LEXUS LS430 2006 Owners Manual

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Fuse box in the front passenger’s side kick panel
FuseAmpereCircuit
MPX-IG7. 5
Tilt and telescopic steering, Power door
lock system, Power seat system, Engine
immobilizer system
D S/HTR15Seat heater, Climate control seat system
AIR SUS20Electronically modula ted air suspension
system
D-ACC7. 5Shift lock system, Theft deterrent system
PWR OUTLET15Power outlet
D-CIG15Rear cigarette lighter
OBD7. 5On-board diagnosis system
AM17. 5Starting system
ABS-IG7. 5Vehicle stability control system
D B/ANC5Seat belts
SECURITY7. 5Theft deterrent system
A/C7. 5Air conditioning system
STO P5Stop lights
D RR-IG10Refreshing seat
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4-3. Do-it-yourself maintenance
FuseAmpereCircuit
IG230SRS airbag system, Engine immobilizer sys-
tem, Steering lock system, Starting system
HAZ15Emergency flashers
ST R LO C K7. 5Steering lock system
AM27. 5All components in "STA" and "IG2", Start -
ing system
MPX-B17. 5
Power door lock system, Engine immobi -
lizer system, Steering lock system, Front
power seat, Rear power seat
MPX-B37. 5
Tilt and telescopic steering, Headlight
switch, Windshield wiper and washer
switch, Turn signal switch
DOME10
Vanity lights, Outer foot lights, lgnition
switch light, Clock, Gauges and meters,
Interior lights, Personal lights
MPX-B27. 5Gauges and meters, Vehicle stability con -
trol system, Illuminated entry system, TEL
P RR-IG10Refreshing seat
H-LP LVL7. 5Headlight leveling system, Adaptive Front
Lighting System (AFS)
P- I G7. 5Rain sensor, Air conditioning system, Moon
roof, Multi-information display, Clock
P S/HTR15Seat heater, Climate control seat system
P- ACC7. 5
Air conditioning system, Audio system,
Clock, Multi-information display, Illumi -
nated entry system
P- C I G15Front cigarette lighter
RADIO NO.17. 5Audio system
RR DOOR LH20Power door lock system, Power window,
Door closer system, Door courtesy lights
P DOOR25
Power door lock system, Power rear view
mirror control system, Outside rear view
mirror defogger, Door closer system, Door
courtesy lights, Power windows
TEL7. 5Audio system, Navigation system
P B/ANC5Seat belts, Seat belt buckle illumination
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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Fuse box in the trunk
FuseAmpereCircuit
RR DOOR RH20Power door lock system, Power window,
Door closer system, Door courtesy lights
D DOOR25
Power door lock system, Door closer sys -
tem, Power rear view mirror control system,
Outside rear view mirror defogger, Door
courtesy lights, Power windows
FuseAmpereCircuit
RR IG7. 5
Lexus park assist system, Electronically
modulated air suspen sion system, Theft
deterrent system, TEL
RR ACC7. 5Audio system, TEL
RR ECU-B7. 5
Rear air conditioning system, Theft deter -
rent system, Trunk light, Refreshing rear
seat
RR A/C7. 5Rear air conditioning system, Air purifier
RR S/HTR30Seat heater, Climate control seat system
RR S/SHADE15Sunshade
LCE LP7. 5License plate lights
S/ROOF30Moon roof
FUEL OPN10Fuel opener system, Trunk lid closer system
AMP30Audio system
P P/SEAT30Power seat system
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4-3. Do-it-yourself maintenance
FuseAmpereCircuit
RR SEAT LH30Power seat system
RR SEAT RH30Power seat system
CAUTION
■When replacing a fuse
Observe the following precautions. 
Failing to do so may cause damage , a
nd possibly a fire or injury.
• Never use a fuse of higher amperage rati ng, or us
e any other object in place of
a fuse.
• Always use genuine Lexus fuses, or a fuse of an equal standard of quality. 
Do not use copper wire or other objects, even as a temporary measure.
• Do not modify the fuse or the fuse box.
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4-3. Do-it-yourself maintenance
4
Maintenance and care
Cartridge fuses
■If there is an overload in the circuits from the battery
The fuses are designed to blow before the wiring harness is damaged.
If the headlights or other electrical components do not work and the blade
fuses are O.K., check the cartridge fuses.
■ Fuse location
■ Checking whether fuses ar
e good or blown
Good
Blown
If replacement is necessary,
replace with a genuine Lexus fuse
or equivalent with the same amper -
age rating as original.
Engine CompartmentEngine Compartment
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2

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4-3. Do-it-yourself maintenance
CAUTION
■When replacing fuses
Always use a genuine Lexus fuse or equivalent. 
Never install an ordinary wire - even as a temporary fix. 
This may cause extensive damage and possibly a fire.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer
.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Headlight aim
Adjusting the vertical aiming
Adjusting bolt A
Adjusting bolt B
Turn bolt A in either dir
ection using
a Phillips-head screwdriver.
Remember the turning direction
and the number of turns in mind.
Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the body around
the headlight is not deformed.
Park the vehicle on a level spot.
Sit in the driver’s seat.
Bounce the vehicle several times.
Check the headlight aim.
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2

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4-3. Do-it-yourself maintenance
Turn bolt B the same number of turns and in the same direction as
step 1 using a Phillip s-head scr
ewdriver.
If you cannot properly aim the headlights, take the vehicle to your Lexus dealer
to adjust the headlight aim. 
After adjusting the headlight in the vertical dir
ection, check if the light has been
shifted from the adjusted position in the horizontal direction.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Light bulbs
You can replace following bulbs. Contact your Lexus dealer for more infor-
mation about replacing other light bulbs.
■ Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. ( P.
3 7 2 )
High mounted stop light
Back-up light
Rear turn signal light
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4-3. Do-it-yourself maintenance
Replacing light bulbs
■High-mounted stop light