2012 Lexus IS F fuse box

396
4-3. Do-it-yourself maintenance
IS F_U
Engine compartment
Battery (→P. 4 0 6 )
Engine oil level dipstick (→P. 399)
Engine oil filler cap (→P. 399)
Brake fluid reservoir (→P. 404)
Fuse boxes ( →P. 4 3 1 )Washer fluid tank
(→P. 4 0 9 )
Electric cooling fans
Condenser ( →P. 404)
Radiator ( →P. 404)
Engine coolant reservoir (→P. 4 0 2 )

431
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_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 to OFF.
Engine compartment (type B): Remove the engine compart-
ment cover. (→P. 397)
Open the fuse box cover.
Engine compartment (type A)
Push the tabs in and lift the lid
off.
Engine compartment (type B) Push the tabs in and lift the lid
off.STEP1
STEP2
STEP3

433
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_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

442
4-3. Do-it-yourself maintenance
IS F_U■
Passenger’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30 APo w e r s e a t
2DOOR DL15 A
3OBD7. 5 AOn-board diagnosis system
4STOP SW7. 5 A
Stop lights, VDIM, shift lock system,
multiport fuel injection system/
sequential multiport fuel injection sys-
tem, smart access system with push-
button start
5TI & TE20 AElectric tilt and telescopic steering
column
6RAD NO. 310 AAudio system
7GAUGE7. 5 AMeters and gauges
8IGN10 A
SRS airbag system, stop lights, steer-
ing lock system, fuel system, front pas-
senger occupant classification system
9ACC7. 5 A
Clock, air conditioning system, audio
system, navigation system, display,
outside rear view mirrors, smart
access system with push-button start,
glove box light, console box light

444
4-3. Do-it-yourself maintenance
IS F_U
■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. 4 4 7 )
●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, protecting the wiring harness from damage.
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.

565
Alphabetical index
IS F_U
Engine coolant temperature gauge .......................................................150
Engine immobilizer system ................. 86
Engine oil Capacity...................................................516
Checking ............................................... 399
Preparing and checking before winter ...................................... 214
EPS............................................................... 197
Event data recorder................................. 21
First-aid kit storage belt..................... 356
Floor mat.................................................. 355
Fluid Brake ....................................................... 404
Washer ................................................... 409
Fog lights Switch ........................................................166
Wattage ................................................. 522
Footwell lights........................................ 330
Front fog lights Switch ........................................................166
Wattage ................................................. 522
Front passenger occupant
classification system ..........................106
Front passenger's seat belt
reminder light ......................................466
Front seats
Adjustment .............................................. 54
Driving position memory ................. 55
Seat position memory ........................ 59
Front turn signal lights
Switch ........................................................ 147
Wattage ................................................. 522 Fuel
Capacity .................................................. 515
Fuel gauge.............................................. 150
Fuel pump shut off system............. 462
Gas station information ..................576
Information ............................................523
Refueling....................................................83
Fuel door .....................................................83
Fuel filler door ...........................................83
Fuel pump shut off system................. 462
Fuses ........................................................... 431
Garage door opener ..........................359
Gas station information...................... 576
Gauges ...................................................... 150
Glove box ................................................335
Glove box light ......................................335
Hands-free system for mobile phone* ................................................... 299
Hazard lights Switch.......................................................454
Head restraints Adjusting ....................................................61
Headlight aim ......................................... 445
Headlight cleaner ...................................172
Headlights Discharge headlight
precautions......................................... 451
Replacing light bulbs ........................ 447
Switch.........................................................162
Wattage .................................................. 522
F
G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.