2009 TOYOTA 4RUNNER maintenance

405
4-3. Do-it-yourself maintenance
4
Maintenance and care
After a system failure, see “Fuse layout and amperage rat-
ings” (
P. 407) for details about which fuse to check.
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.

406 4-3. Do-it-yourself maintenance
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.
Ty p e CNormal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid

407
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1 SPARE 10 A Spare fuse
2 SPARE 15 A Spare fuse
3 STOP 10 A Stop/tail lights, high mounted stop-
light, shift lock control system, anti-
lock brake system, traction control
system (2WD models), active trac-
tion control system (4WD models),
vehicle stability control system,
rear height control air suspension,
multiport fuel injection system/
sequential multiport fuel injection
system, trailer brake controller,
trailer lights (tail lights)
4 AC 115V INV 15 A AC inverter
5 FR FOG 15 A Front fog lights
6 OBD 7.5 A On-board diagnosis system
7 HEAD (LO RH) 10 A Right-hand headlight (low beam)
8 HEAD (LO LH) 10 A Left-hand headlight (low beam)

408 4-3. Do-it-yourself maintenance
9 HEAD (HI RH) 10 A Right-hand headlight (high beam)
10 HEAD (HI LH) 10 A Left-hand headlight (high beam)
11 EFI NO.2 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
12 HEATER NO.2 7.5 A Air conditioning system
13 AIRSUS NO.2 10 A Rear height control air suspension
14 SEAT HEATER 25 A Seat heaters
15 DEFOG 30 A Back window defogger, multiport
fuel injection system/sequential
multiport fuel infection system
16 MIR HEATER 10 A Outside rear view mirror heater
17 DOME 10 A Interior light, personal lights, wire-
less remote control system, door
courtesy lights, gauge and meter,
vanity lights, instrument panel
lights, running board lights, multi-
plex communication system
18 RADIO NO.1 20 A Audio system, navigation system,
rear seat entertainment system
19 ECU-B 10 A Anti-lock brake system, traction
control system (2WD models),
active traction control system (4WD
models), vehicle stability control
system, air conditioning system,
multiplex communication system,
theft deterrent system, driving posi-
tion memory system, front passen-
ger occupant classification system
20 ALT-S 7.5 A Charging system
21 HORN 10 A Horns
22 A/F HEATER 15 A A/F sensor
FuseAmpereCircuit

409
4-3. Do-it-yourself maintenance
4
Maintenance and care
23 TRN-HAZ
15 ATurn signal lights, emergency
flashers
24 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
25 EFI 20 AMultiport fuel injection system/
sequential multiport fuel injection
system
26 DR/LCK 20 A Power door lock system
27 TOWING 30 A Towing converter
28 RADIO NO.2 20 A Audio system
29 A/PUMP 50 AMultiport fuel injection system/
sequential multiport fuel injection
system
30 AIRSUS 50 A Rear height control air suspension
31 AM1 50 AACC, CIG, IG1, ECU-IG, FR WIP-
WSH, RR-WSH, 4WD, and STA
fuses
32 TOWING BRK 30 A Trailer brake controller
33 J/B 50 APWR OUTLET, D P/SEAT, P P/
SEAT, POWER, TAIL, SECU/
HORN fuses
34 BATT CHG 30 A Trailer sub battery
35 TOWING 40 A Trailer lights (tail lights)
36 ABS MTR 40 AAnti-lock brake system, traction
control system (2WD models),
active traction control system (4WD
models), vehicle stability control
system
37 AM2 30 AStarter system, IGN, GAUGE,
STA NO.2, SRS fuses
FuseAmpereCircuit

410 4-3. Do-it-yourself maintenance
38 ABS SOL30 AAnti-lock brake system, traction
control system (2WD models),
active traction control system (4WD
models), vehicle stability control
system
39 ALT 140 AA/PUMP, AIRSUS, AM1, TOWING
BRK, J/B, BATT CHG, TOWING,
TAIL, STOP, AC 115V INV, FR
FOG, OBD, DEFOG, MIR HEATER
fuses
40 HEATER 60 A Air conditioning system
FuseAmpereCircuit

411
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 IGN 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, anti-lock brake system,
traction control system (2WD mod-
els), active traction control system
(4WD models), vehicle stability
control system, meter and gauge,
front passenger occupant classifi-
cation system
2 SRS 10 A SRS airbag system
3 GAUGE 7.5 A Meter and gauge
4 STA NO.2 7.5 A Starting system, multiport fuel
injection system/sequential multi-
port fuel injection system
5 FR WIP-WSH 30 A Windshield wipers and washer
6 4WD 20 A 4WD control system
7 D P/SEAT 30 A Driver’s power seat
8 P P/SEAT 30 A Front passenger’s power seat
9 PWR OUTLET 15 A Power outlets

412 4-3. Do-it-yourself maintenance
10 RR WSH15 ABack window washer, multiplex
communication system
11 ECU-IG 10 AShift lock control system, power
windows, anti-lock brake system,
traction control system (2WD mod-
els), active traction control system
(4WD models), vehicle stability
control system, electric moon roof,
multiplex communication system,
theft deterrent system, rear height
control air suspension, tire pres-
sure warning system, driving posi-
tion memory system
12 IG1 15 AAnti-lock brake system, traction
control system (2WD models),
active traction control system (4WD
models), vehicle stability control
system, air conditioning system,
charging system, back window
defogger, back-up lights, emer-
gency flashers, seat heaters, AC
inverter, instrument panel light con-
trol, auto anti-glare inside rear view
mirror, seat belt tension reducer
13 STA 7.5 A No circuit
14 SECU/HORN 10 A Theft deterrent system
15 TAIL 10 ATail lights, license plate lights, park-
ing lights, instrument panel light
control, multiport fuel injection sys-
tem/sequential multiport fuel injec-
tion system, instrument panel
lights, meter and gauge, glove box
light
FuseAmpereCircuit