2012 TOYOTA TUNDRA fuse

585
4-3. Do-it-yourself maintenance
4
Maintenance and care
14 ECU-IG No.1 7.5 A
Anti-lock brake system, vehicle sta-
bility control system, multiplex com-
munication system, intuitive
parking assist system, power front
driver’s seat, power tilt and power
telescopic, shift lock, tire pressure
warning system, accessory meter,
trailer towing, power outlet, electric
moon roof
15 LH-IG 7.5 A Back-up lights, charging system,
gauges and meters, turn signal
lights, air conditioning system, seat
heaters, back window defogger
16 4WD 20 A Four-wheel drive control system
17 WSH 20 A Window washer
18 WIPER 30 A Wiper and washer
19 ECU-IG No.2 7.5 A Multiplex communication system,
power steering
20 TAIL 15 A Tail lights, trailer lights (tail lights),
parking lights, outer foot lights
21 A/C IG 10 A Air conditioning system
22 TOW BK/UP 7.5 A Trailer lights
23 SEAT-HTR 20 A Seat heaters or heater and venti-
lated seats
24 PANEL 7.5 A Instrument panel lights, glove box
light, accessory meter, audio sys-
tem, rear view monitor, navigation
system, rear seat entertainment
system, gauges and meters, air
conditioning system
FuseAmpereCircuit

586 4-3. Do-it-yourself maintenance
25 ACC7.5 AAccessory meter, audio system,
rear seat entertainment system,
rear view monitor, navigation sys-
tem, back-up lights, trailer lights
(back-up lights), multiplex commu-
nication system, power outlet, out-
side rear view mirror
26 BK/UP LP 10 A Back-up light, gauges and meters
27 POWER No.1 30 A Power windows, power back win-
dow
■ After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. ( P. 588)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any
other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
● Do not modify the fuse or the fuse box.
FuseAmpereCircuit

587
4-3. Do-it-yourself maintenance
4
Maintenance and care
NOTICE
■
Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toy-
ota dealer as soon as possible.

699
6-2. Customization
6
Vehicle specifications
Items to initialize
ItemWhen to initializeReference
Moon roof
• After reconnecting or changing the battery
• After changing a fuse
P. 105
Maintenance dataAfter the maintenance is per-
formedP. 533
Tire pressure warning sys-
tem
• When rotating the tires on vehi- cles differing with front and rear
tire inflation pressures.
• When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
• When changing the tire size.
P. 558
The following items must be initia lized for normal system operation
in cases such as after the battery is reconnected, or maintenance is
performed on the vehicle.

732 Alphabetical index
Condenser ................................ 550
Console box ............................. 465
Cooling systemEngine overheating ............... 651
CRS ........................................... 140
Cruise control........................... 223
Cup holders .............................. 478
Curtain shield airbags ............. 122
Customizable features..... 203, 696
Daytime running light
system .................................... 213
Deck hooks ............................... 510
Defogger
Back window ......................... 317
Side mirrors ................... 315, 317
Dimensions............................... 658
Dinghy towing .......................... 294
Display Trip information ..................... 200
Warning message ................. 619
Do-it-yourself main tenance..... 538
Doors Door glasses ...........................96
Door lock ...........................46, 49
Open door warning........611, 620
Side doors ...............................49
Side mirrors .............................91
Driver’s seat belt reminder buzzer ..................................... 611
Driver’s seat belt
reminder light......................... 611
Driving Break-in tips .......................... 169
Correct posture ..................... 120
Driving assist systems........... 249
Procedures ............................ 168
Winter driving tips.................. 267
Driving position memory...........70
DVD player ................................ 399 Emergency flashers................. 600
Emergency flashers switch .... 600
Emergency, in case of
Blown fuse ............................ 577
If the engine will not start ...... 641
If the shift lever cannot be shifted ................................. 643
If the vehicle has
discharged battery .............. 647
If the warning buzzer sounds ................................ 609
If the warning light turns on........................................ 609
If the warning message
is displayed ......................... 619
If you have a flat tire ............. 623
If you lose your keys ............. 646
If you think something is wrong .............................. 607
If your vehicle becomes
stuck ................................... 654
If your vehicle has to be stopped in an emergency ... 655
If your vehicle needs to be towed ............................. 601
If your vehicle overheats ....... 651
Engine Compartment ........................ 543
Engine switch ........................ 178
Exhaust gas .......................... 174
Hood ..................................... 542
How to start the engine ................................. 178
Identification number............. 668
If the engine will not start ...... 641
Ignition switch ...................... 178
Immobilizer system ............... 115
Overheating .......................... 651
Warning light ......................... 610
Engine coolant Capacity ................................ 673
Checking ............................... 549
D
E

733
Alphabetical index
Preparing and checking
before winter ...................... 267
Engine coolan t temperature
gauge ..................................... 189
Engine immobilizer system .... 115
Engine oil
Capacity ............................... 671
Checking .............................. 545
Preparing and checking before winter ...................... 267
Warning light ........................ 609
Engine switch .......................... 178
Event data recorder .................. 38
FFV ................................... 110, 681
Flex-fuel ........................... 110, 681
Flexible fuel vehicle ........ 110, 681
Floor mat .................................. 508
Fluid Brake .................................... 550
Washer ................................. 555
Fog lights
Replacing light bulbs ............ 593
Switch ................................... 215
Wattage ................................ 680
Four-wheel drive system ........ 242
Front fog lights Replacing light bulbs ............ 593
Switch ................................... 215
Wattage ................................ 680
Front passenger occupant
classification system............ 135
Front passenger’s seat belt reminder light ........................ 611
Front passenger’s seat belt warning buzzer.............. 611, 614
Front seats
Adjustment ............................. 60
Front side marker lights Replacing light bulbs ............ 592
Switch ................................... 210
Wattage ................................ 680 Front turn signal lights
Replacing light bulbs .............591
Switch....................................186
Wattage .................................680
Fuel
Capacity ................................671
Fuel gauge ............................189
Fuel pump shut off system ....608
Gas station information .........744
Information ............................681
Refueling ...............................110
Type ......................................671
Warning light .........................611
Warning message .................620
Fuel door...................................110
Fuel filler door ..........................110
Fuel pump shut off system .....608
Fuses.........................................577
Garage door opener.................513
Gas station information...........744
Gauges ......................................189
Glove box..................................463
Hands-free system (for cellular phone) ................426
Hazard lights switch ................600
Head restraints
Adjusting ................................73
Headlights
Replacing light bulbs .....589, 590
Switch....................................210
Wattage .................................680
High mounted stoplight Replacing ..............................595
Wattage .................................680
Heaters Seat heaters ..........................502
Seat heaters and ventilators ...........................504
Side mirror.....................315, 317
F
G
H

736 Alphabetical index
Rear view mirrorAnti-glare ...........................88, 95
Compass ............................... 520
Rear view monitor system .................................... 234
Rear window ..................... 101, 102
Replacing Fuses .................................... 577
Light bulbs ............................. 588
Tires ...................................... 623
Wireless remote control
battery ................................. 575
Wheels .................................. 569
Rear step bumper ......................58
Reporting safety defects
for U.S.A. owners................... 702
Roll sensing of curtain
shield airbags off switch....... 134
Seatback table .......................... 507
Seat belts Adjusting the seat belt .............77
ALR .........................................81
Automatic Locking Retractor ...............................81
Child restraint system installation ........................... 144
Cleaning and maintaining
the seat belts ...................... 530
ELR .........................................81
Emergency Locking Retractor ...............................81
How to wear your seat belt......77
How your child should wear the seat belt ..........................82
Pregnant women, proper seat belt use ..............81
Reminder buzzer ........... 611, 614
Reminder light ....................... 611
Seat belt extenders .................82
Seat belt pretensioners ...........80
Seat heaters.............................. 502 Seat heaters and
ventilators .............................. 504
Seating capacity ...................... 265
Seats Adjustment ........................ 60, 65
Adjustment precautions .... 64, 68
Child seats/child restraint system installation .............. 144
Cleaning ................................ 529
Folding down the rear seat ....................................... 67
Folding down the rear seat precaution ............................. 68
Folding passenger’s seat
(vehicles with seatback
table)..................................... 63
Front seat adjustment ............. 60
Front seat adjustment
precautions ........................... 64
Driver’s seat position
memory................................. 70
Head restraint ......................... 73
Properly sitting in the seat..... 120
Raising the bottom cushion ................................. 66
Seat heaters.......................... 502
Seat heaters and
ventilators ........................... 504
Service reminder
indicators .............................. 195
Shift lever Automatic transmission ......... 181
If the shift lever cannot
be shifted ............................ 643
Shift lock system ..................... 643
Shopping bag hooks ............... 511
Side airbags ............................. 122
Side doors .................................. 49
Side marker lights
Replacing ...................... 592, 594
Switch ................................... 210
Wattage................................. 680
S