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not sealed, deadly carbon monoxide
(CO) from the engine's exhaust can
get into the vehicle as well as dirt
and water. See Carbon Monoxide
under Engine Exhaust on
page 9 21.
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
becomes separated from the hitch.
Always leave just enough slack so
the rig can turn. Never allow safety
chains to drag on the ground.
Trailer Brakes
A loaded trailer that weighs more
than 680 kg (1,500 lbs) needs to
have its own brake system that is
adequate for the weight of the
trailer. Be sure to read and follow
the instructions for the trailer brakes
so they are installed, adjusted and
maintained properly.
Trailer Wiring Harness
The optional heavy-duty trailer
wiring package includes a wiring
harness, with a seven-pin connector
at the rear of the vehicle and a
four-wire harness assembly under
the driver side of the instrument
panel. The four-wire harness
assembly comes without a
connector.
If the vehicle does not have a trailer
hitch, the seven-wire harness
assembly with connector is taped
together and located in a frame
pocket at the driver side rear left
corner of the frame.
If the vehicle has a trailer hitch, the
seven-wire harness assembly with
connector is attached to a bracket
on the hitch platform. In both cases,
the seven-wire harness has a
connector and includes a 30-amp
feed wire.
Driving and Operating
The seven-wire harness connector
contains the following trailer circuits:
Light Green: Back-up Lamps
(10A fuse)**
White: Ground
Dark Blue: Trailer Brake Signal
Dark Green: Right Rear Stop
and Turn Signal*
Red/Black Stripe: Battery Feed
(30A Fuse)
Brown: Trailer Park Lamp
Supply Voltage (15A fuse)**
Yellow: Left Rear Stop and Turn
Signal *
The four-wire harness (without
connector) contains the following
circuits:
Black: Ground
Red/White: Battery Feed
Dark Blue: Trailer Brake Signal
Light Blue: CHMSL/Stoplamp
Supply Voltage
9-55
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