2012 TOYOTA IQ engine

354
4-3. Do-it-yourself maintenance
iQ_WE_74014E
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
Removal method
Vehicles without smart entry & start system:
Turn the engine switch to the LOCK position.
Vehicles with smart entry & start system:
Turn the “ENGINE START STOP” switch OFF.
Remove the filter cover.
Left-hand drive vehicles
Right-hand drive vehicles
Remove the air conditioning filter.

361
4-3. Do-it-yourself maintenance
4
Maintenance and care
iQ_WE_74014E
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Vehicles without smart entry & start system:
Turn the engine switch to the LOCK position.
Vehicles with smart entry & start system:
Turn the “ENGINE START STOP” switch OFF.
The fuses are located in the following places. To check the
fuses, follow the instructions below.
Engine compartment
Ty p e A
Remove the cover.

366 4-3. Do-it-yourself maintenance
iQ_WE_74014E
Fuse layout and amperage ratings
Engine compartment (type A)
FuseAmpereCircuit
1 ALT 120 ACharging system, RDI, ABS NO.1,
HTR-B, ACC, CIG, GAUGE, ECU-
IG NO.1, HTR-IG, WIPER
WASHER, AM1, DOOR NO.1,
STOP, DOOR NO.2, OBD, RR
FOG, FR FOG, DEF, TAIL NO.2,
EPS, PTC NO.1, PTC NO.2, PTC
NO.3, DEICER, D/L NO.1, D/L
NO.2, PANEL
2MAIN 80 AEFI MAIN, EFI NO.1, HORN, AM2
NO.1, AM2 NO.2, DOME, ECU-B
NO.2, TURN&HAZ, H-LP LO, H-LP
LH LO, ECU-B NO.1, D/C CUT,
ETCS, H-LP HI, IG2, IGN

367 4-3. Do-it-yourself maintenance
4
Maintenance and care
iQ_WE_74014EEngine compartment (type B)
FuseAmpereCircuit
1 D/C CUT 30 A ECU-B NO.1, DOME
2 IMMOBI 7.5 A Smart entry & start system
3 TURN & HAZ 10 ATurn signal lights, emergency
flashers
4 ETCS 10 A Electronic throttle control system
5 ECU-B NO.2 5 AMeter, power windows, air condi-
tioning system
6 AM2 NO.2 7.5 A Power management ECU
7H-LP LH
*110 A Left-hand headlight
H-LP LO
*220 A Headlight (low beam)
8 (BBC) 40 A No circuit
9 SPARE 30 A Spare fuse
10 SPARE 20 A Spare fuse
11 SPARE 5 A Spare fuse
12 AM2 NO.1 30 A Starting system

369 4-3. Do-it-yourself maintenance
4
Maintenance and care
iQ_WE_74014EEngine compartment (type C: if equipped)
*: Replace the fuse with one of the same ampere rating as the original.
FuseAmpereCircuit
1(PTC NO.1)30 A
*PTC heater
50 A
*PTC heater
2 (PTC NO.3) 30 A PTC heater
3(DEICER) 20 A No circuit
(PWR HTR) 25 A No circuit
4 (PTC NO.2) 30 A PTC heater
5 (H-LP RH LO) 10 A Right-hand headlight (low beam)
6 (H-LP LH LO) 10 A Left-hand headlight (low beam)

5When trouble arises
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5-1. Essential information
Emergency flashers .......... 386
If your vehicle needs
to be towed ..................... 388
If you think something
is wrong .......................... 395
Fuel pump shut off
system ............................ 3965-2. Steps to take
in an emergency
If a warning light turns on
or a warning buzzer
sounds... ......................... 397
If you have a flat tire ......... 405
If the engine will
not start........................... 423
If the shift lever cannot
be shifted from P
(vehicles with
a Multidrive) .................... 425
If you lose your keys ......... 426
If the electronic key does
not operate properly
(vehicles with smart
entry & start system)....... 427
If the vehicle battery is
discharged ...................... 430
If your vehicle
overheats ........................ 435
If the vehicle becomes
stuck ............................... 438
If your vehicle has
to be stopped
in an emergency ............. 440

5
387 5-1. Essential information
When trouble arises
iQ_WE_74014E
NOTICE
To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
engine is not running.
Vehicles with automatic air conditioning system
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.

388
5-1. Essential information
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If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Contact
any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional, before towing.
The engine is running, but the vehicle will not move.
The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional, such as or a commercial towing service,
using a lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/pro-
vincial and local laws.
If towing from the front, the vehicle’s rear wheels and axles must be
in good condition. (P. 392)
If they are damaged, use a towing dolly or flat bed truck.