fuse Lexus ES300 2003 s (in English) User Guide

ELECTRICAL COMPONENTS
338
No.FUSEAMPERECIRCUIT
19 ABS NO.240
Anti−lock brake system,
vehicle skid control system,
traction control system, brake
assist system
20 MAIN40
All components in “HEAD LH
LWR”, “HEAD RH LWR”, “HEAD
LH UPR”, “HEAD RH UPR” and
“DRL” fuses
21 ABS NO.340
Anti −lock brake system,
vehicle skid control system,
traction control system, brake
assist system
22 HTR50Air conditioning system
23 RDI30Electric cooling fan
24 SPARE5Spare fuse
25 SPARE10Spare fuse
26 ABS NO.160
All components in “RDI FAN”,
“ABS NO.2”, “ABS NO.3”,
“CDS”, “HTR (50 A)” and “ADJ
PDL” fuses and anti −lock brake
system, vehicle skid control
system, traction control
system, brake assist system
No.FUSEAMPERECIRCUIT
27 ALT120
All components in “DEF”, “PWR
NO.1”, “PWR NO.2”, “PWR
NO.3”, “PWR NO.4”, “STOP”,
“DOOR NO.2”, “OBD”, “PWR
SEAT”, “FUEL OPEN”, “FOG”,
“AMP”, “PANEL”, “TAIL”,
“AM1”, “CIG”, “POWER
POINT”, “RAD NO.2”,
“ECU− ACC”, “GAUGE1”,
“GAUGE2”, “ECU− IG”,
“WIPER”, “WASHER”, “HTR
(10 A)”, “SEAT HTR” and
“SUN− SHADE” fuses
28 SPARE15Spare fuse
29 A/C10Air conditioning system
30 DRL5Daytime running light system
31 HEAD RH
LW R15Right −hand headlight (low
beam)
32 HEAD LH
LW R15Left −hand headlight (low
beam) and front fog lights

ELECTRICAL COMPONENTS
339
No.FUSEAMPERECIRCUIT
33 ECUB10
Multiplex communication
system (power door lock
system, security system,
auto−door locking system,
automatic light control system,
headlight delay off system, tail
light auto cut system,
illuminated entry system,
daytime running light system,
wireless remote control
system) air conditioning
system, electronic modulated
suspension, driving position
memory system
34 DOME7.5
Ignition switch light, interior
light, personal lights, foot
lights, door courtesy lights,
trunk light, vanity lights, garage
door opener, clock, outside
temperature gauge,
multi− information display
35 CIG15Cigarette lighter
36 ECU
ACC5
Power rear view mirrors, clock,
multi− information display,
driving position memory
system
No.FUSEAMPERECIRCUIT
37 RAD NO.210Car audio system, navigation
system
38 POWER
POINT15Power outlet
39 RAD NO.120Car audio system, navigation
system
40 GAUGE110
Gauges and meters, clock,
outside temperature gauge,
multi −information display, shift
lock system
41 ECUIG10
SRS airbag system, power
windows, anti− lock brake
system, electronic modulated
suspension, driving position
memory system
42 WIPER25Windshield wipers
43 HTR10Air conditioning system
44 MIR
HTR10Outside rear view mirror
heaters

ELECTRICAL COMPONENTS
340
No.FUSEAMPERECIRCUIT
45 AM15Starting system
46 FOG15Front fog lights
47 SUN
SHADE15Rear sunshade
48 GAUGE210
Auto anti −glare inside rear
view mirror, compass, back −up
lights, automatic light control
system, automatic headlight
leveling system, cruise control
system, seat belt reminder
lights
49 PANEL10
Glove box light, console box
light, clock, outside
temperature gauge,
multi− information display,
instrument cluster lights,
instrument panel lights,
overdrive −off indicator light
50 TAIL10Tail lights, parking lights,
license plate lights
51 PWR NO.420Rear passenger’s power
window (left side)
No.FUSEAMPERECIRCUIT
52 PWR NO.220Front passenger’s door lock
system, front passenger’s
power window
53 OBD7.5On −board 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, auto −door locking
system, wireless remote
control system)
60 AMP25Car audio system
61 PWR NO.320Rear passenger’s power
window (right side)

ELECTRICAL COMPONENTS
341
No.FUSEAMPERECIRCUIT
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
344
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 1
Pullout tool 2Spare fuses

ELECTRICAL COMPONENTS
345
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
346
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 “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
347
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.

ELECTRICAL COMPONENTS
348
NOTICE
Before replacing the fuses, have the cause of electrical
overload determined and repaired by your Lexus dealer.
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.