2003 TOYOTA 4RUNNER traction control

’03 4Runner_U (L/O 0305)
356
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Engine compartment
Fuses (type A)
1. SPARE 10 A: Spare fuse
2. SPARE 15 A: Spare fuse
3. STOP 10 A: Stop/tail lights, high
mounted stoplight, shift lock control
system, antilock brake system, trac-
tion control system (twowheel drive
models), active traction control system
(fourwheel drive models), vehicle sta-
bility control system, rear height control
air suspension, multiport fuel injection
system/s equential multiport fuel injec-
tion system, trailer brake controller,
trailer lights (tail lights)
Tires
Tire size Tire pressure
kPa (kgf/cm2 or bar, psi)
Front Rear
P265/70R16 111S
P265/65R17 110S 220 (2.2, 32) 220 (2.2, 32)
220 (2.2, 32) 220 (2.2, 32) Wheel size
16 7J
∗
1
16 7JJ∗
2
17 71/2JJ
Tire size, pressure and wheel size:
∗
1: Vehicles with steel wheels∗2: Vehicles with aluminum wheels
NOTE: For a complete information on tires (e.g. replacing tires or replacing wheels), see “Checking tire pressure” through “Aluminum wheel precau-
tions”, pages 332 through 337 in Section 72.
Wheel nut torque, N·m (kgf·m, ft·lbf): 11 0 ( 11 . 5 , 8 3 )
Fuses

’03 4Runner_U (L/O 0305)
357
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Instrument panel
4. AC115V INV 15 A: AC inverter
5. FR FOG 15 A: Front fog lights
6. OBD 7.5 A: Onboard diagnosis sys-
tem
7. HEAD (LO RH) 10 A: Righthand headlight (low beam)
8. HEAD (LO LH) 10 A: Lefthand head-
light (low beam)
9. HEAD (HI RH) 10 A: Righthand head- light (high beam)
10. HEAD (HI LH) 10 A: Lefthand head- light (high beam) 11. EFI NO.2 10 A:
Multiport fuel injection
system/s equential multiport fuel injec-
tion system
12. HEATER NO.2 7.5 A: Air conditioning
system
13. AIRSUS NO.2 10 A: Rear height con-
trol air suspension
14. SEAT HEATER 25 A: Seat heaters
15. DEFOG 30 A: Rear window defogger,
multiport fuel injection system/sequen-
tial multiport fuel injection system
16. MIR HEATER 10 A: Outside rear view
mirror heater
17. DOME 10 A: Interior light, personal
lights, wireless remote control system,
door courtesy lights, rear seat audio
system, g auge and meter, vanity lights,
instrument panel lights, running board
lights, multiplex communication system
18. RADIO NO.1 20 A: Audio system, nav-
igation system
19. ECUB 10 A: Antilock brake system,
navigation system, traction control sys-
tem (twowheel drive models), active
traction control system (fourwheel
drive models), vehicle stab ility control
system, air c onditioning system, multi-
plex communication system, theft deter-
rent system 20. ALTS 7.5 A:
Charging system
21. HORN 10 A: Horns
22. A/F HEATER 15 A: No circuit
23. TRNHAZ 15 A: Turn signal lights,
emergency flashers
24. ETCS 10 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system
25. EFI 20 A: Multiport fuel injection sys-
tem/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. IGN 10 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, antilock brake system, trac-
tion control system (twowheel drive
models), active traction control system
(fourwheel drive models), vehicle sta-
bility control system, stop light, meter
and gauge
30. SRS 10 A: SRS airbag system
31. GAUGE 7.5 A: Meter and gauge
32. STA NO.2 7.5 A: Multiport fuel injec-
tion system/sequential multiport fuel in-
jection system

’03 4Runner_U (L/O 0305)
358
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
33. FR WIPWSH 30 A: Windshield wipers
and washer
34. 4WD 20 A: Fourwheel drive control
system
35. D P/SEAT 30 A: Driver ’s power seat
36. P P/SEAT 30 A: Front passenger ’s
power seat
37. PWR OUTLET 15 A: Power outlets
38. RR WSH 15 A: Rear window washer,
multiplex communication system
39. ECUIG 10 A: Shift lock control sys-
tem, power windows, antilock brake
system, traction control system (two
wheel drive models), active traction
control system (fourwheel drive mod-
els), vehicle stability control system,
electric moon roof, multiplex commu-
nication system, theft deterrent system,
rear height control air suspension 40. IG1 15 A:
Antilock brake system,
traction control system (twowheel
drive models), active traction control
system (fourw heel drive models), ve-
hicle stability control system, air c ondi-
tioning system, charging system, rear
window defogger, backup lights, turn
signal lights, emergency flashers, seat
heaters, AC inverter, instrument panel
light control, auto antiglare inside rear
view mirror, SRS airbag system
41. STA 7.5 A: No circuit
42. SECU/HORN 10 A: Theft deterrent sys-
tem
43. TAIL 10 A: Tail lights, license plate
lights, parking lights, instrument panel
light control, multiport fuel injection
system/s equential multiport fuel injec-
tion system, instrument panel lights,
meter and gauge, grove box light
44. ACC 7.5 A: Power outlets, outside rear
view mirrors, audio system, navigation
system, rear seat audio system, shift
lock control system, instrument panel
lights
45. CIG 10 A: No circuit Fuses (type B)
46. HEATER 50 A: Air conditioning system
47. AIRSUS 50 A: Rear height control air
suspension
48. AM1 50 A: All components in “ACC”,
“CIG”, “IG1”, “ECUIG”, “FR WIP
WSH”, “RR WIP”, “RRWSH”, “4WD”,
and “STA” fuses
49. TOWING BRK 30 A: Trailer brake con-
troller
50. J/B 50 A: All components in “PWR
OUTLET”, “D P/SEAT”, “P P/SEAT”,
“POWER”, “TAIL” and “SECU/HORN”
fuses
51. BATT CHG 30 A: Trailer sub battery
52. TOWING 40 A: Trailer lights (tail
lights)
53. ABS MTR 40 A: Antilock brake sys-
tem, traction control system (twowheel
drive models), active traction control
system (fourw heel drive models), ve-
hicle stability control system
54. AM2 30 A: Starter system, “IGN”,
“GAUGE”, “STA NO.2” and “SRS” fuses

’03 4Runner_U (L/O 0305)
359
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
55. ABS SOL 50 A: Antilock brake sys-
tem, traction control system (twowheel
drive models), active traction control
system (fourw heel drive models), ve-
hicle stability control system
56. POWER 30 A: Power windows, electric
moon roof
Fuses (type C)
57. ALT 140 A: All components in “AM2”,
“ALTS”, “DR/LCK”, “TRNHAZ”,
“HORN”, “RADIO NO.2”, “EFI”,
“TOWING”, “ABS MTR”, “ABS SOL”
and “ETCS” fuses

’03 4Runner_U (L/O 0305)
363
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Treadwear—The treadwear grade is a
comparative rating based on the wear rate
of the tire when tested under controlled
conditions on a specified government test
course. For example, a tire graded 150
would wear one and a half (11/2) times
as well on the government course as a
tire graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may de-
part significantly from the norm due to
variations in driving habits, service prac-
tices and differences in road characteris-
tics and climate.
Traction AA, A, B, C— The traction
grades, from highest to lowest, are AA, A,
B, and C, and they represent the tire’s
ability to stop on wet pavement as mea-
sured under controlled conditions on spe-
cified government test surfaces of asphalt
and concrete. A tire marked C may have
poor traction performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction. Temperature A, B, C—
The temperature
grades are A (the highest), B, and C,
representing the tire’s resistance to the
generation of heat and its ability to dissi-
pate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature
can cause the material of the tire to de-
generate and reduce tire life, and exces-
sive temperature can lead to sudden tire
failure. The grade C corresponds to a lev-
el of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No.109. Grades B
and A represent higher levels of perfor-
mance on the laboratory test wheel than
the minimum required by law.
Warning: The temperature grades for this
tire are established for a tire that is prop-
erly inflated and not overloaded. Exces-
sive speed, underinflation, or excessive
loading, either separately or in combina-
tion, can cause heat buildup and possible
tire failure.