Hi All
I have a Problem on my 2002 Silverado 1500 HD Trailer Connector on Truck, 7 Pin - No Right Brake Light Output.
It is the "Tab" at the 3:00 Position.
Parking Lights, Left Brake light and Both Turn Signals work on my Wife's Horse Trailer but Not the Right Brake Light.

I have been searching the "Net" for an Answer, Wiring Diagram for just the 1500 HD,
I'm sure the Trailer Tow Package Wire Harness may be the same for the 2500 and 3500 Trucks but I have not found the Wiring Diagram yet ?

I also saw a few Answers for this Problem, Change the Flasher Unit under the Dash Behind the Knee Panel to the Left of the Steering Column, Got a New Flasher Unit at Advance Auto $ 9.00 (worth it but did not Fix my Issue).

I rented a U-Haul Car Trailer last year to tow my 1969 Camaro SSRS to a show, Right Brake Light also Did not work so it is a Problem with my Truck ?

Thanks for looking
Timmy from Trumbull, CT

 

Hi All
Got It !
Was reading how the Trailer Harness went back to the Main Fuse Box Under the Hood, and that the Break Pedal, Ignition and Hazard's needs to be on for the Circuits/ Fusses to be Tested with a Test Light.
My first "pass over" the Fuse Panel, I did not really pay attention to those as they are marked Trailer Turn and Stop, the Trailer Turn Signals Worked on Both Sides. Oh Well, Stuck a piece of wood against the Seat to the Break Pedal to hold the Brake lights On, and Turned the Ignition on, # 9 Fuse was Blown.
Replaced it and my Trailer Brake Light "Tab" for the Truck Trailer Connector is now Hot/ 12v for the Right Turn Signal.

Just wanted to pass this info along.
Timmy