1999 Gmc Sierra 1500 Factory Trailer Wiring Harness
ByCustom LVDS Cable
Table of Contents
How to Install a 1999 GMC Sierra 1500 Factory Trailer Wiring Harness
Installing a trailer wiring harness on your 1999 GMC Sierra 1500 is a simple process. With the right tools and a little bit of patience, you can have your truck ready to tow in no time. Here’s what you’ll need to do:
1. Start by locating the factory wiring harness. This is usually located near the rear of the truck, near the bumper.
2. Disconnect the negative battery cable to prevent any electrical shorts.
3. Remove the tailgate and the tail light assemblies.
4. Unplug the factory wiring harness from the tail light assemblies.
5. Install the trailer wiring harness. This will usually involve connecting the harness to the factory wiring harness and then running the wiring to the rear of the truck.
6. Connect the trailer wiring harness to the tail light assemblies.
7. Reinstall the tailgate and the tail light assemblies.
8. Reconnect the negative battery cable.
9. Test the trailer wiring harness to make sure it is working properly.
That’s it! Installing a trailer wiring harness on your 1999 GMC Sierra 1500 is a relatively simple process. With the right tools and a little bit of patience, you can have your truck ready to tow in no time.
Troubleshooting Common Issues with a 1999 GMC Sierra 1500 Factory Trailer Wiring Harness
If you are having trouble with your 1999 GMC Sierra 1500 factory trailer wiring harness, there are a few common issues that you can troubleshoot.
First, check the wiring harness for any loose connections or frayed wires. If you find any, you will need to replace the wiring harness.
Second, check the trailer wiring harness for any corrosion or rust. If you find any, you will need to clean the wiring harness with a wire brush and then apply a corrosion inhibitor.
Third, check the trailer wiring harness for any loose or broken fuses. If you find any, you will need to replace the fuses.
Fourth, check the trailer wiring harness for any loose or broken connectors. If you find any, you will need to replace the connectors.
Finally, check the trailer wiring harness for any loose or broken wires. If you find any, you will need to replace the wires.
If you have checked all of these items and still have issues with your 1999 GMC Sierra 1500 factory trailer wiring harness, you may need to take it to a professional for further inspection.
