Troubleshooting No Trailer Reverse Light Function on 2023 Chevy Silverado 3500 7-Way Center Pin

Question:

I have a 2023 Silverado 3500 and my 7 pin connector doesn’t seem to have reverse light circuit on center pin or any other? What am I missing My 2021 worked I have a 5 flat on boat trailer to lock out surge brake line while backing up There’s a fuse under hood for the fuse is good

asked by: Jim

Expert Reply:

Have you tested the center pin of the 7-Way on your 2023 Chevy Silverado 3500 with a circuit tester like part # PK12741, or have you just been testing that circuit with your boat trailer? If you've been testing it with just your boat trailer then try testing your vehicle and the trailer apart from each other. You can use a different truck with your trailer and a different trailer with your truck to accomplish this.

If you have tested your reverse pin with a circuit tester and your fuse for that function looks good then I'd honestly take your truck to a GM dealer as there is either an issue with the OEM wiring or something going on with the computer.

Hope this helps point you in the right direction!

expert reply by: Jon G