4-10
TOPAZ
2. Wiring Harness Plug:
The trailer wiring harness is equipped with a 7
pin connector that plugs into a mating recepta-
cle on the tow vehicle. The harness transmits
electrical power from the tow vehicle to the
trailer brakes, lights and battery. Keep all
components clean and in good condition to
minimize problems.
a. Installation:
Always have an authorized repair center
install the tow vehicle receptacle plug and
associated wiring. Improper installation
can adversely affect the trailer electrical
system. Never tow the trailer unless the
wiring harness is connected.
Fig. 4-10 7 PIN CONNECTOR WIRING DIAGRAM
BRAKE AND ELECTRICAL SYSTEM
b. Plugs:
Special 7 pin connectors are used
on the end of the wiring harness to
transmit the power between the
trailer and tow vehicle. Install the
plug on the tow vehicle per the
connector wiring diagram. Always
use a #10 wire on the ground
circuit to prevent compromising the
battery charging efficiency.
Always keep both the male and
female portions of the plug clean
and free of corrosion. Protect both
ends from dirt, moisture and the
elements when not in use. Before
connecting the plugs, check each
terminal for corrosion. Clean prior
to connecting.
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