air condition Lexus IS220d 2012 Workshop Manual

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

448
4-3. Do-it-yourself maintenance
IS250/220d/200d_EELeft 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

451
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
9ACC7.5 A
Clock, audio, navigation system,
outside rear view mirrors, smart
entry & start system, Lexus park-
ing assist monitor, glove box light,
console box light, multiplex com-
munication system, display
10CIG15 ACigarette lighter
11PWR OUTLET15 APower outlet
12RR DOOR RH20 APower windows
13FR DOOR RH20 A
Power windows, outside rear view
mirrors, multiplex communication
system
14AM27.5 ASmart entry & start system
15RH-IG7.5 A
Seat belts, automatic transmis-
sion, seat heaters and ventilators,
windshield wiper de-icer, power
heater
16FR S/HTR RH15 ASeat heaters and ventilators
17ECU-IG RH10 A
Power seat, headlights, front fog
lights, front position lights, license
plate lights, windshield washer,
outside rear view mirror, VDIM,
air conditioning system, pre-crash
seat belt, electric tilt and telescopic
steering column, power windows,
navigation system, vehicle stabil-
ity control, multiplex communica-
tion system, smart entry & start
system
FuseAmpereCircuit

5
459
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission.
Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional, before towing.
The engine is running, but the vehicle will not move.
The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may
be temporarily towed using a cable or chain secured to the emer-
gency towing eyelet(s). This should only be attempted on hard,
surfaced roads for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
If towing is necessary, we recommend having your vehicle towed by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, such as a commercial towing service, using a
lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
If towing from the rear, the vehicle's front wheels and axles must be in
good condition. (P. 463)
If they are damaged, use a towing dolly or flat bed truck.

5
465
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional, as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
Engine coolant temperature gauge needle continually points
higher than normal
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the engine
Operational symptoms
Engine missing, stumbling or running rough
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle pulls heavily to one side when driving on a level
road

5
513
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
CAUTION
When fixing the flat tire
Stop your vehicle in a safe and flat area.
Connect the valve and hose securely with the tire installed on the vehicle.
If the hose is not properly connected to the valve, air leakage may occur or
sealant may be sprayed out.
If the hose comes off the valve while inflating the tire, there is a risk that
the hose will move abruptly due to air pressure.
After inflation of the tire has been completed, the sealant may splatter
when the hose is disconnected or some air is let out of the tire.
Keep back from the tire while it is being repaired, as there is a chance of it
bursting while the repair operation is being performed. If you notice any
cracks or deformation of the tire, turn off the compressor switch and stop
the repair operation immediately.
The kit may overheat if operated for a long period of time. Do not operate
the compressor continuously for more than 10 minutes.
Parts of the kit become hot during operation. Be careful handling the kit
during and after operation.
Do not attach the vehicle speed warning sticker to an area other than the
one indicated. If the sticker is attached to an area where an SRS airbag is
located, such as the pad of the steering wheel, it may prevent the SRS air-
bag from operating properly.
Driving to spread the liquid sealant evenly
Drive the vehicle carefully at a low speed. Be especially careful when
turning and cornering.
If the vehicle does not drive straight or you feel a pull through the steering
wheel, stop the vehicle and check the following:
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If tire inflation pressure is 130 kPa (1.3 kgf/
cm
2 or bar, 19 psi) or below, this may indicate severe tire damage.

528
5-2. Steps to take in an emergency
IS250/220d/200d_EE
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic
air conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating:
Stop the engine and call any authorized Lexus dealer
or repairer, or another duly qualified and equipped pro-
fessional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core
(radiator) for any leaks.
If the engine compartment
cover needs to be removed:
STEP1
STEP2
STEP3
STEP4

Index
561
Abbreviation list ....................... 562
Alphabetical index.................... 563
What to do if... ......................... 574
For vehicles with a navigation system, refer to the
“Navigation System Owner’s Manual” for informa-
tion regarding the equipment listed below.
• Navigation system
• Audio/video system
• Air conditioning
• Rear window and outside rear view mirror defogging
• Climate control
• Lexus parking assist-sensor

563
IS250/220d/200d_EE
Alphabetical index
Alphabetical index
A/C* ..........................................254
ABS ...........................................224
Air conditioning filter ...............430
Air conditioning system
Air conditioning filter ...........430
Automatic air conditioning
system*...............................254
Airbags
Airbag manual ON/OFF
system.................................140
Airbag operating conditions .112
Airbag precautions for your
child....................................116
Airbag warning light ............468
Curtain shield airbag operating
conditions ...........................112
Curtain shield airbag
precautions .........................116
General airbag precautions ...116
Locations of airbags .............110
Modification and disposal of
airbags ................................120
Proper driving posture ..108, 116
Side airbag operating
conditions ...........................112
Side airbag precautions.........116
SRS airbags ..........................110
Alarm.........................................102
Antenna* ...................................272
Anti-lock brake system .............224Armrest ..................................... 377
Ashtrays .................................... 368
Audio input* ............................. 306
Audio system*
Antenna................................ 272
Audio input .......................... 306
AUX port ............................. 306
Bluetooth
® audio ................. 308
CD player/changer ............... 273
iPod ...................................... 288
MP3/WMA disc................... 280
Optimal use .......................... 304
Portable music player .......... 306
Radio.................................... 269
Steering wheel audio switch 307
USB memory ....................... 296
USB port .............................. 296
Automatic air conditioning
system* .................................. 254
Automatic headlight leveling
system .................................... 189
Automatic light control system 186
Automatic transmission
Automatic transmission ....... 161
If the shift lever cannot be
shifted from P .................... 517
S mode ................................. 165
AUX adapter*........................... 306
Auxiliary box............................ 361
A
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.