Running and Tail Lights Not Working on a Trailer
Published 07/07/2008
Question:
Your advice is GREAT! I have a 97 F250 HD gas model with 7 blade wiring harness [factory?] I have everything on my trailer working except marker and running/tail lights which are essential for night driving. Any possible solutions / shortcuts / patchwork. Ford says look in the control box under the hood / everything appears O.K.....HELP!
asked by: Robert
Expert Reply:
The first thing that I would do is use a circuit tester and determine if you are getting power through the connector (with the lights turned on.) If you are getting power there, just trace the wire back to the trailer, looking for broken, frayed, or pinched wires. If you have no power at the connector with the lights on, I would double check that under hood fuse box. Check with your owner manual to see which fuse relates to that circuit.
Product Page this Question was Asked From
Continue Researching
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Article: Trailer Wiring Diagrams
- Q&A: How to Test Brake Controller without Trailer Connected
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Trailer Turn Signals Both Blink when Just Left Turn Signal is Activated
- Q&A: Trailers Right Tail Light Stays on Even While Unplugged
- Q&A: Troubleshooting Right Side Trailer Lights Not Working, Left Side Working Correctly
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Article: Brake Controller Installation for 2007 (New Body Style) - 2013 GMC Sierra and Chevy Silverado
- Article: Brake Controller Installation: Starting from Scratch
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Q&A: Troubleshooting A Thomas Payne Recliner That Will Not Recline
- Q&A: Can I Use a 4 Way Vehicle Connector with 7 Way Adapter and the Curt Echo Brake Controller?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)