2006 LEXUS RX330 fuses

INTRODUCTION
544
Checking battery condition
Tools:
Warm water
 Baking soda
 Grease
 Conventional wrench (for terminal clamp bolts)
Checking and replacing the blade type fuses
Parts (if replacement is necessary):
Fuse with same amperage rating as original
Checking the cartridge type fuses
Parts (if replacement is necessary):
Genuine Lexus fuse or equivalent with same amperage
rating as original
Adding washer fluid
Parts:
Water
 Washer fluid containing antifreeze (for winter use)
Tools:
 Funnel
POSITIONING THE JACK
 Front
Rear (Twowheel drive models)

SECTION 6 – 4
593
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications594
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Checking battery condition 601
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Battery recharging precautions 604
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Checking and replacing the blade type fuses 605
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Checking the cartridge type fuses 607
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Adding washer fluid 609
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.
Checking the headlight aim 609
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Replacing light bulbs 611
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ELECTRICAL COMPONENTS
594
SPECIFICATIONS
— FUSE LOCATIONS
1Engine compartment
2 3 Driver’s side instrument panel— FUSES

Engine compartment
(with electronically modulated air suspension)

ELECTRICAL COMPONENTS
596
No.FUSEAMPERECIRCUIT
1 AIRSUS60Electronically modulated air
suspension
2 INPJ/B100
All components in “HEATER”,
“H−LP CLN”, “TAIL”, “PANEL”,
“FR FOG”, “CIG”, “RADIO NO.
2”, “ECU− ACC”, “PWR OUTLET
NO. 1”, “GAUGE NO. 1”,
“ECU− IG NO. 1”,“ FR WIP”, “RR
WIP”, “WASHER”, “SEAT HTR”,
“ECU− IG NO. 2”, “P/SEAT”,
“PWR”, “TI&TE”, “RR DOOR
LH”, “RR DOOR RH”, “MPX− B”,
“AM1”, “DOOR NO. 2”, “STOP”,
“OBD”, “FUEL OPN”, “AIRSUS”
(7.5 A), “S/ROOF”, “FR DEF”
and “RR FOG” fuses
No.FUSEAMPERECIRCUIT
3 ALT140
All components in “INP −J/B”,
“AIRSUS” (60 A), “ABS NO. 1”,
“ABS NO. 2”, “RDI FAN”, “RR
DEF”, “HEATER”, “PBD”, “H −LP
CLN/MSB”, “H− LP CLN”, “PWR
OUTLET NO. 2”, “TOWING”,
“TAIL”, “PANEL”, “FR FOG”,
“CIG”, “RADIO NO. 2”,
“ECU− ACC”, “PWR OUTLET
NO. 1”, “GAUGE NO. 1”,
“ECU− IG NO. 1”, “FR WIP”, “RR
WIP”, “WASHER”, “HEATER”,
“SEAT HTR”, “ECU −IG NO. 2”,
“P/SEAT”, “PWR”, “TI&TE”, “RR
DOOR LH”, “RR DOOR RH”,
“MPX− B”, “AM1”, “DOOR NO.
2”, “STOP”, “OBD”, “FUEL
OPN”, “AIRSUS” (7.5 A),
“S/ROOF”, “FR DEF” and “RR
FOG” fuses
4 PBD30Power back door
5 HLP
CLN/MSB30Headlight cleaner
6 HLP CLN30Headlight cleaner

ELECTRICAL COMPONENTS
597
No.FUSEAMPERECIRCUIT
7 ABS NO. 130
Anti−lock brake system, vehicle
stability control system, traction
control system, brake assist
system
8 RR DEF40Rear window defogger
9 HEATER50Air conditioning system, rear
window defogger
10 DRL7.5Daytime running light system
11 HLP L
LW R15Left− hand headlight (low beam)
12 HLP L
UPR15Left− hand headlight (high beam)
13 HLP R
UPR15Right− hand headlight (high
beam)
14 PWR
OUTLET
NO. 220Power outlet
15 TOWING30Trailer lights
16 ABS NO. 250
Anti− lock brake system, vehicle
stability control system, traction
control system, brake assist
system
No.FUSEAMPERECIRCUIT
17 RDI FAN50Electric cooling fan
18 HAZ15Turn signal lights
19 CRT7.5Audio system
20 ALTS7.5Charging system
21 ETCS10Multiport fuel injection
system/sequential multiport fuel
injection system
22 HORN10Horns
23 MAIN40
Daytime running light system,
left− hand headlight, right− hand
headlight, all components in
“H− LP R LWR”, “H −LP R UPR”,
“H− LP L UPR”, “H− LP L LWR”
and “DRL” fuses
24 AM230Starting system, all components
in “GAUGE NO. 2”, “IGN” and
“INJ” fuses
25 RADIO
NO. 115Audio system, navigation system

ELECTRICAL COMPONENTS
605
CHECKING AND REPLACING THEBLADE TYPE FUSES
Engine compartment 1 Pullout tool 2 Spare fuses
Driver’s side instrument panel
1. Turn the ignition switch off and remove the fuse box lid.
Determine which fuse may be causing the problem. The lid of
the fuse box shows the name of the circuit for each fuse.

ELECTRICAL COMPONENTS
607
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.
You should normalize the power back door, power windows
and moon roof if they do not work or the jam protection function
does not operate correctly after replacing blown fuses. In
these cases, you should do the each instructions referring on
the following pages.

Power back door (See page 42.)
 Power windows (See page 65.)
 Moon roof (See page 131 or 134.)
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.
CHECKING THE CARTRIDGE TYPE
FUSES
Engine compartment
Driver’s side instrument panel

ELECTRICAL COMPONENTS
608
1Type A2Type B3Good4Blown
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.