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I just bought an 31ft Airstream Trailer and I need some help figuring out the brake controller. Mine does not have a digital readout so I am sorta flying blind as to how much braking the trailer is getting. Does the slider control how much braking effort you get when you apply full brakes or does it change the onset slope?
It seems like I got no trailer braking unless the slider was almost all the way to the left. The problem is with that is, that I got all or nothing. It did not seem to be proportional at all. Without a digital readout it is hard to know what effect the slider has.
So do I need a new controller? How does the controller know if you have your foot on the brake or not? There are 4 or 5 wires coming out of it going somewhere.
Well not much at the moment since I am putting a new floor in it.
Perry
If it is a cheapo unit that is worth say $2000, I wouldn't bother to put a high tech unit. OTOH, if I am hauling around something valuable, you bet I will make damn sure it is a good unit.
This is what im running, not expensive but has everything you need, and will cover most anything you can tow, unless you get into the reaaally big stuff. One thing I like is the ability to show output voltage and amperage draw. Tekonsha P3 Electric Brake Control Controller RV Camper - $119.99..
I just bought an 31ft Airstream Trailer and I need some help figuring out the brake controller. Mine does not have a digital readout so I am sorta flying blind as to how much braking the trailer is getting. Does the slider control how much braking effort you get when you apply full brakes or does it change the onset slope?
It seems like I got no trailer braking unless the slider was almost all the way to the left. The problem is with that is, that I got all or nothing. It did not seem to be proportional at all. Without a digital readout it is hard to know what effect the slider has.
So do I need a new controller? How does the controller know if you have your foot on the brake or not? There are 4 or 5 wires coming out of it going somewhere.
Perry
Given the relatively small cost of a good digital controller, if towing somewhat rountinely is in the cards, it may be money well spent.
Given the relatively small cost of a good digital controller, if towing somewhat rountinely is in the cards, it may be money well spent.
My opinion,
Steve
I always said that it is easier to earn money to pay for the necessary stuff like a good controller than it is to pay for damages and mend broken bones.
I am trying to understand how these things work. The old school brake controllers work off of the brake light switch? I assume that they are not proportional and they are just on and off. They attempt to be proportional by putting in a time delay but they don't really. They apply the same amount of braking no matter how much pedal you are using? I guess I was assuming that the brake controller got a signal that was a function of the brake pedal position and was not an on or off sorta thing. I know in the old days they hooked a hydraulic line to the brake controller and there was some sort of pressure sensor that provided a proportional signal to the brakes. The newer proportional controllers now use a g-sensor so they can mirror the braking effort to the trailer.
I am trying to understand how these things work. The old school brake controllers work off of the brake light switch? I assume that they are not proportional and they are just on and off. They attempt to be proportional by putting in a time delay but they don't really. They apply the same amount of braking no matter how much pedal you are using? I guess I was assuming that the brake controller got a signal that was a function of the brake pedal position and was not an on or off sorta thing. I know in the old days they hooked a hydraulic line to the brake controller and there was some sort of pressure sensor that provided a proportional signal to the brakes. The newer proportional controllers now use a g-sensor so they can mirror the braking effort to the trailer.
Perry
If you have a controller with an accelerometer, the controller brain senses the rate at which the truck is slowing and applies the trailer brakes proportionally. They actually work quite well. The more basic timed controllers work in accordance with how long your foot is on the brake pedal, but with an accelerometer, you will not have trailer brakes, unless the truck is stopping or you use the manual slide. With the best controllers (IMHO), you do have some boost while stopped which is adjustable depending on trailer weight.
That's about as confusing as I can say it.
There are many variables. Do you know anyone who currently is towing that might show you the ropes? And, as suggested, download the manual for your controller off the Internet. It will help.
It sounds like I want a proportional controller. I thought the standard controllers were more sophisticated than they are. I guess it is no wonder I could feel the trailer lurch when I took foot off the brake. The standard controllers are full on or full off with some sort of ramp effect based on how long your foot has been on the brake. Sounds kinda crappy to me.
I have a Prodigy P3 and it's the closest I have found to the Ford factory controller. I also bought the harness from the dealer that I bought the controller at and it truly was plug and play. It took longer to decide where to mount the controller than it did to hook it up.