Troubleshooting Brake Lights Not Working on Tow Vehicle
Updated 06/19/2018 | Published 06/16/2018 >
Question:
Hi Guys, Im trying to get my brake lights working. I checked the tie in at the truck tail lights and found the blue squeeze on connectors. I put new inline connectors in. I also found a crack in I the insulation on the plug wires and changed them out to a new plug. but I still cant get my brake lights to work. I get running lights and left and right turn signals but now brake light. I did plug in a tester and tun/lights work what am I missing? any thoughts would be helpful. Thanks,
asked by: Bob
Expert Reply:
Sounds like you have a blown third brake light fuse on your tow vehicle if you can get all of the other functions to work but not the brake lights. Check out the fuse box of the vehicle and replace that fuse and you should see the lights work like they should.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Base Plate for Tow Bar
- Shop: Replacement Attachment Tabs for Blue Ox Base Plates - Short Front/Long Back - Qty 2
- Shop: Replacement Attachment Tabs for Blue Ox Base Plates - Short Front/Short Back - 7-1/2" - Qty 2
- Shop: TRED GT Wheel Chocks - Polyurethane - Black - Qty 2
- Shop: Blue Ox Base Plate Kit - Removable Arms
- Shop: Hook Probe Circuit Tester
- Shop: Blue Ox Base Plate Kit - Removable Arms
- Search Results: wheel chock
- Search Results: bx2258
- Q&A: What Function is Carried on Center Pin of 6-Way Round Trailer Connectors
- Search Results: base plate for tow bar
- Shop: Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Which is Better Roadmaster or Blue Ox Tow Bar
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord
- Shop: Trailer Hitch
- Article: Trailer Wiring Diagrams
- Video: An In-Depth Look at the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Search Results: tow bar
- Q&A: Recommended Parts for Flat Towing a 2025 Ford Maverick
- Shop: Vehicle Tow Bar Wiring
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Search Results: trailer hitch
- Article: Best Vehicles to Flat Tow Behind an RV
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Vehicle Tow Bar Brake System
- Video: Breaking Down the Blue Ox Patriot Portable Flat Tow Brake System
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: vehicle tow bar wiring
- Q&A: Choosing Between the Brake Buddy Select 3 and the Blue Ox Patriot Supplemental Braking System


