Forum Discussion
noteven
Apr 24, 2018Explorer III
Lynnmor wrote:
Unless the vehicle has a useable hydraulic pressure sensor, the DirecLink is probably using the wheel speed sensors to detect the need and amount of braking. Again, the consumer should be informed about how it works. If you are contemplating buying one, you might want to find that pressure sensor and then ask if it is the reference device. Some trucks have a simple on-off switch to detect brake pedal position for the ABS and a pressure sensor imbedded in the ABS valving. I have no clue if those can deliver any meaningful information to the brake controller, or if they are even read.
My DirecLink connects via the OBD connection for vehicle data. It literally plugged into the OBD and the factory trailer wiring connection in the cab. I had to install the holder for the little handset. I think OBD output is standardized in vehicles. They are also being used in air brake tow vehicles, connected via OBD.
When you call them they will answer all your questions.
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