Trailer Light Wiring Diagram for 7-Way on a 2019 Chevy Silverado 2500

Updated 05/10/2019 | Published 05/09/2019

Products Featured in This Question

Computer Safe Logistic Probe

(7)

$17.92

5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Ram, Toyota - 9' Long

(675)

$114.20

7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End

(2590)

$41.24

Question:

Looking for a trailer light wiring diagram for 2019 Chevy Silverado 2500 HD to identify each wire

asked by: Jacob C

Expert Reply:

According to my research the following wires for the 7-Way on your 2019 Chevy Silverado 2500 should carry the following functions:

Green OR White/Green - Reverse
White - Ground
Blue - Brake Controller
Green OR Green/Purple - Right Turn/Stop
Red/Black OR Red/Green - 12V Power
Brown OR Gray/Brown - Running Lights
Yellow OR Yellow/Gray - Left Turn/Stop

The reverse light function green wire should be slightly larger than the green wire for the right turn/stop function (if you have the 2 green wires). You can also tell the difference between them by testing them using a circuit tester # PTW2991.

Your Silverado should have a US Car Connector plug at the rear which you can simply plug in a new connector like the Hopkins # HM40975 if your current connector got damaged and needs replacing. This will help you from having to do any splicing for a new connector. If you are looking to add one to the bed of your pickup for 5th wheel or gooseneck towing then I recommend installing a connector like the Bargman # 50-97-410 which simply tees into the existing US Car Connector.

Installation videos for both connectors have been linked for you to check out.