Plug???

[geronimo]

First let me start by apologizing for not knowing the correct terms. Now let me try to explain...The left break light wasn't working on my TT. We fiddle with the bulb and was able to get it to work only to find out it went out again. Took the TT to the dealer to have other work done and asked them to check it out. They said everything was fine with the TT it must be the tow vehicle. Had the tow vehicle checked  out. My mechanic couldn't find anything wrong.

 Someone told us it may just be the plug (sorry don't know the correct term). Anyway the next time we used it everything seemed fine. Today when we hooked up the unit the break lights/blinkers weren't working. We took the plug out and put it back in again and all was fine...until we returned home and found the plug completely out..... I have no idea what to do......Hoping someone out there has a suggestion.....thanks....

[AZsix]

It could be that your plug is lose and not making a good connection. When I drove tractor trailer I often ran into this problem when hooking to a different trailer. To get the lights to work I had to wedge something under the plug so that it didn't have any play in it. Have someone jiggle the plug while you watch the lights to see if it has any effect. If it does than you know it's the connection. You could try cleaning them or you may need to change the plug.

Good luck

[austinado16]

^^ Sage advice right there!

The plug (electrical connector) from the trailer shouldn't normally just "fall out" going down the road.  So I'd suggest you inspect it and the receptical on your tow vehicle, and make sure that they are engaging fully and that what ever catches and retains the connector, is working properly.

You don't say if you have a flat 4 connector, a 5 pin, 6 pin, or 7 pin.  The flat 4 just presses into place and will stay.  The 7 pin has a catch on the receptical lid that catches the connector from the trailer and keeps it from backing out.  I'd guess the 5 and 6 have something also.

Spray up into both parts with WD-40 and then plug-in and unplug a bunch of times, and see if that helps.

[PattieAM]

If you have the Bargman 7-pin connector, once you've cleaned the contacts, you might coat it with Di-electric grease (available in tube or spray type can).  This will help prevent corrosion and improve connectivity.

Your tow vehicles receptical (thing you plug the trailer pigtail into) should have a rubber 'cap' and if the pig-tail is inserted correctly the notch on the cap should lock in the pigtail.

[geronimo]

Thanks for the advice.... Just when I think we've get everything under control something else goes wrong. We are however always learning something.... today we learned that we have a 6 pin connector....( I also learned they are called recptical /connector)
Thanks for the help.....

^^ Sage advice right there!

The plug (electrical connector) from the trailer shouldn't normally just "fall out" going down the road.  So I'd suggest you inspect it and the receptical on your tow vehicle, and make sure that they are engaging fully and that what ever catches and retains the connector, is working properly.

You don't say if you have a flat 4 connector, a 5 pin, 6 pin, or 7 pin.  The flat 4 just presses into place and will stay.  The 7 pin has a catch on the receptical lid that catches the connector from the trailer and keeps it from backing out.  I'd guess the 5 and 6 have something also.

Spray up into both parts with WD-40 and then plug-in and unplug a bunch of times, and see if that helps.