TOYOTA SEQUOIA 2012 2.G Owners Manual

571
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 L2 RR2 SEAT 30 A Power third seat
6 L1 RR2 SEAT 30 A Power third seat
7 CDS FAN 25 A Electric cooling fans
8 DEICER 20 A Windshield wiper de-icer
9 TOW TAIL 30 A Trailer lights (tail lights)
10 CDS FAN NO.2 25 A Electric cooling fans
11 R2 RR2 SEAT 30 A Power third seat
12 R1 RR2 SEAT 30 A Power third seat

572 4-3. Do-it-yourself maintenance
13 POWER NO.4 25 A Power windows
14 FOG15 A Front fog lights
15 STOP 15 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
16 TOW BRK 30 A Trailer brake controller
17 IMB 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system
18 AM2 7.5 A Starting system
19 TOWING 30 A Towing converter
20 AI-HTR 10 A Air injection pump heaters
21 ALT-S 5 A Charging system
22 TURN-HAZ 15 A Turn signal lights, emergency
flashers, towing converter
23 F/PMP 25 A Fuel pump
24 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, electric throttle control sys-
tem
25 MET-B 5 A Gauges and meters
26 AMP 30 AAudio system, rear view monitor,
navigation system, rear seat enter-
tainment system
27 RAD NO.1 15 A Audio system, rear view monitor,
navigation system, rear seat enter-
tainment system
FuseAmpereCircuit

573
4-3. Do-it-yourself maintenance
4
Maintenance and care
28 ECU-B1
7.5 AMultiplex communication system,
Multiport fuel injection system/
sequential multiport fuel injection
system, auto anti-glare inside rear
view mirror, power front driver’s
seat, power tilt and power tele-
scopic, power back door, gateway
ECU
29 DOME 7.5 AInterior lights, personal lights, van-
ity lights, engine switch light, foot
light, door courtesy lights, acces-
sory meter, power back door,
power third seat
30 HEAD LH 15 ALeft-hand headlight
(high beam)
31 HEAD LL 15 ALeft-hand headlight
(low beam)
32 INJ 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, ignition system
33 MET 7.5 A Gauges and meters
34 IGN 10 ASRS airbag system, multiport fuel
injection system/sequential multi-
port fuel injection system, cruise
control system, gateway ECU
35 HEAD RH 15 ARight-hand headlight
(high beam)
36 HEAD RL 15 ARight-hand headlight
(low beam)
37 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, leak detection pump
38 DEF I/UP 5 A No circuit
FuseAmpereCircuit

574 4-3. Do-it-yourself maintenance
39 AIR SUS NO.2 7.5 AElectronically modulated air sus-
pension system
40 SPARE 5 A Spare fuse
41 SPARE 15 A Spare fuse
42 SPARE 30 A Spare fuse
43 AIR SUS 50 A Electronically modulated air sus-
pension system
44 PBD 30 A Power back door
45 RR HTR 40 A Air conditioning system
46 H-LP CLN 30 A Headlight cleaner
47 DEFOG 40 A Rear window defogger
48 SUB BATT 40 A Trailer towing
49 ABS1 50 AAnti-lock brake system, vehicle sta-
bility control system
50 ABS2 40 AAnti-lock brake system, vehicle sta-
bility control system
51 ST 30 A Starting system
52 HTR 50 A Air conditioning system
53 LH-J/B 150 AAM1, 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
54 ALT 180 A
*LH-J/B, HTR, SUB BATT, TOW
BRK, STOP, FOG, TOW TAIL,
DEICER fuses
140 A
*
55 A/PUMP NO.1 50 A Multiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

575
4-3. Do-it-yourself maintenance
4
Maintenance and care
*: Replace the fuse with one of the same ampere rating as the original.
56 A/PUMP NO.2 50 A
Multiport fuel injection system/
sequential multiport fuel injection
system
57 MAIN 40 A HEAD LL, HEAD RL,
HEAD LH, HEAD RH fuses
FuseAmpereCircuit

576 4-3. Do-it-yourself maintenance
■Under the instrument panel
FuseAmpereCircuit
1 INVERTER 15 A Power outlet (120 V)
2 FR P/SEAT LH 30 A Power front driver’s seat
3 DR/LCK 25 A Multiplex communication system
4 POWER No.5 30 A Power back door
5 OBD 7.5 A On-board diagnosis system
6 PWR OUTLET 15 A Power outlets
7 AM1 7.5 A Shift lock system, starting system,
seat heaters
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
14 RR SEAT-HTR
RH 10 A Seat heaters

577
4-3. Do-it-yourself maintenance
4
Maintenance and care
15 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, power back door, head
light cleaner, Blind Spot Monitor
system, BSM main switch
16 AIR SUS IG 20 A Electronically modulated air sus-
pension system
17 LH-IG 7.5 A Back-up lights, charging system,
gauge and meters, turn signal
lights, air conditioning system, seat
heaters, rear window defogger
18 4WD 20 A Four-wheel drive control system
19 RR SEAT-HTR
LH 10 A Seat heaters
20 WSH 20 A Window washer
21 WIPER 30 A Wiper and washer
22 ECU-IG No.2 7.5 A Multiplex communication system,
power steering, gateway ECU
23 TAIL 15 A Tail lights, trailer lights (tail lights),
parking lights
24 A/C IG 10 A Air conditioning system
25 SEAT-HTR 20 A Seat heater or Heated and venti-
lated seats
FuseAmpereCircuit

578 4-3. Do-it-yourself maintenance
26 PANEL7.5 AInstrument panel lights, glove box
light, ashtray, accessory meter,
audio system, rear view monitor,
navigation system, rear seat enter-
tainment system, gauges and
meters, air conditioning system,
seat heater or heated and venti-
lated switches, BSM main switch
27 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
28 BK/UP LP 10 A Back-up light, gauges and meters
29 CIG 15 A Cigarette lighter
30 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. 580)
● 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.
FuseAmpereCircuit

579
4-3. Do-it-yourself maintenance
4
Maintenance and care
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.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toy-
ota dealer as soon as possible.

580
4-3. Do-it-yourself maintenance
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perfor m, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■ Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. ( P. 655)
■ Front bulb locations
Headlight low
beam
Front side marker
lights
Headlight high
beam Front fog lights
(if equipped)
Front turn signal/
parking lights and
daytime running
lights (if equipped)