2003 TOYOTA TUNDRA fuse box location

’03 TUNDRA_U (L/O 0307)
298
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
During recharging, the battery is pro-
ducing hydrogen gas.
Therefore, before recharging:
1. If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
2. Be sure the power switch on the re- charger is off when connecting the
charger cables to the battery and when
disconnecting them.
CAUTION
Always charge the battery in an un-
confined area. Do not charge the
battery in a garage or closed room
where there is not sufficient ventila-
tion.
Only do a slow charge (5 A or
less). Charging at a quicker rate is
dangerous. The battery may ex-
plode, causing personal injuries.
NOTICE
Never recharge the battery while the
engine is running. Also, be sure all
accessories are turned off.
Ty p e A
Good Blown
Ty p e B
Ty p e C Good Blown
Good 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” in Section 7
−1 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
Section 8 of this manual for the functions
controlled by each circuit.
Battery recharging precautions Checking and replacing fuses

’03 TUNDRA_U (L/O 0307)
299
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Type A fuses can be pulled out by the
pull−out 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 “DOME”
or “HTR” fuse, which may be dispensable
for normal driving, and use it if its amper-
age 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. If the new fuse immediately blows out,
there is a problem with the electrical sys-
tem. Have your Toyota dealer correct it as
soon as possible.
CAUTION
Never use a fuse with a higher am-
perage rating, or any other object, in
place of a fuse. This may cause ex-
tensive damage and possibly a fire.
If any washer does not work or low
windshield washer fluid level warning
light comes on, the washer tank may be
empty. Add washer fluid.
You may use plain water as washer fluid.
However, in cold areas where tempera-
tures range below freezing point, use
washer fluid containing antifreeze. This
product is available at your Toyota dealer
and most auto parts stores. Follow the
manufacturer’s directions for how much to
mix with water.
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-
age your vehicle’s paint.
Adding washer fluid

’03 TUNDRA_U (L/O 0307)
3
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Removing wheel ornament 243
. . . . . . . . . .
Wheel block 243
. . . . . . . . . . . . . . . . . . . . . . .
Wheel nuts 248
. . . . . . . . . . . . . . . . . . . . . . . .
Floor mat 182
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid level
Brake 284
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power steering 285
. . . . . . . . . . . . . . . . . . . . .
Washer fluid 299
. . . . . . . . . . . . . . . . . . . . . . .
Fog light switch, Front 94
. . . . . . . . . . . . . . . . .
Foreign countries, Operation in 189 . . . . . . . .
Four −wheel drive
Operating the four −wheel drive
system 118
. . . . . . . . . . . . . . . . . . . . . . . . . .
Four −wheel drive system warning
buzzer 104
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front door locks 12
. . . . . . . . . . . . . . . . . . . . . .
Front fog light switch 94
. . . . . . . . . . . . . . . . . .
Front passenger ’s seat 34
. . . . . . . . . . . . . . . .
Front passenger ’s seat belt reminder
light 104
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front seat
Rear seat entry 34
. . . . . . . . . . . . . . . . . . . . .
Front seats 31,32,33
. . . . . . . . . . . . . . . . . . . . .
Fuel
Fuel economy 230
. . . . . . . . . . . . . . . . . . . . .
Fuel pump shut off system 189
. . . . . . . . . .
Gauge 100
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation in foreign countries 189 . . . . . . .
Tank cap 26
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel information 187
. . . . . . . . . . . . . . . . . . . . .
Fuel pump shut off system 189
. . . . . . . . . . . .
Fuse
Fuse box 298
. . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse locations 274
. . . . . . . . . . . . . . . . . . . . . . . G
Garage door opener box 168
. . . . . . . . . . . . . .
Gauge
Engine coolant temperature 100
. . . . . . . . .
Engine oil pressure 101
. . . . . . . . . . . . . . . . .
Fuel 100
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glove box 167
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Good driving practice 113,117
. . . . . . . . . . . . .
H
Hazard switch 93
. . . . . . . . . . . . . . . . . . . . . . . .
Head restraints 37
. . . . . . . . . . . . . . . . . . . . . . .
Headlight switch 92
. . . . . . . . . . . . . . . . . . . . . .
High speed operation
During break −in 187
. . . . . . . . . . . . . . . . . . . .
Hood release, Engine 23
. . . . . . . . . . . . . . . . . .
How to start the engine 214
. . . . . . . . . . . . . . .
I
I/M test 270
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification
Engine 198
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire 201
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle 197
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition switch 112
. . . . . . . . . . . . . . . . . . . . . . .
Ignition switch light 95
. . . . . . . . . . . . . . . . . . . .
Indicator symbols 8
. . . . . . . . . . . . . . . . . . . . . .
Instrument panel
Ashtray 166
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness control 94
. . . . . . . . . . . . . . . . . . .
Cigarette lighter 166
. . . . . . . . . . . . . . . . . . . .
Clock 166
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine oil pressure gauge
101
. . . . . . . . . . .
Fuel gauge 100
. . . . . . . . . . . . . . . . . . . . . . . .
Indicator symbols 8
. . . . . . . . . . . . . . . . . . . .
Odometer 103
. . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 102
. . . . . . . . . . . . . . . . . . . . . . . .
Trip meter 103
. . . . . . . . . . . . . . . . . . . . . . . . .
Instrument panel light control 94
. . . . . . . . . . .
Instrument panel overview 2,6
. . . . . . . . . . . .
J
Jack
Location 241,242 . . . . . . . . . . . . . . . . . . . . . .
Jump starting 235 . . . . . . . . . . . . . . . . . . . . . . . .
K
Key reminder buzzer 104
. . . . . . . . . . . . . . . . .
Keys 12,257
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
L
Light bulbs
Back −up lights 303,304 . . . . . . . . . . . . . . . . .
Cargo lamps 306 . . . . . . . . . . . . . . . . . . . . . . .
Front fog lights 302 . . . . . . . . . . . . . . . . . . . . .
Front side marker lights 302 . . . . . . . . . . . . .
Front turn signal lights 302 . . . . . . . . . . . . . .
Headlights 301 . . . . . . . . . . . . . . . . . . . . . . . .
High mounted stoplight 306 . . . . . . . . . . . . .
Licence plate lights 305 . . . . . . . . . . . . . . . . .
Parking lights 302 . . . . . . . . . . . . . . . . . . . . . .
Rear turn signal lights 303,304 . . . . . . . . . .