TOYOTA 4RUNNER 2011 N280 / 5.G Owners Manual

531
4-3. Do-it-yourself maintenance
4
Maintenance and care
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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.
Vehicles without a smart key system
Turn the engine switch off.
Vehicles with a smart key system
Turn the “ENGINE START STOP” switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Driver’s side instrument panel Remove the lid.STEP 1
STEP 2
CTH43AS123
CTH43AS028

532 4-3. Do-it-yourself maintenance
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After a system failure, see “Fuse layout and amperage rat-
ings” (P. 535) for details about which fuse to check.
Remove the fuse.
Only type A fuse can be
removed using the pull-out
tool.
Check if the fuse is blown.
Ty p e A
Normal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
STEP 3
STEP 4
CTH43AS029
STEP 5
CTH43AS030
CTH43AS031

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Maintenance and care
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Ty p e C
Normal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e DNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e ENormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
CTH43AS073
CTH43AS074
CTH43AS075

534 4-3. Do-it-yourself maintenance
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Ty p e FNormal fuse
Blown fuse
Contact your Toyota dealer.
CTH43AS076

535
4-3. Do-it-yourself maintenance
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Maintenance and care
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Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1PTC HTR NO.330 A
PTC heater
2DEF30 ARear window defogger
3DEICER 20 A
Windshield wiper de-icer
4PTC HTR NO.230 APTC heater
5SUB BATT30 ATrailer sub battery
6PTC HTR NO.150 A
PTC heater
7MIR HTR10 AOutside rear view mirror defog-
gers
8TOWING TAIL30 A
Trailer tail light
9A/C COMP10 AAir conditioning system
10STOP10 A
Stop/tail lights
11IG220 AINJ, IGN, GAUGE fuses
12HORN10 AHorn(s)
13EFI 25 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
14A/F20 A
A/F sensor
CTH43AS079

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15H-LP RH-HI10 ARight-hand headlight (high
beam)
16H-LP LH-HI10 ALeft-hand headlight (high
beam)
17HTR50 A
Air conditioning system
18400W INV 80 APower outlets
19ST30 AStarter system
20H-LP HI20 A
H-LP RH-HI, H-LP LH-HI fuses
21ALT-S7.5 A Charging system
22TURN&HAZ15 ATurn signal lights, emergency
flashers
23ETCS10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
24TOWING30 A
Trailer stop/turn lights
25SHORT PIN 
No circuit
26RAD NO.1 10 A Audio system
27AM27.5 A Starter system
28MAYDAY 7.5 ASafety connect
29AMP30 A
Audio system
30ABS NO.150 AABS, VSC
31ABS NO.230 AABS, VSC
32AIR PMP50 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
33DOME10 A
Interior lights, vanity lights
34ECU-B10 AMultiplex communication sys-
tem, meter and gauge
35H-LP RH-LO10 ARight-hand headlight (low
beam)
36H-LP LH-LO10 A
Left-hand headlight (low beam)
37INJ10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
FuseAmpereCircuit

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Maintenance and care
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*: Replace the fuse with one of th
e same ampere rating as the origi-
nal
38EFI NO.27.5 A Multiport fuel injection system/
sequential multiport fuel injec-
tion system
39ALT
120 A* HTR, 400W INV, A/C COMP,
TOWING TAIL, SUB BATT,
MIR HTR, DEF, DEICER,
STOP, PTC HTR NO.1, PTC
HTR NO.2, PTC HTR NO.3,
S/HTR FR, ACC, P/OUTLET,
IG1, ECU-IG NO.1, ECU-IG
NO.2, WIP, WASHER, KDSS,
4WD, BKUP LP, TOWING
BKUP, DOOR P, DOOR RL,
DOOR RR, DOOR D, P/SEAT
FL, P/SEAT FR, DOOR, A/C,
OBD, DOOR BACK, S/ROOF,
PANEL, TAIL, FOG FR, D/L
NO.2 fuses
140 A*
40SPARE10 A

41SPARE15 A
42SPARE20 A
43P/I-B80 A
IG2, EFI, A/F, HORN fuses
44SECURITY10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
45SMART 7.5 A
Smart key system
46STRG LOCK 20 ASteering lock system
47TOWING BRK30 A
Trailer brake controller
FuseAmpereCircuit

538 4-3. Do-it-yourself maintenance
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Driver’s side instrument panel
FuseAmpereCircuit
1TA I L10 A Stop/tail lights
2PA N E L7.5 A Instrument panel lights
3GAUGE7.5 A Meter and gauge
4IGN10 A Multiport fuel injection system/
sequential multiport fuel injec-
tion system, air bag system,
smart key system
5WASHER20 A Wiper and washer
6WIP30 A Wiper and washer
7S/ROOF 25 A Electric moon roof
8DOOR RR25 A Power windows
9DOOR D25 A Power windows
10DOOR BACK30 A
Multiplex communication sys-
tem
11DOOR P30 A Power windows
12P/SEAT FR 30 A Front passenger's power seat
13S/HTR FR 20 A Seat heater system
14ECU-IG NO.210 AAir conditioning system, multi-
port fuel injection system/
sequential multiport fuel injec-
tion system
15IG17.5 A
Turn signal lights, emergency
flashers
16ECU-IG NO.110 AVehicle stability control sys-
tem, tire pressure warning sys-
tem, steering sensor
17DOOR7.5 A Power windows

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Maintenance and care
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18DOOR RL25 A Power windows
19AM17.5 A Starter system
20A/C7.5 A Air conditioning system
21OBD7.5 A On-Board diagnosis
22FOG FR 15 A Fog lights
23D/L NO.225 A
Multiplex communication sys-
tem
24P/SEAT FL30 A Front driver’s power seat
254WD 20 A Four wheel drive system
26KDSS 10 AKinetic dynamic suspension
system
27TOWING BKUP10 A Trailer back-up lights
28BKUP LP10 A Back-up lights
29ACC7.5 A Multiport fuel injection system/
sequential multiport fuel injec-
tion system
30P/OUTLET15 A Power outlets
FuseAmpereCircuit

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■After a fuse is replaced
● If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. (P. 541)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in a circuit
The fuses are designed to blow before the entire wiring harness is damaged.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage, and possibly a fire or injury.
● Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.