fuses LEXUS RX400H 2008 Owners Manual

TABLE OF CONTENTSIndex
RX400h_U
4
Using the DVD player (MP3 discs) ................................. 249
Using the video mode ................. 251
Changing the initial setting ...... 253
3-4. Using the interior lights .......... 260 Interior lights list........................... 260
• Interior lights ............................... 263
• Personal lights ............................ 264
3-5. Using the storage features .... 265 List of storage features............... 265
• Glove box..................................... 265
• Console boxes ........................... 266
• Coin holder................................. 268
• Overhead console.................... 269
• Cup holders................................. 269
• Door pockets ............................... 271
3-6. Other interior features........... 272 Sun visors......................................... 272
Vanity mirror .................................. 273
Clock ................................................. 274
Outside temperature display ............................................ 275
Multi-display light control ......... 276
Power outlets ................................. 277
Seat heaters ................................... 280
Armrest ............................................ 282
Floor mat......................................... 283
Luggage compartment features......................................... 284
Garage door opener.................. 287
Compass.......................................... 292 4-1. Maintenance and care............ 298
Cleaning and protecting the vehicle exterior ......................... 298
Cleaning and protecting the vehicle interior............................. 301
4-2. Maintenance............................. 304 Maintenance requirements .... 304
General maintenance ............... 306
Emission inspection and maintenance (I/M)
programs ..................................... 309
4-3. Do-it-yourself maintenance ... 310 Do-it-yourself service precautions ................................... 310
Hood................................................... 313
Positioning a floor jack................ 314
Engine compartment................... 316
Tires .................................................... 331
Tire inflation pressure................ 340
Wheels.............................................. 344
Air conditioning filter.................. 346
Wireless remote control battery ........................................... 348
Rear seat entertainment system controller...................... 350
Checking and replacing fuses ................................................ 352
4Maintenance and care

Maintenance and care4
297
RX400h_U
4-1. Maintenance and care ............................... 298
Cleaning and protecting the vehicle exterior............ 298
Cleaning and protecting the vehicle interior ............... 301
4-2. Maintenance .................. 304 Maintenance requirements ....................... 304
General maintenance .......... 306
Emission inspection and maintenance (I/M)
programs............................... 309 4-3. Do-it-yourself
maintenance ................. 310
Do-it-yourself service precautions ............................ 310
Hood ........................................... 313
Positioning a floor jack .......... 314
Engine compartment ............ 316
Tires............................................. 331
Tire inflation pressure........... 340
Wheels ...................................... 344
Air conditioning filter ........... 346
Wireless remote control battery .................................... 348
Rear seat entertainment system controller ................ 350
Checking and replacing fuses ........................................ 352
Headlight aim (vehicles with discharge
headlights) ............................ 364
Light bulbs................................ 365

311
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
ItemsParts and tools
Engine oil level (→P. 3 1 8 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 3 5 2 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 364)• Phillips-head screwdriver
Radiator and condenser (→P. 3 2 5 )
Tire inflation pressure ( →P. 3 4 0 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 3 2 9 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

352
4-3. Do-it-yourself maintenance
RX400h_U
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the engine switch to the LOCK position.
Remove the engine compartment cover. ( →P. 317)
Open the fuse box cover.
Engine compartment
Push the tabs in and lift the lid
off.STEP1
STEP2
STEP3

357
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
24RDI FAN NO.240Electric cooling fan
25HAZ15Turn signal lights, emergency flashers
26MPX-B17. 5Electric power steering system
27AM2 NO.130“GAUGE NO.2”, “IGN”, “INJ” and
“ST” fuses
28HORN10Horns
29MAIN40
“H-LP L LWR”, “H-LP L UPR”, “H-LP
R LWR”, “H-LP R UPR” and “DRL”
fuses
30IGCT NO.150
“INV W/P”, “IGCT NO.2”, “IGCT
NO.3”, “IGCT NO.4” and “IGCT
NO.5” fuses
31RADIO NO.115Audio system
32ECU-B NO.17. 5
Theft deterrent system, air condition-
ing system, gauges and meters, moon
roof, multiplex communication system
33DOME7. 5
Personal lights, interior lights, vanity
lights, engine switch light, gauges and
meters, navigation system
34ECU-B NO.27. 5Wireless remote control
35AMP30Audio system
36DOOR NO.1 25Power door lock system
37A/F25Air/fuel control system
38CRT7. 5Navigation system screen, rear seat
entertainment system
39H-LP R LWR15Right-hand headlight (low beam)
40INV W/P15Hybrid system
FuseAmpereCircuit

359
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U■
Driver’s side instrument panel
FuseAmpereCircuit
47RR DOOR RH20Rear right side power window
48RR DOOR LH20Rear left side power window
49FUEL OPN7. 5Fuel filler door opener
50FR FOG15Front fog lights
51OBD7. 5On-board diagnosis system
52FR DEF25Windshield wiper de-icer and all com-
ponents in “MIR HTR” fuses
53STOP10
Tail lights, high mounted stoplight,
vehicle dynamics integrated manage-
ment, shift lock control system,
multiport fuel injection system/
sequential multiport fuel injection sys-
tem
54TI&TE30Tilt and telescopic steering
55MPX-B7. 5Engine immobilizer system
56AM1 7. 5Starter system

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

363
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

475
Alphabetical index
RX400h_U
Preparing and checking before winter ...................................... 182
Engine oil maintenance data ............. 321
Engine switch............................................ 131
Engine switch light ............................... 260
EPS............................................................... 169
Event data recorder............................ 386
Floor mat.................................................. 283
Fluid Brake ....................................................... 325
Washer ................................................... 329
Fog lights Replacing light bulbs ....................... 365
Switch ..........................................................151
Wattage ................................................... 441
Foot well lighting .................................. 260
Front fog lights Replacing light bulbs ....................... 365
Switch ..........................................................151
Wattage ................................................... 441
Front passenger's seat belt
reminder light ....................................... 391
Front seats
Adjustment ...............................................49
Driving position memory ................. 55
Flattening seatbacks ........................... 50
Front side marker light
Replacing light bulbs ....................... 365
Wattage ................................................... 441
Front turn signal lights Replacing light bulbs ....................... 365
Wattage ................................................... 441 Fuel
Capacity .................................................433
Fuel gauge.............................................. 138
Gas station information ................. 484
Information ............................................ 442
Refueling.................................................... 78
Type .......................................................... 442
Fuel door ..................................................... 78
Fuel filler door ........................................... 78
Fuses ..........................................................352
Garage door opener .......................... 287
Gas station information......................484
Gauges ...................................................... 138
Glove box ................................................ 265
Glove box light ...................................... 266
Head restraints
Adjusting .................................................. 57
Headlight aim ......................................... 364
Headlight cleaner .................................. 156
Headlights
Discharge headlights precautions........................................375
Replacing light bulbs ....................... 365
Switch........................................................ 148
Wattage ....................................................441
Heaters
Seat heaters ......................................... 280
Side mirror.............................................204
Hood ........................................................... 313
Hooks Cargo hook ..........................................284
Shopping bag hook..........................284
F
G
H

478
Alphabetical index
RX400h_U
Rear side marker lightsWattage.................................................... 441
Rear turn signal lights Replacing light bulbs........................365
Wattage.................................................... 441
Rear window de fogger.......................204
Rear window wiper ............................... 155
Replacing Fuses ........................................................ 352
Light bulbs.............................................365
Rear seat entertainment system controller battery............................350
Tires ......................................................... 408
Wireless remote control battery ..................................................348
Reporting safety defects for
U.S.A. owners ..................................... 464
RSE
Replacing controller battery ........350
RSE ........................................................... 233
Road accident cautions......................... 32
Roof luggage carrier .............................. 70
Scuff lighting ...........................................260
Seat belts Adjusting the seat belt........................ 59
Automatic Locking Retractor .......... 61
Child restraint system
installation ..............................................112
Cleaning and maintaining
the seat belts ..................................... 302
Emergency Locking Retractor........ 61
How to wear your seat belt............. 58
How your child should wear
the seat belt .......................................... 62 Pregnant women,
proper seat belt use .......................... 61
Reminder light....................................... 391
Seat belt extenders...............................62
Seat belt pretensioners ..................... 60
Seat heaters ............................................280
Seating capacity....................................... 181
Seats
Adjustment ...................................... 49, 52
Adjustment precautions ............ 51, 54
Child seats/child restraint system installation .............................. 112
Cleaning .................................................. 301
Driver's seat position memory ...... 55
Flattening seatbacks ........................... 50
Head restraint .........................................57
Properly sitting in the seat................ 89
Seat heaters ......................................... 280
Service reminder indicators ............ 140
Shift lever Transmission.......................................... 135
If the shift lever cannot be shifted from P..................................... 419
Shopping bag hooks ........................... 284
Side airbags ................................................. 91
Side marker lights
Replacing light bulbs ....................... 365
Switch........................................................ 148
Wattage ................................................... 441
Side mirror
Adjusting and folding ......................... 68
Mirror position memory ................... 55
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