1994 Lexus GS300 light

SECTION 6 – 4
207
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition
212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions
214 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses215 . . . . . . . . . . . . . . . .
Checking the cartridge type fuses216 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the windshield wiper blades217 . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL COMPONENTS
210
NO.FUSEAMPERECIRCUIT
1SEAT-HTR15Seat heater
2STOP20
Shift lock system, high mounted
stoplight, cruise control system,
anti-lock brake system, traction
control system, multiport fuel
injection system / sequential
multiport fuel injection system,
stop lights
3GAUGE15
Rear window and outside rear
view mirror defogger, heater
control system, air conditioning
system, gauges and meters,
service reminder indicators and
warning buzzers (except
discharge and open door
warning lights), charging system,
automatic transmission indicator,
back-up lights, daytime running
light system
4ECU-IG10
Shift lock system, telephone,
power door lock system for
passenger seat, seat belt system,
anti-lock brake system, power
steering control system, traction
control system, cruise control
system, driving pattern selector
switch, tilt and telescopic control
system, power antenna, electronic
cooling fan system, instrument
panel lights, automatic light
control system, power door lock
control system
NO.FUSEAMPERECIRCUIT
5CIG15
Clock, air conditioning system,
radio, cassette tape player,
compact disc player, shift lock
system, SRS, front and rear
cigarette lighters, power door
lock control system, power rear
view mirror control system
6TURN10Turn signal lights and indicator
7WIPER20Windshield wipers and
washer, headlight cleaner
8PANEL7.5
Automatic transmission
indicator, heater control
system, emergency flasher
switch, glovebox light, rear
ashtrays, clock, front cigarette
lighter light, radio, cassette
tape player, compact disc
player, driving pattern selector
switch light, instrument panel
lights, daytime running light
system
9SRS7.5SRS
10TAIL10License plate lights, parking
lights, tail lights

ELECTRICAL COMPONENTS
211
NO.FUSEAMPERECIRCUIT
11MIR HTR10Outside rear view mirror defogger
12FOG15Fog lights
13DRL7.5Vehicles sold in Canada
Daytime running light system
14TRAC10Traction control system
15DOME10
Interior light, vanity lights, electric
moon roof system, cruise control
system, open door warning light,
personal lights, trunk room light,
door courtesy lights, footlights,
ignition switch light, clock,
anti-lock brake system, power
antenna, radio, locking with
wireless remote control system,
theft deterrent system
16ECU-B7.5
Locking with wireless remote
control system, anti-lock brake
system, traction control system,
cruise control system, daytime
running light system, air
conditioning system
17ALT
SENSING7.5Charging system
NO.FUSEAMPERECIRCUIT
18AM215
Multiport fuel injection system /
sequential multiport fuel injection
system, SRS, charging lamp,
starting system, electronic
ignition system / distributor
ignition system, gauges and
meters, service reminder
indicators and warning buzzers
(except discharge and open door
warning lights)
19TEL15Telephone
20HAZ. HORN20Emergency flashers, horns
21EFI20
Electronically controlled
automatic transmission system,
multiport fuel injection system /
sequential multiport fuel injection
system
22RAD NO. 125
Radio, cassette tape player,
compact disc player, power
antenna
23IG230Electronic ignition system /
distributor ignition system

ELECTRICAL COMPONENTS
212
NO.FUSEAMPERECIRCUIT
24
HEAD RH15Vehicles sold in U.S.A.
Right-hand headlight
HEAD
RH-UPR10
Vehicles sold in Canada
Right-hand headlight (high
beam)
25
HEAD LH15Vehicles sold in U.S.A.
Left-hand headlight
HEAD
LH-UPR10Vehicles sold in Canada
Left-hand headlight (high beam)
26HEAD
RH-LWR10Vehicles sold in Canada
Right-hand headlight (low beam)
27HEAD
LH-LWR10Vehicles sold in Canada
Left-hand headlight (Iow beam)
28RDI FAN30Electronic cooling fan system
CHECKING BATTERY
CONDITION
CAUTION:
BATTERY PRECAUTIONS
The battery produces a 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 en route to the medical
office.

If electrolyte gets on your skin, thoroughly wash the
contacted area. If you feel a pain or burn, get medical
attention immediately.

GoodBlown
ELECTRICAL COMPONENTS
Driver’s side
kick panel
Engine compartment
216If you do not have a spare fuse, in an emergency you can pull
out the “CIG”, “RADIO NO. 1”, “DOME” or “SEAT HTR” fuse,
which may be dispensable for normal driving, and use it if its
amperage rating is the same.
If you cannot use one of the same amperage, use one lower
than, but as close as possible to, the amperage. If the
amperage is lower than that specified, the fuse might blow out
again but this does not indicate anything wrong. Be sure to get
the correct fuse as soon as possible and return the substitute
to its original clips.
It is a good idea to purchase a set of spare fuses and keep them
in your vehicle for emergencies.
If the new fuse immediately blows out, there is a problem with
the electrical system. Have your Lexus dealer correct it as
soon as possible.
CAUTION:
Never use a fuse with a higher amperage rating, or another
object, in place of a fuse. This may cause extensive
damage and possibly a fire.
CHECKING THE CARTRIDGE
TYPE FUSES
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
melted, they must be replaced.

ELECTRICAL COMPONENTS
Beam angle gauge
(vertical movement)
Beam angle gauge
(horizontal movement)
220
ADDING WASHER FLUID
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
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.

Beam angle gauge (vertical movement)
Acceptable range
Bubble
ELECTRICAL COMPONENTS
Beam angle gauge
(horizontal movement)
Mark
Acceptable range
221 To check the headlight aim, check the vertical and
horizontal gauges.
1. Look at the beam angle gauge (vertical movement). The
bubble of the gauge should not deviate from the center of the
gauge by more than four marks to either side of the gauge.2. Look at the beam angle gauge (horizontal movement). The
red mark should not deviate by more than one mark to either
side of the gauge.
If the error is over the value specified above, take the vehicle
to your Lexus dealer to adjust the headlight aim.
REPLACING LIGHT BULBS
The illustration 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:
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.

ELECTRICAL COMPONENTS
222Light Bulbs
Bulb No.WType
Headlights (low and high beam)900655A
Headlights (high beam)900565B
Fog lights—55C
Front turn signal and parking
lights1157 NA27 / 8D
Rear turn signal lights115627D
Stop and tail lights115727 / 8D
Back-up lights115627D
License plate lights—5E
Rear side marker lights115727 / 8D
Interior light
with moon roof
without moon roof—
—8
8F
D
Light BulbsBulb No.WType
Front personal lights—8D
Rear personal lights—3F
Glovebox light—1.2E
Door courtesy lights1943.8E
Footlights—1.4E
Vanity lights—3F
Trunk light1943.8E
A : HB4 halogen bulbs
B : HB3 halogen bulbs
C : H3 halogen bulbs
D : Single end bulbs
E : Wedge base bulbs
F : Double end bulbs