TOYOTA AVALON 2008 XX30 / 3.G Owners Manual

4
Maintenance and care
341
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
■
Replacing the battery (vehicles without smart key system)
Remove the cover.
Remove the module.
STEP3
STEP1
STEP2

342 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
■If the key battery is discharged
The following symptoms may occur.
● The smart key system and wireless remote control will not function prop-
erly.
● The operational range is reduced.
■ Use a CR1632 (vehicles with smar t key system), or CR2016 (vehicles
without smart key system ) lithium battery
● Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by a Toy-
ota dealer.
● Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children. 
These parts are small and if swallowed by a child they can cause choking.
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the
“+” terminal facing up.
STEP3

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Maintenance and care
343
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
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 components inside the remote control.
● Do not bend the battery terminals.

344
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
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.
Turn the “ENGINE START STOP” switch or the engine
switch to OFF mode.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Driver’s side instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 346) for details about which fuse to check.STEP1
STEP2
STEP3

4
Maintenance and care
345
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Remove the fuse with the pull-
out tool.
Check if the fuse has blown.
Ty p e A
Normal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
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STEP4
STEP5

346 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1 RR DEF 50 A Rear window defogger, outside
rear view mirror defogger
2 ABS/VSC No.2 30 A Anti-lock brake system, vehicle
stability control system
3 RDI FAN 50 A Electric cooling fan
4 ABS/VSC No.1 50 A Anti-lock brake system, vehicle
stability control system
5 HEATER 50 A Air conditioning system
6 ST/AM2 30 A Starter system
7 MAIN 40 A Headlights

4
Maintenance and care
347
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
FuseAmpereCircuit
8ALT 140 A
(Limited
grade)120 A
(XL, XLS grade) Charging system, RR DEF, ABS/
VSC No.2, HEATER, ABS/VSC
No.1, RDI FAN, WASHER,

S-HORN
9 STOP No.3 7.5 A Electronic controlled transmission
system, multiport fuel injection
system/sequential multiport fuel
injection system
10 INJ 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
11 AM2 7.5 A Starter system
12 DOOR No.1 25 A Multiplex communication system
13 ALT-S 7.5 A Charging system
14 ETCS 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
15 IG2 25 A Multiport fuel injection system/
sequential multiport fuel injection
system, electronic controlled
transmission system
16 TURN/HAZ 15 A Turn signal lights
17 AMP 30 A Audio system
18 FEI No.3 7.5 A Smart key system, electronic con-
trolled transmission system, immo-
bilizer system
19 STR LOCK 25 A Steering lock system
20 STOP No.1 15 A Multiplex communication system

348 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
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 RADAR CC 7.5 A Vehicle stability control system
34 HEAD RH LWR 15 A Right-hand headlight (low beam)
35 HEAD LH LWR 15 A Left-hand headlight (low beam)

4
Maintenance and care
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4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
■
Driver’s side instrument panel
FuseAmpereCircuit
1RR DOOR25 APower window
2RL DOOR25 APower window
3FR DOOR25 APower window, driving position
memory system
4FOG15 AFront fog lights
5OBD7.5 AOn-board diagnosis system
6MPX-B7.5 AMultiplex communication system
7P/W25 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
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350 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
FuseAmpereCircuit
11S-HTR20 AAir conditioning system
12DOOR No.225 AMultiplex communication system
13S/ROOF30 AMoon roof
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, dynamic
laser cruise control 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