2013 TOYOTA 4RUNNER air condition

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4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
CAUTION
■Proper inflation is critical
to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions
may occur and result in an accident causing death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resu lting from overheated tires
●Poor sealing of the tire bead
●Wheel deformation and/or tire separation
●A greater possibility of tire damage from road hazards
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
Without the valve caps, dirt or mo isture could get into the valve and
cause air leakage, which could result in an accident. If the caps are lost,
replace them as soon as possible.

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4-3. Do-it-yourself maintenance
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Maintenance and care
4RUNNER_U
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
■ Removal method
Turn the engine switch (vehicles without a smart key sys-
tem) or “ENGINE START STOP” switch (vehicles with a
smart key system) off.
Open the glove box and
remove the cover.
Remove the filter cover.
Remove the filter.
The “UP” marks shown on
the filter should be pointing up.
STEP 1
CTH43AS143
STEP 2
CTH43AS144
STEP 3
CTH43AS145
STEP 4

556 4-3. Do-it-yourself maintenance
4RUNNER_U
■Checking interval
Replace the air conditioning filter according to the maintenance schedule. In
dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

564 4-3. Do-it-yourself maintenance
4RUNNER_U
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1PTC HTR NO.330 A
PTC heater
2DEF30 ARear window defogger
3DEICER 20 A
Windshield wiper de-icer
4AIR PMP HTR10 AAir pump heater, AI combina-
tion valve
5PTC HTR NO.230 A
PTC heater
6SUB BATT30 ATrailer sub battery
7PTC HTR NO.150 A
PTC heater
8MIR HTR10 AOutside rear view mirror defog-
gers
9TOWING TAIL30 A
Trailer tail light
10A/C COMP10 AAir conditioning system
11STOP10 A
Stop/tail lights
12IG220 AINJ, IGN, GAUGE fuses
13HORN10 AHorn(s)
14EFI 25 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
CTH43AS146

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4-3. Do-it-yourself maintenance
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Maintenance and care
4RUNNER_U
15A/F20 A
A/F sensor
16H-LP RH-HI10 ARight-hand headlight (high
beam)
17H-LP LH-HI10 ALeft-hand headlight (high
beam)
18HTR50 A
Air conditioning system
19400W INV 80 APower outlets
20ST30 A
Starter system
21H-LP HI20 AH-LP RH-HI, H-LP LH-HI fuses
22ALT-S7.5 A Charging system
23TURN&HAZ15 ATurn signal lights, emergency
flashers
24ETCS10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
25PRB30 A
Automatic running boards sys-
tem
26TOWING30 A
Trailer stop/turn lights
27SHORT PIN 
No circuit
28RAD NO.1 10 A Audio system
29AM27.5 A Starter system
30MAYDAY 7.5 A
MAYDAY
31AMP30 AAudio system
32ABS NO.150 AABS, VSC
33ABS NO.230 A
ABS, VSC
34AIR PMP50 AAIR PMP MTR
35DOME10 AInterior lights, vanity lights
36ECU-B10 AMultiplex communication sys-
tem, meter and gauge
37H-LP RH-LO10 ARight-hand headlight (low
beam)
38H-LP LH-LO10 A
Left-hand headlight (low beam)
39INJ10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
FuseAmpereCircuit

567
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
■
Driver’s side instrument panel
FuseAmpereCircuit
1TA I L10 A Stop/tail lights
2PA N E L7.5 A Instrument panel lights
3GAUGE7.5 A Meter and gauge
4IGN10 A Multiport fuel injection system/
sequential multiport fuel injec-
tion system, air bag system,
smart key system
5WASHER20 A Wiper and washer
6WIP30 A Wiper and washer
7S/ROOF 25 A Electric moon roof
8DOOR RR25 A Power windows
9DOOR D25 A Power windows
10DOOR BACK30 A
Multiplex communication sys-
tem
11DOOR P30 A Power windows
12P/SEAT FR 30 A Front passenger's power seat
13S/HTR FR 20 A Seat heater system
14ECU-IG NO.210 AAir conditioning system, multi-
port fuel injection system/
sequential multiport fuel injec-
tion system
15IG17.5 A
Turn signal lights, emergency
flashers
16ECU-IG NO.110 AVehicle stability control sys-
tem, tire pressure warning sys-
tem, steering sensor
17DOOR7.5 A Power windows

568 4-3. Do-it-yourself maintenance
4RUNNER_U
18DOOR RL25 A Power windows
19AM17.5 A Starter system
20A/C7.5 A Air conditioning system
21OBD7.5 A On-Board diagnosis
22FOG FR 15 A Fog lights
23D/L NO.225 AMultiplex communication sys-
tem
24P/SEAT FL30 A Front driver’s power seat
254WD 20 A Four wheel drive system
26KDSS 10 AKinetic dynamic suspension
system
27TOWING BKUP10 A Trailer back-up lights
28BKUP LP10 A Back-up lights
29ACC7.5 A Multiport fuel injection system/
sequential multiport fuel injec-
tion system
30P/OUTLET15 A Power outlets
FuseAmpereCircuit

657
6-1. Specifications
6
Vehicle specifications
4RUNNER_U
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can caus e heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressure Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressure The maximum cold inflated
pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended
inflation pressure Cold tire inflation pressure recommended by a
manufacturer.
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard
equipment, 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