Toyota tundra 2003 User Manual page 233

TIRES
Ensure that your vehicle's tires are
D
properly inflated. See Section 7−2 and
Section 8 for instructions.
The trailer tires should be inflated to
D
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.
'03 TUNDRA_U (L/O 0307)
4−pin connector
7−pin connector
TOWING CONNECTOR FOR TRAILER
LIGHTS
Your vehicle is equipped with a wire
D
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
age)—This can be also connected to
the trailer brake and trailer sub battery.
2003 TUNDRA from Jul. '03 Prod. (OM34430U)
pack-
227