audio TOYOTA YARIS 2012 Repair Manual

525 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79EUnder the instrument panel
FuseAmpereCircuit
1 TAIL NO.2 10 A
Front position lights, tail lights,
license plate lights, front fog lights,
rear fog light, multiport fuel injection
system/sequential multiport fuel
injection system, gauge and meters
2 PANEL 5 AGauge and meters, instrument
panel lights, switch illumination
3 DOOR R/R 20 A Power windows
4 DOOR P 20 A Power windows
5 ECU-IG NO.1 5 AElectric cooling fan, rear window
defogger, electric power steering,
main body ECU, windshield wipers,
VSC
6 ECU-IG NO.2 5 A ABS, VSC, Stop & Start system
7A/C 7.5 AAir conditioning system, power
heater, rear window defogger, out-
side rear view mirror defoggers
8 GAUGE 10 ABack-up lights, shift lock control
system, rear seat belt reminder
lights, auto anti-glare inside rear
view mirror, multidrive, audio sys-
tem, multiport fuel injection system/
sequential multiport fuel injection
system, rain sensor

526 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
*1: Replace the fuse with one of the same ampere rating as the original.
*2: Vehicles with front fog lights (H16 halogen bulbs)
*3: Vehicles with front fog lights (H11 halogen bulbs) 9 WASHER 15 A Windshield washer
10 WIPER 20 A Windshield wipers
11 WIPER RR 15 A Rear window wiper
12 P/W 30 A Power windows
13 DOOR R/L 20 A Power windows
14 DOOR 20 A Power windows
15 CIG 15 A Power outlets
16 ACC 5 AMain body ECU, outside rear view
mirrors, audio system, Stop & Start
system, shift lock control system
17 D/L 25 A Power door lock system
18 OBD 7.5 A On-board diagnosis system
19 FOG RR 7.5 A Rear fog light, gauge and meters
20 STOP 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, smart entry & start system,
ABS, VSC, stop lights, high
mounted stoplight, shift lock control
system
21 AM1 7.5 A Starting system
22 FOG FR7.5 A
*1,2
Front fog lights, gauge and meters
15 A*1,3
23 D-D/L 25 A D-D/L
24 SHADE 25 A
25 S-HTR 15 A Seat heaters
FuseAmpereCircuit

528 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
11 IG2 NO.2 10 ASmart entry & start system, push-
button start system, multiport fuel
injection system/sequential multi-
port fuel injection system, SRS air-
bag system, steering lock system,
stop lights
12 DOME 15 AAudio system, main body ECU,
personal lights, foot well lights
13 ECU-B NO.1 5 AMain body ECU, smart entry & start
system
14 METER 7.5 A Gauge and meters
15 IGN 15 AMultiport fuel injection system/
sequential multiport fuel injection
system
16 H-LP RH-HI 5 A Right-hand headlight (high beam)
17 H-LP LH-HI 5 ALeft-hand headlight (high beam),
gauge and meters
18 D/L NO.2 25 A
Power door lock
19 HAZ 10 A Emergency flashers
20 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
21 ABS NO.1 20 A Brake system
22 ENG W/PMP 30 AMultiport fuel injection system/
sequential multiport fuel injection
system
23 H-LP-MAIN 20 AH-LP LH-LO, H-LP RH-LO, H-LP
LH-HI, H-LP RH-HI
24 ABS MTR NO.1 30 A Brake system
25 P/I 50 A EFI-MAIN, HORN, IG2
FuseAmpereCircuit

529 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
26 ECU-B NO.2 5 AAir conditioning system, gauge and
meters, smart entry & start system,
push-button start system
27 AM2 7.5 A Start system
28 DRL 7.5 A Daytime running lights
29 STRG LOCK 20 A Starter system
30 ABS NO.2 7.5 A Brake system
31 AMP 15 A Audio system
32 IGCT-MAIN 30 AIGCT NO.2, IGCT NO.3, IGCT
NO.4, PCU, BATT FAN
33 D/C CUT 30 A DOME, ECU-B NO.1
34 PTC HTR NO.1 30 A No circuit
35 PTC HTR NO.2 30 A No circuit
36 FAN 30 A Electric cooling fan
37 PTC HTR NO.3 30 A No circuit
38 DEF 25 A MIR HTR, rear window defogger
39 MIR HTR 10 A Outside rear view mirror defogger
40 BATT FAN 10 A Battery cooling fan
41 IGCT NO.2 10 A Hybrid system
42 IGCT NO.4 10 A Hybrid system
43 PCU 10 A Hybrid system
44 IGCT NO.3 10 A Hybrid system
FuseAmpereCircuit

531 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79EUnder the instrument panel
FuseAmpereCircuit
1 TAIL NO.2 10 A
Front position lights, tail lights,
license plate lights
2 PANEL 5 AInstrument panel lights, manual
headlight leveling dial, gauge and
meters
3 DOOR R/R 20 A Power window
4 DOOR P 20 A Power window
5 ECU-IG NO.1 5 ARear window defogger, main body
ECU, brake system, vehicle stabil-
ity control system, shift lock control
system, audio system, windshield
wipers
6 ECU-IG NO.2 5 A Electric power steering system
7 A/C 7.5 A Air conditioning system
8 GAUGE 10 ABack-up lights, shift lock control
system, rear seat belt reminder
lights, auto anti-glare inside rear
view mirror, hybrid transmission,
audio system, multiport fuel injec-
tion system/sequential multiport
fuel injection system, rain sensor
9 WASHER 15 A Windshield wipers and washer
10 WIPER 20 A Windshield wipers and washer
11 WIPER RR 15 A Rear window wiper

532 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
12 P/W 30 A Power windows
13 DOOR R/L 20 A Power windows
14 DOOR 20 A Power windows
15 CIG 15 A Power outlets
16 ACC 5 AMain body ECU, audio system, out-
side rear view mirrors, shift lock
control system, vanity lights
17 D/L 25 A Power door lock system
18 OBD 7.5 A On-board diagnosis system
19 FOG RR 7.5 A Rear fog light, gauge and meter
20 STOP 7.5 AStarter system, shift lock control
system, brake system, stop lights,
high mounted stoplight
21 AM1 7.5 A No circuit
22 FOG FR 7.5 A Front fog lights, gauge and meters
23 D-D/L 25 A D-D/L
24 SHADE 25 A
25 S-HTR 15 A Seat heaters
FuseAmpereCircuit

628 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Starting the engine when the battery is discharged (vehicles with a
Multidrive)
The engine cannot be started by push-starting.
To prevent battery discharge
Turn off the headlights and the audio system while the engine is off.
Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic.
Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
Precautions when the battery is discharged (vehicles with a smart
entry & start system)
In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the battery is discharged. Use the wireless
remote control or the mechanical key to lock or unlock the doors.
The engine may not start on the first attempt after the battery has
recharged but will start normally after the second attempt. This is not a
malfunction.
The “ENGINE START STOP” switch mode is memorized by the vehicle.
When the battery is reconnected, the system will return to the mode it
was in before the battery was discharged. Before disconnecting the bat-
tery, turn the “ENGINE START STOP” switch off.
If you are unsure what mode the “ENGINE START STOP” switch was in
before the battery discharged, be especially careful when reconnecting
the battery.

632 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system is
off.
Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic.
Precautions when the 12-volt battery is discharged
In some cases, it may not be possible to unlock the doors using the smart
entry & start system immediately after the 12-volt battery has been dis-
connected and reconnected. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
Open and close any of the doors of your vehicle with the
engine switch (vehicles without an electronic key) or
“POWER” switch (vehicles with an electronic key) off.
Maintain the engine speed of the second vehicle and start
the hybrid system of your vehicle by turning the engine
switch (vehicles without an electronic key) to “ON” position
or “POWER” switch (vehicles with an electronic key) to ON
mode.
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped profes-
sional.
Once the hybrid system has started, remove the jumper
cables in the exact reverse order from which they were con-
nected.
Once the hybrid system starts, have the vehicle inspected at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional as soon as possible.

5
633 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
The hybrid system may not start on the first attempt after the 12-volt bat-
tery has recharged but will start normally after the second attempt. This is
not a malfunction.
Vehicles with an electronic key: The “POWER” switch mode is memo-
rized by the vehicle. When the 12-volt battery is reconnected, the system
will return to the mode it was in before the 12-volt battery was dis-
charged. Before disconnecting the 12-volt battery, turn the “POWER”
switch off.
If the “POWER” switch was in ACCESSORY or ON mode before the 12-
volt battery was discharged, the audio system and/or air conditioning
system may operate when the 12-volt battery is reconnected.
Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even
when the vehicle is not in use, due to natural discharge and the draining
effects of certain electrical appliances. If the vehicle is left for a long time, the
12-volt battery may discharge, and the hybrid system may be unable to start.
(The 12-volt battery recharges automatically while the hybrid system is oper-
ating.)
CAUTION
Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt battery:
Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with anything other than the intended ter-
minal.
Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.

687
YARIS_F (including HV)_WE_52C79E
Alphabetical index
Alphabetical index
A/C..................................... 356, 363
ABS ........................................... 326
Air conditioning filter .............. 502
Air conditioning system
Air conditioning filter.............. 502
Automatic air conditioning
system ................................ 363
Manual air conditioning
system ................................ 356
Airbags
Airbag manual on-off
system ................................ 177
Airbag operating
conditions ........................... 168
Airbag precautions for
your child ............................ 173
Airbag warning light .............. 568
Curtain shield airbag
operating conditions ........... 168
Curtain shield airbag
precautions ......................... 172
General airbag precautions... 172
Locations of airbags .............. 166
Modification and disposal of
airbags ................................ 176
Proper driving posture... 164, 172
Side airbag operating
conditions ........................... 168
Side airbag precautions ........ 172
SRS airbags .......................... 166
Antenna .................................... 384
Anti-lock brake system ........... 326
Armrest ..................................... 436
Ashtray ..................................... 430
Assist grips .............................. 438Audio input............................... 413
Audio system
Antenna ................................ 384
Audio input ............................ 413
AUX port ............................... 413
CD player .............................. 385
iPod....................................... 396
MP3/WMA disc ..................... 390
Optimal use........................... 411
Portable music player ........... 413
Radio .................................... 381
Steering wheel audio
switch ................................. 414
Type ...................................... 376
USB memory ........................ 404
Automatic air conditioning
system .................................... 363
Automatic light control
system .................................... 293
AUX port ................................... 413
Auxiliary box ............................ 441
Back door ................................. 119
Back-up lights
Replacing light bulbs............. 535
Wattage ................................ 677
Battery
Checking ....................... 482, 487
If the vehicle has a
discharged battery .............. 624
If the vehicle has a
discharged 12-volt
battery ................................ 631
Preparing and checking
before winter....................... 338
Bluetooth
® audio*
Bluetooth® phone*
Bottle holders .......................... 423
A
B
*: Refer to ““touch screen” Owner’s Manual”.