Page 422 of 609
401
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
NOTICE
If you remove the air cleaner
Driving with the air cleaner removed may cause excessive engine wear due
to dirt in the air. Also, a backfire could cause a fire in the engine compart-
ment.
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.
Page 423 of 609
402
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
Hood
CAUTION
Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.
Release the lock from the inside of the vehicle to open the hood.
Pull the hood release lever.
The hood will pop up
slightly.
Lift auxiliary catch lever and
lift the hood.
STEP1
STEP2
Page 440 of 609

419
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
CAUTION
Chemicals in the battery
A battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near
the battery:
Do not cause sparks by touching the battery terminals with tools.
Do not smoke or light a match near the battery.
Avoid contact with eyes, skin and clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near the battery.
Keep children away from the battery.
Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is not sufficient ventilation.
Emergency measures regarding electrolyte
If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the
clothing and follow the procedure above if necessary.
If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
Page 464 of 609
443
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
7MPX-B10 A
Headlights, front fog lights, front
position lights, license plate lights,
windshield washer, horn, power
door lock system, power windows,
power seats, electric tilt and tele-
scopic steering column, meter,
smart entry & start system, outside
rear view mirrors, air conditioning
system, multiplex communication
system
8DOME10 AInterior lights, meter, outer foot
lights
9CDS10 AElectric cooling fans
10E/G-B60 AFR CTRL-B, ETCS, A/F, STR
LOCK, EDU, ECD
11DIESEL GLW80 AEngine glow system
12ABS150 AVDIM
13RH J/B-B30 AFR DOOR RH, RR DOOR RH,
AM2
14MAIN30 AH-LP L LWR, H-LP R LWR
15STARTER30 ASmart entry & start system
16LH J/B-B30 AFR DOOR LH, RR DOOR LH,
SECURITY
17P/I-B60 AEFI, F/PMP, INJ
18EPS80 APower steering
FuseAmpereCircuit
Page 467 of 609
446
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
5A/F15 A
Multiport fuel injection system/
sequential multiport fuel injection
system
6ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection
system
7TEL10 A
8STR LOCK25 ASteering lock system
9H-LP CLN30 AHeadlight cleaner
10A/C COMP7.5 AAir conditioning system
11DEICER25 AWindshield wiper de-icer
12FR CTRL-AM30 AFR TAIL, FR FOG, WASHER
13IG210 AIgnition system
14EFI NO.210 A
Multiport fuel injection system/
sequential multiport fuel injection
system
15H-LP R LWR15 AHeadlight low beam (right)
16H-LP L LWR15 AHeadlight low beam (left)
17F/PMP25 AFuel system
18EFI25 A
Multiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.2
19INJ20 A
Multiport fuel injection system/
sequential multiport fuel injection
system
20H-LP UPR20 AHeadlight high beams
21HORN10 AHorns
FuseAmpereCircuit
Page 468 of 609
447
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
22WASHER20 AWindshield washer
23FR TAIL10 AFront position lights
24FR FOG15 AFront fog lights
25EDU20 AStarter system
26ECD25 A
Starter system, fuel system, multi-
plex communication system, ECD
NO.2
27ECD NO.210 A
Starter system, fuel system,
exhaust system,
multiport fuel
injection system/ sequential multi-
port fuel injection system
FuseAmpereCircuit
Page 469 of 609
448
4-3. Do-it-yourself maintenance
IS250/220d/200d_EELeft side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APower seat
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 ALexus parking assist monitor
7PSB30 APre-crash seat belt
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights,
manual headlight leveling system
10PANEL7.5 A
Switch illumination, air condition-
ing system, display, audio, power
heater
11RR FOG7.5 ARear fog lights
12ECU-IG LH10 A
Air conditioning system, cruise
control, power steering, rain sen-
sor, anti-glare inside rear view mir-
ror, shift lock system, moon roof,
VSC, windshield wiper, Lexus
parking assist-sensor
13FR S/HTR LH15 ASeat heaters and ventilators
14RR DOOR LH20 APower windows
Page 470 of 609
449
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
15FR DOOR LH20 APower windows, outside rear view
mirror
16SECURITY7.5 ASmart entry & start system
17H-LP LVL7.5 AAutomatic headlight leveling sys-
tem
18LH-IG10 A
Charging system, headlight
cleaner, rear window defogger,
electric cooling fans, emergency
flashers, turn signal lights, back-up
lights, stop lights, outside rear
view mirror defoggers, seat belts,
Lexus parking assist-sensor, cruise
control, PTC heater, rear sunshade,
exhaust system
19FR WIP30 AWindshield wipers
FuseAmpereCircuit