2012 Lexus IS F fuse

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

432
4-3. Do-it-yourself maintenance
IS F_U
Driver's side instrument panelRemove the lid.
Passenger's side instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(→ P. 435) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
STEP4
STEP5

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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

434
4-3. Do-it-yourself maintenance
IS F_U
Removing the front controller (engine compartment: type B)
Lift the lid off while pushing the
tabs on either side.
Ty p e D Normal fuse
Blown fuse
Contact your Lexus dealer.

435
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_U
Fuse layout and amperage ratings■ Engine compartment (type A)
FuseAmpereCircuit
1ALT-S7. 5 ACharging system
2TURN-HAZ15 AEmergency flashers, turn signals
3IG2 MAIN20 AIG2, IGN, GAUGE
4RAD NO. 230 AAudio system
5D/C CUT20 ADOME, MPX-B
6RAD NO. 130 AAudio system
7MPX-B10 A
Headlights, front fog lights, parking
lights, windshield washer, horns,
power door lock system, power win-
dows, power seats, electric tilt and
telescopic steering column, meters
and gauges, smart access system with
push-button start, outside rear view
mirrors, air conditioning system
8DOME10 AInterior lights, meters and gauges,
front footwell lights
9CDS10 AElectric cooling fans

436
4-3. Do-it-yourself maintenance
IS F_U
10E/G-B60 AFR CTRL-B, ETCS, A/F, STR LOCK,
INJ2, TEL
11P/ I - B60 AEFI, F/PMP, INJ
12ABS 150 AVDIM
13RH J/B-B30 AFR DOOR RH, RR DOOR RH, AM2
14VVT40 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
15MAIN30 AH-LP R LWR, H-LP L LWR, headlight
low beams
16STARTER30 ASmart access system with push-button
start
17LH J/B-B30 AFR DOOR LH, RR DOOR LH,
SECURITY
18EPS80 AElectric power steering
19ALT180 A
LH J/B-AM, E/G-AM, HEATER,
FAN1, FAN2, DEFOG, RH J/B-AM,
ABS 2
20LH J/B-AM80 A
S/ROOF, FR P/SEAT LH, TV NO.1,
A/C, F/OPN, PSB, FR WIP,
H-LP LVL, LH-IG, ECU-IG LH,
PANEL, TAIL, MIR HTR, TV NO. 2,
FR S/HTR LH
21RH J/B-AM80 A
OBD, STOP SW, TI&TE, FR P/SEAT
RH, RAD NO. 3, ECU-IG RH,
RH-IG, FR S/HTR RH, ACC, CIG,
PWR OUTLET
22ABS230 AVDIM
23DEFOG50 ARear window defogger
FuseAmpereCircuit

437
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_U
24FA N 240 AElectric cooling fans
25FA N 140 AElectric cooling fans
26HEATER50 ACDS, air conditioning system
27E/G-AM60 AH-LP CLN, FR CTRL AM, DEICER
FuseAmpereCircuit