2011 Lexus IS F air conditioning

423
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings■ Engine compartment (type A)
FuseAmpereCircuit
1ALT-S7. 5 ACharging system
2TURN-HAZ15 AEmergency flashers, turn signals
3IG2 MAIN20 AIG2, IGN, GAUGE
4RAD NO. 230 AAudio system
5D/C CUT20 ADOME, MPX-B
6RAD NO. 130 AAudio system
7MPX-B10 A
Headlights, front fog lights, parking
lights, windshield washer, horns,
power door lock system, power win-
dows, power seats, electric tilt and
telescopic steering column, meters
and gauges, smart access system with
push-button start, outside rear view
mirrors, air conditioning system
8DOME10 AInterior lights, meters and gauges,
front footwell lights
9CDS10 AElectric cooling fans

425
4-3. Do-it-yourself maintenance
4
Maintenance and care
24FA N 240 AElectric cooling fans
25FA N 140 AElectric cooling fans
26HEATER50 ACDS, air conditioning system
27E/G-AM60 AH-LP CLN, FR CTRL AM, DEICER
FuseAmpereCircuit

428
4-3. Do-it-yourself maintenance
■Driver’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, rear side
marker lights
10PA N E L7. 5 A
Switch illumination, air conditioning
system, display, safety connect, ciga-
rette lighter illumination, shift lever
light, instrument panel lights
11RR FOG7. 5 A
12ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, electric power steering, shift lock
system, moon roof, tire inflation pres-
sure warning system

429
4-3. Do-it-yourself maintenance
4
Maintenance and care
13FR S/HTR LH15 ASeat heaters
14RR DOOR LH20 APo w e r w i n d o w s
15FR DOOR LH20 APower windows, outside rear view
mirror (left)
16SECURITY7. 5 ASmart access system with push-button
start
17H-LP LVL7. 5 AAutomatic headlight leveling system
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,
outside rear view mirror defoggers,
seat belts, intuitive parking assist, air
conditioning system
19FR WIP30 AWindshield wipers
FuseAmpereCircuit

431
4-3. Do-it-yourself maintenance
4
Maintenance and care
9ACC7. 5 A
Clock, air conditioning system, audio
system, navigation system, display,
outside rear view mirrors, smart
access system with push-button start,
glove box light, console box light,
safety connect
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
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 heaters,
windshield wiper de-icer
16FR S/HTR RH15 ASeat heaters
17ECU-IG RH10 A
Power seats, smart access system with
push-button start, outside rear view
mirrors, VDIM, air conditioning sys-
tem, pre-collision seat belt, electric tilt
and telescopic steering, power win-
dows, navigation system, headlights,
front fog lights, parking lights, license
plate lights, windshield washer
FuseAmpereCircuit

5
When trouble arises
449
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temper ature 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
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor

5
When trouble arises
495
5-2. Steps to take in an emergency
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 sub-
sides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover (front). ( P. 385)
Check to see if the cool ing 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 immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.STEP1
STEP2
STEP3
STEP4
STEP5

522
6-1. Specifications
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Tire related termMeaning