TOYOTA PRIUS V 2012 Owners Manual (in English)

411
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
Remove the fuse.
Only type A fuse can be
removed using the pullout
tool.
Check if the fuse is blown.
Ty p e A
Normal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
STEP 4
STEP 5
12
ITY42C012

412 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
Ty p e BNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e CNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
ITO43P161

413
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
FUSEAmpereCircuit
1 HTR 50A Air conditioning system
2 RDI 30A Electric cooling fans
3 CDS 30A Electric cooling fans
4 S-HORN 10A No circuit
5 ENG W/P 30A Cooling system
6 ABS MAIN
NO.2 7.5A Anti-lock brake system
7 H-LP CLN 30A Headlight cleaner
8 P-CON MTR 30A P position control system, trans-
mission
9 AMP 30A Audio system
10 IGCT 30A PCU, IGCT NO.2, IGCT NO.3
11 DC/DC-S 5A Inverter and converter

414 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
FUSEAmpereCircuit
12 P CON MAIN 7.5A P position control system, trans-
mission
13 AM2 7.5A Power management system
14 ECU-B2 7.5A Smart key system
15 MAYDAY 10A MAYDAY
16 ECU-B3 10A Air conditioning system
17 TURN & HAZ 10A Turn signal lights
18 ETCS 10AMultiport fuel injection system/
sequential multiport fuel injection
system
19 ABS MAIN
NO.1 20A Anti-lock brake system
20 P/I 2 40AHorn, right-hand headlight (low
beam), left-hand headlight (low
beam), back-up lights
21 ABS MTR 1 30A Anti-lock brake system
22 ABS MTR 2 30A Anti-lock brake system
23 H-LP HI MAIN 20A H-LP HI RH, H-LP HI LH,
headlight switch, daytime running
light system
24 HV BATT 10A No circuit
25 DRL 7.5A Daytime running light system
26 P/I 1 60A IG2, EFI MAIN, BATT FAN
27 EPS 60A Electric power steering
28 PCU 10A Inverter and converter
29 IGCT NO.2 10A Hybrid system, P position control
system, inverter and converter

415
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
FUSEAmpereCircuit
30 MIR HTR 10A Outside rear view mirror defoggers
31 RAD NO.1 15A Audio system, navigation system
32 DOME 10ADoor courtesy lights, personal
lights, interior lights, front foot
lights, vanity lights, inside rear
view mirror, garage door opener,
overhead console
33 ECU-B 7.5ASmart key system, multiplex com-
munication system, personal
lights, gauges and meters, occu-
pant detection system (ECU and
sensors)
34 H-LP LH HI 10A Left-hand headlight (high beam)
35 H-LP RH HI 10A Right-hand headlight (high beam)
36 EFI NO.2 10AMultiport fuel injection system/
sequential multiport fuel injection
system
37 IGCT NO.3 10A Cooling system
38 SPARE 30A Spare fuse
39 SPARE 10A Spare fuse
40 SPARE 7.5A Spare fuse
41 EFI MAIN 20AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.2
42 BATT FAN 10A Battery cooling fan
43 IG2 20AMultiport fuel injection system/
sequential multiport fuel injection
system, MET-IGN, IGN, hybrid
system

416 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
■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 lumbar support
9 DBL LOCK 25A No circuit
10 FR FOG 15A Front fog lights
11 PWR SEAT FL 30A Front seat lumbar support
12 OBD 7.5A On-board diagnosis system
13 RR FOG 7.5A No circuit
ITO43P133
12
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

417
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
FUSEAmpereCircuit
14 STOP 10A Stop lights, high mounted stop-
light, brake system, driver support
system, vehicle proximity notifica-
tion system
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 Panoramic roof shades
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, inside rear view mir-
ror, garage door opener, yaw rate
& G sensor, brake system, electric
power steering, navigation system,
panoramic roof shades, tire pres-
sure warning system, seat belt
pretensioners, audio system,
emergency flashers, turn signal
lights, windshield wipers, headlight
cleaner
22 GAUGE 10AHeadlight leveling system, seat
belt reminder light, gauges and
meters
23 A/C 10A Air conditioning system
24 WASHER 15A Windshield washer
25 RR WIP 20A Rear window wiper and washer

418 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
FUSEAmpereCircuit
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 system
(ECU and sensors), smart key
system
29 PANEL 10AAir conditioning system, emer-
gency flashers, seat heaters,
transmission, P position switch,
navigation system, advanced
parking guidance system, head-
light cleaner, seat belt reminder
light, headlight leveling system,
glove box light, clock, audio sys-
tem
30 TAIL 10AHeadlight leveling system, park-
ing lights, tail lights, license plate
lights, front fog lights, side marker
lights

419
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
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. 421)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage, and possibly a fire or injury.
● Never use a fuse of a higher amperage rating than that 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 fuses or fuse boxes.
■ 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.

420 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.