealer to
have the light inspected as soon as possible.
CAUTION
To prevent burning yourself, do not replace the light
bulbs while they are hot.
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.
Do not touch the high voltage socket when the head-
lights turn on. 20000 V is momentarily generated and
may cause severe injury by electric shock.
Do not disassemble, repair or take apart the headlight
bulbs, connector, power supply circuits and rotated
components. Or you may be injured by electric
shock. Call your dealer when the headlights fail to
work or have to be replaced or disposed of.

ELECTRICAL COMPONENTS
585
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 fogs 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
G64017
Light Bulbs Bulb No. W Type
1 Headlight (High beam) HB3 60 A
2 Parking light−−−5D
3 Front turn signal light−−−21 E
4 Headlight (Low beam) D4S 35 B
5 Front side marker light 194 5 D
6 Fog light HB4 51 C

ELECTRICAL COMPONENTS
586
G64018
Light Bulbs Bulb No. W Type
1 High mounted stoplight−−−3.6 G
2 Tail light−−−0.9/0.5 G
3 Tail/stop light−−−0.9/10.8 G
4 Trunk light−−−5F
5 Rear side marker light−−−0.5 G
6 Rear turn signal light−−−21 E
7 Back−up light 921 16 D
8 License plate light−−−0.85 G
G64019
Light Bulbs Bulb No. W Type
1 Front interior lights−−−0.1 G
2 Front seat spot lights−−−0.1 G
3 Vanity lights−−−8D
4 Rear seat spot lights−−−0.2 G
5 Door courtesy lights−−−0.2 G
6 Foot lights−−−0.2 G
7 Glove box light−−−0.2 G