Toyota Aygo (2017 year). Instruction - part 21
340
7-3. Do-it-yourself maintenance
WARNING
■ When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident resulting
in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
● Vehicles with a compact spare tire: Do not tow if your vehicle has a com-
pact spare tire installed.
● Vehicles with an emergency tire puncture repair kit: Do not tow anything if
a tire that has been repaired using the emergency tire puncture repair kit is
installed. The load on the tire may cause unexpected damage to the tire.
■ When initializing the tire pressure warning system (if equipped)
Do not operate the tire pressure warning reset switch without first adjusting
the tire inflation pressure to the specified level. Otherwise, the tire pressure
warning light may not come on even if the tire inflation pressure is low, or it
may come on when the tire inflation pressure is actually normal.
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
341
WARNING
■ Maintenance of the tires (vehicles with the tire pressure warning sys-
tem)
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the vehi-
cle manufacturer on the vehicle placard or tire inflation pressure label (tire
and load information label). (If your vehicle has tires of a different size than
the size indicated on the vehicle placard or tire inflation pressure label [tire
and load information label], you should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-tire pressure warning system) that illu-
minates a low tire pressure telltale (tire pressure warning light) when one or
more of your tires is significantly under-inflated. Accordingly, when the low
tire pressure telltale (tire pressure warning light) illuminates, you should
stop and check your tires as soon as possible, and inflate them to the
proper pressure. Driving on a significantly under-inflated tire causes the tire
to overheat and can lead to tire failure. Under-inflation also reduces fuel effi-
ciency and tire tread life, and may affect the vehicle’s handling and stopping
ability.
Please note that the TPMS (tire pressure warning system) is not a substi-
tute for proper tire maintenance, and it is the driver’s responsibility to main-
tain correct tire pressure, even if under-inflation has not reached the level to
trigger illumination of the TPMS low tire pressure telltale (tire pressure
warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indicate when the system is not operating
7
properly. The TPMS (tire pressure warning system) malfunction indicator is
combined with the low tire pressure telltale (tire pressure warning light).
When the system detects a malfunction, the telltale will flash for approxi-
mately one minute and then remain continuously illuminated. This
sequence will continue upon subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety
of reasons, including the installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS (tire pressure warning system)
from functioning properly. Always check the TPMS (tire pressure warning
system) malfunction telltale after replacing one or more tires or wheels on
your vehicle to ensure that the replacement or alternate tires and wheels
allow the TPMS (tire pressure warning system) to continue to function prop-
erly.
AYGO_OM_Europe_OM99P46E
342
7-3. Do-it-yourself maintenance
NOTICE
■ Precaution when installing a different tire (vehicles with the tire pres-
sure warning system)
When differently constructed tires or tires of different makers, models or
tread patterns are installed, the tire pressure warning system may not oper-
ate properly.
■ Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the
cushioning ability of the tires. In addition, driving on rough roads may cause
damage to the tires themselves, as well as the vehicle’s wheels and body.
■ Low profile tires (vehicles with 165/60R15 tires)
Low profile tires may cause greater damage than usual to the tire wheel
when sustaining impact from the road surface. Therefore, pay attention to
the following:
● Be sure to use proper tire inflation pressure. If tires are under-inflated, they
may be damaged more severely.
● Avoid potholes, uneven pavement, curbs and other road hazards. Failure
to do so may lead to severe tire and wheel damage.
■ If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
343
Tire inflation pressure
Make sure to maintain the proper tire inflation pressure. Tire
inflation pressure should be checked at least once per month.
However, Toyota recommends that tire inflation pressure be
checked once every two weeks. (P. 448)
■ Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
● Reduced driving comfort and poor handling
● Reduced tire life due to wear
● Reduced safety
● Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional.
■ Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
● Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven
for more than 1.5 km or 1 mile, you will get an accurate cold tire inflation
pressure reading.
● Always use a tire pressure gauge.
7
It is difficult to judge if a tire is properly inflated based only on its appear-
ance.
● It is normal for the tire inflation pressure to be higher after driving as heat is
generated in the tire. Do not reduce tire inflation pressure after driving.
AYGO_OM_Europe_OM99P46E
344
7-3. Do-it-yourself maintenance
WARNING
■ Proper inflation is critical to save tire performance
Keep your tires properly inflated.
If the tires are not properly inflated, the following conditions may occur
which could lead to an accident resulting in death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
● Possibility of blowouts resulting from overheated tires
● Air leaking from between tire and wheel
● Wheel deformation and/or tire damage
●Greater possibility of tire damage while driving (due to road hazards,
expansion joints, sharp edges in the road, etc.)
NOTICE
■ When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or moisture may get into the valve and
cause an air leak, resulting in decreased tire inflation pressure.
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
345
Wheels
If a wheel is bent, cracked or heavily corroded, it should be
replaced. Otherwise, the tire may separate from the wheel or
cause a loss of handling control.
Wheel selection
When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width and
inset*.
Replacement wheels are available at any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
*: Conventionally referred to as “offset”.
Toyota does not recommend using the following:
● Wheels of different sizes or types
● Used wheels
● Bent wheels that have been straightened
Aluminum wheel precautions (if equipped)
● Use only Toyota wheel bolts and wrenches designed for use with
your aluminum wheels.
7
● When rotating, repairing or changing your tires, check that the
wheel bolts are still tight after driving 1600 km (1000 miles).
● Be careful not to damage the aluminum wheels when using tire
chains.
● Use only Toyota genuine balance weights or equivalent and a plas-
tic or rubber hammer when balancing your wheels.
AYGO_OM_Europe_OM99P46E
346
7-3. Do-it-yourself maintenance
WARNING
■ When replacing wheels
●Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tube-
less tire. Doing so may result in an accident, causing death or serious
injury.
■ Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an
accident.
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
347
Air conditioning filter
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
Vehicles without a smart entry & start system:
1
Turn the engine switch to the “LOCK” position.
Vehicles with a smart entry & start system:
Turn the engine switch off.
Pull out the air conditioning filter
2
as shown in the illustration.
Replace it with a new one.
3
■ Changing interval
7
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
“Toyota Service Booklet” or “Toyota Warranty Booklet”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■ When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.
AYGO_OM_Europe_OM99P46E
348
7-3. Do-it-yourself maintenance
Wireless remote control/electronic key
battery
Replace the battery with a new one if it is depleted.
You will need the following items:
● Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart entry & start sys-
tem), or CR2032 (vehicles with a smart entry & start system)
Replacing the battery
Vehicles without a smart entry & start system
1
Lift the cover.
Insert the flathead screwdriver in
the slot and push down.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
Remove the cover.
2
Insert the flathead screwdriver in
the bottom of key and push down.
: If equipped
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
349
3
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
Vehicles with a smart entry & start system
1
Remove the cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a tape.
2
Remove the battery cover.
Knob
Pull the knob of the battery cover
to remove.
7
Remove the depleted battery.
3
Insert a new battery with the “+”
terminal facing up.
AYGO_OM_Europe_OM99P46E
350
7-3. Do-it-yourself maintenance
■ Use a CR2016 (vehicles without a smart entry & start system), or CR2032
(vehicles with a smart entry & start system) lithium battery
● Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to the local laws.
■ If the key battery is depleted
The following symptoms may occur:
● The smart entry & start system (if equipped) and wireless remote control will
not function properly.
● The operational range will be reduced.
WARNING
■ Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
■ Certification for the electronic key battery
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS
NOTICE
■ For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
351
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 nec-
essary.
Vehicles without a smart entry & start system:
1
Turn the engine switch to the “LOCK” position.
Vehicles with a smart entry & start system:
Turn the engine switch off.
After a system failure, see “Fuse layout and amperage ratings” for
2
details about which fuse to check. (P. 353)
Open the fuse box cover.
3
Engine compartment
Push the tabs in and lift the
cover off.
7
Driver’s side instrument panel
Remove the cover.
AYGO_OM_Europe_OM99P46E
352
7-3. Do-it-yourself maintenance
4
Remove the fuse with the pull-
out tool.
Only type A fuse can be removed
using the pullout tool.
5
Check if the fuse is blown.
1
Normal fuse
2
Blown fuse
Type A, B and C:
Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing.
Type D:
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
Type A
Type B
Type C
Type D
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
353
Fuse layout and amperage ratings
■ Engine compartment
Fuse
Ampere
Circuit
1
H-LP RH-LO
10
Right-hand headlight (low beam)
Left-hand headlight (low beam), manual
2
H-LP LH-LO
10
headlight leveling dial
3
H-LP RH-HI
7.5
Right-hand headlight (high beam)
Left-hand headlight (high beam), gauges
4
H-LP LH-HI
7.5
and meters
7
Multiport fuel injection system/sequential
5
EFI NO.3*1
15
multiport fuel injection system
Multiport fuel injection system/sequential
6
EFI NO.4*1
7.5
multiport fuel injection system
Multiport fuel injection system/sequential
7
EFI NO.5*1
15
multiport fuel injection system
8
RDI NO.2*1
7.5
Electric cooling fan
9
A/C COMP
7.5
Air conditioning system
Multiport fuel injection system/sequential
10
IG2 NO.3*2
7.5
multiport fuel injection system, stop
lights, high mounted stoplight
11
DOME
5
Interior light, luggage compartment light
Turn signal lights, emergency flashers,
12
HAZ
10
gauges and meters
AYGO_OM_Europe_OM99P46E
354
7-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
13
HORN
10
Horn
14
D/C CUT
30
ECU-B NO.1, ECU-B NO.2, ECU-B NO.3
15
ECU-B NO.4*2
7.5
Multi-mode manual transmission
Multiport fuel injection system/sequential
16
AM2 NO.2
7.5
multiport fuel injection system
17
AM2 NO.3
7.5
Smart entry & start system
18
ICS*2
7.5
Charging system
EFI NO.3, EFI NO.4, EFI NO.5, RDI
19
EFI-MAIN*1
25
NO.2
20
ST
30
Starting system
21
STRG LOCK
7.5
Steering lock system
H-LP RH-LO, H-LP LH-LO, H-LP RH-HI,
22
H-LP-MAIN
25
H-LP LH-HI
Multiport fuel injection system/sequential
23
WIPER-S*2
7.5
multiport fuel injection system
Multiport fuel injection system/sequential
multiport fuel injection system, starting
24
STA
7.5
system, multi-mode manual transmis-
sion, Stop & Start system
25
ECU-B NO.3
15
Audio system, smart entry & start system
26
ECU-B NO.1
7.5
Gauges and meters
27
ECU-B NO.2
7.5
Vehicle stability control system
28
J/B
60
Instrument fuse box
DEF, S/HTR F/R, S/HTR F/L, CANVAS
29
ALT*2
125
TOP, ABS NO.1, ABS NO.2, RDI NO.1,
FOG FR, DRL
AMT*3
50
Multi-mode manual transmission
30
BBC*4
40
Stop & Start system
31
EPS
50
Electric power steering system
50*1
5
32
RDI NO.1
30*
Electric cooling fan
40*5
AYGO_OM_Europe_OM99P46E
7-3. Do-it-yourself maintenance
355
Fuse
Ampere
Circuit
Anti-lock brake system, vehicle stability
33
ABS NO.1
50
control system
34
SPARE
10
Spare fuse
35
SPARE
20
Spare fuse
36
SPARE
30
Spare fuse
Rear window defogger, outside rear view
37
DEF
20
mirror defoggers
Anti-lock brake system, vehicle stability
38
ABS NO.2
30
control system
39
FOG FR
7.5
Front fog lights, gauges and meters
40
DRL
7.5
Daytime running lights
41
S/HTR F/R
15
Seat heaters (right side)
42
CANVAS TOP
20
Canvas top
43
S/HTR F/L
15
Seat heaters (left side)
*1: HM01 engine
*2: 1KR engine
*3: Vehicles with a multi-mode manual transmission
*4: Vehicles with a Stop & Start system
*5: Replace the fuse with one of the same ampere rating as the original
7
AYGO_OM_Europe_OM99P46E
356
7-3. Do-it-yourself maintenance
■ Driver’s side instrument panel
Fuse
Ampere
Circuit
Back-up light, multiport fuel injection sys-
tem/sequential multiport fuel injection
1
IG1 NO.2
5
system, audio system, vehicle stability
control system
2
WASHER
15
Windshield washer, rear window washer
Main body ECU, gauges and meters, air
conditioning system, rear window defog-
3
ECU-IG NO.1
5
ger, outside rear view mirror defoggers,
seat heaters, canvas top, audio system,
PCS system
Electric power steering system, Stop &
4
ECU-IG NO.2
5
Start system
5
WIPER RR
15
Rear window wiper
Electric cooling fan, anti-lock brake sys-
6
IG1 NO.1
5
tem, vehicle stability control system
7
WIPER
25
Windshield wiper
8
MIR HTR
10
Outside rear view mirror defoggers
9
P/OUTLET
15
Power outlet
Outside rear view mirrors, audio system,
10
ECU-ACC
7.5
Stop & Start system, gauges and meters
AYGO_OM_Europe_OM99P46E