Extra Blue Wire Near 7-Way Trailer Connector on 2003 Chevy Silverado 2500 HD
Question:
I have a 2003 Chevy Silverado 2500 HD gas truck. My new puppy chewed the wires behind the trailer wiring plug. I know where all the wires go into the plug, but there was a blue wire by itself. I cannot find where it goes. It has a piece of a plug on the end of it. I’ve looked up on the frame to see where it went. Can’t find anything. Can you help me ? Thanks I just sent my question with a picture. The lone blue wire does not go to that plug. It has to go somewhere else. Thanks again
asked by: Jessey B
Expert Reply:
I'm pretty sure that's to wire up a third brake light on a camper shell. To know for sure, take a circuit tester, like our part # PTW2993, and test that wire while applying the truck's brakes. If I'm correct it's a dedicated brake light wire and it doesn't need to be connected to anything unless you have a camper shell with a third brake light, you need to connect to it. Without the shell it's an extra unused wire.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class V XD - 2"
- Shop: Brake Controller
- Video: Trailer Brake Controller Installation - 2004 Chevrolet Silverado
- Shop: Towing Mirrors
- Video: Tekonsha Brake Controller 3015-P Review
- Shop: Suspension Enhancement
- Q&A: Everchill Model WD-282FWDC-B-6 RC refrigerator
- Shop: CIPA Custom Towing Mirrors - Slip On - Driver Side and Passenger Side
- Shop: Longview Custom Towing Mirrors - Slip On - Driver and Passenger Side
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Trailer Axle w/ Electric Brakes - Easy Grease - 6 on 5-1/2 - 86-1/2" Long - 6,000 lbs
- Shop: Trailer Axle w/ Electric Brakes - Easy Grease - 6 on 5-1/2 Bolt Pattern - 95" Long - 6,000 lbs
- Shop: Trailer Axle w/ Electric Brakes - Easy Grease - 8 on 6-1/2 Bolt Pattern - 94" Long - 7,000 lbs
- Shop: RV Mattress
- Article: Trailer Hitch Receiver Sizes
- Search Results: 3015~p
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Article: Trailer Wiring Diagrams
- Q&A: What is the Function of the Light Blue Wire on a 2006 Chevy 3500 7-Way Trailer Connector
- Q&A: Best Towing Mirrors for 2004 Chevy Silverado 2500HD
- Q&A: Replacement 7-Way Trailer Connector for a 2003 Chevy Silverado
- Article: Troubleshooting Brake Controller Installations
- Shop: Fifth Wheel Hitch
- Search Results: trailer hitch
- Search Results: tekonsha
- Q&A: Wiring For 7-Way Connector on 2004 Chevrolet Silverado 2500
- Q&A: Replacing a 7-way Trailer Connector on a 2006 Chevy Silverado
- Video: Trailer Connector Socket Installation - 2004 Chevrolet Silverado
on Wiring
