Can Tuson DirecLink Brake Controller 335DL-100 Install on 2016 Volvo VNL780
Question:
2016 vnl780, does it require a special adapter for any portion of the installation? Does the factory wiring in the Volvo harness include electric brake capability?
asked by: Randy
Expert Reply:
I don't believe a 2016 Volvo VNL780 has electric brake wiring since they are setup for the air brakes of a semi truck trailer but the Tuson DirecLink Base Model Trailer Brake Controller # 335DL-100 can still be used as long as it has a 12 volt electrical system. You'd just need to hardwire the controller to the truck using it's included universal wiring harness.
The white wire goes to ground, black to 12 volt power, red to a stoplight circuit (typically at the brake pedal switch), and blue to the trailer wiring connector circuit for the brake output circuit.

Product Page this Question was Asked From
Tuson DirecLink Base Model Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Plug-In
- Under-Dash Box
- Under-Dash
- Up to 4 Axles
- LCD Display
- Multiple Trailers
- Tuson RV Brakes
more information >
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Randy H.
5/23/2024
I asked a question about installing the electric brake controller in my vnl Volvo. A more direct question would be: is there a wire harness connector that plugs into the diagnostic port such as ob2 to pick-up progressive braking signals?