Hitch Lights Connector Issue

[mrplayer67]

I got an adapter to connect the 4 pin connector on my 03' Explorer to the 7 prong round adapter on our 97' Viking trailer.

When put together I still have no power to the lights on the trailer. The 4 pin connector on the Explorer has some green in it (oxidation?). Might that be the issue? Not all the holes have it, yet I got zero activity on the trailer lights.

Any advice on possibly cleaning the holes on the 4 pin flat adapter, or what else might be the problem?

I really wanted to hitch up for the first time and get some parking lot practice this weekend, but as of this moment those plans are canceled [!]

HELP!

mrplayer67

 

[vp6799]

Try to clean out the connector first. If that doesn't work, use a test meter and check for power on the four pin plug. If you don't get power there, then check out your fuses.

Vic

 

[DeRocha]

Whenever my trailer lights don't work its because of the oxidation on the connector pins..

 

[Crankcase]

Also, the 7 pin plug on the trailer is there for a reason....Does the trailer have a battery inside that needs charging? Or electric brakes? If it does, you will need the proper 7 pin connector on Your Explorer.

 

[grumpy]

The first thing I did when I got my Explorer was cut the flat connector off and replace it with a round one that fits my boat trailer. My boat trailer had a flat one on it when I got it and the first thing I did was cut it off and put a round one on it. I like round connectors.