Quote:
Originally Posted by Skip Stone
This forum has provided incredibly useful knowledge from seasoned streamers. I own a 2015 F-150 as my T.V., and since day one I have intermittent dash "trailer disconnect" notifications. I have summarized by T.V. and A.S. possible disconnect causes from the posted information:
T.V.:
1.Computer chip failure in the integrated brake system
2. 7 pin connector: loose connections, inverted plug (see photos)
3. Brake controller looking for brake circuit resistance to verify connection
A.S.:
1. Dexter brakes: magnet contact on inside drum surface and spring
2. Corroded wires up to where wires enter belly pan
3. cable that runs from top of plate to adjusting point
4. faulty trailer plug
I will provide this list to my A.S. dealer in Florida to hopefully correct the disconnect notification. I have also extensively cleaned both terminals on the truck and trailer. My first intervention will be to connect another trailer with a 7 pin connector to see if the notification continues. If there is not a warning, then I can focus on the Airstream. If the warning continues, I may invert the plug as suggested to rule out intermittent plug contact. I have attached pictures of the 2015 F-150 plug housing.
Can anyone provide any additional suggestions? As always I appreciate your advice.
Thanks, Skip
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Our '13 F150 '08 Classic would give this disconnect message on occasions. It always seemed related to the 7 pin connector vibrating loose. Reseating it solved the problem. If not, then cleaning the contacts on both truck and trailer, along with giving the pins a slight bit of twist and pinching the contacts a slight bit closed solved any continuity problems.
One other issue was the Actibrake hydraulic actuator mated to the Ford brake controller. The controller would send a pulse to detect the trailer, which despite the truck set for 'electric over hydraulic', would cause the trailer brakes to grab slightly. Once every three seconds. The solution was a resistance load wired in parallel in the trailer brake circuit in the trailer. A magnet, a resistor, even a light bulb, solves the issue.
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