Old Trailer Lights had 3 Wires and New Trailer Lights have 2 Wires
Question:
Hi, Old lights were Peterson 440-15s using 3 wires to power e.g. 2 yellows and 1 brown for drivers side tail light. New lights are Blazer Intl from light kit C6423 incandescent that only have 2 wires coming from the light: e.g. 1 yellow and 1 brown on drivers side. Do I just splice the original 2 yellows together and join then to the single new yellow green to green on passenger side of course? The brown to brown is not an issue as amber market lights already done. Thanks for any help,
asked by: Ted A
Expert Reply:
Usually when a light has 3 wires one of them is a ground, one is running lights, and one is brake/turn signals. And usually on a light with 2 wires it will ground through the mounting hardware and one wire will be for running lights and the other for brake/turn signal.
I am not sure how your old lights were set up or why it would have 2 wires that are the same color unless the trailer had separate amber turn signals. This is uncommon on trailers in North America though because they brake lights and turn signals operate on the same circuit.
To determine which wires to attach to your new lights we need to know what each of the wires does. The new light-yellow wire is for brake and turn signal and the brown is for running lights. Attach the appropriate wires on the trailer to match these functions.
To determine the functions, you can plug the trailer into the vehicle and have someone go through the light functions while you test the wires with a circuit tester such as # PTW2993. Then you can splice in the light wires accordingly.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: Optronics Streamline LED Trailer Light Installation
- Search Results: led brake light strip
- Shop: Hot-Line LED Third Brake Trailer Light Bar w/ Reflector - Stop, Turn, Tail - Submersible - Red Lens
- Shop: Replacement Stainless Steel Top with Glass Cover for Furrion 2-in-1 Range Oven
- Shop: Replacement Black Top with Glass Cover for Furrion 2-in-1 Range Oven
- Shop: Furrion Propane RV Range with Glass Cover - 3 Burners - 21" Tall - Stainless Steel
- Q&A: How to Wire New Trailer Taillights with Two Black and One Red Wire
- Shop: Hook Probe Circuit Tester
- Shop: Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens
- Shop: Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Red Lens
- Article: Trailer Wiring Diagrams
- Q&A: Wiring New 3 Wire Light on Trailer to Replace 2 Wire Light
- Shop: Trailer Wiring
- Video: Furrion 2-in-1 Range Oven Stainless Steel Top with Glass Cover Replacement Review
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Search Results: trailer lights
- Search Results: rv stoves and ovens
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: Choosing the Right Trailer Wiring
- Q&A: Replacement Glass Cover for Furrion 2-in-1 Range Ovens
- Search Results: 328~003~6017x
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Furrion 2-in-1 Range Oven with Glass Cover Review
- Shop: Brake Controller
- Search Results: furrion
- Shop: Suspension Enhancement
- Video: Review of Furrion - RV Stoves and Cooktops - C-FSRE21SA-SS-003
- Q&A: 7-Way RV Trailer Connector Wiring Diagram
- Search Results: brake controller
on Wiring
