2003 Lexus ES300 Owner's Manuals (in English)

CHASSIS
331
Wheel selection
When replacing wheels, care should be taken to ensure
that they are equivalent to those removed in load capacity,
diameter, rim width, and offset.
Correct replacement wheels are available at your Lexus
dealer.
A wheel of a different size or type may adversely affect
handling, wheel and bearing life, brake cooling,
speedometer/odometer calibration, stopping ability, headlight
aim, bumper height, vehicle ground clearance, and tire or snow
chain clearance to the body and chassis.
CAUTION
Do not use wheels other than the manufacturer’s
recommended size, as this may cause dangerous
handling characteristics resulting in loss of control.
Otherwise, an accident may occur resulting in death or
serious injuries.
ALUMINUM WHEEL PRECAUTIONS
 When installing aluminum wheels, check that the wheel
nuts are tight after driving your vehicle the first 1600 km
(1000 miles).
 If you have rotated, repaired, or changed your tires, check
that the wheel nuts are still tight after driving 1600 km (1000
miles).
 When using tire chains, be careful not to damage the
aluminum wheels.
 Use only the Lexus wheel nuts and wrench designed for
your aluminum wheels.
 When balancing your wheels, use only Lexus balance
weights or equivalent and a plastic or rubber hammer.
 As with any wheel, periodically check your aluminum
wheels for damage. If damaged, replace immediately.

CHASSIS
332
SUSPENSION AND CHASSIS
CAUTION
Do not modify the suspension/chassis with lift kits,
spacers, springs, etc. It can cause dangerous handling
characteristics, resulting in loss of control.

CHASSIS
333

SECTION 6 – 4
334
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications335
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Checking battery condition 341
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 344
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses 344
. . . . . . . . . . . . . . . .
Checking the cartridge type fuses 347
. . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 348
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Checking the headlight aim 349
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs 350
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

ELECTRICAL COMPONENTS
335
SPECIFICATIONS
FUSE LOCATIONS
64E092
 1 2 Engine compartment
3 Driver’s side instrument panel FUSES
64E119
1
Engine compartment

ELECTRICAL COMPONENTS
336
64E101
2Engine compartment
64E102
3Driver’s side instrument panel

ELECTRICAL COMPONENTS
337
No.FUSEAMPERECIRCUIT
1 ABS NO.47.5
Anti−lock brake system,
vehicle skid control system,
traction control system, brake
assist system
2 A/F25Multiport fuel injection
system/sequential multiport
fuel injection system
3 DOOR125
Multiplex communication
system (power door lock
system, auto −door locking
system, wireless remote
control system)
4 TEL5No circuit
5 AM230All components in “IGN” and
“IG2” fuses and starting system
6 EFI20Multiport fuel injection
system/sequential multiport
fuel injection system
7 ALTS5Charging system
8 HEAD LH
UPR10Left −hand headlight (high
beam)
No.FUSEAMPERECIRCUIT
9 ETCS10Multiport fuel injection
system/sequential multiport
fuel injection system
10 HORN10Horns
11 IGN15Starting system
12 HEAD RH
UPR10Right −hand headlight (high
beam)
13 HAZ15Emergency flashers
14 D.C.C30All components in “ECU− B”,
“RAD NO.1” and “DOME” fuses
15 IG210
Multiport fuel injection
system/sequential multiport
fuel injection system, SRS
airbag system, front seat belt
pretensioners, cruise control
system
16 ST5Starting system
17 ADJ PDL30Power adjustable pedals
18 CDS30Electric cooling fan

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