1999 Lexus GS300 Electrical Components

ELECTRICAL COMPONENTS
453
CHECKING THE CARTRIDGE
TYPE FUSES
64G019±1

ELECTRICAL COMPONENTS
454

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.
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
455
ADDING WASHER FLUID
64G009
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

ELECTRICAL COMPONENTS
456
64G020b

1Beam angle gauge (vertical movement)
2Beam 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.
Adjusting the headlight aiming

ELECTRICAL COMPONENTS
457
64g059

1Adjusting bolt A
2Adjusting bolt B

ELECTRICAL COMPONENTS
458
64G021a

1Bubble 2Acceptable range
Vertical movement gauge: The bubble of the gauge
should not deviate from the center of the gauge by more
than 2 marks to either side of the gauge.
If the bubble is out of the acceptable range of the beam
angle gauge, adjust it using bolt A.

ELECTRICAL COMPONENTS
459
64G022a

1Mark 2Acceptable range
Horizontal movement gauge: The mark should not
deviate by more than one mark to either side of the
gauge.
If the edge of the lens does not match ª0º mark, adjust
the lens using bolt B.
If the error is over the value specified above, take the
vehicle to your Lexus dealer to adjust the headlight aim.
After adjusting the headlight in the vertical direction,
check that the light has been shifted from the adjusted
position in the horizontal direction.
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
460
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
64G023±1