light lexus LS400 1996 Audio System / 1996 LS400: ELECTRICAL COMPONENTS

211
SECTION 6 ± 4
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications 212
Checking battery condition 216
Battery recharging precautions 220
Checking and replacing the blade type fuses 221
Checking the cartridge type fuses 223
Adding washer fluid 224
Checking the headlight aim 224
Replacing light bulbs 226

ELECTRICAL COMPONENTS
214
No.FUSEAMPERECIRCUIT
1TURN10Turn signal lights
2WIPER20Windshield wipers and washer
3ECU±IG15
Power steering control
system, Shift lock system,
Power seat control system,
Anti±lock brake system,
Traction control system,
Telephone, Charging system
4FR FOG15Fog lights
5PWR±IG10
Gauges and meters, service
reminder indicators and
warning buzzers,
Power antenna
6HEATER15Air conditioning system,
Rear window defogger
7GAUGE10
Gauges and meters, service
reminder indicators and
warning buzzers,
Preset steering,
Wireless remote control
system, Back±up lights
8IGN10
SRS airbag system,
Multiport fuel injection
system/sequential multiport
fuel injection system
9FUEL
OPN15Fuel opener system,
Air conditioning system
No.FUSEAMPERECIRCUIT
10RR CIG15Rear cigarette lighter,
Shift lock system
11FR CIG15
Front cigarette lighter,
SRS airbag system,
Air conditioning system, Clock
12OBD±II7.5On±board diagnosis system
13TRAC15Traction control system
14STOP LP25Stop lights,
High mounted stop light
15RADIO
NO.27.5Audio system,
Outside rear view mirror
16PANEL10
Instrument panel lights,
Air conditioning system,
Glovebox light, Audio system
17STARTER7.5Starting system
18TAIL10Tail lights, Side marker lights,
License plate lights
19STOP±S5
Shift lock system,
Height control system,
Anti±lock brake system,
Traction control system
20AIR SUS20Height control system

ELECTRICAL COMPONENTS
215
No.FUSEAMPERECIRCUIT
21DOOR20Door lock
22HORN10Horns
23RADIO
NO.120Audio system
24H±LP
R LWR10
Vehicles sold in U.S.A.
Right±hand headlight (low
beam)
25H±LP
L LWR10
Vehicles sold in U.S.A.
Left±hand headlight (low
beam)
26H±LP
L UPR20Left±hand headlight (high
beam)
27H±LP
R UPR20Right±hand headlight (high
beam)
28EFI NO.210Emission control system
29MIR±HTR10Outside rear view mirror
defogger
30FR S/HTR20Seat heater
31ALT±S7.5Charging system
32SRS7.5SRS airbag system
33TEL15Telephone
34ANTENA10Power antenna
No.FUSEAMPERECIRCUIT
35SEC
HORN7.5Theft deterrent system
36ECU±B15Anti±lock brake system,
Traction control system
37HAZ15Emergency flashers
38EFI NO.120
Multiport fuel injection
system/sequential multiport
fuel injection system
39DOME FR7.5
Front door courtesy lights,
Ignition switch light,
Foot lights, Interior light,
Vanity lights,
Wireless remote control
system, Clock
40DOME RR7.5Rear courtesy lights,
Trunk light, Audio system
41DRL10Vehicles sold in Canada
Daytime Running Light System
42H±LP
RH10Vehicles sold in Canada
Right±hand headlight
43H±LP
LH10Vehicles sold in Canada
Left±hand headlight

ELECTRICAL COMPONENTS
216
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 the 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.
If electrolyte gets on your clothes, there is a
possibility of its soaking through to your skin, so
immediately take off the exposed clothing and
follow the procedure above, if necessary.
If you happen to swallow electrolyte, drink a large
quantity of water or milk. Follow with milk of
magnesia, beaten raw egg or vegetable oil. Then go
immediately for emergency help.

ELECTRICAL COMPONENTS
223
CHECKING THE CARTRIDGE
TYPE FUSES

GoodMelted
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.
NOTICE
Before replacing the fuses, have the cause of
electrical overload determined and repaired by your
Lexus dealer.
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.

ELECTRICAL COMPONENTS
224
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

Beam angle gauge (vertical movement)
Beam angle gauge (horizontal movement)
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.

ELECTRICAL COMPONENTS
225

BubbleAcceptable range
Vertical movement gauge: 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.

MarkAcceptable range
Horizontal movement gauge: The mark should not deviate
by more than two marks 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.

ELECTRICAL COMPONENTS
226
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.
LIGHT LOCATION
Light Bulbs Bulb No. W Type

Headlights (High beam) HB3 60 A
Headlights H4 60/55 B
(High and low beam)
Fog lights HB4 51 C
Parking lights Ð 5 D
Front turn signal lights 1156 21 F
Front side marker lights Ð 3.8 D

8
7
9
10
12
11
19
18
17
16
15
14
13
ELECTRICAL COMPONENTS
227
Light Bulbs Bulb No. W Type
High mounted stoplight 921 18 D
License plate lights Ð 5 D
Back±up lights Ð 21 D
Stop and tail lights Ð 21/5 D
Rear turn signal lights Ð 21 D
Rear side marker lights Ð 5 D
Light Bulbs Bulb No. W Type
Front personal lights Ð 8 F
Front interior light Ð 8 E
Rear interior light Ð 8 D
Rear personal light Ð 5 F
Vanity lights Ð 3 E
Glovebox light Ð 1.2 D
Footlights Ð 1.4 D
Door courtesy lights 194 3.8 D

20
ELECTRICAL COMPONENTS
228
Light Bulbs Bulb No. W Type
Trunk light 194 3.8 D
A: HB3 halogen bulbs
B: H4 halogen bulbs
C: HB4 halogen bulbs
D: Wedge base bulbs
E: Double end bulbs
F: Single end bulbs