Troubleshooting Check Trailer Wiring Message on 2017 Chevy Silverado 2500

Updated 05/28/2025 | Published 09/08/2018

Question:

When the seven pin connector is plugged in to 2017 Silverado a message appears on instrument panel trailer wiring. Any suggestions?

asked by: Barry A

Expert Reply:

I took a look at the owner's manual for your 2017 Chevy Silverado 2500 and it said that if the "Check Trailer Wiring" message appeared you have the Integrated Trailer Brake Control (ITBC) and it indicates there is a short in the wiring going to your electric brakes. You will need to go over that wiring and look for the short, paying attention to any broken, crimped or otherwise damaged wires.

expert reply by: Kyle S

Bill S.

5/28/2025

2017 chevy silverado 3500 no mater what trailer i have with electric brakes check trailer wiring comes on

Jameson C.

5/28/2025

@BillS Have you checked the pins of the 7-way for any corrosion? Typically that's causes this issue. You should be able to clean the pins of the connector with sandpaper and bring it back.