Lexus ES300 2002 Owner's Manuals (in English)

ELECTRICAL COMPONENTS
328
No.FUSEAMPERECIRCUIT
38 POWERPOINT15Power outlet
39 RAD NO.120Car audio system, navigation
system
40 GAUGE110
Gauges and meters, clock,
outside temperature gauge,
multiinformation display, shift
lock system
41 ECUIG10
SRS airbag system, power
windows, antilock brake
system, electronic modulated
suspension, driving position
memory system
42 WIPER25Windshield wipers
43 HTR10Air conditioning system
44 MIR
HTR10Outside rear view mirror
heaters
45 AM15Starting system
46 FOG15Front fog lights
47 SUN
SHADE15Rear sunshade
48 GAUGE210
Auto antiglare inside rear
view mirror, compass, backup
lights, automatic light control
system, automa tic headlight
leveling system, cruise control
system, seat belt reminder
lights
No.FUSEAMPERECIRCUIT
49 PANEL10
Glove box light, console box
light, clock, outside
temperature gauge,
multiinformation display,
instrument cluster lights,
instrument panel lights,
overdriveoff indicator light
50 TAIL10Tail lights, parking lights,
license plate lights
51 PWR NO.420Rear passenger’s power
window (left side)
52 PWR NO.220Front passenger’s door lock
system, front passenger’s
power window
53 OBD7.5Onboard diagnosis system
54 SEAT
HTR20Seat heaters
55 WASHER15Windshield washer
56 FA NRLY10Electric cooling fans
57 STOP15Stop lights, high mounted stop-
light
58 FUEL
OPEN5Fuel filler door opener
59 DOOR NO.225
Multiplex communication
system (power door lock
system, autodoor locking
system, wireless remote
control system)

ELECTRICAL COMPONENTS
329
No.FUSEAMPERECIRCUIT
60 AMP25Car audio system
61 PWR NO.320Rear passenger’s power
window (right side)
62 PWR
SEAT30Power seats, driving position
memory system
63 PWR NO.130Driver’s door lock system,
driver’s power window, electric
moon roof
64 DEF40Rear window defogger
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 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 immediately and get immediate medical
attention. If possible, continue to apply water with a
sponge or cloth while traveling to the medical office.

ELECTRICAL COMPONENTS
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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 accidentally 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.
 Warning: Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.Checking battery exterior
 1
Terminals 2Holddown clamp
Check the battery for corroded or loose connections,
cracks, or loose holddown clamps.
1. If the battery is corroded, wash it off with a solution of warm
water and baking soda. Coat the terminals with grease to
prevent further corrosion.
2. If the connections are loose, tighten the clamp bolts but do
not overtighten.
3. Tighten the holddown clam p only enough to keep the
battery firmly in place. Overtightening may damage the battery
case.

ELECTRICAL COMPONENTS
331
NOTICE
Make sure the engine and all accessories are turned
off before performing maintenance.
 When checking the battery, remove the ground cable
first and reinstall it last.
 Be careful not to cause a short circuit with tools.
 Take care no solution gets into the battery when
washing it.
If the battery is disconnected or run down
The moon roof may not operate automatically and the jam
protection function will not function correctly after you
reconnect, replace or recharge the battery. In any of these
cases, you should normalize the moon roof. To normalize the
moon roof, see page 89.
Checking battery condition
Checking by indicator
Check the battery condition by the indicator color.
1 BLUE Good condition.
2WHITE Charging necessary. Have the battery checked
by your Lexus dealer.
3RED Have the battery checked by your Lexus dealer.
NOTICE
Do not refill the battery with water.

ELECTRICAL COMPONENTS
332
BATTERY RECHARGINGPRECAUTIONS
During recharging, the battery is producing hydrogen
gas.
Therefore, before recharging:
1. If recharging with the battery installed on the vehicle, be
sure to disconnect the ground cable.
2. Make sure the power switch on the recharger is off when
connecting the charger cables to the battery and when
disconnecting them.
CAUTION
Always charge the battery in an unconfined area. Do
not charge the battery in a garage or closed room
where there is not sufficient ventilation.
 Only do a slow charge (5 A or less). Charging at a
quicker rate is dangerous. The battery may explode
causing personal injuries.
NOTICE
Never recharge the battery while the engine is running.
Also, be sure all accessories are turned off.
CHECKING AND REPLACING THE BLADE TYPE FUSES
Engine compartment
Engine compartment 1Pullout tool 2Spare fuses

ELECTRICAL COMPONENTS
333
Driver’s side instrument panel
1. Turn the ignition switch off and remove the auxiliary
box.
Determine which fuse may be causing the problem. The
auxiliary box shows the name of the circuit for each fuse.2. Make sure the inoperative component is turned off. Pull
the suspected fuse straight out with the pullout tool and
check it. If it has blown, push a new fuse into the clips.

ELECTRICAL COMPONENTS
334
GoodBlown
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 “RAD NO.1”, “RAD NO.2” or “POWER POINT” 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.
CAUTION
Never use a fuse with a higher amperage rating, or any
other object, in place of a fuse. This may cause
extensive damage and possibly a fire.

ELECTRICAL COMPONENTS
335
CHECKING THE CARTRIDGE TYPEFUSES
Engine compartment
Driver’s side instrument panel 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.
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.
NOTICE
Before replacing the fuses, have the cause of electrical
overload determined and repaired by your Lexus dealer.

ELECTRICAL COMPONENTS
336
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.
 Do not fill washer fluid over the “NORMAL” level.
CHECKING THE HEADLIGHT AIM
(vehicles with discharge headlight)
 1 Vertical 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.

ELECTRICAL COMPONENTS
337
Adjusting the vertical aiming
1. Turn the vertical movement adjusting bolt 1 in either
direction using a Phillipshead screwdriver. At this time, keep
the turning direction and number of turns in mind.
2. Turn the vertical movement adjusting bolt 2 the same
number of turns and in the same direction at step 1 using a
Phillipshead screwdriver.