fuse TOYOTA PRIUS 2010 3.G User Guide

466 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
FUSEAmpereCircuit
12 AM2 7.5A Power windows
13 ECU-B2 7.5A Smart key system
14 MAYDAY 10A No circuit
15 ECU-B3 10A Air conditioning system
16 TURN & HAZ 10A Turn signal lights
17 ETCS 10AMultiport fuel injection system/
sequential multiport fuel injection
system
18 ABS MAIN
NO.1 20A Anti-lock brake system
19 P/I 2 40AParking control system, horn,
right-hand headlight (low beam),
left-hand headlight (low beam),
back-up lights
20 ABS MTR 1 30A Anti-lock brake system
21 ABS MTR 2 30A Anti-lock brake system
22 H-LP HI MAIN 20A H-LP HI RH, H-LP HI LH,
headlight switch, daytime running
light system
23 P/I 1 60A IG2, EFI MAIN, BATT FAN
24 EPS 60A Electric power steering
25 PCU 10A Inverter and converter
26 IGCT NO.2 10A Hybrid system, parking control
system, power windows, inverter
and converter

467
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
FUSEAmpereCircuit
27 MIR HTR 10A Outside rear view mirror defoggers
28 RAD NO.1 15A Audio system, navigation system
29 DOME 10ADoor courtesy lights, personal
lights, interior lights, front foot
lights, vanity lights, inside rear
view mirror, garage door opener,
electric power steering
30 ECU-B 7.5ASmart key system, multiplex com-
munication system, personal
lights, gauges and meters
31 H-LP LH HI 10A Left-hand headlight (high beam)
32 H-LP RH HI 10A Right-hand headlight (high beam)
33 EFI NO.2 10AMultiport fuel injection system/
sequential multiport fuel injection
system
34 IGCT NO.3 10A Cooling system
35 SPARE 30A Spare fuses
36 SPARE 15A Spare fuses
37 SPARE 7.5A Spare fuses
38 EFI MAIN 20AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.2
39 BATT FAN 10A Battery cooling fan
40 IG2 20AMultiport fuel injection system/
sequential multiport fuel injection
system, MET-IGN, IGN, power
windows

468 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.■
Left side instrument panel
FUSEAmpereCircuit
1 CIG 15A Power outlets
2 ECU-ACC 10AMultiplex communication system,
outside rear view mirrors, driver
support system, audio system,
navigation system
3 PWR OUTLET 15A Power outlets
4 SEAT HTR FR 10A Seat heater
5 SEAT HTR FL 10A Seat heater
6 DOOR NO.1 25A Power door lock system
7 PSB 30A Pre-Collision System
8 PWR SEAT FR 30A Front seat lumber support
9 DBL LOCK 25A Tilt & telescopic steering
10 FR FOG 15A Front fog lights
11 PWR SEAT FL 30A Front seat lumber support
12 OBD 7.5A On-board diagnosis system
13 RR FOG 7.5A No circuit
14 STOP 10AStop lights, high mounted stop-
light, brake system, power win-
dows, driver support system
ITO43P133
1
2
3 4
56 7
8
910
11 12
13
14 15
16 17
18 19
23 24 25
26
2728
29
30
20 21 22

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4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
FUSEAmpereCircuit
15 P FR DOOR 25A Power windows
16 D FR DOOR 25A Power windows
17 DOOR RR 25A Power windows
18 DOOR RL 25A Power windows
19 S/ROOF 30A Electric moon roof
20 ECU-IG NO.1 10A Electric cooling fans, multiplex
communication system
21 ECU-IG NO.2 10A Driver support system, Pre-Colli-
sion System, LKA system, inside
rear view mirror, garage door
opener, yaw rate & G sensor,
brake system, electric power
steering, navigation system, elec-
tric moon roof, tire pressure warn-
ing system, seat belt
pretensioners, audio system,
emergency flashers, turn signal
lights, windshield wipers, headlight
cleaner
22 GAUGE 10A Headlight leveling system, front
passenger’s seat belt reminder
light, gauges and meters
23 A/C 10A Air conditioning system, Solar
Ventilation System, Remote Air
Conditioning System
24 WASHER 15A Windshield washer

470 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
FUSEAmpereCircuit
25 RR WIP 20A Rear window wiper and washer
26 WIP 30A Windshield wipers
27 MET 7.5A Gauges and meters
28 IGN 10ABrake system, driver support sys-
tem, multiport fuel injection sys-
tem/sequential multiport fuel
injection system, SRS airbag sys-
tem, occupant detection sensor,
power windows, smart key system
29 PANEL 10AAir conditioning system, emer-
gency flashers, seat heaters,
transmission, “P” position switch,
navigation system, Solar Ventila-
tion System, Remote Air Condi-
tioning System, advanced parking
guidance system, headlight
cleaner, front passenger’s seat
belt reminder light, headlight level-
ing system, glove box light, clock,
audio system
30 TAIL 10AHeadlight leveling system, park-
ing lights, tail lights, license plate
lights, front fog lights, side marker
lights

471
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
■
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. 472)
● 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 writing harness is dam-
aged.
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.

538
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
If the hybrid system will not start
If the hybrid system still does not start after following the correct
starting procedure (
P. 164), confirm the following points.
■ The hybrid system will not start even if you are carrying the
correct key.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank. 
Refuel the vehicle.
● The electronic key battery may be discharged. ( P. 541)
● The hybrid system may be malfunct ioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malfunc tion, an interim measure is
available to start the hybrid system. ( P. 539)
● There may be a malfunction in the immobilizer system. 
( P. 108)
■ The interior lights and headlight s are dim, or the horn does
not sound or sounds at a low volume.
One of the following may be the cause of the problem.
● The 12 volt battery may be discharged. ( P. 543)
● The 12 volt battery terminal c onnections may be loose or cor-
roded.

5
When trouble arises
543
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
If the 12 volt batter y is discharged
The following procedures may be used to start the hybrid system if
the vehicle’s 12 volt battery is discharged. 
You can call your Toyota dealer or qualified repair shop.
If you have a set of jumper (or boo ster) cables and a second vehi-
cle with a 12 volt battery, you can jump start your Toyota following
the steps below.
Open the hood and fuse block
cover.
Open the exclusive jump start-
ing terminal cover.
ITO43P127
STEP1
ITO52P135
STEP2

604 Alphabetical index
PRIUS_U (OM47668U) U.S.A.
Front side marker lightsReplacing light bulbs ............. 472
Wattage .................................567
Front turn signal lights Replacing light bulbs ............. 472
Wattage .................................567
Fuel Capacity ................................558
Fuel gauge ............................ 181
Information ............................ 568
Refueling ............................... 104
Type ......................................568
Fuel door...................................104
Fuel filler door .......................... 104
Fuses......................................... 462
Garage door opener.................389
Gauges ......................................181
Glove box.................................. 368
Hands-free system 
(for cellular phone) ................326
Hazard lights
Switch.................................... 486
Head restraints ...........................82
Headlight cleaner ..................... 213
Headlights Replacing light bulbs ............. 472
Switch.................................... 206
Wattage .................................567
Heaters Seat heaters .......................... 381
Side mirror............................. 289
Hood .......................................... 420
Hooks Cargo .................................... 385
Horn...........................................180 Hybrid system
Emergency shut off system..... 33
Energy monitor/ 
consumption screen ........... 190
High-voltage components ....... 32
Power switch ......................... 162
I/M test ...................................... 415
Identification Engine ................................... 557
Vehicle .................................. 557
Ignition switch.......................... 162
Illuminated entry system......... 363
Immobilizer system ................. 108
Indicator lights ......................... 185
Initialization Items to initialize ................... 593
Inside rear view mirror .............. 93
Instrument panel light  control .................................... 184
Interior lights
Interior lights ......................... 363
Switch ................................... 363
Wattage................................. 567
Jack Positioning a floor jack .......... 423
Vehicle-equipped jack ........... 524
Jack handle .............................. 524
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606 Alphabetical index
PRIUS_U (OM47668U) U.S.A.
Parking brake ...........................179
Parking lightsReplacing light bulbs ............. 472
Switch.................................... 206
Wattage .................................567
PCS............................................ 249
Personal lights .........................363
Power outlet ............................. 379
Power windows ..........................98
Pre-Collision System ............... 249
Radiator .................................... 432
Radio ......................................... 294
Rear turn signal lights
Replacing light bulbs ............. 472
Wattage .................................567
Rear view monitor system ......231
Rear window defogger ............289
Rear window wiper 
and washer ............................. 212
Remote Air C onditioning 
System .................................... 285
Replacing Electronic key battery ............460
Fuses .................................... 462
Light bulbs ............................. 472
Tires ......................................524
Reporting safety defects for  U.S. owners ............................ 596 Safety Connect......................... 395
Seat belts
Adjusting the seat belt............. 85
Automatic Locking Retractor 
(ALR) .................................... 87
Child restraint system 
installation........................... 137
Cleaning and maintaining 
the seat belts ...................... 408
Emergency Locking Retractor 
(ELR) .................................... 87
How to wear your seat belt ..... 85
How your child should wear 
the seat belt .......................... 88
Pregnant women, 
proper seat belt use .............. 87
Reminder light ....................... 499
Seat belt extenders ................. 88
Seat belt pretensioners ........... 86
Seat heaters ............................. 381
Seating capacity ...................... 260
Seats Adjustment .............................. 78
Adjustment precautions .......... 79
Child seats/child restraint system installation .............. 137
Cleaning ................................ 407
Head restraint ......................... 82
Properly sitting in the seat..... 111
Seat heaters.......................... 381
Service reminder 
indicators .............................. 185
Shift lever Transmission......................... 171
Side airbags ............................. 113
Side marker lights Replacing light bulbs ............. 472
Switch ................................... 206
Wattage................................. 567
Side mirror
Adjusting and folding............... 96P
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