Primus Brake Controller Does Not Show Output with Brake Pedal
Question:
When you press the manual braking button a number comes up to show you how much brake is being applied to the trailer brakes. If you are depressing the brake pedal, which should be applying brakes to the tow vehicle and the trailer, and the display doesnt show a number like when you press the manual button but just displays .c, is there a problem with the brake control unit? Are the brakes to the trailer not being applied? In other words, if Im hitting the brakes which should be the tow vehicle and trailer brakes together, should the display change to a number rather than continue to just read .c or .c. if I have boost enabled?
asked by: Levi
Expert Reply:
You should be seeing an output number when you are using the brake pedal just like you would when using the manual override on the Primus brake controller # TK90160. If it is not that indicates a problem on the red wire which is input from the brake switch.
You can use a circuit tester such as # PTW2993 to test the red wire. It should show power when you step on the brake pedal. If it does not, then it is either connected to the wrong brake switch wire or you could have a blown stop light or CHMSL fuse.
Products Referenced in This Question
Product Page this Question was Asked From
Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 3 Axles
- LED Display
- Up to 90 Degrees
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Troubleshooting No Power on the Blue Brake Output Wire from a Brake Controller
- Shop: Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End
- Search Results: tekonsha 6927
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Q&A: 7-Way Trailer Plug Adapter or Compatibility with Lance Slide-In Truck Bed Camper
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Video: Choosing the Right Trailer Wiring
- Search Results: brake controller
- Video: Choosing the Right Brake Controller
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: junction box
- Shop: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: trailer brake controller
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Q&A: How To Plug 1997 Lance Truck Camper Into 7-way Connector On 2016 Ford F-250
- Q&A: Replacement Drum Brake Actuator for a 1995 4 Winns Model 3916 Trailer
- Article: How to Measure for Trailer Hitch Drop
- Search Results: trailer wiring
- Shop: Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Shop: Base Plate for Tow Bar
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Vehicle Tow Bar Wiring
- Shop: Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS
- Search Results: breakaway switch
- Article: Brake Controller Installation: Starting from Scratch
on Trailer Brake Controller
