Constant Power on Blue Trailer Brake Wire After Installing 7-Way on 2012 Nissan Frontier
Updated 11/11/2021 | Published 07/14/2016
Question:
I HAVE A CURT TRAILER WIRE C56226 THAT PLUGGED RIGHT IN TO MY 2012 FRONTIER BUT THE BLUE TRAILER BRAKE HAS A CONSTANT 14VOLTS GOING TO IT. MAYBE THE RELAY IS NOT WIRED RIGHT?
asked by: KRIS
Expert Reply:
On wiring harness # C56226 the larger brown relay is for the 12 volt circuit on the 7-Way and the two smaller blue relays are for the turn signal circuits so none of them would cause the constant power draw on the blue brake wire but I think I know what the problem is.
On some Nissan vehicles the connectors where the 7-Way plugs in are wired differently than on other Nissan vehicles. To fix the issue you can swap the blue and black wires on the harness that plugs into the vehicle.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Factory Tow Package
- 7 Blade
- Plug and Lead
- Plug-In
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Parts Needed to Add 7-Way and Brake Controller to 2019 Chevrolet Blazer
- Q&A: Brake Controller Install On 2019 Mercedes-Benz Sprinter 2500 Without Green Plug Under the Seat
- Q&A: Can I Replace My Scissor Jacks on My 2018 Scamp 13 ft with the etrailer Scissor Stabilizer Jacks?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Recommended Wiring Harness and Relays for a 2025 Nissan Frontier
- Q&A: Adding Electric Brakes to 1977 Scamp Trailer with Lippert Torsion Axle
- Q&A: Best Trailer Wiring Harness For 2025 Nissan Frontier S Model
- Q&A: Trailer Hitch & Wiring For 2024 Nissan Frontier
- Article: How to Measure for Trailer Hitch Drop
- Article: Trailer Wiring Diagrams
- Article: Dealer Spotlight - Croft Trailer and Hitches
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Nissan Tow Package Wiring Harness 118266/118267 - 7 Way Harness Installed and Electric Brakes Locked
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
Holly D.
11/8/2021
Can someone please be more specific about HOW you get the blue and black wires out of the plug to switch them. I cannot figure it out and I don't want to break the plug.