TOYOTA TUNDRA 2010 2.G Owners Manual

561
4-3. Do-it-yourself maintenance
4
Maintenance and care
Remove the fuse with the pull-
out tool.

562 4-3. Do-it-yourself maintenance
Check if the fuse has blown.
Ty p e A
Normal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
Ty p e CNormal fuse
Blown fuse
Contact your Toyota dealer.

563
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1 A/F 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
2 HORN 10 A Horn
3 EFI NO.1 25 A Multiport fuel injection system/
sequential multiport fuel injection
system
4 IG2 MAIN 30 A INJ, MET, IGN fuses
5 DEICER 20 A Front windshield wiper de-icer
6 TOW TAIL 30 A Trailer lights (tail lights)
7 POWER NO.4 25 A Power windows
8 POWER NO.2 30 A Power back windows
9 FOG 15 A Front fog lights

564 4-3. Do-it-yourself maintenance
10 STOP15 AStop lights, high mounted stop-
light, vehicle stability control sys-
tem, anti-lock brake system, shift
lock system, multiport fuel injection
system/sequential multiport fuel
injection system, towing converter
11 TOW BRK 30 A Trailer brake controller
12 IMB 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system
13 AM2 7.5 A Starting system
14 TOWING 30 A Towing converter
15 ALT-S 5 A Charging system
16 TURN-HAZ 15 A Turn signal lights, emergency
flashers, towing converter
17 F/PMP 15 A No circuit
18 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, electric throttle control sys-
tem
19 MET-B 5 A Gauges and meters
20 AMP 30 AAudio system, rear view monitor,
navigation system, rear seat enter-
tainment system
21 RAD NO.1 15 A Audio system, rear view monitor,
navigation system, rear seat enter-
tainment system
FuseAmpereCircuit

565
4-3. Do-it-yourself maintenance
4
Maintenance and care
22 ECU-B1
7.5 AMultiplex communication system,
Multiport fuel injection system/
sequential multiport fuel injection
system, auto anti-glare inside rear
view mirror, power outlets, power
front driver’s seat, power tilt and
power telescopic
23 DOME 7.5 AInterior lights, personal lights, van-
ity lights, engine switch light, foot
light, door courtesy lights, acces-
sory meter
24 HEAD LH 15 ALeft-hand headlight
(high beam)
25 HEAD LL 15 ALeft-hand headlight
(low beam)
26 INJ 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, ignition system
27 MET 7.5 A Gauges and meters
28 IGN 10 ASRS airbag system, multiport fuel
injection system/sequential multi-
port fuel injection system, cruise
control system
29 HEAD RH 15 ARight-hand headlight
(high beam)
30 HEAD RL 15 ARight-hand headlight
(low beam)
31 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, leak detection pump
32 DEF I/UP 5 A No circuit
33 SPARE 5 A Spare fuse
34 SPARE 15 A Spare fuse
FuseAmpereCircuit

566 4-3. Do-it-yourself maintenance
*: Replace the fuse with one of the same ampere rating as the original.
35 SPARE 30 A Spare fuse
36 DEFOG 40 A Back window defogger
37 SUB BATT 40 A Trailer towing
38 ABS1 50 A
Anti-lock brake system, vehicle sta-
bility control system
39 ABS2 40 A Anti-lock brake system, vehicle sta-
bility control system
40 ST 30 A Starting system
41 HTR 50 A Air conditioning system
42 LH-J/B 150 A AM1, TAIL, PANEL, ACC, CIG, LH-
IG, 4WD, ECU-IG No.1, BK/UP LP,
SEAT-HTR, A/C IG, ECU-IG No.2,
WSH, WIPER, OBD, A/C, TI&TE,
FR P/SEAT RH, MIR, DR/LCK, FR
P/SEAT LH, CARGO LP, PWR
OUTLET, POWER No.1 fuses
43 ALT 180 A
*LH-J/B, HTR, SUB BATT, TOW
BRK, STOP, FOG, TOW TAIL,
DEICER fuses
140 A
*
44 A/PUMP NO.1 50 A Multiport fuel injection system/
sequential multiport fuel injection
system
45 A/PUMP NO.2 50 A Multiport fuel injection system/
sequential multiport fuel injection
system
46 MAIN 40 A HEAD LL, HEAD RL,
HEAD LH, HEAD RH fuses
FuseAmpereCircuit

567
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 INVERTER 15 A Power outlet (115 V)
2 FR P/SEAT LH 30 A Power front driver’s seat
3 DR/LCK 25 A Multiplex communication system
4 OBD 7.5 A On-board diagnosis system
5 PWR OUTLET 15 A Power outlets
6 CARGO LP 7.5 A Cargo lamp
7 AM1 7.5 A Shift lock system, starting system
8 A/C 7.5 A Air conditioning system
9 MIR 15 A Outside rear view mirror control,
outside rear view mirror heaters
10 POWER No.3 20 A Power windows
11 FR P/SEAT RH 30 A Power front passenger seat
12 TI&TE 15 A Power tilt and power telescopic
13 S/ROOF 25 A Electric moon roof

568 4-3. Do-it-yourself maintenance
14 ECU-IG No.1 7.5 AAnti-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,
gauge 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
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 7.5A 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

569
4-3. Do-it-yourself maintenance
4
Maintenance and care
25 ACC
7.5 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 CIG 15 A Cigarette lighter
28 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. 571)
● 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 before the entire wiring harness is damaged.
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

570 4-3. Do-it-yourself maintenance
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toy-
ota dealer as soon as possible.