engine Lexus IS220d 2012 Owner's Manual

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4-3. Do-it-yourself maintenance
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Maintenance and care
IS250/220d/200d_EE
Radiator, condenser and intercooler
Check the radiator, condenser and intercooler and clear any foreign
objects.
If any of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle checked by any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
Battery
Check the battery as follows.
The meanings of each caution symbol on the top of the battery are
as follows:
CAUTION
When the engine is hot
Do not touch the radiator, condenser or intercooler as they may be hot and
cause serious injuries, such as burns.
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating
instructions
Keep away from chil-
drenExplosive gas

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Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, before recharging:
If recharging with the battery installed on the vehicle, be sure to discon-
nect the ground cable.
Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the battery.
After recharging/reconnecting the battery
In some cases, the engine may not start. Follow the procedure below to ini-
tialize the system.
Shift the shift lever to P (automatic transmission) or depress the
brake pedal with the shift lever in N (manual transmission), and
turn the “ENGINE START STOP” switch OFF.
Open and close any of the doors.
Start the engine. (If the engine does not start first time, repeat the
procedure.)
If the engine will not start even after multiple attempts at the above method,
contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
STEP1
STEP2
STEP3

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Washer fluid
If any washer does not work or
the warning message appears
on the multi-information dis-
play, the washer tank may be
empty. Add washer fluid.
NOTICE
When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corro-
sion.
CAUTION
When adding washer fluid
Do not add washer fluid when the engine is hot or running, as washer fluid
contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

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The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
Removal method
Set the air conditioning system to recirculated mode.
(P. 254)
The air conditioning filter case cannot be removed with the
system in the outside air mode.
Turn the “ENGINE START STOP” switch OFF.
Open the glove box. Lift and
remove the partition.
Remove the filter cover.
Remove the filter case.
STEP1
STEP2
STEP3
STEP4
STEP5

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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. 407)
Open the fuse box cover.
Engine compartment (type A fuse box: Left-hand drive vehi-
cles)
Push the tabs in and lift the
lid off.
Engine compartment (type A fuse box: Right-hand drive vehi-
cles)
Push the tabs in and lift the
lid off.STEP1
STEP2
STEP3

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Engine compartment (type B fuse box)
Push the tabs in and lift the
lid off.
Driver’s side instrument panel
Remove the lid.
Passenger’s side instrument panel
Remove the lid.
After a system failure, see “Fuse layout and amperage
ratings” (P. 442) for details about which fuse to check.
STEP4

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Removing the front controller (engine compartment: type B fuse
box)
Lift the lid off while pushing
the tabs on either side.
Type C
Normal fuse
Blown fuse
Contact any authorized
Lexus dealer or repairer, or
another duly qualified and
equipped professional.
Type D
Normal fuse
Blown fuse
Contact any authorized
Lexus dealer or repairer, or
another duly qualified and
equipped professional.

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Fuse layout and amperage ratings
Engine compartment (type A fuse box)
Left-hand drive vehicles
Right-hand drive vehicles
FuseAmpereCircuit
1PWR HTR25 APower heater
2TURN-HAZ15 AEmergency flashers, turn signals
3IG2 MAIN20 AIG2, IGN, GAUGE
4RAD NO.230 AAudio
5D/C CUT20 ADOME, MPX-B
6RAD NO.130 A

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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

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IS250/220d/200d_EEEngine compartment (type B fuse box)
IS250
IS220d and IS200d
FuseAmpereCircuit
1SPARE30 ASpare fuse
2SPARE25 ASpare fuse
3SPARE10 ASpare fuse
4FR CTRL-B25 AH-LP UPR, HORN