Chevrolet 2002 Silverado 1500 Pickup Owner's Manual page 322

Instrument Panel Jumper Wiring Harness
This harness is included with the heavy
-
camper/fifth wheel trailer wiring packages. The harness
is for an electric trailer brake controller and includes a
trailer battery feed fuse. This harness and fuse should be
installed by your dealer or a qualified service center.
4-94
Four Wire Trailer Harness Adapter
If you need to tow a light
four
included with your vehicle.
-
duty and
-
duty trailer with a standard
-
way round pin connector, an adapter connector is
Connect the adapter with
the tab (arrow) pointing
towards the top. The cap
on the wiring harness will
lock onto the tab (arrow)
and help hold the adapter
in place.