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Old 02-11-2019, 06:47 AM   #1
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Brake Controller on Both Trailer and Tow Vehicle?

I have a question that I hope will be simple? We have a 22FB with a trailer mounted brake controller and will be purchasing an F-150 with built in brake controller. How do I handle having two brake controllers? Do I just ignore the one on the trailer and leave its vehicle remote disconnected so it doesn't activate? Thank you!
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Old 02-11-2019, 07:07 AM   #2
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Does the trailer 7-way plug in to the trailer mounted brake controller? If so, unplug it and plug it into the truck.
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Old 02-11-2019, 07:36 AM   #3
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I’d just remove the trailer mounted and use the truck. The built in controllers work great.
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Old 02-12-2019, 07:23 AM   #4
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Thanks all for your advice! Andy
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Old 02-12-2019, 07:54 AM   #5
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Can anybody enlighten a bit, never heard of a brake controller mounted on a trailer? Pics or link would be interesting.
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Old 02-12-2019, 08:11 AM   #6
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Quote:
Originally Posted by aziskind View Post
I have a question that I hope will be simple? We have a 22FB with a trailer mounted brake controller and will be purchasing an F-150 with built in brake controller. How do I handle having two brake controllers? Do I just ignore the one on the trailer and leave its vehicle remote disconnected so it doesn't activate? Thank you!
Are you referring to the emergency break-away brake controller with the detachable pin and cable? That is a separate braking system that must be left intact and connected to battery power.
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Old 02-12-2019, 11:02 AM   #7
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I think the OP is a bit fuzzy on what is going on with his brakes. Maybe the best thing is to go to the dealer he bought it from and talk to the service manager.

If he bought used, even then just go to a dealership or maybe camping world service department and have someone explain how brakes work.

No way does he have a brake controller mounted on his AS. He must be talking about the breakaway switch.

And as we all know, don't pull the breakaway switch instead of using chocks.
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Old 02-12-2019, 12:12 PM   #8
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The RF style brake control module mounts on the trailer tongue. The umbilical cable connects to the module and the module has an umbilical that connects to the tow vehicle 7-pin connector. https://www.amazon.com/Tekonsha-9025...a-436206402953

To use the truck brake module, remove the brake control module from the trailer and connect the trailer umbilical to the tow vehicle. Do not plug in the prior control remote. Use the truck dedicated controls.

Note - if the existing module is left in place, it will provide a braking signal to the trailer when the rig slows. It does not need the remote to be plugged in and powered. It does need that remote powered to activate the brakes in an emergency.

Note - the break away switch is not connected to the umbilical cable.

If the above is not logical, get professional help to work out the correct installation and explain it to you. This is important. Do not tow your trailer until you understand how the brakes function. You may never need to over-ride the brake control, but you must understand how and why to do that. Consider it part of towing 101.

Apology to those offering info. The RF control is a different system.

Travel safe. Enjoy your new coach. Pat
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Old 02-12-2019, 01:37 PM   #9
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Originally Posted by PKI View Post

Note - if the existing module is left in place, it will provide a braking signal to the trailer when the rig slows. It does not need the remote to be plugged in and powered. It does need that remote powered to activate the brakes in an emergency.

Note - the break away switch is not connected to the umbilical cable.

If the above is not logical, get professional help to work out the correct installation and explain it to you. This is important. Do not tow your trailer until you understand how the brakes function. You may never need to over-ride the brake control, but you must understand how and why to do that. Consider it part of towing 101.

Apology to those offering info. The RF control is a different system.

Travel safe. Enjoy your new coach. Pat

No Pat -


The Tekonsha RF only sends a signal if the 7-way is plugged into the trailer unit - if not, then it just sits there unpowered.



I know - I have one - & rent Enterprise trucks all of which have their own controllers (F250, RAM2500).



I prefer to use the RF unit because I can keep the control unit in my lap/seat close at hand in case I need to use the boost button - rather then searching & reaching for the built-in controller's boost button on the lower dash, while trying the maintain control of the rig!



Andy - you can use either brake controller you prefer - depending upon which -



> if the RF on trailer, then plug the trailer's 7-pin into the Tekonsha box, & the the Tekonsha box's 7-pin into the truck/TV.


> if the truck/TV controller, then unplug the trailer's 7-pin from the RF's box, & directly into the Truck/TV.


Try them both & try out using the boost button for both, then decide.


Either way, just leave the trailer RF box on the trailer, & take the RF controller with you on trips, just in case you'd need to tow in an emergency with a TV not equipped, &/or if you have multiple TVs & not all with their own built-in controllers.


My guess is that you'll prefer the ease of the hand-held RF controller, rather than reaching for the one on the dash.


Cheers!


Tom
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Old 02-12-2019, 02:55 PM   #10
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A pic from the OP sure would be nice.
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Old 02-12-2019, 03:03 PM   #11
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It surely will make a few of these posts obsolete.
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Old 02-12-2019, 05:21 PM   #12
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Originally Posted by Tom_T View Post
No Pat -


The Tekonsha RF only sends a signal if the 7-way is plugged into the trailer unit - if not, then it just sits there unpowered.



I know - I have one - & rent Enterprise trucks all of which have their own controllers (F250, RAM2500).



I prefer to use the RF unit because I can keep the control unit in my lap/seat close at hand in case I need to use the boost button - rather then searching & reaching for the built-in controller's boost button on the lower dash, while trying the maintain control of the rig!



Andy - you can use either brake controller you prefer - depending upon which -



> if the RF on trailer, then plug the trailer's 7-pin into the Tekonsha box, & the the Tekonsha box's 7-pin into the truck/TV.


> if the truck/TV controller, then unplug the trailer's 7-pin from the RF's box, & directly into the Truck/TV.


Try them both & try out using the boost button for both, then decide.


Either way, just leave the trailer RF box on the trailer, & take the RF controller with you on trips, just in case you'd need to tow in an emergency with a TV not equipped, &/or if you have multiple TVs & not all with their own built-in controllers.


My guess is that you'll prefer the ease of the hand-held RF controller, rather than reaching for the one on the dash.


Cheers!


Tom
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I too have a Tekonsha RF and a Tundra with built in controller. I just use the Tekonsh and ignore the truck controller.
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Old 02-12-2019, 10:41 PM   #13
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Quote:
Originally Posted by Tom_T View Post
No Pat -- snip --
"Do I just ignore the one on the trailer and leave its vehicle remote disconnected so it doesn't activate?"

"If the existing module is left in place"

Disconnecting the module fron the umbilical is not leaving it in place.

Thanks for clearing up the confusion. Pat
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Old 02-12-2019, 11:42 PM   #14
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Quote:
Originally Posted by PKI View Post
"Do I just ignore the one on the trailer and leave its vehicle remote disconnected so it doesn't activate?"

"If the existing module is left in place"

Disconnecting the module fron the umbilical is not leaving it in place.

Thanks for clearing up the confusion. Pat

Just to be clear -



You only need to use & plug-in the hand unit in the cab when you're using the trailer mounted RF. I suggested bringing it along on trips in case needed for a non-brake-controller equipped TV used in a pinch.



Disconnecting the RF module on the trailer from the trailer's 7-pin, but leaving the module in-place - i.e.: leaving it mounted on the trailer's tongue - leaves it inert, & there is no reason to remove it from the trailer.


If the OP wants to use the TV's controller, then disconnect the 7-pin - leaving the RF module in place & forget about it.



It won't send any sort of confusing signal to the trailer brakes nor to the TV/controller when disconnected.



IIRC - if the OP plugged in the hand-controller into the 12v/Cig. Lighter socket in the cab - while the RF Controller box on the trailer is not connected to the 7-pin, then it will just show "n.c." on the screen of the hand unit.



I don't know if that clears it up, but I tried!


Cheers!
Tom
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