Any dual branded guys familiar with dodge?

[dieseldoc]

Got a 2003 ram 2500 with a gas engine.  Has intermittent issue with the headlights.  Other shops have looked at wiring, replaced the headlight switch 3 times and put a new tipm in it.  Still has the issue of the headlights randomly going out.  I have yet to get it to act up more than one time and lasted just long enough to get the hood open and they came back on and won’t act up since. I found a connector not latched on the bottom of tipm but that’s it.  All connections appear to be secure and haven’t found any chaffed wires yet.  Looking for some ideas here of issues you have found or areas to look at.......  I ordered a schematic for the truck today to study and try to get a good place to start.   Thanks for any help guys

[Fredsvt]

Only thing I've seen that's common to those years is the connectors/pins going to the tipm. 

They aren't weather sealed well, if at all.  Green death is often found.

 

[cbriggs]

Same here.

[Keith Browning]

Yup. Just asked by buddy on the other side of the shop and he said the same thing. Also check the ground, especially if this truck has a plow.