Today while on our way to San Diego the brakes on our 2012 Jayco Eagle 5er stopped working. At first it was intermittent then they just stopped all together. Our TV is a 2007 Ford with an integrated brake controller. I have checked all fuses on the truck and confirmed that there is power to the trailer plug so the problem must be in the trailer but I don't even begin to know how to trouble shoot this. We are currently in an RV park in tehachapi CA with reservations for tomorrow in SD. HELP!!!

Check your ground connection. Are the trailer lights working properly?

Dtaylor wrote:Check your ground connection. Are the trailer lights working properly?Trailer lights are all working fine

Pull the emergency brake cable and do a pull test to see if the brakes work. Do not plug the trailer brake/lights cable in while doing this test. If the brakes work in this test then look at wiring or clean the electrical plug with contact cleaner. Chris

I agree with the others on checking the ground connections.You say that there is voltage at the plug, but is that at the brake terminal or at the 12 volt battery charge terminal? There should be only be voltage at the brake terminal when the brake pedal is pushed. JMO

On our last truck I though that the trailer brakes were bad and found out it was my truck brake controller.

Help trailer brakes went out (UPDATE) | Good Sam Community

Dtaylor
Explorer
Jan 26, 2014
Check your ground connection. Are the trailer lights working properly?
57_Panhead
Explorer
Jan 26, 2014
Dtaylor wrote:
Check your ground connection. Are the trailer lights working properly?

Trailer lights are all working fine
Me_Again
Explorer III
Jan 26, 2014
Pull the emergency brake cable and do a pull test to see if the brakes work. Do not plug the trailer brake/lights cable in while doing this test. If the brakes work in this test then look at wiring or clean the electrical plug with contact cleaner. Chris
BTPO1
Explorer
Jan 26, 2014
I agree with the others on checking the ground connections.

You say that there is voltage at the plug, but is that at the brake terminal or at the 12 volt battery charge terminal? There should be only be voltage at the brake terminal when the brake pedal is pushed. JMO
Traveler_II
Explorer
Jan 26, 2014
On our last truck I though that the trailer brakes were bad and found out it was my truck brake controller.
57_Panhead
Explorer
Jan 26, 2014
BTPO1 wrote:
I agree with the others on checking the ground connections.

You say that there is voltage at the plug, but is that at the brake terminal or at the 12 volt battery charge terminal? There should be only be voltage at the brake terminal when the brake pedal is pushed. JMO

I have confirmed that when the controller is activated that there is power to the trailer brake terminal on the plug.

Steve
Me_Again
Explorer III
Jan 26, 2014
So pull the emergency cable AMD test the brakes. Chris
AYRTIME
Explorer
Jan 26, 2014
Apply and release the trailer brakes several times with the controller and have someone listen for a hummm at each wheel.
AYRTIME
Explorer
Jan 26, 2014
Apply and release the trailer brakes several times with the controller and have someone listen for a hummm at each wheel.
btd35
Explorer
Jan 26, 2014
Listen to Chris. Pull the emergency brake pin with it disconnected from the truck. If they work then check your wiring at the plug on the trailer, or get yourself a 12 volt needle light tester and check for voltage on the trailer lighting. I've had times the truck outlet has power, but the trailer plug did not make a good connection with it.