2008 LEXUS RX400H lights

360
4-3. Do-it-yourself maintenance
RX400h_U
57RR FOG 7. 5No circuit
58AIR SUS7. 5No circuit
59DOOR NO.225Multiplex communication system
60S/ROOF 30Moon roof
61TA I L10
Front fog lights, instrument cluster
lights, instrument panel lights, front
side marker lights, tail lights, license
plate lights, towing converter
62PA N E L7. 5
Glove box light, instrument cluster
lights, instrument panel lights, console
box light, audio system, power outlet,
garage door opener switch, transmis-
sion system, headlight cleaner, seat
heaters, steering switches, power
back door
63ECU-IG NO.17. 5
Power rear view mirror control, moon
roof, multiplex communication system,
shift lock control system, multiplex
communication system (power door
lock system, wireless remote control
system), driving position memory sys-
tem, vehicle dynamics integrated
management, windshield wipers,
transmission, seat heaters, power
seats, tilt and telescopic steering,
power back door
64ECU-IG NO.210
Automatic headlight leveling system,
vehicle dynamics integrated manage-
ment, dynamic laser cruise control,
headlight cleaner, adaptive front-light-
ing system
FuseAmpereCircuit

361
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
65HEATER7. 5
Electric cooling fan, air conditioning
system, rear window defogger, engine
switch, windshield wiper de-icer
66WA S H E R20Windshield washer
67SEAT HTR20No circuit
68GAUGE NO.17. 5
Instrument cluster lights, instrument
panel lights, emergency flashers, seat
belt, power outlet, multiport fuel injec-
tion system/sequential multiport fuel
injection system, back-up lights
69FR WIP30Windshield wipers
70RR WIP15Rear window wiper
71INJ 20
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
72IGN10
SRS airbag system, multiport fuel
injection system/sequential multiport
fuel injection system, front passenger
occupant classification system, stop
lights, hybrid vehicle immobilizer sys-
tem
73GAUGE NO.27. 5Gauge and meters
74ECU-ACC7. 5
Navigation system display, power rear
view mirror control, shift lock control
system, multiplex communication sys-
tem
75CIG15Po w e r o u t l e t
76PWR OUTLET
NO.115Po w e r o u t l e t
FuseAmpereCircuit

362
4-3. Do-it-yourself maintenance
RX400h_U
77RADIO NO.27. 5
Instrument cluster lights, instrument
panel lights, navigation system, audio
system
78MIR HTR10Outside rear view mirror defogger
79PWR30
Power window, multiplex communica-
tion system (power door lock system,
wireless remote control system), out-
side rear view mirror
80P/ S E AT30Po w e r s e a t s
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (→P. 3 6 5 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
FuseAmpereCircuit

364
4-3. Do-it-yourself maintenance
RX400h_U
Headlight aim (vehicles with discharge headlights)
■Vertical movement adjusting screw and bolt
Adjustment screw
Adjustment bolt
■ Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
■ Adjusting the headlight aim
Turn the screw in either direc-
tion using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns in mind.
Turn the bolt the same number
of turns and in the same direc-
tion as step 1 using a Phillips-
head screwdriver.
If the error is over the value
specified above, take the vehicle
to your Lexus dealer to adjust
the headlight aim.
STEP1
STEP2
STEP3
STEP4
STEP1
STEP2

367
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U■
Headlight low beam (halogen bulb)
Turn the cover counterclockwise.
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
■ Front turn si gnal lights
Turn the bulb base counterclock-
wise.
STEP1
STEP2
STEP3
STEP1

368
4-3. Do-it-yourself maintenance
RX400h_URemove the light bulb.
■ Front side marker lights
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ Parking lights
Turn the bulb base counterclock-
wise.
STEP2
STEP1
STEP2
STEP1

369
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_URemove the light bulb.
■ Rear side marker lights
Right-hand side only:
Remove the bolts using a Phillips-
head screwdriver and remove the
clips.
Removing clip
Installing clip
Turn the bulb base counterclock-
wise.
STEP2
STEP1
STEP2

370
4-3. Do-it-yourself maintenance
RX400h_URemove the light bulb.
■ Rear turn signal lights
Remove the access hole cover.
Use a flathead screwdriver which is
wrapped with a cloth.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP3
STEP1
STEP2
STEP3