2009 TOYOTA 4RUNNER fuel

367
4-2. Maintenance
4
Maintenance and care
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system moni-
tors the operation of th e emission control system.
■If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere
in the emission control system. Your vehicle may not pass the I/
M test and may need to be repaired. Contact your Toyota dealer
to service the vehicle.
■ Your vehicle may not pass the I/M test:
●When the battery is disconnected or discharged
Readiness codes that are se t during ordinary driving are
erased.
Also, depending on your driving habits, the readiness codes
may not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on as a temporary mal-
function and your vehicle may not pass the I/M test.
■ When the malfunction indicator lamp goes off after several
driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Toyota dealer to prepare the vehicle for re-testing.

370 4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
● Take care because brake fluid can harm your hands or eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience discomfort, see a doctor.
■ When working near the cooling fan or radiator grille
Be sure the engine switch is off.
With the engine switch on, the cooling fan may automatically start to run if
the air conditioning is on and/or the coolant temperature is high.
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Make sure to check the oil type and prepare the items needed before
adding oil.
Remove the oil filler cap, turning it counterclockwise.
Add engine oil slowly.
Checking the dipstick.
Reinstall the filler cap, turning it clockwise.
The approximate quantity of oil needed to raise the level between low and
full on the dipstick is indicated as follows:
1.6 qt. (1.5 L, 1.3 lmp. qt.)
■ Recommended viscosity
SAE 5W-30 is the best choice for
good fuel economy, and good
starting in cold weather.
*: If SAE 5W-30 oil is not avail-able, SAE 10W-30 oil may be
used. However, it should be
replaced with SAE 5W-30 at
the next oil change.
■How to read oil container labels
The ILSAC (International Lubricant Standardization and Approval
Committee) Certification Mark is added to some oil containers to
help you select the oil you should use.
Oil grade ILSAC multigrade engine oil
ItemsClean funnel
Outside temperature

396 4-3. Do-it-yourself maintenance
■Tire inflation pressure check interval
You should check tire pressure every two weeks, or at least once a
month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure ma y result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent re filling, have it checked by your Toyota dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours and has not been
driven for more than 1 mile or 1.5 km, you will get an accurate cold
tire inflation pressure reading.
●Always use a tire pressure gauge.
The appearance of the tire can be mi sleading. In addition, tire infla-
tion pressures that are even just a few pounds off can degrade ride
and handling.
If the tire inflation pressure is not within the recommended
levels, adjust inflate the tire.
If you add too much air, pres s the center of the valve to
lower.
After completing the tire inflation pressure measurement
and adjustment, apply soapy water to the valve and check
for leakage.
Reinstall the tire valve cap.

407
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1 SPARE 10 A Spare fuse
2 SPARE 15 A Spare fuse
3 STOP 10 A Stop/tail lights, high mounted stop-
light, shift lock control system, anti-
lock brake system, traction control
system (2WD models), active trac-
tion control system (4WD models),
vehicle stability control system,
rear height control air suspension,
multiport fuel injection system/
sequential multiport fuel injection
system, trailer brake controller,
trailer lights (tail lights)
4 AC 115V INV 15 A AC inverter
5 FR FOG 15 A Front fog lights
6 OBD 7.5 A On-board diagnosis system
7 HEAD (LO RH) 10 A Right-hand headlight (low beam)
8 HEAD (LO LH) 10 A Left-hand headlight (low beam)

408 4-3. Do-it-yourself maintenance
9 HEAD (HI RH) 10 A Right-hand headlight (high beam)
10 HEAD (HI LH) 10 A Left-hand headlight (high beam)
11 EFI NO.2 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
12 HEATER NO.2 7.5 A Air conditioning system
13 AIRSUS NO.2 10 A Rear height control air suspension
14 SEAT HEATER 25 A Seat heaters
15 DEFOG 30 A Back window defogger, multiport
fuel injection system/sequential
multiport fuel infection system
16 MIR HEATER 10 A Outside rear view mirror heater
17 DOME 10 A Interior light, personal lights, wire-
less remote control system, door
courtesy lights, gauge and meter,
vanity lights, instrument panel
lights, running board lights, multi-
plex communication system
18 RADIO NO.1 20 A Audio system, navigation system,
rear seat entertainment system
19 ECU-B 10 A Anti-lock brake system, traction
control system (2WD models),
active traction control system (4WD
models), vehicle stability control
system, air conditioning system,
multiplex communication system,
theft deterrent system, driving posi-
tion memory system, front passen-
ger occupant classification system
20 ALT-S 7.5 A Charging system
21 HORN 10 A Horns
22 A/F HEATER 15 A A/F sensor
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
23 TRN-HAZ
15 ATurn signal lights, emergency
flashers
24 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
25 EFI 20 AMultiport fuel injection system/
sequential multiport fuel injection
system
26 DR/LCK 20 A Power door lock system
27 TOWING 30 A Towing converter
28 RADIO NO.2 20 A Audio system
29 A/PUMP 50 AMultiport fuel injection system/
sequential multiport fuel injection
system
30 AIRSUS 50 A Rear height control air suspension
31 AM1 50 AACC, CIG, IG1, ECU-IG, FR WIP-
WSH, RR-WSH, 4WD, and STA
fuses
32 TOWING BRK 30 A Trailer brake controller
33 J/B 50 APWR OUTLET, D P/SEAT, P P/
SEAT, POWER, TAIL, SECU/
HORN fuses
34 BATT CHG 30 A Trailer sub battery
35 TOWING 40 A Trailer lights (tail lights)
36 ABS MTR 40 AAnti-lock brake system, traction
control system (2WD models),
active traction control system (4WD
models), vehicle stability control
system
37 AM2 30 AStarter system, IGN, GAUGE,
STA NO.2, SRS fuses
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 IGN 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, anti-lock brake system,
traction control system (2WD mod-
els), active traction control system
(4WD models), vehicle stability
control system, meter and gauge,
front passenger occupant classifi-
cation system
2 SRS 10 A SRS airbag system
3 GAUGE 7.5 A Meter and gauge
4 STA NO.2 7.5 A Starting system, multiport fuel
injection system/sequential multi-
port fuel injection system
5 FR WIP-WSH 30 A Windshield wipers and washer
6 4WD 20 A 4WD control system
7 D P/SEAT 30 A Driver’s power seat
8 P P/SEAT 30 A Front passenger’s power seat
9 PWR OUTLET 15 A Power outlets