2005 TOYOTA TUNDRA trailer

’05 TUNDRA_U (L/O 0408)
386
2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
TOWING CONNECTOR FOR TRAILER
LIGHTS
Your vehicle is equipped with a wire
harness stored in the rear end under
body. Some models are fitted with a
socket for trailer lights under the rear
bumper. Use either of them to connect
and operate the trailer lights. However,
the trailer lights must comply with fed-
eral, state/provincial and local regula-
tions. See your local recreational ve-
hicle dealer or rental agency for the
correct type of wiring and relays for
your trailer. Check for correct operation
of the turn signals and stop lights each
time you hitch up. Direct splicing may
damage your vehicle’s electrical system
and cause a malfunction of your lights.
7−pin connector (with towing pack-
age)—This can be also connected to
the trailer brake and trailer sub battery. BREAK−
IN SCHEDULE
Toyota recommends that you do not
tow a trailer with a new vehicle or a
vehicle with any new power train com-
ponent (engine, transmission, differen-
tial, wheel bearings, etc.) for the first
800 km (500 miles) of driving.
MAINTENANCE
If you tow a trailer, your vehicle will
require more frequent maintenance due
to the additional load. For this informa-
tion, please refer to the scheduled
maintenance information in the “Sched-
uled Maintenance Guide” or “Owner ’s
Manual Supplement”.
Retighten all fixing bolts of the towing
ball and bracket after approximately
1000 km (600 miles) of trailer driving.
PRE −TOWING SAFETY CHECK
Check that your vehicle remains level
when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has
an abnormal nose −up or nose −down
condition, and check for improper
tongue load, overload, worn suspension
or other possible causes.
Make sure the trailer cargo is securely
loaded so that it cannot shift.
Check that your rear view mirrors con-
form to any applicable federal, state/
provincial or local regulations. If not,
install the rear view mirrors required
for towing purposes.
TRAILER TOWING TIPS
When towing a trailer, your vehicle will
handle differently than when not tow-
ing. The three main causes of vehicle −
trailer accidents are driver error, exces-
sive speed and improper trailer loading.
Keep these in mind when towing:
Before starting out, check operation of
the lights and all vehicle −trailer connec-
tions. After driving a short distance,
stop and recheck the lights and con-
nections. Before actually towing a trail-
er, practice turning, stopping and back-
ing with a trailer in an area away from
traffic until you learn the feel.

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
Backing with a trailer is difficult and
requires practice. Grip the bottom of
the steering wheel and move your hand
to the left to move the trailer to the
left. Move your hand to the right to
move the trailer to the right. (This pro-
cedure is generally opposite to that
when backing without a trailer). Also,
just turn the steering wheel a little at
a time, avoiding sharp or prolonged
turning. Have someone guide you when
backing to reduce the risk of an acci-
dent.
Because stopping distance may be in-
creased, vehicle− to−vehicle distance
should be increased when towing a
trailer. For each 16 km/h (10 mph) of
speed, allow at least one vehicle and
trailer length between you and the ve-
hicle ahead. Avoid sudden braking as
you may skid, resulting in jackknifing
and loss of control. This is especially
true on wet or slippery surfaces.
Avoid jerky starts or sudden accelera-
tion. If your vehicle has a manual
transmission, prevent excessive clutch
slippage by keeping engine rpm low
and not racing the engine. Always start
out in first gear.
Avoid jerky steering and sharp turns.
The trailer could hit your vehicle in a
tight turn. Slow down before making a
turn to avoid the necessity of sudden
braking.
Remember that when making a turn,
the trailer wheels will be closer than
the vehicle wheels to the inside of the
turn. Therefore, compensate for this by
making a larger than normal turning
radius with your vehicle.
Crosswinds and rough roads will ad-
versely affect handling of your vehicle
and trailer, causing sway. Pay attention
to the rear from time to time to pre-
pare yourself for being passed by large
trucks or buses, which may cause your
vehicle and trailer to sway. If swaying
happens, firmly grip the steering wheel
and reduce speed immediately but
gradually. Never increase speed. Steer
straight ahead. If you make no extreme
correction with the steering or brakes,
the vehicle and trailer will stabilize.
Be careful when passing other ve-
hicles. Passing requires considerable
distance. After passing a vehicle, do
not forget the length of your trailer and
be sure you have plenty of room be-
fore changing lanes.
In order to maintain engine braking effi-
ciency, do not use sixth gear (manual
transmission) or overdrive (automatic
transmission).
Because of the added load of the trail-
er, your vehicle’s engine may overheat
on hot days (at temperatures over
30 C [85 F]) when going up a long or
steep grade with a trailer. If the engine
coolant temperature gauge indicates
overheating, immediately turn off the air
conditioning (if in use), pull off the road
and stop in a safe spot. Refer to “If
your vehicle overheats” in Section 4.

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
Always place wheel blocks under both
the vehicle and trailer wheels when
parking. Apply the parking brake firmly.
Put the transmission in “P” (automatic)
or in first or reverse (manual). Avoid
parking on a slope with a trailer, but
if it cannot be avoided, do so only
after performing the following:
1. Apply the brakes and hold.
2. Have someone place wheel blocks un- der both the vehicle and trailer wheels.
3. When the wheel blocks are in place, release your brakes slowly until the
blocks absorb the load.
4. Apply the parking brake firmly.
5. Shift into first or reverse (manual) or “P” (automatic) and turn off the engine. When restarting out after parking on a
slope:
1. With the transmission in “P” position (automatic) or the clutch pedal de-
pressed (manual), start the engine.
(With an automatic transmission, be
sure to keep the brake pedal de-
pressed.)
2. Shift into gear.
3. Release the parking brake (also foot brake on automatic transmission ve-
hicles) and slowly pull or back away
from the wheel blocks. Stop and apply
your brakes.
4. Have someone retrieve the blocks.CAUTION
Do not exceed 72 km/h (45 mph) or
the posted towing speed limit,
whichever is lower. Because insta-
bility (swaying) of a towing vehicle −
trailer combination usually in-
creases as the speed increases, ex-
ceeding 72 km/h (45 mph) may
cause loss of control.
Slow down and downshift before
descending steep or long downhill
grades. Do not make sudden down-
shifts.
Avoid holding the brake pedal down
too long or too frequently. This
could cause the brakes to overheat
and result in reduced braking effi-
ciency.

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
kg (lb.)
Standard cab
models
1GR −FE engineTw o −wheel drive modelsWithout towing package2358 (5200)
2UZ −FE engine
Tw o −wheel drive modelsWithout towing package2494 (5500)
With towing package3311 (7300)
Four −wheel drive modelsWithout towing package2494 (5500)
With towing package3311 (7300)
Access cab models
1GR −FE engineTw o −wheel drive modelsWithout towing package2268 (5000)
2UZ −FE engine
Tw o −wheel drive modelsWithout towing package2494 (5500)
With towing package3311 (7300)
Four −wheel drive modelsWithout towing package2358 (5200)
With towing package3175 (7000)
Double cab models2UZ −FE engine
Tw o −wheel drive modelsWithout towing package2358 (5200)
With towing package3175 (7000)
Four −wheel drive modelsWithout towing package2222 (4900)
With towing package3039 (6700)
∗: Trailer weight + car go weight
Towing capacity∗

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
Engine compartment
Instrument panel
Fuses (type A)
1. MIR HTR 15 A: Outside rear view mir-
ror heaters
2. FOG 15 A: Front fog lights
3. TOW BRK 30 A (with towing pack- age): Trailer brake controller
4. SUB BATT 30 A (with towing pack- age): Trailer sub battery
5. TOW TAIL 30 A: Trailer lights (tail
lights)
6. SPARE 30 A: Spare fuse
7. SPARE 15 A: Spare fuse
8. SPARE 20 A: Spare fuse 9. SPARE 10 A:
Spare fuse
10. PWR OUTLET 1 15 A: Power outlets
11 . E C U −B 5 A: Vehicle stability control
system, front passenger occupant clas-
sification system
12. H −LP RH 10 A: Right−hand headlight
(high beam)
13. PWR OUTLET 2 15 A: Power outlet
14. DOME 10 A: Interior light, personal
lights, vanity light, ignition switch light,
step light, door courtesy lights, open
door warning light
15. H −LP LH 10 A : Left−hand headlight
(high beam)
16. EFI NO.2 10 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, leak detection pump, emis-
sion control system
17. RADIO 25 A: Audio system
18. HEAD RL 10 A (with daytime running light system): Right−hand headlight
(low beam)
19. A/C 10 A: Air conditioning system
20. A/F 20 A: A/F sensor
21. HEAD LL 10 A (with daytime running light system): Left−hand headlight (low
beam)
Fuses (standard and access
cab models)

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
Engine compartment
Fuses (type A)
1. RSE 7.5 A: Rear seat audio system,
rear seat entertainment system
2. A/F 20 A: A/F sensor
3. DEF/I UP 7.5 A: Outside rear view
mirror heaters, multiport fuel injection
system/s equential multiport fuel injec-
tion system
4. A/C 7.5 A: Air conditioning system
5. H −LP LL 10 A (with daytime running
light system): Left−hand headlight (low
beam)
Engine compartment
6. H −LP RL 10 A (with daytime running
light system): Right−hand headlight
(low beam)
7. STA 7.5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
8. H −LP LH 10 A (with daytime running
light system): Left−hand headlight
(high beam)
9. H −LP RH 10 A (with daytime running
light system): Right−hand headlight
(high beam)
10. TOWING TAIL 30 A: Trailer lights (tail
lights)
Engine compartment
11. BATT CHARGE 30 A: Trailer sub bat-
tery
12. TOWING BRK 30 A: Trailer brake con-
troller
13. CARGO LP 7.5 A: Cargo lamp
14. SPARE 15 A: Spare fuse
15. SPARE 20 A: Spare fuse
16. SPARE 30 A: Spare fuse
17. ETCS 10 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, electronic throttle control
system
Fuses (double cab models)

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
Instrument panel
18. EFI NO.1 20 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system
19. H −LP RH 15 A (without daytime run-
ning light system): Right−hand head-
light
20. TOWING 30 A: Towing converter
21. ALT− S 7.5 A: Charging system
22. DRL 15 A (with daytime running light system): Daytime running light system
H −LP LH 15 A (without daytime run-
ning light system): Left −hand head-
light
23. AM2 25 A: Starting system 24. TURN
−HAZ 20 A: Turn signal lights,
emergency flashers, towing converter
25. RAD NO.3 30 A: Audio system/video
system
26. ST 30 A: Starting system, “STA” fuse
27. HORN 10 A: Horns
28. EFI NO.2 10 A: Multiport fuel injection
system/se quential multiport fuel injec-
tion system, leak detection pump
29. DOME 10 A: Center interior and per-
sonal lights, personal lights, gauges
and meters, clock, ignition switch light,
door courtesy lights, step light, vanity
lights
30. ECU −B 7.5 A: Multiplex communication
system, front passenger occupant clas-
sification system, driver and front pas-
senger door lock system, gauges and
meters, wireless door lock system
31. MIR HTR 15 A: Outside rear view mir-
ror heaters
32. RAD NO.1 20 A: Audio system, rear
seat entertainment system
33. TAIL 15 A: Tail lights, trailer lights (tail
lights), parking lights, multiport fuel in-
jection system/sequential multiport fuel
injection system, license plate lights 34. ECU
−IG 10 A: Charging system, stop
lights, anti −lock brake system, vehicle
stability control system, traction control
system, electric moon roof, driver and
front passenger door lock system,
gauges and meters, multi −information
display, power outlets, multiplex com-
munication system, tire pressure warn-
ing system, auto anti− glare inside rear
view mirror
35. WSH 25 A: Wipers and washer
36. AC INV 15 A: Power outlets
37. IGN 2 20 A: Starting system, multiport
fuel injection system/sequential multi-
port fuel injection system
38. PWR NO.3 20 A: Rear passenger’s
power window (right side)
39. PWR NO.4 20 A: R
e
ar passenger’s
power window (left side)
40. CIG 15 A: Cigarette lighter
41. RAD NO.2 7.5 A: Audio system/video
system, rear seat audio system, rear
seat entertainment system, multiplex
communication system, clock, shift
position indicator lights
42. 4WD 20 A: A.D.D. control system,
four −wheel drive system

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2005 TUNDRA from Aug. ’04 Prod. (OM34427U)
43. STOP 15 A: Stop lights, high− mounted
stop lights, multiport fuel injection sys-
tem/sequential multiport fuel injection
system, anti −lock brake system, vehicle
stability control system, traction control
system, trailer light (stop lights), trailer
brake controller, towing converter, mul-
tiplex communication system
44. OBD 7.5 A: On−board diagnosis sys-
tem
45. PANEL 7.5 A: Instrument panel lights,
glove box light, lights of seat heaters,
cigarette lighter, ashtrays, multi −infor-
mation display, audio system/video sys-
tem, gauges and meters, air condition-
ing systems, power outlets
46. PWR NO.1 25 A: Driver ’s door lock
system, driver’s power wi ndow
47. WIP 25 A: Wiper and washers
48. IGN 1 10 A: Charging system, SRS
airbag system, multiport fuel injection
system/s equential multiport fuel injec-
tion system, vehicle stability control
system, g auges and meters, air condi-
tioning system, front passenger occu-
pant classification system
49. SUN ROOF 25 A: Electric moon roof50. PWR NO.2 25 A:
Front passengers’
door lock system, front passenger ’s
power window
51. HTR 10 A: Air conditioning systems,
electric cooling fan, back window de-
fogger, seat heaters
52. FOG 15 A: Front fog lights
53. 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
54. PWR OUTLET 15 A: Power outlets
55. SEAT HTR 15 A: Seat heaters
Fuses (type B)
56. MAIN 40 A: “H−LP RH”, “H −LP LH”
“H −LP LL” and “H −LP RL” fuses
57. DOOR NO.2 30 A: Multiplex commu-
nication system (power door lock sys-
tem, security system)
58. PWR SEAT 30 A: Power front seats59. AM1 40 A:
“HTR”, “CIG”, “GAUGE”,
“RAD NO.2”, “ECU −IG”, “WIP”, “WSH”,
“IGN 1”, “IGN 2” and “4WD” fuses
60. PWR NO.5 30 A: Power back window
Fuses (type D)
61. ABS NO.2 30 A: Anti−lock brake sys-
tem, vehicle stability control system
62. DEFOG 40 A: Back window defogger
63. HEATER 50 A: Air conditioning system
6 4

. TOWING R/B 60 A: “TOWING TAIL”,
“BATT CHARGE” and “TOWING BRK”
fuses
65. ALT 140 A: “DEFOG”, “ABS NO.2”,
“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
OUTLET” and “SEAT HTR” fuses
66. ABS NO.1 40 A: Anti−lock brake sys-
tem, vehicle stability control system
67. A/PUMP 50 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system
68. R/B 30 A: “A/F” fuse