Troubleshooting Prodigy P2 Brake Controller with NC No Trailer Connected Error Code
Question:
purchased your prodigy p2 brake controller and adaptor for the plug under the dash for my 2016 F 150 / travel trailer. Installed both, connected the trailer.....lights and brakes work....controller shows NC error. What did I do wrong? followed your install video for the controller and the hitch connector, Do I need to install more relays and or wiring above and beyond what is shown on video?
asked by: Kevin
Expert Reply:
The NC on your Prodigy P2 # 90885 means there is no trailer connection being recognized. Usually this is due to the controller not seeing enough power draw on the 5 o'clock pin of the 7-way (the brake controller output). This can be as basic as needing to clean your connections with a little sandpaper or steel wool, a bad ground connection due to rust or debris on your trailer, or as big as a short in that wire.
I recommend using a circuit tester like # PTW2993 to check that pin for signal. When you use the circuit tester and touch that pin, the controller should read a connection because the incandescent bulb will pull enough power to register. Then the bulb should increase in brightness as you slowly adjust the manual slide. If this does not happen, then you have a short and will need to trace the wire and find the short. You can probe the wire every few feet to determine if you have signal.
If you have signal at your 7-way then clean your connections on your vehicle side and trailer side connections and then reconnect using a little dielectric grease # 11755 to keep the connection clean and keep moisture and debris out. Then check your ground connection on your trailer's main ground and then check the ground at each of your brake magnets.
Products Referenced in This Question
Dielectric Grease for Electrical Connectors, 2 oz.
- Accessories and Parts
- Trailer Wiring
- Wiring
- Dielectric Grease
- LubriMatic
more information >
Product Page this Question was Asked From
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 >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Dielectric Grease for Electrical Connectors, 2 oz.
- Shop: Trailer Wiring
- Video: Performance Tool Hook Probe Circuit Tester Review
- Shop: RV Camera
- Shop: Curt 7-Way to RV Socket LED Circuit Tester - Vehicle End
- Shop: Tekonsha 7-Way, RV-Style Tester for Brake Controllers - LED Test Lights
- Shop: Furrion Vision S Wireless RV Backup Camera System w/ Night Vision - Rear Mount - 5" Screen
- Q&A: Recommended 7-Way Tester that is Compatible w/ Ram Factory Brake Controllers
- Shop: Hook Probe Circuit Tester
- Shop: Cordless Circuit Tester
- Q&A: How to Disconnect Trailer Brake Controller Wiring Harness
- Q&A: Prodigy Brake Controller Only Shows n.c Code after Charging the Vehicle Battery
- Q&A: What Causes a No Connection Reading in the Display of My Brake Controller On MY 2003 Chevy Truck
- Search Results: fuel station
- Q&A: Choosing OEM or Aftermarket 5th Wheel Puck System for 2021 Ford F-250
- Article: Troubleshooting Brake Controller Installations
- Article: Brake Controller Installation: Starting from Scratch
- Search Results: trailer plug harness
- Search Results: 7 pin cable trailer wire
- Search Results: trailer wire
- Search Results: adapter 7 flat to 7 round
- Search Results: trailer plug
- Video: EZ Connector Magnetic 7-Way Trailer Connectors Review
- Video: Pollak Custom Fit Vehicle Wiring - Fifth Wheel and Gooseneck Wiring - PK11893-11932 Review
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2012 Chevrolet Silverado
- Video: LubriMatic Wiring 11755 Review
- Video: Performance Tool Cordless Circuit Tester Review
- Q&A: Testing for Proper Voltage on the Brake Output Circuit
John
6/28/2020
why does my 2 hour old installation of the Prodogy P2 cycle through all the numbers .9 to 1.6 while driving un hitched and no trailer hitched attached while it is cycling thru