Determining What 4 Wires that Run to Trailer Hub are For
Updated 07/16/2019 | Published 07/14/2019 >
Question:
O I have an old two hub brake system There 4 wires at the hub. How do the two wires hook up to this system
asked by: Stew D
Expert Reply:
You'll probably have to pull off the hub/drums to see where the wires go. It's most likely that your assemblies have two magnets and two of the wires are power and two are ground, one for each magnet, but since your configurations is not standard we'll have to look further into what's going on with the assemblies. Can you get me pictures possibly of the magnets?
If you see two wires ran to each magnet you'll need to run a power circuit and a ground to each of them since they are not polarity sensitive.
Product Page this Question was Asked From
35 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 42" Ground
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 4 Flat
- Plug and Lead
- Optronics
more information >
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Trailer Lighting Requirements
- Q&A: Why Does 4-Pin Trailer Wiring Have 5 Wires
- Q&A: Do Thinline LED Clearance and Side Marker Lights Come With Bracket and Wiring
- Q&A: Mounting Pattern on Trailer Side of CE Smith Extra Long Trailer Tongue
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Dimensions of etrailer Single Axle Trailer Fender w/ Side Steps # HP93RR
- Q&A: Circuit Tester for Testing Trailer wiring Circuits
- Q&A: Wishbone Trailer Wiring Harness to Run 2 Sets of Trailer Lights
- Q&A: What Gauge Wire does 4-Way Trailer Wiring Use
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: How to Bleed Your Trailer Surge Brakes
- Article: Troubleshooting 4 and 5-Way Wiring Installations

