Is it easy to troubleshoot a trailer light?

While it’s never a good idea to dive into a wiring project blind, trailer wiring is actually very simple to work on and troubleshoot. For the most part, the wiring harness that operates your trailer lights is a closed system.

Is the wiring on a trailer a closed system?

For the most part, the wiring harness that operates your trailer lights is a closed system.

How many wires are in a Silverado trailer?

Strip wires of the chassis harness. Each aftermarket trailer wiring kit uses wires of different colors. The first-generation Silverado has five wires in its trailer harness; however, some kits have harnesses with up to seven wires.

How do you install a tow harness on a Chevy Silverado?

Strip wires of the aftermarket tow-harness. Insert the wires of the chassis harness and the aftermarket tow-harness into the butt connectors. Crimp the butt connectors to attach the wires. Wrap the new harness connections with electrical tape. Figure 6. Install butt connector to the ends of each wire. Figure 7.

Do you need power wire for trailer lights?

Some vehicles require you to route a power wire from the harness to the vehicle battery because the vehicle’s electrical system cannot handle the amperage draw of the trailer lights. For a breakdown of how to route a power wire for a trailer wiring harness, click here.

How to route a power wire for a trailer harness?

For a breakdown of how to route a power wire for a trailer wiring harness, click here. If the vehicle connector is under the vehicle, use a mounting bracket to attach it to the vehicle. This will help prevent damage that may occur if the connector is left dangling.

For the most part, the wiring harness that operates your trailer lights is a closed system.