fuses Lexus GX470 2006 Repair Manual Information / LEXUS 2006 GX470 OWNER'S MANUAL (OM60B99U)

INTRODUCTION
495
Removing the engine compartment covers
Before checking the power steering fluid or fuses in the
engine compartment, remove the engine compartment
covers as follows:
61PY010
1Turn the plastic nuts counterclockwise and remove them.
2Push the core of the clips using a Phillips −head
screwdriver and remove the clips.
3Remove the covers.
Be careful not to lose the removed plastic nuts and clips.
After checking the items, install the engine compartment
covers and insert the plastic nuts and clips in their original
positions.
When inserting the clips, do as shown above.
NOTICE
After installing the engine compartment covers, make
sure the covers are securely in their original positions.

INTRODUCTION
499
Checking brake fluid
Parts (if level is low):
FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:
 Rag or paper towel
 Funnel (only for adding fluid)
Checking power steering fluid
Parts (if level is low):
Automatic transmission fluid DEXRON
II or III
Tools:
 Rag or paper towel
 Funnel (only for adding fluid)
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

SECTION 6 – 4
545
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications546
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Checking battery condition 551
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 554
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses 554
. . . . . . . . . . . . . . . .
Checking the cartridge type fuses 557
. . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 558
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Replacing light bulbs 559
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

ELECTRICAL COMPONENTS
546
SPECIFICATIONS
— FUSE LOCATIONS
64PY003
1Engine compartment
2Driver’s side instrument panel— FUSES
64PY020

Engine compartment

ELECTRICAL COMPONENTS
547
Driver’s side instrument panel
No.FUSEAMPERECIRCUIT
1SPARE10Spare fuse
2ALT140
Charging system and all
components in “AM1”,
“HEATER”, “CDS FAN”, “FR
FOG”, “DEFOG”, “AIR SUS”,
“AC INV”, “SEAT HEATER”,
“OBD”, “STOP”, “J/B”, “RR AC”,
“MIR HEATER”, “BATT CHG”,
“TOWING BRK” and “TOWING”
fuses
3SPARE15Spare fuse
4HEATER50Air conditioning system
5AIR
SUS50Rear height control air
suspension
6AM150
All components in “ACC”, “CIG”,
“IG1”, “FR WIP −WSH”, “RR
WIP”, “RR WSH”, “DIFF”,
“ECU− IG”, “TEMS” and “STA”
fuses
7TOWING
BRK30Trailer brake controller
8J/B50
All components in “P FR P/W”,
“P RR P/W”, “D RR P/W”, “D
P/SEAT”, “P P/SEAT”, “TAIL”,
“PANEL” and “POWER OR
TI&TE” fuses
9BATTCHG30Trailer sub battery
10TOWING40Trailer lights

ELECTRICAL COMPONENTS
549
No.FUSEAMPERECIRCUIT
29ECUB10
Multiplex communication
system, vehicle stability control
system, wireless remote
control system, inside rear
view mirror, air conditioning
system, electronic modulated
suspension, driving position
memory system, power
windows, moon roof, rear view
monitor system
30ECUBNO.210Theft deterrent system
31ABS
MTR40
Anti −lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
32AM230Starting system, all components
in “IGN”, “SRS”, “GAUGE” and
“ST2” fuses
33ABS
SOL30
Anti −lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
No.FUSEAMPERECIRCUIT
34ALTS7.5Charging system
35MAYDAY7.5Lexus Link System
36HORN10Horns
37A/F
HEATER15A/F sensor
38TRNHAZ15Turn signal lights
39ETCS10Electronic throttle control system
40EFI20Multiport fuel injection
system/sequential multiport fuel
injection system
41D FR P/W20Power window
42DR/LCK25Power door lock
43TOWING30Towing converter
44RADIO NO.230Audio system, navigation
system
45A/PUMP50Multiport fuel injection
system/sequential multiport fuel
injection system
46IGN10
Multiport fuel injection
system/sequential multiport fuel
injection system, vehicle
stability control system

ELECTRICAL COMPONENTS
554
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, make sure all accessories are turned off.
CHECKING AND REPLACING THE BLADE TYPE FUSES
The engine compartment fuse box is located under the left
side engine compartment cover. Before checking the
engine compartment fuses, remove the cover. (For
details, see “Removing the engine compartment covers”
on page 495.)
Engine compartment 1 Pullout tool 2 Spare fuses

ELECTRICAL COMPONENTS
556
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 “CIG”, “RADIO NO.1” or “SEAT HEATER” 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 that is
lower, but as close to the rating as possible. 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.
You should normalize the power windows and moon roof if they
do not operate automatically or the jam protection function
does not operate correctly after replacing blown fuses. To
normalize the power windows and moon roof, see “Power
window switches” on page 40 and “Moon roof” on page 103.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
557
CHECKING THE CARTRIDGE TYPEFUSES
The engine compartment fuse box is located under the left
side engine compartment cover. Before checking the
engine compartment fuses, remove the cover. (For
details, see “Removing the engine compartment covers”
on page 495.)
Engine compartment
Driver’s side instrument panel
Good Blown

ELECTRICAL COMPONENTS
558If 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.
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.