Help understanding electrical problem?

[Got Smoke?]

Ok most of you probably saw my original thread I posted here

http://coloradok5.com/forums/showthread.php?t=291908

My truck went nuts after snatching a large truck out of some mud.

So I ended up not being able to find the problem and I hate electrical so I took it to a very good family friends shop. So far they found a short in the dimmer switch, head light switch, and turn signal switch. They added and additional core support ground and battery ground, and that almost everything except for the flashing headlights when using the right turn signal.

A buddy of mine disconnected my LMC relay harness checking every possible problem, and surprisingly the headlights stopped flashing with the right turn signal?

Anybody care to explain to me how on earth current was feeding from the turn signal to the headlights through my LMC harness?

 

[496truck]

Without a wiring diagram? Aint gonna happen.

Still thinking there is a ground problem up there. Sounds like the h/ls are trying to ground through the turn signals. Could also cause similar issues if the problem is on the voltage side.

And you've added some harness from LMC. With that removed it seems to work OK. I'd say your problem is linked to that.

Not having the problem vehicle here in front of me for testing along with a wiring diagram.... all I can do is guess.

 

[Got Smoke?]

Without a wiring diagram? Aint gonna happen.

Not having the problem vehicle here in front of me for testing along with a wiring diagram.... all I can do is guess.

Understandable...

And you've added some harness from LMC. With that removed it seems to work OK. I'd say your problem is linked to that.

Yeah but the LMC harness was added a month or two prior to the event that caused all the problems. It worked flawlessly...many people here have them and brag on them so I purchased one and was glad I did. Really hope that the problem is solved so I can use it again.