Chevy Trailblazer Trailer Lights Wiring Diagram. It's just getting the wiring diagram to ensure you have the right wires to tap into or just being good with the multi-meter. For the most part, the wiring harness that operates your trailer lights is a closed system.
For more advanced issues that you. According to the wiring diagram for the A/C yes that fuse also controls the ignition power for the A/C controller. One light in the kit will typically contain a clear plastic section on one side for this purpose.
There are several standards for trailer wires, and if you search, you'll find a different Trailer Wiring Diagram for each.
For the most part, the wiring harness that operates your trailer lights is a closed system.
In this video I show how I installed a new trailer wire connector to my Chevy Blazer.** I misspoke when discussing the break light connection. Checked fuses, bulbs and replaced brake switch yet still not working. Thanks for your time in advance.