2011 TOYOTA CAMRY ECU

415
4-3. Do-it-yourself maintenance
4
Maintenance and care
25 EFI MAIN
30 AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.2, EFI NO.3, main
body ECU
26 AMP 25 A Audio system
27 DOOR NO.1 25 A Main body ECU
28 RADIO NO.1 15 A Audio system, navigation system
29 ECU-B NO.1 10 A Wireless remote control system,
front passenger occupant classifi-
cation system, main body ECU
30 DOME 10 AGauges and meters, trunk light,
engine switch light, door courtesy
lights, interior light, personal lights,
clock, smart key system
31 H-LP(LH) 15 A Left-hand headlight (high beam)
32 H-LP(RH) 15 A Right-hand headlight (high beam)
33 H-LP(LL) 15 A Left-hand headlight (low beam)
34 H-LP(RL) 15 A Right-hand headlight (low beam)
35 HORN 10 A Horns
36 EFI NO.1 10 ASmart key system, multiport fuel
injection system/sequential multi-
port fuel injection system, main
body ECU
37 MPX-B 10 A Gauges and meters
38 A/F 20 A No circuit
39 S-HORN 7.5 A Horns
40 EFI NO.2 15 AMultiport fuel injection system/
sequential multiport fuel injection
system
41 EFI NO.3 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
14 ALT
120 ARR FOG, FR DEF, HTR, ABS
NO.1, FAN MAIN, ABS NO.2, RR
DEF, RR PWR SEAT, H- LP CLN,
CDS FAN, RDI FAN, MSB, TAIL,
PANEL, FR FOG, CIG, RADIO
No.2, ECU-ACC, PWR OUTLET,
GAUGE No.1, ECU IG No.1, ECU
IG No.2, H-LP LVL, WASH, A/C
No.2, S-HTR, WIP, P/SEAT, DOOR
No.2, POWER, RR DOOR LH, RR
DOOR RH, ECU-B No.2, OBD,
FUEL OPN, PWR, STOP, S/ROOF,
TI&TE, A/C, AM1
15 STR LOCK 20 A Steering lock system
16 IG2 20 AMultiport fuel injection system/
sequential multiport fuel injection
system, starting system, GAUGE
NO.2, IGN, INJ
17 HAZ 15 ATurn signal lights, gauge and
meters
18 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
19 E-ACM 10 A No circuit
20 MAYDAY/TEL 7.5 A No circuit
21 ALT-S 7.5 A Charging system
22 AM2 7.5 A Main body ECU
23 EFI MAIN 30 AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.2, EFI NO.3
24 AMP 25 A Audio system
25 DOOR NO.1 25 A Main body ECU
26 RADIO NO.1 15 A Audio system, navigation system
FuseAmpereCircuit

418 4-3. Do-it-yourself maintenance
27 ECU-B NO.1 10 AWireless remote control system,
front passenger occupant classifi-
cation system, main body ECU
28 DOME 10 A Gauges and meters, vanity lights,
trunk light, engine switch light, door
courtesy lights, interior light, per-
sonal lights, clock, smart key sys-
tem
29 H-LP(LH) 15 A Left-hand headlight (high beam)
30 H-LP(RH) 15 A Right-hand headlight (high beam)
31 H-LP(LL) 15 A Left-hand headlight (low beam)
32 H-LP(RL) 15 A Right-hand headlight (low beam)
33 HORN 10 A Horns
34 EFI NO.1 10 A Smart key system, multiport fuel
injection system/sequential multi-
port fuel injection system, main
body ECU
35 MPX-B 10 A Gauges and meters
36 A/F 20 A Multiport fuel injection system/
sequential multiport fuel injection
system
37 S-HORN 7.5 A Horns
38 EFI NO.2 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
39 EFI NO.3 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

419
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 RR DOOR RH 25 A Rear right power window
2 RR DOOR LH 25 A Rear left power window
3 FUEL OPN 7.5 A No circuit
4 FR FOG 15 A Front fog lights
5 OBD 7.5 A On-board diagnosis system
6 ECU-B NO.2 7.5 A Power windows
7 STOP 10 A High mounted stoplight, shift lock
control system, multiport fuel injec-
tion system/sequential multiport
fuel injection system, main body
ECU, anti-lock brake system, vehi-
cle stability control system, traction
control system, brake assist sys-
tem
8 TI&TE 30 A No circuit
9 AM1 7.5 A Multiport fuel injection system/
sequential multiport fuel injection
system
10 A/C 7.5 A Air conditioning system

420 4-3. Do-it-yourself maintenance
11 PWR25 A Power windows
12 DOOR NO.2 25 A Main body ECU
13 S/ROOF 30 A Moon roof
14 TAIL 15 AFront side marker/parking lights,
stop/tail lights, rear side marker
lights, license plate lights, back-up
lights, front turn signal lights, main
body ECU
15 PANEL 7.5 ANavigation system, seat heaters,
emergency flashers, air condition-
ing system, audio system, clock,
glove box light, instrument panel
lights, steering switches, vehicle
stability control system, traction
control system
16 ECU IG NO.1 10 A Main body ECU, windshield wipers
and washer, moon roof, tire pres-
sure warning system, electric cool-
ing fans, auto anti-glare inside rear
view mirror, navigation system
17 ECU IG NO.2 7.5 A Anti-lock brake system, vehicle sta-
bility control system, traction con-
trol system, brake assist system,
shift lock control system, auto-
matic transmission, cruise control
system
18 A/C NO.2 10 AAir conditioning system, rear win-
dow defogger
19 WASH 10 A Windshield wipers and washer
20 S-HTR 20 A Seat heaters
21 GAUGE NO.1 10 A Emergency flashers, charging sys-
tem, multiport fuel injection system/
sequential multiport fuel injection
system, back-up lights
FuseAmpereCircuit

421
4-3. Do-it-yourself maintenance
4
Maintenance and care
22 WIP
25 A Windshield wipers and washer
23 H-LP LVL 7.5 A No circuit
24 INJ 15 A No circuit
25 IGN 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, steer-
ing lock system, front passenger
occupant classification system,
smart key system, electronic throt-
tle control system
26 GAUGE NO.2 7.5 A Gauges and meters, multi-informa-
tion display, clock
27 ECU-ACC 7.5 A Clock, main body ECU, shift lock
control system, outside rear view
mirror, smart key system
28 CIG 20 A No circuit
29 PWR OUTLET 20 A Power outlet
30 RADIO NO.2 7.5 A Audio system, navigation system
31 MIR HTR 10 A Outside rear view mirror defoggers
32 POWER 30 A Power windows
33 P/SEAT 30 A Power seats
■ After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacing. ( P. 423)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
FuseAmpereCircuit

426 4-3. Do-it-yourself maintenance
■Condensation build-up on th e inside of the lens
Contact your Toyota dealer for more information in the following situations.
Temporary condensation build-up on the inside of the headlight lens does
not indicate a malfunction.
● Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
■ LED stop/tail lights and high mounted stoplight
The stop/tail lights and high mounted stoplight consist of a number of LEDs.
If any of the LEDs burn out, take your vehicle to your Toyota dealer to have
the light replaced.
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.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

438 5-2. Steps to take in an emergency
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
•ABS; or
• The brake assist system.
(Flashing) Cruise control indicator light
Indicates a malfunction in the cruise control system
P. 170
Slip indicator light
Indicates a malfunction in:
• VSC system; or
• TRAC system.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
Warning lightWarning light/Details