LEXUS IS250 2016 Owners Manual

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4-3. Do-it-yourself maintenance
4

Maintenance and care
FuseAmpereCircuit
27GLW PLG250 APTC heater
28E/G-AM60 AHeadlight cleaners, front fog lights,
parking lights, air conditioning system
29LH J/B-AM80 A
S/ROOF, FR P/SEAT LH, TV NO.1,
A/C, FUEL/OPEN, PSB, FR WIP,
H-LP LVL, LH-IG, ECU-IG LH,
PANEL, TAIL, MIR HTR,
FR S/HTR LH

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4-3. Do-it-yourself maintenance
nEngine compartment (type B fuse box)
FuseAmpereCircuit
1SPARE30 ASpare fuse
2SPARE25 ASpare fuse
3SPARE10 ASpare fuse
4FR CTRL-B25 AHeadlight high beam, horn
5A/F15 AExhaust system
6ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
7ALT-S7. 5 ACharging system
8STR LOCK25 ASteering lock
9H-LP CLN30 AHeadlight cleaner
10A/C COMP7. 5 AAir conditioning system
11DEICER25 A
12FR CTRL-AM30 AFront fog lights, parking lights, wind-
shield washer
13IG210 AIgnition system

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Maintenance and care
14EFI NO.210 AFuel system, exhaust system
15H-LP R LWR15 AHeadlight low beam (right)
16H-LP L LWR15 AHeadlight low beam (left)
17F/ P M P25 AFuel system
18EFI25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
19INJ20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
20H-LP UPR15 AHeadlight high beams
21HORN10 AHorns
22WA S H E R20 AWindshield washer
23FR TAIL10 AParking lights
24FR FOG15 AFront fog lights
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
nDriver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r s e a t
2A/C7. 5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO.110 ADisplay
5FUEL OPEN10 AFuel filler door opener
6TV NO.27. 5 A
7PSB30 APre-collision seat belt
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights, parking
lights
10PA N E L7. 5 ASwitch illumination, air conditioning
system, display
11RR FOG7. 5 A
12ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, moon roof, tire inflation pres-
sure warning system
13FR S/HTR LH15 ASeat heaters and ventilators

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Maintenance and care
FuseAmpereCircuit
14RR DOOR LH20 APo w e r w i n d o w s
15FR DOOR LH20 APo w e r w i n d o w s
16SECURITY7. 5 ASmart access system with push-button
start
17H-LP LVL7. 5 AAFS
18LH-IG10 A
Charging system, headlight cleaner,
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights,
mirror heaters, sun shade, seat belts,
Intuitive parking assist, cruise control,
air conditioning system, PTC heater
19FR WIP30 AWindshield wipers

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4-3. Do-it-yourself maintenance
nPassenger’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 AStop lights
5TI & TE20 AElectric tilt and telescopic steering
column
6RAD NO.310 AAudio
7GAUGE7. 5 AMeter
8IGN10 ASRS airbag system, cruise control,
steering lock system, fuel system
9ACC7. 5 A
Lexus link system, clock, air condition-
ing system, audio, display, outside rear
view mirrors, smart access system
with push-button start
10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r o u t l e t
12RR DOOR RH20 APo w e r w i n d o w s

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Maintenance and care
FuseAmpereCircuit
13FR DOOR RH20 APower windows, outside rear view
mirrors
14AM27. 5 ASmart access system with push-button
start
15RH-IG7. 5 A
Seat belts, intuitive parking assist,
automatic transmission, seat heater
and ventilator
16FR S/HTR RH15 ASeat heaters and ventilators
17ECU-IG RH10 A
Power seats, smart access system with
push-button start, AWD system, out-
side rear view mirrors, VDIM, air con-
ditioning system, pre-collision seat
belt, electric tilt and telescopic steer-
ing, power windows, navigation sys-
tem
nAfter a fuse is replaced
lIf the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (→P. 3 6 3 )
lIf the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
nIf there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.

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4-3. Do-it-yourself maintenance
CAUTION
nTo prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
lNever use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
lAlways 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.
lDo not modify fuses or the fuse box.
NOTICE
nBefore replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

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Maintenance and care
Headlight aim
nRemoving the engine compartment cover
→P. 31 2
nVertical movement adjusting bolts
Adjustment bolt A
Adjustment bolt B
nBefore 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.
STEP1
STEP2
STEP3
STEP4

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4-3. Do-it-yourself maintenance
nAdjusting the headlight aim
Turn bolt A in either direction
using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns in mind.
Turn bolt B the same number of
turns and in the same direction
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