2011 Nissan Xterra 12 Volt and Brake Output Circuits are Swapped
Question:
Installed this product, no problems. Super easy to install. When I pulled out of the driveway the trailer brakes were engaged, constantly. Traced wiring back to the Nissan port with the black and blue wire. Everything works great, until at the 2-wire black-blue post coming from the vehicle...My blue wire supposed to go for trailer brakes, correct? has constant power. The black wired has NO power whether the vehicle brakes are engaged or not. My not-so-ideal solution for the time being was to disconnect the trailer brakes so that I could get on the road. I can see that this reverse wiring is an identified issue, but can you help me out on the no power going at the black wire? It is supposed to be hot all the time, I believe. If this question has already been answered I apologize...So much to sort through here...i just missed it.
asked by: Casey
Expert Reply:
Like you said, for some reason some Nissan vehicles have those blue and black wires switched. You would have to swap their positions to keep the trailer brakes from being locked all the time.
Normally, the black wire is the 12 volt circuit and the blue wire is output to the trailer brakes. There should not be constant power out to the brakes or they will lock up.
And there would only be power on the brake output wire if you are using a brake controller (and when sitting still there may not be voltage on that wire because the controller needs to sense movement for it to send power back when you step on the brake pedal). It should show power though when a brake controller manual override is used sitting still or not.
For a brake controller I recommend the P2 # 90885 and you will also need cable # 3050-P to install it.
Products Referenced in This Question
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Nissan and Infiniti
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
more information >
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Video: Roadmaster Skid Wheels - Hitch Mount - RM-050 Review
- Shop: Adjustable Ball Mount for 2" Hitches - 9" Rise to 10-1/4" Drop - 5,000 lbs
- Shop: Roadmaster Rollaway Trailer Hitch Protector
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Article: Steel vs. Aluminum Ball Mounts
- Search Results: steel rollers
- Video: Andersen Ball Mounts - Adjustable Ball Mount - AM3411 Review
- Q&A: Roadmaster Rollaway Trailer Hitch Protector With Hitch That Has Chain Tabs Below Receiver
- Q&A: Skid Wheel Preventing Trailer Hitch Bottoming Out on Steep Driveway
- Q&A: Is the Roadmaster Rollaway Trailer Hitch Protector Heavy Duty Enough for Use on a 37 Ft Motor Home
- Shop: Ultra-Fab Steel Roller for RVs with 2" Trailer Hitches
- Shop: Hub Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Q&A: Skid Wheel Needed for Coupler with Safety Chains Loops in the Way of Hitch Pin Mounted Wheel
- Shop: #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axles - 4" Drop
- Shop: Ultra-Fab Hitch Mounted Steel Rollers for RVs w/ 3" Hitch Tubing - 3" Diameter - Qty 2
- Video: Choosing the Right Trailer Wiring
- Shop: Trailer Wiring
- Search Results: hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Brake Controller
- Search Results: trailer hitch
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Search Results: 90160
- Video: Choosing the Right Brake Controller
on Custom Fit Vehicle Wiring
