I'm a new owner of a 2010 AF 992. I've been fixing up little things on it and the umbilical is a hodgepodge of parts. What is the point of disconnecting it from the camper? I was just going to hard wire a new 7 pin using a trailer box. I don't see any clearance issues loading since it would stick out as far as the current plug.ThanksTodd

Some tow vehicles do not shut off the charge line to the trailer. Disconnecting the umbilical cord prevents the trailer from discharging the tow vehicles battery.Fords for example has a relay that disconnects the 12 volt charge line to the trailer.Other vehicles that do not disconnect charge line can be easily changed by installing a relay operated from a "hot" in run position control circuit.

On the 2017 model Fords on, however, you do not have an active charge lead unless the module detects a trailer brake in the circuit, which is kind of a bummer! I wish they would stop trying to solve problems no one is having!https://fordbbas.com/non-html/Q-263_Trailer_Tow_02212017.pdf

^ interesting. Pretty sure mine is charging but I've never checked it. I do have a backup camera wired to the reverse wire, maybe that's enough for it to detect.

I would check. The reverse pin has no connection to the brake pin on a seven pin connection so no way for the brake controller to sense it.There are quite a few complaints about this on the Internet.

OP was asking about disconnecting the cord from the camper I think. I assume there’s normally a female socket on the camper and uses a double ended cord.Our Eagle Cap is hardwired and not a problem. The cord comes out the side with some sealer around it. When loading I just hang the end up over the jack motor until it’s time to plug into the truck and lower it down.

umbilical hardwire | Good Sam Community

23 Replies

hedge
Explorer
Jun 07, 2018
^ interesting. Pretty sure mine is charging but I've never checked it. I do have a backup camera wired to the reverse wire, maybe that's enough for it to detect.
ardvark
Explorer
Jun 07, 2018
On the 2017 model Fords on, however, you do not have an active charge lead unless the module detects a trailer brake in the circuit, which is kind of a bummer! I wish they would stop trying to solve problems no one is having!

https://fordbbas.com/non-html/Q-263_Trailer_Tow_02212017.pdf
enblethen
Nomad
Jun 07, 2018
Some tow vehicles do not shut off the charge line to the trailer. Disconnecting the umbilical cord prevents the trailer from discharging the tow vehicles battery.
Fords for example has a relay that disconnects the 12 volt charge line to the trailer.

Other vehicles that do not disconnect charge line can be easily changed by installing a relay operated from a "hot" in run position control circuit.

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umbilical hardwire

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