Page 383 of 512

3836-3. Do-it-yourself maintenance
6
Maintenance and care
AVALON_HV_U (OM41451U)7 HTR 50 A Air conditioning system
8 DC/DC 120 A Hybrid system
9 ABS NO.1 30 A Electronically controlled brake system
10 H-LP-MAIN 30 A H-LP LH-LO, H-LP RH-LO, headlight
(low beam)
11 ABS MTR NO.2 50 A Electronically controlled brake system
12 ABS MTR NO.1 50 A Electronically controlled brake system
13 R/B NO.2 50 A IGCT-MAIN, INV W/PMP
14 EPS 80 A Electric power steering
15 S-HORN 7.5 A S-HORN
16 DEICER 15 A No circuit
17 HORN 10 A Horns
18 EFI NO.2 15 A Multiport fuel injection system/sequential
multiport fuel injection system, electroni-
cally controlled brake system
19 EFI NO.3 7.5 A Multiport fuel injection system/sequential
multiport fuel injection system
20 INJ 7.5 A Multiport fuel injection system/sequential
multiport fuel injection system
21 ECU-IG2 NO.3 7.5 A Multiport fuel injection system/sequential
multiport fuel injection system, steering
lock system, hybrid system, stop lights,
high-mounted stop light
22 IGN 15 A Starter system
23 D/L-AM2 20 A No circuit
24 IG2-MAIN 25 A IGN, INJ, METER-IG2, ECU-IG2 NO.3,
A/B, ECU-IG2 NO.2, ECU-IG2 NO.1
25 DC/DC-S 7.5 A Hybrid system
26 MAYDAY 5 A MAYDAY
27 TURN&HAZ 15 A Turn signal lights, emergency flashers,
gauge and meters, outside rear view mir-
rors
28 STRG LOCK 10 A Steering lock system
FuseAmpereCircuit
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3846-3. Do-it-yourself maintenance
AVALON_HV_U (OM41451U)
*1:Vehicles with halogen headlight
*2:Vehicles with discharge headlight
29 AMP 15 A Audio system
30 H-LP LH-LO
15 A*1
Left-hand headlight (low beam)20 A*2
31 H-LP RH-LO15 A*1
Right-hand headlight (low beam)20 A*2
32 MNL H-LP LVL*27.5 A No circuit
33 EFI-MAIN NO.1 30 A Multiport fuel injection system/sequential
multiport fuel injection system
34 SMART 5 A Smart key system
35 ETCS 10 A Electronic throttle control system
36 ABS NO.2 7.5 A Electronically controlled brake system
37 EFI NO.1 7.5 A Multiport fuel injection system/sequential
multiport fuel injection system
38 EFI-MAIN NO.2 20 A A/F sensor
39 AM2
7.5 A Hybrid system
40 RADIO-B 20 A Audio system, navigation system
41 DOME7.5 AVanity lights, interior lights, personal
lights, trunk light, door courtesy lights,
illuminated entry system,
ambient light
42 ECU-B NO.1 10 A Smart key system, gauge and meters,
steering sensor, air conditioning system,
outside rear view mirror, front power
seats, multiplex communication system,
starter system
43 SPARE
25 A Spare fuse
44SPARE30 ASpare fuse
FuseAmpereCircuit
Page 386 of 512
3866-3. Do-it-yourself maintenance
AVALON_HV_U (OM41451U)■
Driver’s side instrument panel
FuseAmpereCircuit
1 H-LP LVL 7.5 A Automatic headlight leveling system
2 S/HTR RR 20 A Rear seat heater
3 ECU-ACC 5 A Air conditioning system, outside rear
view mirrors, multiplex communication
system, glove box light
4 RR P/OUTLET 15 A Power outlet
5 ECU-IG2 NO.2 7.5 A Smart key system, electronically con-
trolled brake system
6 ECU-IG2 NO.1 7.5 A Hybrid system
7 A/B 10 A Front passenger occupant classification
system, SRS airbag system
8 FUEL DR LOCK 10 A Fuel filler door lock
9 D/L-AM1 20 A Multiplex communication system, power
door lock, trunk opener switch
10 PSB 30 A Pre-collision system 11 P/SEAT FR 30 A Power seats
12 S/ROOF 10 A Moon roof
13 A/C-B 7.5 A Air conditioning system
Page 387 of 512

3876-3. Do-it-yourself maintenance
6
Maintenance and care
AVALON_HV_U (OM41451U)14 STOP 7.5 A
Stop/tail lights, electronically controlled
brake system, high mounted stoplight,
shift lock control system, hybrid system,
Vehicle Proximity Notification System,
dynamic radar cruise control, pre-colli-
sion system
15 AM1 7.5 A No circuit
16 4-WAY LUMBAR 7.5 A Power seat
17 ECU-B NO.2 10 A Smart key system, tire pressure warning
system, power window, front passenger
occupant classification system
18 OBD 10 A On-board diagnosis system
19 S/HTR&FAN F/L 10 A Seat heaters
20 S/HTR&FAN F/R 10 A Seat heaters
21 RADIO-ACC 5 A Audio system, navigation system
22 FR P/OUTLET 15 A Power outlet
23 WIPER-S 10 A Dynamic radar cruise control, pre-colli-
sion system
24 EPS-IG1 7.5 A Electric power steering
25 BKUP LP 7.5 A Multiport fuel injection system/sequential
multiport fuel injection system, electronic
controlled transmission
26 WIPER 25 A Windshield wipers and washer
27 A/C-IG1 7.5 A Air conditioning system, PTC heater
28 WASHER 10 A Windshield wipers and washer
29 DOOR R/L 20 A Rear left-hand power windows
30 DOOR F/L 20 A Power windows, outside rear view mir-
rors
31 DOOR R/R 20 A Rear right-hand power windows
32 DOOR F/R 20 A Power windows, outside rear view mir-
rors
33 TAIL 10 A Parking lights, side marker lights, stop/tail
lights, rear turn signal lights, back up
lights, license plate lights, fog lights
FuseAmpereCircuit
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3886-3. Do-it-yourself maintenance
AVALON_HV_U (OM41451U)34 PANEL 10 A
Switch illumination, air conditioning sys-
tem, rear sunshade, seat heater, Blind
Spot Monitor, driving mode select switch,
steering wheel switch, ambient light, seat
ventilators, trunk opener switch, vehicle
stability control off switch, emergency
flashers, outside rear view mirrors, audio
system, navigation system
35 ECU-IG1 NO.1 10 A Electric cooling fans, steering sensor,
windshield wipers and washer, rear sun-
shade, seat heater, multiport fuel injec-
tion system/sequential multiport fuel
injection system, daytime running lights,
Blind Spot Monitor, charging system,
headlight (high beam), rear window
defogger, back up lights, outside rear
view mirror defoggers, fog lights, elec-
tronically controlled brake system, Vehi-
cle Proximity Notification System,
dynamic radar cruise control, pre-colli-
sion system
36 ECU-IG1 NO.2 10 A Shift lock control system, seat heaters,
seat ventilators, smart key system, tire
pressure warning system, wireless
remote control, multiplex communication
system, audio system, navigation sys-
tem, moon roof, auto anti-glare inside
rear view mirror, outside rear view mir-
rors, pre-collision system, dynamic radar
cruise control, air conditioning controls,
rain-sensing windshield wipers, starting
system
FuseAmpereCircuit
Page 412 of 512

4127-2. Steps to take in an emergency
AVALON_HV_U (OM41451U)
The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Brake system warning buzzer:
When there is a possible problem that could affect braking performance,
the warning light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer:
Parking brake engaged warning buzzer: The buzzer sounds to indicate
that the parking brake is still engaged (with the vehicle having reached a
speed of 3 mph [5 km/h]).
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following acti ons if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.
Warning lightWarning light/Details
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Page 413 of 512

4137-2. Steps to take in an emergency
7
When trouble arises
AVALON_HV_U (OM41451U)
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Im mediately stop the vehicle in a
safe place and contact your Toyota dealer.
Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle ins pected by your Toyota dealer immediately.
Stop the vehicle immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Malfunction indicator lampIndicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The hybrid transmission control system
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
ABS warning lightIndicates a malfunction in:
• The ABS; or
• The brake assist system
Electric power steering system warning light (warning
buzzer)Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
Page 414 of 512

4147-2. Steps to take in an emergency
AVALON_HV_U (OM41451U)
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
(Flashes)
(If equipped)
“PCS” warning light Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operating. (P. 245)
• The light will turn on when the pre-collision system is disabled. ( P. 246)
• The light will flash when the system cannot temporarily be used.
Slip indicatorIndicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
The light will flash when the ABS, the VSC, the TRAC or
the hill-start assist control system is operating.
Brake system warning light Indicates a malfunction in:
• The electronically controlled brake system; or
• The regenerative braking system
(Flashes)
(If equipped)
Automatic High Beam indicator light Indicates a malfunction in the Automatic High Beam sys-
tem.
Follow the correction procedures.
Warning lightWarning light/Details
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or the
trunk is not fully closed
Check that all the doors and
the trunk are closed.