air conditioning LEXUS IS250 2016 User Guide

217
3-1. Using the air conditioning system and defogger
3

Interior features
nAutomatic mode for air intake control (IS350 only)
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
nMicro dust and pollen filter
lIn order to prevent the window from fogging up when the outside air is cold, the
following may occur.

218
3-1. Using the air conditioning system and defogger
Rear window and outside re ar view mirror defoggers
nThe defogger can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
nWhen the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirror, as it can become very hot
and burn you.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
On/off
The defoggers will automatically
turn off after approximately 15
minutes.

306
4-3. Do-it-yourself maintenance
CAUTION
nWhen working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (→P. 3 1 9 )
nSafety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
nIf you remove the air cleaner
Driving with the air filter removed may cause excessive engine wear due to dirt in
the air. Also a backfire could cause a fire in the engine compartment.

342
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
nRemoval method
Set the air conditioning system to recirculated mode.
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

343
4-3. Do-it-yourself maintenance
4

Maintenance and care
nChecking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the “Owner's
Manual Supplement/Scheduled Maintenance”.)
nIf air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
nCleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at
72 psi (500 kPa, 5.0 kgf/cm2
or bar).
If it is not available, have the
filter cleaned by your Lexus
dealer.
nReplacement method
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “↑UP” marks shown on the
filter and the filter case should
be pointing up.

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4-3. Do-it-yourself maintenance
NOTICE
nTo prevent damage to the system
lWhen using the air conditioning system, make sure that a filter is always installed.
lWhen cleaning the filter, do not clean the filter with water.

351
4-3. Do-it-yourself maintenance
4

Maintenance and care
Fuse layout and amperage ratings
nEngine compartment (type A fuse box)
FuseAmpereCircuit
1PWR HTR25 A
2TURN-HAZ15 AEmergency flashers, turn signals
3IG2 MAIN20 AIG2, IGN, GAUGE
4RAD NO.230 AAudio
5D/C CUT20 ADOME, MPX-B
6RAD NO.130 AAudio
7MPX-B10 A
Headlights, front fog lights, parking
lights, license plate lights, windshield
washer, horn, power door lock system,
power windows, power seats, electric
tilt and telescopic steering column,
meter, smart access system with push-
button start, outside rear view mirrors,
air conditioning system, security sys-
tem
8DOME10 AInterior lights, meter
9CDS10 AElectric cooling fans

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4-3. Do-it-yourself maintenance
FuseAmpereCircuit
10E/G-B60 AFR CTRL-B, ETCS, ALT-S, steering
lock system, exhaust system
11DIESEL GLW80 A
12ABS150 AVDIM
13RH J/B-B30 APower door lock system, smart access
system with push-button start
14MAIN30 AHeadlight low beams
15STARTER30 ASmart access system with push-button
start
16LH J/B-B30 APower door lock system, SECURITY
17P/I-B60 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
18EPS80 APower steering
19ALT150 A
LH J/B-AM, E/G-AM, GLW PLG2,
H EAT E R , FA N 1 , FA N 2 , D E F O G,
ABS2, RH J/B-AM, GLW PLG1,
LH J/B-B, RH J/B-B
20GLW PLG150 APTC heater
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
24FA N 240 AElectric cooling fans
25FA N 140 AElectric cooling fans
26HEATER50 AAir conditioning system

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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

354
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