2012 TOYOTA HIGHLANDER Owners Manual

505
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B (if equipped)
41 H-LP RH HI 15 A Right-hand headlight (high beam)
42 H-LP LH LO 15 A Left-hand headlight (low beam)
43 H-LP RH LO 15 A Right-hand headlight (low beam)
44 HORN 10 A Horn
45 EFI NO.1 10 A
Multiport fuel injection system/
sequential multiport fuel injection
system, smart key system
46 ETCS 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
47 A/F 20 A Air fuel ratio sensor
48 S-HORN 7.5 A S-HORN
FuseAmpereCircuit
1 INV-W/P 15 A No circuit
2 IGCT NO.2 7.5 A No circuit
3 A/C 10 A No circuit
FuseAmpereCircuit

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 No circuit
8 STOP 10 A Enhanced vehicle stability control
system, multiplex communication
system, multiport fuel injection sys-
tem/sequential multiport fuel injec-
tion system, shift lock system, stop
lights

507
4-3. Do-it-yourself maintenance
4
Maintenance and care
9 DOOR NO.2 25 A Power windows
10 AM1 7.5 A Starting system 11 P/SEAT (PS) 30 A Power seat
12 A/C NO.1 10 A Air conditioning system
13 FUEL OPN 7.5 A No circuit
14 S/ROOF 20 A Electric moon roof
15 TAIL 15 A Parking 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 automatic transmission
system, power back door, seat
heaters, tire pressure warning sys-
tem, electric power steering, anti-
glare inside rear view mirror, shift
lock system, tire pressure warning
system
18 ECU IG NO.2 7.5 A Enhanced vehicle stability control
system
19 A/C NO.2 10 A Air conditioning system
20 WASH 20 A Windshield and rear window
washer
21 S-HTR 20 A Seat heaters
FuseAmpereCircuit

508 4-3. Do-it-yourself maintenance
22 GAUGE NO.1 10 AAudio system, back-up lights,
charging system, emergency flash-
ers, traction control system, wind-
shield wiper de-icer, air
conditioning system, charging sys-
tem, rear view monitor system,
trailer lights, multiport fuel injection
system/sequential multiport fuel
injection system
23 FR WIP 30 A Windshield wipers and washer
24 RR WIP 15 A Rear window wiper and washer
25 IGN 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, steering lock system,
smart key system, SRS airbag sys-
tem
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, clock, rear seat
entertainment system, interior
lights, personal lights
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.
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. 586)
■ Turn the power back door main switch OFF. (vehicles with
power back door)
 P. 6 2
■ Front bulb locations
Headlight high
beams and
daytime running
lights (if equipped)
Headlight low beams
Fog lights (if equipped)
Parking, front side
marker and front turn
signal lights

511
4-3. Do-it-yourself maintenance
4
Maintenance and care
Replacing light bulbs
■ Headlights
Turn the bulb base counterclock-
wise.
Low beam (outside)
High beam (inside)
■Rear bulb locations
Back-up lightsRear turn signal lights
Stop/tail and rear
side marker lights
License plate lights
STEP1

512 4-3. Do-it-yourself maintenance
Unplug the connector while
depressing the lock release.Low beam
High beam
■ Fog lights (if equipped)
Unplug the connector while
depressing the lock release.STEP2
STEP1