2003 TOYOTA 4RUNNER fuse

’03 4Runner_U (L/O 0305)
221
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
NOTICE
To prevent the fuse from being
blown, do not use the electricity
over the total vehicle capacity of 12
VDC/120W.
 To prevent the battery from being
discharged, do not use the power
outlets longer than necessary when
the engine is not running.
 Close the power outlet lids when
the power outlets are not in use.
Inserting a foreign object other than
the appropriate plug that fits the
outlet, or allowing any liquid into
the outlet may cause electrical fail-
ure or short circuits.
This power outlet is designed for use
as a power supply for electric ap-
pliances in the vehicle.
The key must be in the “ON” position for
the power outlet to be used.
The maximum capacity for this power out-
let is 115 VAC/100W. If you attempt to
use an appliance that requires more than
115 VAC or 100W, the protection circuit
will activate and cut the power supply.
The power supply will restart automatically
when you use an appliance that operates
within the 115 VAC/100W limits.To use the power outlet, push the main
switch on the instrument panel.
An indicator light will illuminate to indicate
that the power outlet is ready for use.
Push the main switch once again to turn
the power outlet off. When the power out-
let is not in use, make sure that the main
switch is turned off.
Power outlet (115 VAC)

’03 4Runner_U (L/O 0305)
315
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
DOITYOURSELF MAINTENANCE
Introduction
Engine compartment overview 316
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse locations 318
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . .
Doityourself service precautions 318
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts and tools 320
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . .
SECTION 7 1

’03 4Runner_U (L/O 0305)
316
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
1. Windshield and back window washer
fluid tank
2. Power steering fluid reservoir
3. Engine oil level dipstick
4. Engine coolant reservoir
5. Engine oil filler cap
6. Brake fluid reservoir
7. Fuse block
8. Battery
9. Condenser
10. Radiator
Engine compartment overview
 1GRFE engine

’03 4Runner_U (L/O 0305)
317
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
1. Windshield and back window washer
fluid tank
2. Power steering fluid reservoir
3. Engine coolant reservoir
4. Engine oil level dipstick
5. Engine oil filler cap
6. Brake fluid reservoir
7. Fuse block
8. Battery
9. Condenser
10. Radiator

2UZFE engine

’03 4Runner_U (L/O 0305)
318
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Spare
fuses
If you perform maintenance by yourself,
be sure to follow the correct procedure
given in this Section.
You should be aware that improper or in-
complete servicing may result in operating
problems.
Performing doityourself maintenance
during the warranty period may affect your
warranty coverage. Read the separate
Toyota Warranty statement for details and
suggestions.
This Section gives instructions only for
those items that are relatively easy for an
owner to perform. As explained in Section
6, there are still a number of items that
must be done by a qualified technician
with special tools.
For information on tools and parts for do
ityourself maintenance, see “Parts and
tools” on page 320 in this Section.
Utmost care should be taken when work-
ing on your vehicle to prevent accidental
injury. Here are a few precautions that
you should be especially careful to ob-
serve:
Fuse locations Doityourself service
precautions

’03 4Runner_U (L/O 0305)
321
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
CHECKING AND REPLACING FUSES
Parts (if replacement is necessary):
Fuse with same amperage rating as
original
ADDING WASHER FLUID
Parts:
Water
Washer fluid containing antifreeze (for
winter use)
Tools:
Funnel
REPLACING LIGHT BULBS
Parts:
Bulb with same number and wattage
rating as original (See charts in “Re-
placing light bulbs” on page 344 in
Section 73.)
Tools:
Screwdriver

’03 4Runner_U (L/O 0305)
339
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
DOITYOURSELF MAINTENANCE
Electrical components
Checking battery condition 340
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 341
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing fuses 342
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 343
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Replacing light bulbs 344
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
SECTION 7 3

’03 4Runner_U (L/O 0305)
342
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Ty p e A
Ty p e B
Ty p e CGood Blown
Good
Good
Blown
Blown
If the headlights or other electrical
components do not work, check the
fuses. If any of the fuses are blown,
they must be replaced.
See “Fuse locations” on page 318 in Sec-
tion 71 for locations of the fuses.
Turn the ignition switch and inoperative
component off. Pull a suspected fuse
straight out and check it.
Determine which fuse may be causing the
problem. The lid of the fuse box shows
the name of the circuit for each fuse. See
page 356 in Section 8 of this manual for
the functions controlled by each circuit. Type A fuses can be pulled out by using
the pullout tool. The location of the pull
out tool is shown in the illustration.
If you are not sure whether the fuse has
blown, try replacing the suspected fuse
with one that you know is good.
If the fuse has blown, push a new fuse
into the clip.
Only install a fuse with the amperage rat-
ing designated on the fuse box lid.
If you do not have a spare fuse, in an
emergency you can pull out the “PWR
OUTLET” or “HEATER NO.2” fuse, which
may be dispensable for normal driving,
and use it if its amperage rating is the
same.
If you cannot use one of the same amper-
age, use one that is lower, but as close
as possible to the rating. If the amperage
is lower than that specified, the fuse
might blow out again but this does not
indicate anything wrong. Be sure to get
the correct fuse as soon as possible and
return the substitute to its original clip.
It is a good idea to purchase a set of
spare fuses and keep them in your ve-
hicle for emergencies.
Checking and replacing fuses