2005 Lexus GX470 fuses

INTRODUCTION
538
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.

INTRODUCTION
543
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
598
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications599
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Checking battery condition 608
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Battery recharging precautions 613
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Checking and replacing the blade type fuses 614
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Checking the cartridge type fuses 616
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Adding washer fluid 618
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Replacing light bulbs 619
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ELECTRICAL COMPONENTS
599
SPECIFICATIONS
Ð FUSE LOCATIONS
64PY003

1Engine compartment
2Driver's side instrument panel
Ð FUSES
64PY020

Engine compartment

ELECTRICAL COMPONENTS
601
No.FUSEAMPERECIRCUIT
1SPARE10Spare fuse
2ALT140
Charging system and all
components in ªAM1º,
ªHEATERº, ªCDS FANº, ªFR
FOGº, ªDEFOGº, ªAIR SUSº,
ªAC INVº, ªSEAT HEATERº,
ªOBDº, ªSTOPº, ªJ/Bº, ªRR ACº,
ªMIR HEATERº, ªBATT CHGº,
ªTOWING BRKº and ªTOWINGº
fuses
3SPARE15Spare fuse
4HEATER50Air conditioning system
5AIR
SUS50Rear height control air
suspension
6AM150
All components in ªACCº, ªCIGº,
ªIG1º, ªFR WIP±WSHº, ªRR
WIPº, ªRR WSHº, ªDIFFº,
ªECU±IGº, ªTEMSº and ªSTAº
fuses
7TOWING BRK30Trailer brake controller
8J/B50
All components in ªP FR P/Wº,
ªP RR P/Wº, ªD RR P/Wº, ªD
P/SEATº, ªP P/SEATº, ªTAILº,
ªPANELº and ªPOWER OR
TI&TEº fuses
9BATTCHG30Trailer sub battery
10TOWING40Trailer lights
No.FUSEAMPERECIRCUIT

ELECTRICAL COMPONENTS
603
24DEFOG30Rear window defogger
25AIRSUSNO.210Rear height control air
suspension
26SEAT
HEATER20Seat heaters
27DOME10
Ignition switch light, interior
lights, personal lights, foot
lights, running board lights,
door courtesy lights, inside
door handle lights,
multi±information display
28RADIO NO.120Audio system, navigation
system
No.FUSEAMPERECIRCUIT
29ECU±B10
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
30ECU±B NO.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 ªIGNº, ªSRSº, ªGAUGEº and
ªST2º fuses

ELECTRICAL COMPONENTS
614
CHECKING AND REPLACING THEBLADE 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 ªRemoving the engine compartment coversº
on page 538.)

Engine compartment 1 Pull±out tool 2 Spare fuses

Driver's side instrument panel
1. Turn the ignition switch off and open 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
616It 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.
CHECKING THE CARTRIDGE 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 ªRemoving the engine compartment coversº
on page 538.)

Engine compartment