1999 LEXUS SC300 fuses

INTRODUCTION
327
Checking battery condition
Non±maintenance batteries
Tools:

Warm water

Baking soda

Grease

Conventional wrench (for terminal clamp bolts)
Maintenance type batteries
Parts (if level is low):

Distilled water
Tools:

Warm water

Baking soda

Grease

Conventional wrench (for terminal clamp bolts)

Coin (for vent plugs)

Funnel (only for adding distilled water)
Checking and replacing the blade type fuses
Parts (if replacement is necessary):

Fuse with same amperage rating as original
Checking the cartridge type fuses
Parts (if replacement is necessary):

Genuine Lexus fuse or equivalent with same amperage
rating as original
Adding washer fluid
Parts:

Water

Washer fluid containing antifreeze (for winter use)
Tools:

Funnel

SECTION 6 ± 4
374
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
374
Checking battery condition. . . . . . . . . . . . . . . . . . . . . . . . . . .
380
Battery recharging precautions . . . . . . . . . . . . . . . . . . . . . . . .
386
Checking and replacing the blade type fuses . . . . . . . . . . . . .
388
Checking the cartridge type fuses . . . . . . . . . . . . . . . . . . . . . .
393
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
396
Checking the headlight aim . . . . . . . . . . . . . . . . . . . . . . . . . .
396
Replacing light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
399
SPECIFICATIONS
±LOCATION OF FUSES

ELECTRICAL COMPONENTS
376± FUSES
Driver's side kick panel

ELECTRICAL COMPONENTS
388
NOTICE
Never recharge the battery while the engine is running.
Also, make sure all accessories are turned off.
CHECKING AND REPLACINGTHE BLADE TYPE FUSES

ELECTRICAL COMPONENTS
391
a. Look carefully at the fuse. If the thin wire is broken, the
fuse has blown. If you are not sure or if it is too dark to see,
try replacing the suspected fuse with one of the same value
that you know is good.
b. Only install 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 ºCIGº, ºRADIO NO.1º, ºDOMEº or ºHTRº 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.

ELECTRICAL COMPONENTS
393
CHECKING THE CARTRIDGETYPE FUSES

ELECTRICAL COMPONENTS
394If 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.