TOYOTA HIGHLANDER HYBRID 2012 XU40 / 2.G Owners Manual

501
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
Type A (fuse block on t he back of the cover)
Type A (fuse block)
FuseAmpereCircuit
1 SPARE 7.5 A Spare fuse
2 SPARE 15 A Spare fuse
3 SPARE 30 A Spare fuse

502 4-3. Do-it-yourself maintenance
4 HTR50 A Air conditioning system
5 FAN NO.1 50 A Electric cooling fan
6 FAN NO.2 50 A Electric cooling fan
7 ABS NO.1 50 A Brake system
8 RR CLR 40 A Air conditioning system
9 SPARE 40 A Spare fuse
10 RR DEF 30 A Rear window defogger
11 PBD 30 A Power back door
12 HV R/B NO.2 50 A ABS MAIN NO.1, ABS MAIN NO.2,
BATT FAN, OIL PMP
13 HV R/B NO.1 30 A Hybrid system, PCU, IGCT NO.2
IGCT NO.3, INV W/P
14 PD 50 AA/F, HORN, H-LP RH HI, H-LP LH
HI, H-LP RH LO, H-LP LH LO,
S-HORN
15 ABS NO.2 50 A Brake system
16 EPS 80 A Electric power steering
17 DC/DC 150 ARR DOOR RH, RR DOOR LH, FR
FOG, OBD, A/C W/PMP, STOP,
DOOR NO.2, AM1, P/SEAT(PS),
A/C NO.1, FUEL OPN, S/ROOF,
TAIL, PANEL, ECU IG NO.1, ECU
IG NO.2, A/C NO.2, WASH,
S-HTR, GAUGE NO.1, FR WIP,
RR WIP, ECU-ACC, ACC SOCK
NO.1, ACC SOCK NO.2, RADIO
NO.2, P/SEAT, POWER
18 EFI MAIN 30 AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.1, EFI NO.2, EFI
NO.3, F/PMP
19 TOWING 30 A Trailer lights
FuseAmpereCircuit

503
4-3. Do-it-yourself maintenance
4
Maintenance and care
20 ST
10 A Starting system
21 IG2 30 A INJ, GAUGE NO.2, IGN
22 STRG LOCK 20 A Steering lock system
23 RADIO NO.1 20 A Audio system
24 ABS MAIN
NO.3 15 AElectronically controlled brake sys-
tem
25 AMP 15 A Audio system
26 HAZ 15 A Turn signal lights
27 CAPACITER 15 A Brake system
28 G/H 10 AGlass hatch, multiplex communica-
tion system, outer foot lights
29 CRT 10 ARear seat entertainment system,
audio system
30 ETCS 15 AMultiport fuel injection system/
sequential multiport fuel injection
system
31 AM2 7.5 A Multiplex communication system
32 ECU-B NO.2 7.5 A Air conditioning system
33 HV MAIN 10 A Hybrid system
34 DOME 10 AVanity lights, personal lights, inte-
rior light, gauges and meters, door
courtesy lights, engine switch light
35 ECU-B NO.1 10 A Steering sensor, gauges and
meters, main body ECU, wireless
remote control, smart key system,
power back door, on-board diagno-
sis system, multi-information dis-
play
36 EFI NO.1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, smart key system
FuseAmpereCircuit

504 4-3. Do-it-yourself maintenance
37 WIP-S10 A Air conditioning system
38 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
39 EFI NO.3 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
40 F/PMP 15 A Fuel pump
41 INJ 15 AStarting system, multiport fuel
injection system/sequential multi-
port fuel injection system
42 DEICER 15 A Windshield wiper de-icer
43 FILTER 10 A Condenser
44 RR DEF 10 A Rear window defogger
45 MIR HTR 10 A Outside rear view mirror defoggers
46 PWR OUTLET 20 A Power outlet
47 DOOR NO.1 25 A Multiplex communication system
48 H-LP RH HI 15 A Right-hand headlight (high beam)
49 H-LP LH HI 15 A Left-hand headlight (high beam)
50 H-LP RH LO 15 A Right-hand headlight (low beam)
51 H-LP LH LO 15 A Left-hand headlight (low beam)
52 HORN 10 A Horn
53 A/F 20 A Air fuel ratio sensor
54 S-HORN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

505
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B
Type C
FuseAmpereCircuit
1 PCU 15 A Hybrid system
2 IGCT NO.2 10 A Hybrid system
3 IGCT NO.3 10 A Hybrid system
4 INV W/P 10 A Hybrid system
FuseAmpereCircuit
1 ABS MAIN
NO.1 10 AElectronically controlled brake sys-
tem
2 ABS MAIN
NO.2 10 AElectronically controlled brake sys-
tem
3 BATT FAN 30 A Hybrid system
4 OIL PMP 10 A Hybrid system

506 4-3. Do-it-yourself maintenance
■Under the instrument panel
Front side of the fuse block
Fuse block
FuseAmpereCircuit
1 P/SEAT 30 A Power seat
2 POWER 30 A Power windows
3 RR DOOR RH 25 A Power windows
4 RR DOOR LH 25 A Power windows
5 FR FOG 10 A Fog lights
6 OBD 7.5 A On-board diagnosis system
7 A/C W/PMP 7.5 A Air conditioning system
8 STOP 10 A Stop lights, electronically controlled
brake system
9 DOOR NO.2 25 A Power windows
10 AM1 7.5 A Starting system

507
4-3. Do-it-yourself maintenance
4
Maintenance and care
11 P/SEAT (PS) 30 A Power seat
12 A/C NO.1 10 A Air conditioning system
13 FUEL OPN 7.5 A Fuel filler door opener
14 S/ROOF 20 A Electric moon roof
15 TAIL 15 A Side marker lights, tail lights,
license plate lights, fog lights, trailer
lights
16 PANEL 7.5 A Glove box light, instrument panel
lights, switch illumination
17 ECU IG NO.1 10 A Multiplex communication system,
electric moon roof, electronically
controlled transmission system,
power back door, seat heaters, tire
pressure warning system, electric
power steering, auto anti-glare
inside rear view mirror, shift lock
system
18 ECU IG NO.2 7.5 A Brake system
19 A/C NO.2 10 A Air conditioning system, electric
cooling fan
20 WASH 20 A Windshield and rear window
washer
21 S-HTR 20 A Seat heaters
22 GAUGE NO.1 10 A Audio system, back-up lights,
emergency flashers, traction con-
trol system, windshield wiper
deicer, rear view monitor system,
power outlet, air conditioning sys-
tem
23 FR WIP 30 A Windshield wipers and washer
24 RR WIP 15 A Rear window wiper and washer
FuseAmpereCircuit

508 4-3. Do-it-yourself maintenance
■Luggage compartment
25 IGN 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, steering lock system,
smart key system, SRS airbag sys-
tem, hybrid system, electronically
controlled brake system
26 GAUGE NO.2 7.5 A Gauges and meters, rear view
monitor system
27 ECU-ACC 7.5 A Outside rear view mirrors, shift lock
system, smart key system, multi-
plex communication system
28 ACC SOCK
NO.1 15 A Power outlet
29 ACC SOCK
NO.2 15 A Power outlet
30 RADIO NO.2 7.5 A Audio system, rear seat entertain-
ment system, interior lights, per-
sonal lights
FuseAmpereCircuit
1 DC/DC-S 7.5 A Hybrid system
2 MAIN 180 A All electrical components
FuseAmpereCircuit

509
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
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. 510)
● 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 fuses or the fuse box.
■ Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.

510
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. 583)
■ Turn the power back door main switch OFF. (vehicles with
power back door)
P. 7 2
■ Front bulb locations
Headlight high
beams and
daytime running
lights (if equipped)
Headlight low beams
Fog lights
Parking, front side
marker and front turn
signal lights