Left Hand Tail Light Fuse Blows on Tow Vehicle with Trailer Attached
Question:
Kept having a problem with blowing fuses on the running lights, with a recently purchased trailer. Decided to install a new wiring harness and lights which solved the running lights issue but now the left hand blinker is blowing fuses. Trailer is grounded in 3 spots, a ground of each light and the harness itself is grounded to the trailer near the tongue. Any ideas on what the problem could be?
asked by: Owen
Expert Reply:
When a fuse on the tow vehicle associated with the trailer lights blows this means that you have an overdraw. The overdrawn is most likely associated with a short in the wire. The short could be anywhere from the trailer wiring harness where it connects to the vehicle's tail light all the way back to the tail light on the trailer. You will need to trace this wire back while checking for breaks in order to find the sort. I would also pay special attention to the trailer connectors to make sure none of the pins are bent or are corroded. There could also be an issue with the wires touching that lead into the trailer connectors.
If you have access to a different trailer or tow vehicle you could save yourself some time and easily determine which side the issue is on, truck or trailer.
Product Page this Question was Asked From
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 4 Flat
- Draw-Tite
more information >
Continue Researching
- Search Results: max coupler
- Shop: Trailer Hitch
- Shop: Suspension Enhancement
- Article: Steel vs. Aluminum Ball Mounts
- Video: Curt Ball Mounts - Fixed Ball Mount - C45448 Review
- Video: Review of Curt Trailer Hitch Ball Mount - Replacement Tongue Attachment - C28KR
- Shop: Replacement Ball Platform for Curt Rebellion XD Adjustable Ball Mount
- Shop: Ball Mount Adapter for Convert-A-Ball Cushioned Weight Distribution Shank
- Shop: Shocker Hitch XR Adjustable Drop Hitch - 2" Ball - 2-1/2" Hitch - 7-1/2" Drop - 10K
- Shop: Curt Ball Mount for 2" Hitches - 6-1/4" Rise, 7-1/2" Drop - 13" Long - 5,000 lbs
- Shop: Curt Channel Style Adjustable Ballmount - 5-1/4" Rise, 6-3/4" Drop - 6,000 lbs
- Shop: Curt Ball Mount for 2" Hitches - 7" Rise, 8" Drop - 9-3/8" Long - 12,000 lbs
- Video: Curt Ball Mount Review C45100
- Video: Curt Ball Mounts - Fixed Ball Mount - C45100 Review
- Video: Choosing the Right Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Search Results: 44649
- Shop: Trailer Wiring
- Article: How to Choose the Right Trailer Hitch Class
- Shop: Brake Controller
- Search Results: 68149
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Choosing the Right Brake Controller
- Q&A: Replacement Clearance Lights Needed for GLO-BRITE 122R and 122Y Lights
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Search Results: 25580
- Article: Trailer Wiring Diagrams
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: dust cap