Please help turn signal problem.

[Tricci1009]

I've searched forums and threads and YouTube and haven't found anything specific to this. Some similar stuff regarding the turn signal switch. Two months ago I bought a 2016 ram 1500 slt. It's a v6. Everything was great. I pull a trailer all the time and all the lights worked fine. Recently my right rear turn signal blew. When I replaced the bulb it would light up steady. I've tried different bulbs and even swapped the known good one from the left side. It's absolutely not the bulb. When I put my right blinker on both of the rear signals light up steady (like the brake lights) After a few seconds they shut off in their own. When my trailer is connected the turn signals on the trailer flash line hazards. This is driving me crazy I'm not sure where to start. I'm hoping someone else has dealt with this.

 

[GTyankee]

are your truck lights OK when the trailer is not connected ?

 

[BossHogg]

The BCM controls the lighting circuits and if my memory serves me correctly, the trailer lighting is through relays in the BCM and the truck lighting is by BCM-mounted MOS-FETs. If it isn't a grounding issue then it may be a malfunctioning BCM.

Any after-market wiring installed?

 

[Tricci1009]

No aftermarket wiring. And it does the same thing with the trailer unplugged. I tried to find the flasher relay but it seems its controlled by the fuse box or Tipm

 

[fireflymedic]

In my experience weird electoral problems are usually a ground problem. Is there any way the right turn signal socket is no longer grounded properly?