2004 TOYOTA TUNDRA air condition

’04 TUNDRA_U (L/O 0309)
403
2004 TUNDRA from Sep. ’03 Prod. (OM34426U)
Doors and engine hood
Check that all doors including tailgate op-
erate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from
opening when the primary latch is re-
leased.
Tire inflation pressure
Check the pressure with a gauge ev-
ery two weeks, or at least once a
month. See Section 7 −2 for additional
information.
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See Sec-
tion 7 −2 for additional information.
When checking the tires, make sure
no nuts are missing, and check the
nuts for looseness. Tighten them if
necessary.
Tire rotation
Rotate the tires according to the
maintenance schedule. (For sched-
uled maintenance information, please
refer to the “Scheduled Maintenance
Guide” or “Owner ’s Manual Supple-
ment”.) See Section 7 −2 for additional
information.
Be on the alert for changes in perfor-
mance, sounds, and visual tip −offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat −looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake or clutch pedal; pedal al-
most touches floor; vehicle pulls to one
side when braking
Engine coolant temperature continually
higher than normal
Engine continually runs hot; oil pres-
sure gauge stays low
If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?

’04 TUNDRA_U (L/O 0309)
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2004 TUNDRA from Sep. ’03 Prod. (OM34426U)
Model:
5VZ− FE and 2UZ −FE
Type: 5VZ− FE engine
6 cylinder V type, 4 cycle, gasoline
2UZ− FE engine
8 cylinder V type, 4 cycle, gasoline
Bore and stroke, mm (in.): 5VZ− FE engine
93.5 82.0 (3.68 3.23)
2UZ− FE engine
94.0 84.0 (3.70 3.31)
Displacement, cm
3 (cu. in.):
5VZ− FE engine 3378 (206.1)
2UZ− FE engine 4664 (284.6)Fuel type:
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher
Fuel tank capacity, L (gal., Imp. gal.): 100 (26.4, 22.0) ENGINE
Valve clearance (engine cold), mm (in.):
5VZ− FE engine
Intake 0.13—0.23 (0.006—0.009)
Exhaust 0.27—0.37 (0.011—0.014)
2UZ− FE engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: 5VZ− FE engine
DENSO K16TR11
NGK BKR5EKB11
2UZ− FE engine
DENSO K20R−U
NGK BKR6EYA
Spark plug gap, mm (in.): 5VZ− FE engine 1.1 (0.043)
2UZ− FE engine 0.8 (0.031)
Drive belt tension measured with Bor-
roughs drive belt tension gauge
No. BT− 33−73F (used belt), lbf:
5VZ− FE engine
Generator belt 100 20
Air conditioning compressor belt 100 20
Power steering pump belt
100
+20
15
Engine FuelService specifications

’04 TUNDRA_U (L/O 0309)
455
2004 TUNDRA from Sep. ’03 Prod. (OM34426U)
9. PWR OUTLET 2 15 A: Power outlet
10. DOME 10 A: Interior light, personal
lights, vanity light, ignition switch light,
step light, door courtesy lights, open
door warning light
11. HLP LH 10 A : Left−hand headlight
(high beam)
12. EFI NO.2 10 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, emission control system
13. RADIO 20 A: Audio system
14. HEAD RL 10 A (with daytime running light system): Right−hand headlight
(low beam)
15. A/C 10 A: Air conditioning system
16. HEAD LL 10 A (with daytime running light system): Left−hand headlight (low
beam)
17. ALTS 7.5 A: Charging system
18. ETCS 10 A (2UZFE engine): Multiport
fuel injection system/sequential multi-
port fuel injection system, electronic
throttle control system
19. HAZ 15 A: Emergency flashers
20. EFI NO.1 20 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, fuel pump, “EFI NO.2”
fuse 21. AM2 30 A:
Ignition system, starting
system, “IGN” and “STA” fuses
22. TOWING 30 A: Towing converter
23. ETCS 15 A (5VZFE engine): Multiport
fuel injection system/sequential multi-
port fuel injection system, electronic
throttle control system
24. WIP 20 A: Windshield wipers and
washer
25. TURN 5 A: Turn signal lights
26. ECU IG 5 A: Anti−lock brake system,
cruise control system
27. 4WD 20 A: Four−wheel drive control
system, A.D.D. control system
28. ACC 15 A: Cigarette lighter, audio sys-
tem, SRS airbag system, power rear
view mirrors, “PWR OUTLET 1” and
“PWR OUTLET 2” fuses
29. GAUGE 10 A: Gauges and meters,
back −up lights, starting system, air
conditioning system
30. IGN 5 A: SRS airbag system, multiport
fuel injection system/sequential multi-
port fuel injection system, discharge
warning light, ignition system
31. CARGO LP 5 A: Cargo lamp 32. TAIL 15 A:
Tail lights, license plate
lights, instrument panel lights, parking
lights, glove box light
33. OBD 7.5 A: On−board diagnosis sys-
tem
34. HORN 10 A: Horns
35. STA 5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, g auges
and meters
36. STOP 15 A: Stoplights, high mounted
stoplight
Fuses (type B)
37. AM1 40 A: Starting system, “ACC”,
“WIP”, “4WD”, “ECU −IG”, “GAUGE” and
“TURN” fuses
38. HTR 50 A: Air conditioning system,
“A/C” fuse
39. J/B 50 A: “POWER”, “CARGO LP”,
“TAIL”, “OBD”, “HORN” and “STOP”
fuses
40. ABS 2 50 A: Anti−lock brake system
41. ABS 3 30 A (without vehicle stab ility
control system) or 50 A (with vehicle
stability control system): Anti−lock
brake system, vehicle stability control
system, traction control system

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2004 TUNDRA from Sep. ’03 Prod. (OM34426U)
42. ST3 30 A: Starting system, “STA” fuse
43. POWER 30 A: Power door lock sys-
tem, power windows, power seat
Fuse (type C)
44. FL ALT 100 A (without towing pack- age) or 140 A (with towing package):
“AM1”, “HTR”, “J/B”, “MIR HTR”,
“FOG”, “TOW BRK”, “SUB BATT”,
“TOW TAIL”, “PWR OUTLET 1” and
“PWR OUTLET 2” fuses
Engine compartment
Fuses (type A)
1. HLP RH 10 A (with daytime running light system): Right−hand headlight
(high beam)
2. HLP LH 10 A (with daytime running light system): Left−hand headlight
(high beam)
3. A/C 7.5 A: Air conditioning system
4. HLP RL 10 A (with daytime running light system): Right−hand headlight
(low beam)
5. HLP LL 10 A (with daytime running light system): Left−hand headlight (low
beam)
Engine compartment
6. RSE 7.5 A: Rear seat audio system,
rear seat entertainment system
7. TOWING TAIL 30 A: Trailer lights (tail
lights)
8. BATT CHARGE 30 A: Trailer sub bat-
tery
9. TOWING BRK 30 A: Trailer brake con-
troller
10. CARGO LP 7.5 A: Cargo lamp
11. SPARE 15 A: Spare fuse
12. SPARE 20 A: Spare fuse
13. SPARE 30 A: Spare fuse
Fuses (double cab models)

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2004 TUNDRA from Sep. ’03 Prod. (OM34426U)
27. ECUB 7.5 A: Multiplex communication
system (power door lock system, secu-
rity system, headlight and tail light auto
cut system, illuminated entry system,
daytime running light system), driver
and front passenger door lock system,
gauges and meters, wireless door lock
system, vehicle stability control system,
door courtesy lights
28. MIR HTR 15 A: Outside rear view mir-
ror heaters
29. RAD NO.1 25 A: Car audio system
30. STA 7.5 A: Starting system
31. TAIL 15 A: Tail lights, trailer lights (tail
lights), parking lights, multiport fuel in-
jection system/sequential multiport fuel
injection system, license plate lights
32. ECUIG 10 A: Charging system, cruise
control system, anti −lock brake system,
vehicle stability control system, traction
control system, electronically controlled
automatic transmission system, electric
moon roof, driver and front passenger
door lock system, gauges and meters,
multi −information display, power outlets
33. WSH 25 A: Wipers and washer
34. AC INV 15 A: Power outlets 35. IGN 2 20 A:
Starting system, multiport
fuel injection system/sequential multi-
port fuel injection system
36. PWR NO.3 20 A: Rear passenger ’s
power window (right side)
37. PWR NO.4 20 A: Rear passenger ’s
power window (left side)
38. CIG 15 A: Cigarette lighter
39. RAD NO.2 7.5 A: Car audio/video sys-
tem, rear seat audio system, rear seat
entertainment system, power rear view
mirror control, power outlets, multiplex
communication system (power door
lock system, security system, headlight
and tail light auto cut system, illumi-
nated entry system, daytime running
light system), clock, shift position indi-
cator lights
40. 4WD 20 A: A.D.D. control system,
four −wheel drive system
41. STOP 15 A: Stop lights, high− mounted
stop lights, multiport fuel injection sys-
tem/sequential multiport fuel injection
system, vehicle stability control system,
traction control system, trailer light
(stop lights), trailer brake controller,
multiplex communication system
42. OBD 7.5 A: On−board diagnosis sys-
tem 43. PANEL 7.5 A:
Instrument panel lights,
glove box light, lights of seat heaters,
cigarette lighter, ashtrays, multi −infor-
mation display, car audio/video system,
gauges and meters, air conditioning
systems, power outlets
44. PWR NO.1 25 A: Driver ’s door lock
system driver’s power wi ndow
45. WIP 25 A: Wiper and washers
46. IGN 1 10 A: Charging system, SRS
airbag system, multiport fuel injection
system/s equential multiport fuel injec-
tion system, vehicle stability control
system
47. SUN ROOF 25 A: Electric moon roof
48. PWR NO.2 25 A: Front passengers’
door lock system, front passenger ’s
power window
49. HTR 10 A: Air conditioning systems,
electric cooling fan, rear window defog-
ger, outside rear view mirror heater,
seat heaters
50. FOG 15 A: Front fog lights

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2004 TUNDRA from Sep. ’03 Prod. (OM34426U)
51. GAUGE 15 A: Back−up lights, gauge
and meters, emergency flashers, slip
indicator light, vehicle stability control
system, four −wheel drive system, trailer
lights (back −up lights), multiport fuel
injection system/sequential multiport
fuel injection system, shift position indi-
cator lights
52. PWR OUTLET 15 A: Power outlets
53. SEAT HTR 15 A: Seat heaters
Fuses (type B)
54. ABS NO.1 30 A (without vehicle sta- bility control system) or ABS NO.1
50 A (with vehicle stability control
system): Anti−lock brake system
55. HEATER 50 A: Air conditioning system
56. DEFOG 40 A: Rear window defogger
57. MAIN 40 A: “H−LP RH”, “H −LP LH”
“H −LP LL” and “H −LP RL” fuses
58. DOOR NO.2 30 A: Multiplex commu-
nication system (power door lock sys-
tem, security system)
59. PWR SEAT 30 A: Power front seats
60. AM1 40 A: “HTR”, “CIG”, “GAUGE”,
“RAD NO.2”, “ECU −IG”, “WIP”, “WSH”
and “4WD” fuses
61. PWR NO.5 30 A: Power rear window Fuses (type C)
62. ALT 140 A: “DEFOG”, “ABS NO.1”,
“CARGO LP”, “HEATER”, “AM1”, “PWR
SEAT”, “TAIL”, “STOP”, “SUN ROOF”,
“PANEL”, “OBD”, “FOG”, “PWR NO.1”,
“PWR NO.2”, “PWR NO.5”, “AC INV”,
“PWR NO.3”, “PWR NO.4”, “PWR OUT-
LET”, “SEAT HTR” “BATT CHARGE”,
“TOWING BRK”, and “TOWING TAIL”
fuses
63. ABS NO.2 60 A: Anti−lock brake sys-
tem, vehicle stability control system,
traction control system