2001 Lexus ES300 Owner's Manuals (in English)

ELECTRICAL COMPONENTS
448
No.FUSEAMPERECIRCUIT
1 ABS60Anti±lock brake system
2 INJ20No circuit
3 DRL NO.25Daytime Running Light System
4H±LP15*1Left±hand headlight (low beam)4 HLPLH(LWR)10*2
5H±LP15*1Right±hand headlight (lowbeam)5 HLPRH(LWR)10*2beam)
6 ALT100Charging system
7 T±STK30No circuit
8 HTR50Air conditioning system, Seat
heater
9 MAIN40Headlight, Starting system
10 DOME7.5
Theft deterrent system, Clock,
Door courtesy light, Interior
light, Ignition switch light, Vanity
light, Wireless remote control
system
11 ECU±B10Air conditioning system,
Power seat system
12 RADIO
NO.120Audio system
13 HAZARD15Emergency flashers, Turn
signal lights

ELECTRICAL COMPONENTS
449
*1: Vehicles with discharge headlight*2: Vehicles without discharge headlightNo.FUSEAMPERECIRCUIT
14 AM230Starting system
15 TEL5Telephone
16 HEAD
LH(UPR)20Left±hand headlight (high
beam)
17 ALT±S5Charging system
18 HEAD
RH(UPR)20Right±hand headlight
(high beam)
19 EFI15Multiport fuel injection
20 HORN10Theft deterrent system
21 RDI30Electronic cooling fan
system
22 CDS30Air conditioning system
23 A/F HTR25Air fuel ratio sensor
24 A/C10No circuit
25 SEAT
±HEATER20Seat heater system
26 HEATER10Air conditioning system
27 GAUGE10
Gauges and meters,
Service reminder
indicators and warning
buzzers, Back±up light,
Door courtesy light, Seat
heater, Power window
system

ELECTRICAL COMPONENTS
450
No.FUSEAMPERECIRCUIT
28 WIPER25Windshield wipers and
washer
29 MIRROR
±HEATER10Outside rear view mirror
defogger
30 ECU±IG15
Cruise control system,
Anti±lock brake system,
Shift lock system, Theft
deterrent system,
Electronic modulated
suspension, Wireless
remote control
31 IGN5SRS, Multiport fuel
injection
32 STOP15
Stop lights, High mounted
stoplight, Cruise control
system, Electronic
modulated suspension,
Anti±lock brake system,
Shift lock system, Power
seat system, Multiport
fuel injection
33 TAIL10Tail light, Side marker
lights, License plate lights
34 POWER
±OUTLET15Power outlet
35 OBD7.5On±board diagnosis
system
36 FOG15Fog lights
No.FUSEAMPERECIRCUIT
37 STARTER5Starting system
38 DOOR25
Door courtesy light, Theft
deterrent system, Power
door lock system, Trunk
lid opener, Fuel filler door
opener
39 PANEL7.5Instrument panel lights,
Glove box light
40 TURN7.5Emergency flashers, Turn
signal lights
41 RAD± NO.27.5Audio system
42 CIG15Cigarette lighter, Clock,
SRS
43 DEF40Rear window defogger,
Outside rear view mirror
defogger
44 PWR30Power window, Electronic
moon roof, Power seat
system
45 AM140No circuit
SPARESpare fuse

ELECTRICAL COMPONENTS
451
CHECKING BATTERYCONDITION
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
452
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.Checking battery exterior
64E068

ELECTRICAL COMPONENTS
453


1Terminals 2Hold±down clamp
Check the battery for corroded or loose
connections, cracks, or loose hold±down 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 hold±down clamp only enough to keep
the battery firmly in place. Overtightening may damage
the battery case.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 batterywhen washing it.

ELECTRICAL COMPONENTS
454
Checking battery fluid
Checking by hydrometer
64E075
Check the battery condition by the hydrometer
color.
1BLUE ± 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
455
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 turnedoff.
CHECKING AND REPLACING THE BLADE TYPE FUSES