Where to Connect 4-Way Trailer Wiring Harness on 2020 Chevy Express 2500 Without Tow Package
Question:
Hello, My new Chevy Express 2500 has an installed option Trailering wire harness provisions. It does not have a Tow Package. Description for the Trailering wire harness provisions is trailer wiring with dual 4-pin/7-pin sealed connector. There is no instructions as to where this harness is on the vehicle. I found two free connectors at driver side near rear door. I also found a connector under the cab at rear door, driver side. I cant tell which would be the installed trailering harness. Do you know where I might find the connector and which harness to should purchase to connect to my trailer? Thank you
asked by: Nick H
Helpful Expert Reply:
Thanks for the photo and let's start with the correct 4-way for your 2020 Chevy Express 2500, which is the T-One Vehicle Wiring Harness # 118392.
As you can see by the cut out of the linked installation instructions I added, you will connect the harness to the plug on the driver's side, which you have pointed out in your photo. I have added a link to an installation video I recommend checking out as well.
Then to add a 7-way you will need to hardwire in the Universal Installation Kit for Trailer Brake Controller # ETBC7, which is going to give you a 7-way connector, circuit breakers and the rest of the hardware needed to install a brake controller. For that I highly recommend the Prodigy P3 Trailer Brake Controller # 90195.
This is considered by many to be the highest-quality brake controller on the market which is going to give you smooth braking and is easy to use with its bright LCD display. I have added links to video reviews as well as help articles on installing a brake controller for you which I also recommend checking out.
Products Referenced in This Question
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
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