28
May
The OEM brake controller will not work if it sees a trailer brake fault like a disconnect. Corrosion can occur inside a connector too so youll want to re-inspect both the external contacts and the backinside of the connectors if possible for signs of any corrosion.
One other idea is to check the cord plug of the suspect trailer.
Light electric trailer brake disconnected. No you just have a 12v dedicated power in the 7 pin going to the trailer for that battery and the main battery. That warning light is checking the circuit that should be completed for the trucks brake controller to activate the trailer brakes I would check grounds on the brakes and wires in the connector on the trailer. When I slow down to a stop it reconnects and dings once.
As I accelerate from the stop I get the disconnected message again. This thing is constantly dinging and telling me the trailer status connecteddisconnectedconnecteddisconnected and is driving me crazy. The brakes seem to work fine even when the status is Disconnected.
You can test the trailer by keeping it disconnected from the truck and applying 12V power directly to the brake circuit contact. On a trailer plug this will be the pin indicated by the arrow shown in. Electric brakes use Magnets to activate them it could be one of you brake magnets are bad or out of limits causing the issue.
It also could be corrosion in the wiring harness any place there is a tap connector or solder joint could be a cause of corrosion and. The most common cause for a trailer brake controller to display the no trailer connected error message is a damaged or corroded connector on the trailer. Corrosion can occur inside a connector too so youll want to re-inspect both the external contacts and the backinside of the connectors if possible for signs of any corrosion.
All trailer lights including brake lights are working even though we are getting the disconnect message – but no brakes. Checked the junction box in the pin box and unscrewed ground and brake connections reconnected manipulated them while checking the dashboard but it says we are still disconnected. On the way home today my trailer brake disconnectedcheck trailer wiring warning came up even though I was not hooked up to anything.
When I got home I investigated and found that it was a little moist and even more corroded around those two pins. If your trailers electric drum brakes are locking up even when the trailer is disconnected from the tow vehicle then it sounds like the battery on the trailer is somehow finding a connection to the brake circuit. This could be from something as simple as a case of corrosion in the trailer connector to damagedshorted wiring along the trailer frame.
Its very possible that the brake controller is having an issue but typically when we see an intermittent brake controller error code the problem is actually just corrosion on the trailer wiring connectors preventing a solid connection. The intermittent trailer disconnected message that is appearing on your 2012 Ram 1500 is generally caused by corrosion in the trailer connectors but since you have already checked that we can eliminate that possible cause. Troubleshooting Tekonsha Voyager Brake Controller Green Light Stays On when Trailer is Disconnected.
My 2012 did this early on in ownership. Make sure that where the front side of plug is firmly seated to the back side behind the bumper. My issue was found that the dash mounted brake controller needed to be replaced.
When the controller was replaced Ive had zero issues since. One other idea is to check the cord plug of the suspect trailer. The OEM brake controller will not work if it sees a trailer brake fault like a disconnect.
The way the disconnect check works is a blip signal is sent on the electric brake wire if resistance is noticed then it confirms to be connected. Just a few things to add to your check list. Inspect and load check the coach battery Ohm out the ground and brakes from the pigtail to see if you have resistance or very little resistance or no resistance.
My problem came from the wires in the axle shorting out somehow. I think they were damaged. I checked on Ford truck message boards and the most common two reasons the Trailer Disconnect Warning comes on is either that there is corrosion or water in the trailer connector there is a short on the wiring behind the trailers connector or the magnets of the trailer are going out.
The last one would be if the trailer was actually. Displaying error SC on the controller and the dash computer saying. Trailer brake disconnected - Check trailer brake wiring.
Went through the trailer top to bottom. Of course I blamed the trailer first. This is the second controller in 6 months.
Did the same thing with my other trailer. How Electric Trailer Brakes Work - YouTube. How Electric Trailer Brakes Work.
If playback doesnt begin shortly try restarting your. If a vehicle with an electric brake controller needs to couple to an Elecbrakes-equipped trailer the Elecbrakes plug and play kit can be bypassed or the service brake wire blue can be disconnected from the trailer plug letting the Elecbrakes unit take over without interference from the tow vehicles brake. Yes but you shouldnt.
Not only will you be relying on the tow vehicles brakes to stop the tow vehicle and the trailer but it may be illegal in a lot of states. Additionally you may not even be able to use the lights on the trailer.