Join Date: Feb 2014
Location: Waldorf MD
Trailer Brake Control Output 2015 Ford F150
A few things before I get into the meat and potatoes of the post. If this has been discussed, I apologize for bringing it up again, I just couldn't find anything related to my specific issue. And hopefully the title of the thread is good enough to reach the target audience, since I am guessing the number of 2015 F150 owners is much smaller than the number of 2005-2014, lol.
Anyways, the backstory. Wife and I were paying 2 car loans (2013 F150, 2013 Ford CMAX). She was informed she would be getting a company vehicle. Awesome. So we no longer needed 2 car payments. So to rectify the car payment situation, we traded both vehicles for a brand new 2015 F150. The previous truck was 3.5 Eco, SCrew, 5.5 bed, 4X4, with a tow package (not max tow) and 3.31 gears. We had purchased that truck before we got into the world of Travel Trailer ownership, so this time we decided to buy a vehicle with that in mind. So the 2015 is the 3.5 Eco, SCrew, 4X4, Max tow (w/ telescoping mirrors that for some reason is no longer standard with max tow, you have to pay $300 for it...), 3.55 gears. The works. It came with a bunch of stuff we didn't need, but to find all the stuff we wanted we took what we could get, lol.
Now, to the issue. In my previous truck (both have the integrated trailer brake control), I had the gain set at 5.5, and everything worked flawlessly. In my new truck, I have played with the gain, but that really hasn't had any impact on my problem. And whenever I research the issue, I get plenty of info and videos about the gain, so I am a master at the ins and outs of that at this point. But it doesn't appear that there is any way to adjust the "output" of the brake. What I mean is, when I have the trailer info on my info screen in the dash, there is two meters that I can see. 1 represents the gain, pretty straightforward, the other represents the output. Off the top of my head I believe there are 5 bars for output. On my previous truck, the harder I pressed the brake, the more output bars would change from gray to green (telling me that there was output to the trailer brakes, and as I increased braking the trailer would also increase braking, makes sense to me). Now, in the new truck, I cant get the output to get beyond 2 bars. And really, it is only 1 bar. The only time I can ever see 2 bars is if I am stopped, and I push the pedal til I cant push it anymore, then sometimes a second bar will change from gray to green.
So I have 2 problems in this scenario. First, I cant find any way to make an adjustment to increase the output. So when I am driving, I am forced to reach down and manually slide the controller to manually apply the trailer brakes because the output to the trailer just isn't adequate. the second issue with this, is that the truck computer (this is my opinion, I don't know this for a fact) appears to be smart enough to know that the output isn't adequate, and it uses the engine brake to make up for the lack of trailer brake. The engine braking in this scenario is so aggressive, that it has downshifted all the way to 2nd gear (from 5th) going 55 mph. It was shocking to say the least, to have the truck drop it into 2nd gear at that speed, and seeing the RPM jump to about 5600 when it happened.
Are there any people who have seen an issue like this? Is there an adjustment I can make? Etc. In my previous truck, I hooked it up, and it worked. So I have limited experience with the brake controller. I just need to increase the output to the trailer, and no one that I have talked seems to have a solution. The forums always have some answers or some possibilities to investigate, so hopefully you can help me out
(Assuming the attached pic uploads and everyone can see it). The pic is not my truck, but that is basically what I have for the display. You can see on the left is the gain setting, and on the right is the output. There "isn't enough brake pedal" for me to get the output to max out
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