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The seven-wire harness contains
the following trailer circuits:
• Yellow: Left Stop/Turn Signal
• Dark Green: Right Stop/Turn
Signal
• Brown: Taillamps
• Black: Ground
• Light Green: Back-up Lamps
• Red/Black: Battery Feed
• Dark Blue: Trailer Brake*
*The fuse for this circuit is installed
in the underhood electrical center,
but the wires are not connected.
They should be connected by your
dealer/retailer or a qualified
service center.
If the back-up lamp circuit is not
functional, contact your
dealer/retailer.
If a remote (non-vehicle) battery is
being charged, press the Tow/Haul
mode switch located on the
center console near the climate
controls. This will boost the vehicle
system voltage and properly
charge the battery. If the trailer is
too light for Tow/Haul mode, turn on
the headlamps (Non-HID only) as
a second way to boost the
vehicle system and charge the
battery.
Electric Trailer Brake Control
Wiring Provisions
These wiring provisions for an
electric trailer brake controller are
included with the vehicle as
part of the trailer wiring package.
The instrument panel contains blunt
cut wires behind the steering
column for the electric trailer brake
controller. The harness contains
the following wires:
• Red/Black: Power Supply
• White: Brake Switch Signal
• Gray: Illumination
• Dark Blue: Trailer Brake Signal
• Black: Ground
The electric trailer brake controller
should be installed by your
dealer/retailer or a qualified service
center.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
on page 5-23.
Driving Your Vehicle 4-35