2011 TOYOTA AVALON ECU

438 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
FuseAmpereCircuit
14TA I L10 A
Parking lights, license plate lights,
tail lights, front and rear side
marker lights
15PA N E L7.5 A
Seat heaters, navigation system,
emergency flashers,
electronically controlled
automatic transmission system,
glove box light, instrument panel
lights, power outlets
16ECU IG No.110 A
Center display, shift lock control
system, moon roof, multiplex
communication system, tire pres-
sure monitoring (warning) system
17ECU IG No.210 A
Anti-lock brake system, automatic
headlight leveling system, vehicle
stability control system, multiplex
communication system
18HTR7.5 A
Air conditioning system,
instrument panel lights, electric
cooling fan
19A/C COMP7.5 AAir conditioning system
20GAUGE No.110 ABack-up lights, navigation
system, emergency flashers
21WIP30 AWindshield wipers
22RR S/SHADE10 ARear sunshade

4
Maintenance and care
439 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
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

454 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
●Do not take apart or repair the low beam discharge headlight bulbs, con-
nectors, power supply circuits, or related components.
Doing so could result in electric shock and death or serious injury.

474 5-2. Steps to take in an emergency
AVALON_U (OM41428U)
■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 BAG OFF” indicator lights
●Front passenger’s seat belt buckle switch
●The inflators
●The warning light
●The interconnecting wiring and power sources
■Front passenger detection 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
481 5-2. Steps to take in an emergency
AVALON_U (OM41428U)Loosen the center fastener that
secures the spare tire.
Remove the spare tire cover.
Replacing a flat tire
Chock the tires.
Flat tireWheel chock positions
FrontLeft-hand side Behind the rear right-hand side tire
Right-hand side Behind the rear left-hand side tire
RearLeft-hand side In front of the front right-hand side tire
Right-hand side In front of the front left-hand side tire

5
When trouble arises
485 5-2. Steps to take in an emergency
AVALON_U (OM41428U)Firmly tighten each nut two or
three times in the order shown in
the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Reinstall the wheel ornament.
Stow the flat tire, tire jack and all tools.
■To store the jack
■After completing the tire change
The tire pressure warning system must be reset. (P. 410)
To store the jack, align the hole of the
jack head with the vehicle hook. Turn
the jack joint until the jack base fits
securely with the vehicle body.
This prevents the jack from flying for-
ward during a collision or sudden stop.

486 5-2. Steps to take in an emergency
AVALON_U (OM41428U)
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or injuries due to the
vehicle suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle may be injured.

5
When trouble arises
505 5-2. Steps to take in an emergency
AVALON_U (OM41428U)
CAUTION
■If the engine has to be turned off while driving
●Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
●Vehicles without a smart key system: Never attempt to remove the key, as
doing so will lock the steering wheel.
Vehicles with a smart key sys-
tem: To stop the engine, press
and hold the “ENGINE START
STOP” switch for 3 consecu-
tive seconds or more, or press
it briefly for 3 times or more in
succession.
Stop the vehicle in a safe place by the road.
Press and hold for 3 seconds or more
or press briefly for 3 times or more