2006 LEXUS LS430 engine

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Washer fluid
Add washer fluid if “Low Washer Fluid” appears on the multi-information dis-
play. ( P.334 )
■Adding fluid
Add washer fluid until it approaches
the NORMAL (maximum) line.
NOTICE
■Use washer fluid only
Do not use soapy water or engine anti-freeze instead of washer fluid. 
Doing so may result in streaking the vehicle’s painted surface.
■Diluting washer fluid
Dilute washer fluid with water as necessary. 
Refer to the freezing temperatures listed on the washer fluid tank when diluting
wa
sher fluid.

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4-3. Do-it-yourself maintenance
Blade fuses
If a light does not turn on or if any of the electrical components do not operate,
a fuse may have blown. If this happens check and replace the fuses as neces
-
sary. 
If after replacing the fuse the light stil l
does not illuminate, the bulb may need
replacing.
Turn the ignition switch to the LOCK position.
Open the fuse box cover.
Fuse box inside the engine compartment
Push the tabs in and lift the lid off.
Fuse box inside the driver’s side
kick panel
Pull the tab and remove the lid.

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4-3. Do-it-yourself maintenance
Fuse layout and amperage rating
■Engine compartment fuse box (with electronically modulated air
suspension)
Determining if it fuse has blown.
Blown fuse
Replace it with one of an appropri -
ate amperage rating. The amper -
age rating can be found on the fuse
bo
x lid.
Normal fuse
If the lights do not turn on even
after the fuse has been replaced, a
bulb may need replacement.
(
P.313)
If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer
.
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302
4-3. Do-it-yourself maintenance
■Engine compartment fuse box (with out electronically modulated air
suspension)
FuseAmpereCircuit
ABS 250Vehicle stability control system
HEATER50Air conditioning system
ABS 130Vehicle stability control system
DEFOG40Rear window defogger
AIR SUS40Electronically modulated air suspension
system
FA N50Air conditioning system
R/B60
All components in "FR FOG", "TAIL",
"WASHER", "FR IG", "WIP", "H-LP CRN",
and "A/C IG"
FA N80Air conditioning system
D-J/B80
All components in "TI &TE", "DP/SEAT",
"A/C" "OBD", "STOP", "AM1", "MPX-IG",
"ABS-IG", "GAUGE", "AIRSUS", "D S/
HTR", "SECURITY", "PANEL", "D B/
ANC", "POWER OUTLET", "D-CIG", "D
RR-IG" and "D-ACC"
A LT140Charging system
P-J / B80
All components in "RR DOOR RH", "RR
DOOR LH", "D DOOR", "H-LP LVL", "P
DOOR", "P S/HTR", "P-IG", "P-ACC", "P
B/ANC", "P-CIG", "TEL" and "P RR-IG"
B AT T30All components in "RADIO NO.1", "AM2",
"HAZ" and "STR LOCK"
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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Engine compartment fuse box
FuseAmpereCircuit
ST30Starting system
D/C CUT20All components in "DOME", "MPX-B1",
and "MPS-B3"
A LT- S5Charging system
FuseAmpereCircuit
H-LP R LWR15Right-hand headlight (low beam)
H-LP L LWR15Left-hand headlight (low beam)
EFI NO.27. 5Multiport fuel injection system/sequential
multiport fuel injection system
S TA7. 5Multiport fuel injection system/sequential
multiport fuel injection system
INJ10Multiport fuel injection system/sequential
multiport fuel injection system
IGN7. 5Multiport fuel injection system/sequential
multiport fuel injection system
FR IG7. 5
Electric cooling fan, Headlight cleaner,
Charging system, Starting system, Rear
window defogger
A/C IG7. 5Air conditioning system
WIP30Windshield wiper
A/C15Fog lights
WA S H E R20Windshield washer
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305
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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306
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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309
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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