fuse box Lexus IS250 2010 Owner's Manual

1
2
3
4
5
6
7
IS350/250_U
5
3-6. Using the storage featuresList of storage features............... 333
• Glove box .................................... 333
• Console boxes ........................... 334
• Overhead console .................. 335
• Cup holders................................. 336
•Bottle holders/door pockets .............................. 338
3-7. Other interior features Sun visors......................................... 339
Vanity mirrors............................... 340
Clock .................................................. 341
Satellite switches .......................... 342
Ashtrays ........................................... 345
Cigarette lighter ........................... 346
Power outlet ................................... 347
Seat heaters................................... 348
Seat heaters and ventilators ...................................... 351
Armrest ............................................ 354
Rear sunshade .............................. 355
Trunk storage extension ........... 357
Coat hooks .................................... 358
Floor mat.......................................... 359
Trunk features............................... 360
Garage door opener.................. 363
Compass.......................................... 369
Safety Connect ............................. 373 4-1. Maintenance and care
Cleaning and protecting the vehicle exterior................... 382
Cleaning and protecting the vehicle interior ................... 385
4-2. Maintenance Maintenance requirements.............................. 388
General maintenance ............... 390
Emission inspection and maintenance (I/M)
programs ...................................... 393
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................................. 394
Hood ................................................. 397
Positioning a floor jack.............. 398
Engine compartment................. 400
Tires .................................................... 414
Tire inflation pressure................. 425
Wheels ............................................. 429
Air conditioning filter................... 431
Electronic key battery ................ 434
Checking and replacing fuses ................................................ 436
Headlight aim ............................... 450
Light bulbs....................................... 452
4Maintenance and care

400
4-3. Do-it-yourself maintenance
IS350/250_U
Engine compartment
IS350
Battery (→P. 4 1 0 )
Engine oil level dipstick (→P. 403)
Engine oil filler cap (→P. 403)
Brake fluid reservoir (→P. 4 0 8 )
Fuse boxes ( →P. 4 3 6 )Washer fluid tank
(→P. 413)
Electric cooling fans
Condenser ( →P. 4 0 8 )
Radiator ( →P. 4 0 8 )
Engine coolant reservoir (→P. 4 0 6 )

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U
IS250
Battery (→P. 4 1 0 )
Engine oil level dipstick (→P. 403)
Engine oil filler cap (→P. 403)
Brake fluid reservoir (→P. 4 0 8 )
Fuse boxes ( →P. 4 3 6 )Washer fluid tank
(→P. 413)
Electric cooling fans
Condenser ( →P. 4 0 8 )
Radiator ( →P. 4 0 8 )
Engine coolant reservoir (→P. 4 0 6 )

436
4-3. Do-it-yourself maintenance
IS350/250_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 START STOP” switch OFF.
Engine compartment (type B fuse box): Remove the engine
compartment cover. ( →P. 4 0 2 )
Open the fuse box cover.
Engine compartment (type A fuse box)
Push the tabs in and lift the lid
off.
Engine compartment (type B fuse box) Push the tabs in and lift the lid
off.STEP1
STEP2
STEP3

438
4-3. Do-it-yourself maintenance
IS350/250_U
Check if the fuse has blown.
Ty p e A
Normal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amperage rating can be found
on the fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amperage rating can be found
on the fuse box lid.
Ty p e CNormal fuse
Blown fuse
Contact your Lexus dealer.
STEP6

439
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U
Removing the front controller (engine compartment: type B fuse box)
Lift the lid off while pushing the
tabs on either side.
Ty p e D Normal fuse
Blown fuse
Contact your Lexus dealer.

440
4-3. Do-it-yourself maintenance
IS350/250_U
Fuse layout and amperage ratings■ Engine compartment (type A fuse box)
FuseAmpereCircuit
1PWR HTR25 A
2TURN-HAZ15 AEmergency flashers, turn signals
3IG2 MAIN20 AIG2, IGN, GAUGE
4RAD NO.230 AAudio
5D/C CUT20 ADOME, MPX-B
6RAD NO.130 AAudio
7MPX-B10 A
Headlights, front fog lights, parking
lights, license plate lights, windshield
washer, horn, power door lock system,
power windows, power seats, electric
tilt and telescopic steering column,
meter, smart access system with push-
button start, outside rear view mirrors,
air conditioning system, multiplex
communication system
8DOME10 AInterior lights, meter
9CDS10 AElectric cooling fans

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U■
Engine compartment (type B fuse box)
FuseAmpereCircuit
1SPARE30 ASpare fuse
2SPARE25 ASpare fuse
3SPARE10 ASpare fuse
4FR CTRL-B25 AHeadlight high beams, horn
5A/F15 AExhaust system
6ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
7ALT-S7. 5 ACharging system
8TEL10 ALexus Enform
9STR LOCK25 ASteering lock
10H-LP CLN30 AHeadlight cleaner
11A/C COMP7. 5 AAir conditioning system
12DEICER25 AWindshield wiper de-icer
13FR CTRL-AM30 AFront fog lights, parking lights, wind-
shield washer

449
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U
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 the fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

567
Alphabetical index
IS350/250_U
Engine compartment cover............. 402
Engine coolantCapacity................................................. 524
Checking ............................................... 406
Preparing and checking before winter ...................................... 210
Engine coolant temperature gauge ........................................................ 151
Engine immobilizer system ................. 86
Engine oil Capacity................................................. 522
Checking ............................................... 403
Preparing and checking before winter ...................................... 210
Engine oil maintenance data ........... 405
EPS............................................................... 196
Event data recorder.............................469
First-aid kit storage belt..................... 360
Floor mat.................................................. 359
Fluid Brake .......................................................408
Washer ..................................................... 413
Fog lights
Switch ........................................................168
Wattage ................................................. 533
Footwell lights........................................ 329
Front fog lights Switch ........................................................168
Wattage ................................................. 533 Front passenger occupant
classification system .......................... 104
Front passenger's seat belt reminder light...................................... 473
Front seats Adjustment .................................................51
Driving position memory ..................53
Seat position memory ........................ 57
Front turn signal lights Switch.........................................................147
Wattage ................................................. 533
Fuel
Capacity .................................................. 521
Fuel gauge................................................ 151
Fuel pump shut off system............ 468
Gas station information ..................576
Information ............................................534
Refueling....................................................83
Fuel door .....................................................83
Fuel filler door ...........................................83
Fuel pump shut off system.................468
Fuses .......................................................... 436
Garage door opener ..........................363
Gas station information...................... 576
Gauges ........................................................151
Glove box ................................................333
Glove box light ...................................... 334
F
G