1999 Lexus ES300 electrical spec

AIR CONDITIONING AND AUDIO
243
fluttering.
Station swapping ± If the FM signal you are listening to
is interrupted or weakened, and there is another strong
station nearby on the FM band, your radio may tune in
the second station until the original signal can be picked
up again.
AM
Fading ± AM broadcasts are reflected by the upper
atmosphere ± especially at night. These reflected
signals can interfere with those received directly from
the radio station, causing the radio station to sound
alternately strong and weak.
Station interference ± When a reflected signal and a
signal received directly from a radio station are very
nearly the same frequency, they can interfere with each
other, making it difficult to hear the broadcast.
Static ± AM is easily affected by external sources of
electrical noise, such as high tension power lines,
lightening, or electrical motors. This results in static.
Caring for your cassette player and tapes
For high performance from your cassette player and
tapes:
Clean the tape head and other parts regularly.
 A dirty tape head or tape path can decrease sound
quality and tangle your cassette tapes. The easiest
way to clean them is by using a cleaning tape. (A wet
type is recommended.)

DRIVING TIPS
305
Tires
Ensure that your vehicle's tires are properly inflated.
Adjust the tire pressure to the recommended cold tire
pressure indicated below:
Tire pressure, kPa (kgf/cm
2 or bar, psi)
Front 220 (2.2, 32)
Rear 220 (2.2, 32)
 The trailer tires should be inflated to the pressure
recommended by the trailer manufacturer in respect
to the total trailer weight.
Trailer lights
Trailer lights must comply with federal,
state/provincial and local regulations. See your local
recreational vehicle dealer or rental agency for the
correct type of wiring and relays for your trailer.
Check for correct operation of the turn signals and
stop lights each time you hitch up. Direct splicing may
damage your vehicle's electrical system and cause a
malfunction of your lights.
Break±in schedule
 Lexus recommends that you do not tow a trailer with
a new vehicle or a vehicle with any new power train
component (engine, transmission, differential, wheel
bearing, etc.) for the first 800 km (500 miles) of
driving.
Maintenance
If you tow a trailer, your vehicle will require more
frequent maintenance due to the additional load. For
this information, please refer to the scheduled
maintenance information in the ºOwner's Manual
Supplement/ Maintenance Scheduleº.
 Retighten all fixing bolts of the towing ball and bracket
after approximately 1000 km (600 miles) of trailer
driving.
Pre±towing safety check
 Check that your vehicle remains level when a loaded
or unloaded trailer is hitched. Do not drive if the
vehicle has an abnormal nose±up or nose±down
condition, and check for improper tongue load,
overload, worn suspension or other possible causes.
 Make sure the trailer cargo is securely loaded so that
it cannot shift.
 Check that your rear view mirrors conform to any
federal, state/provincial or local regulation. If they do
not, install required rear view mirrors appropriate for
towing purposes.

ENGINE
372± IGNITION SYSTEM
Spark plug ± Make DENSO NGK
± Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
± ELECTRICAL SYSTEM
Battery ± Maintenance type battery Specific gravity reading at 20 C (68F):
Charging rates Quick charge Slow charge
± Non±maintenance battery Open voltage at 20C (68F):
Charging rates
1.260 Fully charged
1.160 Half charged
1.060 Discharged
15A max.
5A max.
12.7V Fully charged
12.3V Half charged
11.9V Discharged
[Voltage that is checked 20 minutes after the key is
removed with all the lights turned off]
5A max.

SECTION 6 ± 4
408
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications409
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition 415
. . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 422
. . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses 423
. . . . .
Checking the cartridge type fuses 429
. . . . . . . . . . . . . . .
Adding washer fluid 432
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim 432
. . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs 435
. . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL COMPONENTS
409
SPECIFICATIONS
± FUSE LOCATIONS
64E001

ELECTRICAL COMPONENTS
426
64L013
2. Make sure the inoperative component is turned
off. Pull the suspected fuse straight out with the
pull±out tool and check it. If it has blown, push a new
fuse into the clips.

ELECTRICAL COMPONENTS
427
64G008

Good
Blown
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 ºRAD NO.1º, ºRAD NO.2º or ºPWR
OUTLETº 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
435
64E020a

1Arrow 2Acceptable range
Horizontal movement gauge: The arrow 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 your Lexus dealer as soon as
possible. Use bulbs with the bulb numbers and wattage
ratings given in the table.