2000 Lexus LS400 light

ELECTRICAL COMPONENTS
452
35 RADIONO.120Audio system
36 MPX±B10Power window, Door lock,
Tilt and telescopic steering
37 ECU±B7.5Vehicle skid control system,
Daytime running light system
38 HAZ10Emergency flashers
No.FUSEAMPERECIRCUIT
39 EFI NO.120Multiport fuel injection
system/sequential multiport fuel
injection system
40 DOME10Interior light, Vanity lights,
Foot lights, Rear personal light,
Garage door opener
41 OBD7.5On±board diagnosis system
42 DRL10Daytime running light system
43 H±LP R LW R15Right±hand headlight (low
beam)
44 H±LP LLW R15Left±hand headlight (low beam)

ELECTRICAL COMPONENTS
454
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 l east 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
463
CHECKING THE CARTRIDGETYPE FUSES
64L016-3

1Good 2Melted
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.

ELECTRICAL COMPONENTS
465
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'spaint.
CHECKING THE HEADLIGHT AIM
(Vehicles with discharge headlight
only)

ELECTRICAL COMPONENTS
466
64L073a

1Vertical movement adjusting bolt 1
2Vertical movement adjusting bolt 2
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 vertical aiming

ELECTRICAL COMPONENTS
468
64L076a
2. Turn the vertical movement adjusting bolt 2 the same
number of turns and in the same direction at step 1.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.

ELECTRICAL COMPONENTS
469
CAUTION
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.
LIGHT LOCATION
64L022-5

ELECTRICAL COMPONENTS
470Light Bulbs Bulb No. W T
ype
1 Headlights (High beam) HB3 60
A
2 Parking lights ±±± 5
D
3 Headlights (Low beam)
Discharge bulbs D2R 35
B
Halogen bulbs HB4 51
C
4 Front turn signal lights ±±± 21
D
5 Front side marker lights 194 3.8
D
6 Fog lights HB4 51
C