Cadillac 2010 Escalade - Manual (Page 444)

Trailer Wiring Harness
Heavy-Duty Trailer Wiring Harness Package
The vehicle has a seven-pin universal heavy-duty trailer
connector attached to the rear bumper beam next to the
integrated trailer hitch.
The seven-wire harness contains the following
trailer circuits:
. Yellow: Left Stop/Turn Signal
. Dark Green: Right Stop/Turn Signal
. Brown: Taillamps
. White: Ground
. Light Green: Back-up Lamps
. Red: Battery Feed*
. Dark Blue: Trailer Brake*
*The fuses for these two circuits are 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 charging a remote (non-vehicle) battery, press the
tow/haul mode button located at the end of the shift
lever. 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 as a second way
to boost the vehicle system and charge the battery.
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