Fuel systems TOYOTA SEQUOIA 2001 Service User Guide

05_SEQUOIA_U (L/O 0408)
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2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
The three±way catalytic converter is an
emission control device installed in the
exhaust system.
The purpose is to reduce pollutants in the
exhaust gas.
CAUTION

Keep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.

Do not idle or park your vehicle
over anything that might burn easi-
ly such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases
flowing into the three±way catalytic
converter may cause it to overheat
and create a fire hazard. To prevent
this and other damage, observe the
following precautions:

Use only unleaded gasoline.

Do not drive with an extremely low
fuel level; running out of fuel could
cause the engine to misfire, creat-
ing an excessive load on the three±
way catalytic converter.

Do not allow the engine to run at
idle speed for more than 20 min-
utes.

Avoid racing the engine.

Do not push±start or pull±start your
vehicle.

Do not turn off the ignition while
the vehicle is moving.

Keep your engine in good running
order. Malfunctions in the engine
electrical system, electronic ignition
system/distributor ignition system
or fuel systems could cause an ex-
tremely high three±way catalytic
converter temperature.

If the engine becomes difficult to
start or stalls frequently, take your
vehicle in for a check±up as soon
as possible. Remember, your Toyota
dealer knows your vehicle and its
three±way catalytic converter sys-
tem best.

To ensure that the three±way cata-
lytic converter and the entire emis-
sion control system operate proper-
ly, your vehicle must receive the
periodic inspections required by the
Toyota Maintenance Schedule. For
scheduled maintenance information,
refer to the ªScheduled Maintenance
Guideº or ªOwner 's Manual Supple-
mentº.
Three±way catalytic converters

05_SEQUOIA_U (L/O 0408)
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2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
38. IGN 2 20 A: Starting system
39. PWR NO.3 20 A: Rear passenger 's
power window (right side)
40. PWR NO.4 20 A: Rear passenger 's
power window (left side)
41. CIG 15 A: Air conditioning systems,
power rear view mirror control, ciga-
rette lighter
42. RAD NO.2 7.5 A: Audio/video system,
power outlets, multiplex communication
system (power door lock system, secu-
rity system, auto±door locking system,
automatic light control system, head-
light delay off system, tail light auto
cut system, illuminated entry system,
daytime running light system)
43. 4WD 20 A: A.D.D. control system,
four±wheel drive system
44. STOP 15 A: Stoplights, high±mounted
stoplights, multiport fuel injection sys-
tem/sequential multiport fuel injection
system, vehicle stability control system,
traction control system (two±wheel
drive models), active traction control
system (four±wheel drive models), mul-
tiplex communication system
45. OBD 7.5 A: On±board diagnosis sys-
tem46. PANEL 7.5 A: Instrument panel lights,
glove box light, seat heaters, cigarette
lighter, ashtrays, multi±information dis-
play, audio/video system, gauge and
meters, air conditioning systems
47. PWR NO.1 25 A: Driver 's door lock
system
48. WIP 25 A: Wiper and washers
49. IGN 1 10 A: Charging system
50. SUN ROOF 25 A: Electric moon roof
51. PWR NO.2 25 A: Front passengers'
door lock system
52. HTR 10 A: Air conditioning systems,
electric cooling fan, back window de-
fogger, outside rear view mirror heater
53. FOG 15 A: Front fog lights
54. GAUGE 15 A: Back±up lights, seat
heaters, gauge and meters, air condi-
tioning systems
55. PWR OUTLET 15 A: Power outlets
56. SEAT HTR 15 A: Seat heatersFuses (type B)
57. MAIN 40 A: Starting system, ªH±LP
RHº, ªH±LP LHº and ªSTAº fuses
58. DOOR NO.2 30 A: Multiplex commu-
nication system (power door lock sys-
tem, security system, auto±door locking
system)
59. PWR SEAT 30 A: Power seats
60. AM1 40 A: ªHTRº, ªCIGº, ªGAUGEº,
ªRAD NO.2º, ªECU±IGº, ªWIPº, ªWSHº
and ª4WDº fuses
61. PWR NO.5 30 A: Power door lock sys-
tem, back door lock system
Fuses (type C)
62. RR HEATER 30 A: Rear air condition-
ing system
63. DEFOG 40 A: Back window defogger
64. HEATER 50 A: Front air conditioning
system
65. AIR SUS 50 A: Rear height control air
suspension system
66. TOWING R/B 60 A: Trailer brake con-
troller, trailer lights (tail lights), trailer
sub battery