light Lexus ES300 1994 Electrical Components

SECTION 6 – 4
197
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications198 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition
202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions
204 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses
204 . . . . . . . . . . . . . . . .
Checking the cartridge type fuses206 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the windshield wiper blades207 . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Passenger’s side kick panel
ELECTRICAL COMPONENTS
200
NO.FUSEAMPERECIRCUIT
1ECU-IG15
Cruise control system,
power steering control
system, shift lock system,
anti-lock brake system.
SRS airbag system, power
door lock and theft deterrent
system, power antenna,
telephone, electronic cooling
fan system.
2GAUGE15
Gauges and meters, service
reminder indicators and
warning buzzers (except
discharge and open door
warning lights), back-up
lights, electronically
controlled automatic
transmission system,
automatic transmission
overdrive system, rear
window and outside rear
view mirror defogger
3STOP25
Stop lights, cruise control
system cancel device, shift
lock system, anti-lock brake
system
4SEAT
HTR15Seat heater
5WIPER20Windshield wipers and
washer, headlight cleaner

ELECTRICAL COMPONENTS
201
NO.FUSEAMPERECIRCUIT
6TURN7.5Turn signal lights
7IGN7.5
Multiport fuel injection system/
sequential multiport fuel injection
system, electronic cooling fan
system, SRS airbag system
8CIG /
RADIO15
Radio, cassette tape player,
compact disc player, power
antenna, power rear view
mirrors, cigarette lighter,
theft deterrent system, shift
lock system, SRS airbag
system, clock
9MIR-HTR10Outside rear view mirror
defogger
10TAIL15Tail lights, parking lights.
11SRS7.5SRS airbag system
12STARTER10
Starting system, multiport fuel
injection system / sequential
multiport fuel injection system
13AM140Electronic ignition system /
distributor ignition system
14P/W30Electronic moon roof, power
windows
15DEF40Rear window and outside
rear view mirror defogger
NO.FUSEAMPERECIRCUIT
16OBD7.5On board diagnosis
17ALT-S7.5Charging system
18EFI15
Multiport fuel injection system /
sequential multiport fuel
injection system
19HAZ10Emergency flashers
20AM230
Electronic ignition system /
distributor ignition system,
multiport fuel injection system /
sequential multiport fuel injection
system
21TEL15Telephone
22HORH10Horns
23DOME20
Radio, cassette tape player,
compact disc player, power
antenna, interior light,
personal lights, door courtesy
lights, ignition switch light,
trunk room light, electronic
moon roof system, instrument
panel lights, door lock and theft
deterrent system, locking with
wireless remote control system
24ECU-B15
SRS airbag system, anti-
lock brake system, daytime
running light system

ELECTRICAL COMPONENTS
202
NO.FUSEAMPERECIRCUIT
25HEAD
(LH) HI15
Vehicles sold in the U.S.A.
Left-hand headlight
Vehicles sold in Canada
Left-hand headlight
(high beam)
26HEAD
(RH) HI15
Vehicles sold in the U.S.A.
Right-hard headlight
Vehicles sold in Canada
Right-hand headlight
(high beam)
27ALT100Charging system
28ABS60Anti-lock brake system
29HEAD(LWR-LH)15
Vehicles sold in Canada
Left-hand headlight
(low beam)
30HEAD(LWR-RH)15
Vehicles sold in Canada
Right-hand headlight
(low beam)
31FOG15Fog lights
32RADIO20
Radio, cassette tape player,
compact disc player, power
antenna
33DRL7.5Vehicles sold in Canada
Daytime Running Light System
34HTR40Environmental control system
*SPASpare fuse
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 traveling 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.

ELECTRICAL COMPONENTS
Engine compartment
Passenger’s side kick panel
206b. Install only a fuse with the amperage rating designated on
the fuse box lid.
If you do not have a spare fuse in an emergency, you can pull
out the “CIG / RAIDIO”, “RADIO”. “DOME” or “MIR-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. It may cause extensive damage
and possibly cause 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)
210
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 on 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.

Bubble
Beam angle gauge (vertical movement)
Acceptable range
ELECTRICAL COMPONENTS
Beam angle gauge
(horizontal movement)
Mark
Acceptable range
211 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 two marks to either side of the gauge.2. Look at the beam angle gauge (horizontal movement). The
blue 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 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 hare hands.
NOTICE:
Only use a bulb of the listed type.

ELECTRICAL COMPONENTS
212Light 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
High mounted stoplight92118E
License plate lights—5E
Rear side marker lights—5E
Light BulbsBulb No.WType
Interior light—8F
Personal lights
with moon roof
without moon roof—
—10
8D
Glovebox light—1.2F
Door courtesy lights—3E
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

ELECTRICAL COMPONENTS
Headlights
Fog lights
Parking and front turn signal lights
High mounted stoplight
Rear turn signal, stop and tail,
license plate, rear side marker
and back-up lights
213 LOCATION OF LIGHTS

Personal lightVanity light
Interior light
Glovebox lightDoor courtesy light
ELECTRICAL COMPONENTS
Trunk light
214