What Function is Carried on Center Pin of 6-Way Round Trailer Connectors
Question:
On the middle inlet that says battery . where did we run that from battery or some other source
asked by: Ricky
Expert Reply:
A 6-way round-pin trailer plug like Pollak # PK11604 has a center pin that can be wired in two ways.
The most common function to be found on that center pin is 12V trailer power. This is a low-level maintenance charge that will maintain a charged trailer battery while you're driving. In other applications this center pin will carry the trailer brake signal from the brake controller mounted in the tow vehicle.
Please refer to the linked photo that shows both inside and outside views of a 6-way in both types of wiring configuration.
If your trailer is wired to have the center pin be 12V power then on the trailer this should be run to your breakaway/trailer battery. If it is wired to carry the brake controller's output signal then it should be routed to either of the two wires on each of the electric brake assemblies.
If you need to confirm which function is on your trailer plug's center pin just use a 12V battery (one in a vehicle or a spare if you have one) to apply power to the trailer's pins. You'll then see which function activates. If your center pin carries the brake circuit then you'll hear and feel the brakes engage when power is applied.
Product Page this Question was Asked From
Pollak 6-Pole, Round Pin, Trailer Wiring Connector - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- Plug Only
- 6 Round
- Pollak
more information >
Continue Researching
- Shop: Base Plate for Tow Bar
- Shop: Vehicle Tow Bar Wiring
- Shop: Brake Controller
- Shop: Vehicle Tow Bar Brake System
- Shop: Trailer Wiring
- Shop: Trailer Hitch
- Shop: Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Shop: Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Shop: TRED GT Wheel Chocks - Polyurethane - Black - Qty 2
- Article: Trailer Wiring Diagrams
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Article: Brake Controller Installation: Starting from Scratch
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Search Results: wheel chock
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: stop light switch
- Search Results: brake light switch
- Search Results: affirm
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Wiring Diagram for the Adapter 6-Pole to 7-Pole Trailer Wiring Adapter # 47435
- Search Results: rm~152~1676~7
- Video: Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord Review
- Q&A: How to Wire Trailer 6-Pole Connector to Provide 12V Battery Charge Circuit
- Video: Roadmaster Tow Bar Wiring Kit Installation - 2018 GMC Sierra 1500
- Search Results: hm47054
- Video: Blue Ox Tow Bar Wiring - Bypasses Vehicle Wiring - BX88271 Review
- Search Results: bx2258