2012 TOYOTA AVALON fuel

448 4-3. Do-it-yourself maintenance
FuseAmpereCircuit
21 EFI No.1 25 A Multiport fuel injection system/
sequential multiport fuel injection
system, fuel pump
22 HORN 10 A Horn
23 HEAD LH UPR 15 A Left-hand headlight (high beam)
24 HEAD RH UPR 15 A Right-hand headlight (high beam)
25 A/F 25 A Air fuel ratio sensor
26 WASHER 20 A Windshield washer
27 S-HORN 7.5 A Horn
28 DOME 7.5 A Gauges and meters, clock, front
personal lights, door courtesy
lights, garage door opener, rear
personal lights, trunk light
29 ECU-B 10 A Center display, multiplex
communication system
30 RAD No.1 15 A Audio system, center display,
navigation system
31 EFI No.2 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
32 STOP No.2 7.5 A Stop lights, high mounted
stoplight, vehicle stability control
system, anti-lock brake system
33 HEAD RH LWR 15 A Right-hand headlight (low beam)
34 HEAD LH LWR 15 A Left-hand headlight (low beam)

4
Maintenance and care
449
4-3. Do-it-yourself maintenance
■
Driver’s side instrument panel
FuseAmpereCircuit
1RR DOOR20 APower window
2RL DOOR20 APower window
3FR DOOR20 APower window, driving position
memory system
4FOG15 AFront fog lights
5OBD7.5 AOn-board diagnosis system
6MPX-B7.5 AMultiplex communication system
7FL DOOR20 APower window, driving position
memory system
8FUEL OPN7.5 AFuel filler door opener
9AM17.5 A
Multiport fuel injection system/
sequential multiport fuel injection
system, starting system, ignition
system
10A/C7.5 AAir conditioning system
11S-HTR20 AAir conditioning system
12DOOR No.225 AMultiplex communication system
13S/ROOF30 AMoon roof

4
Maintenance and care
451
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
23IGN10 A
Multiport fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, front
passenger occupant
classification system, smart key
system, starting system, electronic
controlled transmission system
24GAUGE No.27.5 AGauges and meters, center
display
25ECU-ACC7.5 A
Power rear view mirrors, center
display, shift lock system,
multiplex communication system
26CIG15 A
27PWR OUTLET15 APower outlets
28RADIO No.27.5 AAudio system, navigation system
29MIR HTR10 AOutside rear view mirror
defoggers

When trouble arises5
471
5-1. Essential informationEmergency flashers ......... 472
If your vehicle needs to be towed .................... 473
If you think something is wrong ............................. 477
Fuel pump shut off system ........................... 478
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 479
If you have a flat tire......... 491
If the engine will not start .......................... 501
If the shift lever cannot be shifted from P............ 503
If you lose your keys ........ 504
If the electronic key does not operate properly (with
smart key system) .......... 505
If the vehicle battery is discharged ..................... 508
If your vehicle overheats ....................... 512
If the vehicle becomes stuck .............................. 515
If your vehicle has to be stopped in an
emergency ..................... 516

478
5-1. Essential information
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles with smart key system: Turn the “ENGINE START
STOP” switch OFF.
Vehicles without smart key syst em: Turn the engine switch to
the “ACC” or “LOCK” position.
Restart the engine.
NOTICE
■ Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an air-
bag inflates upon collision, the fuel pump shut off system stops sup-
plying fuel to the engine.
STEP1
STEP2

482 5-2. Steps to take in an emergency
Warning lightWarning light/DetailsCorrection procedure
Low fuel level warning
light Remaining fuel
(Approximately 2.6 gal. [10
L, 2.2 Imp.gal.] or less) Refuel the vehicle.
Driver’s seat belt
reminder light (warning
buzzer)
*2
Warns the driver to fasten
his/her seat belt. Fasten the seat belt.
Front passenger’s seat
belt reminder light
(warning buzzer)
*2
Warns the front passen-
ger to fasten his/her seat
belt. Fasten the seat belt.
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes (
P. 488)
• Flat tire ( P. 491)
Adjust the tire inflation
pressure to the specified
level.
The light will turn off after a
few minutes. In case the
light does not turn off even
if the tire inflation pressure
is adjusted, have the sys-
tem checked by your Toy-
ota dealer.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system.

( P. 488)
Have the system checked
by your Toyota dealer.

486 5-2. Steps to take in an emergency
■If the malfunction indicator lamp comes on while driving
First check the following:
● Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
● Front airbag sensors
● The curtain shield airbag sensors
● The side and curtain shield airbag sensor assemblies
● The driver’s seat position sensor
● Driver’s seat belt buckle switch
● The front passenger occupant classification ECU
● The pressure sensor
● The belt tension sensor
● “AIR BAG ON” and “AIR BA G OFF” indicator lights
● Front passenger’s seat belt buckle switch
● The inflators
● The warning light
● The interconnecting wiring and power sources
■ Front passenger detect ion sensor and passenger seat belt reminder
If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash, even if a passenger is not
sitting in the seat.

5
When trouble arises
489
5-2. Steps to take in an emergency
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as
soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If the tire is flat, change to the spare tire and have the flat tire repaired
by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent 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 pr essure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-ti re pressure warning system) that
illuminates a low tire pressure telltal e (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale (tire pre ssure warning light) illumi-
nates, 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.