Harness plug leaking

[Don gauldin]

6l80 transmission from 2010 . I just put it in it is used . I only have 1st and reverse. When I checked back plug for harness ( harness is new) there are no leaks when I unplug it plug is full of fluid and if I leave it unplugged it drips fluid does this need to be dry ? 

[carnau]

4 hours ago, Don gauldin said:

6l80 transmission from 2010 . I just put it in it is used . I only have 1st and reverse. When I checked back plug for harness ( harness is new) there are no leaks when I unplug it plug is full of fluid and if I leave it unplugged it drips fluid does this need to be dry ? 

Transmission control module will have to be programmed to the new vin ect. If not you're not going to shift right. As far as the plug... Something is definitely wrong there.

[The Transmission guy]

Yes, I work on these Transmissions. The Transmission Tcm will need to be programmed. Also the pass thru connector will need to be resealed possibly a new TCM which bolts to the valve body.