Trailer Wiring help needed

[wasilvers]

I hooked the cruiser to the boat to test out the wiring. I swear it worked fine last year. But now it has issues:

• Right turn blinker will blink BOTH trailer lights
• Left turn blinker will blink Left good, and every 5-6 seconds blink the Right turn signal too.
• Trailer lights are good and wired correctly per the prior 3 vehicles I've tested it with, and my other tow van.
• Lights on the cruiser work fine

I traced the cruiser wiring back to this box where 5 wires come in and 4 go out.

The same problems were found here while testing with lights. Could this be bad or is there a bigger problem here? If this is bad, what is it called so I can order another.
Thanks!

 

[skintunes]

Time for a new tailight converter. Any trailer, boat place or local auto