Using Roadmaster Hy-Power Diode to Prevent Back-feeding With Trailer Lights
Updated 10/06/2015 | Published 10/04/2015 >
Question:
I am looking at wiring extra backup lights on trailer, and would also like to use them as loading lights with a separate switch. Since I will have two triggers going to the backup light relay, I need to isolate them from each other with a diode. My question is with the 790 having two inputs will this work for my application? I would assume that each input would require its own diode to prevent one source from backfeeding into the other. Thanks
asked by: Justin S
Expert Reply:
The Roadmaster Hy-Power Diode # RM-790 will work well to prevent back-feeding for your application. You will only need one diode for the system.
The wire from the trailer connector will connect at one post on the "in" side, and the wire from the switch will connect at the other post on the "in" side. The wires going to the lights will come from the post on the "out" side.
Product Page this Question was Asked From
Roadmaster Hy-Power Diode - (Qty 1)
- Accessories and Parts
- Flat Tow Wiring Harness
- Diodes
- Roadmaster
more information >
Continue Researching
- Shop: Roadmaster Single Park Light Diode
- Shop: Roadmaster Hy-Power Diode - (Qty 1)
- Q&A: Combining Brake and Turn Signals on 2001 Jeep Cherokee
- Shop: MORryde X-Factor Crossmember Adapter Kit for Drop Down Applications
- Search Results: led lights
- Search Results: rm790
- Search Results: junction box
- Search Results: roadmaster diode
- Search Results: round led tail light
- Shop: Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Round - Red/Clear Lens
- Shop: Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS
- Shop: Curt Cold Weather 7-Way RV Style Connector - Trailer End - 10' Long - RV Standard
- Shop: Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens
- Shop: Vehicle Tow Bar Wiring
- Q&A: Availability of a Round 4 inch Diameter Flush Mounted Clearance Light
- Q&A: Should I Use Manual Adjusting Or Self Adjusting Brakes On My Enclosed Trailer?
- Q&A: Parts Needed to Rewire a Trailer w/ Electric Brakes
- Q&A: Troubleshooting Running Lights Circuit on a Travel Trailer Tail Light Harness
- Q&A: Solution For 7-Way Cord That Becomes Rigin In The Cold Weather
- Q&A: Can Hydraulic Brakes of Demco Tow Dolly be Converted to Electric Brakes
- Video: MORryde X-Factor Crossmember Installation - 2020 Grand Design Momentum 5W Toy Hauler
- Search Results: tie plate
- Search Results: roadmaster comfort ride
- Video: Checking Out the Roadmaster Hy-Power Diode
- Video: An In-Depth Look at the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring

