Four-Wire Harness Adapter
This adapter is included
with your vehicle as part of
the heavy-duty trailer
wiring package.
Use this adapter to connect a standard four-way round
pin connector to the seven-wire harness on your
vehicle.
Connect the adapter with the tab pointing up
(see arrow). The flip cap on the vehicle’s seven-wire
harness will lock onto the tab and help hold the adapter
in place. Plug the four-way round pin connector onto
the adapter.
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