Weird light problem

Hi all. New to site . I have a 2019 trd off road, after pluging in a rental trailer, immediately had signal problems . Unplugged and left for home . Now front lights signal and all work fine. Rear lights I only have brake . Also when I plug my trailer in ( good wiring ) , the lites all work on the trailer ( not rear of truck) except right signal is solid on . Totaly at a loss for this one . Checked all fuses and tested rear signal bulbs ..any help would be great before I take it in . Thanks in advance .

 

Did you try disconnecting the battery for 15 min or so?

 

I did. Even checked all light bulbs. Really stumped. I have an appointment on Tuesday. Either way I'll post solution. Mabey there is a control module or something. Couldn't find a wiring diagram on line to check .

 

Also ...to make things even more complicated....I have brake lights , but no hazards ????

 

Pretty sure there’s a wiring diagram on here somewhere. That is strange. Hopefully someone will chime in with suggestions and you can solve before appt.

 

Welcome from NY.
Hopefully it's a simple fix.

 

I know stated you checked all the fuses.
Make sure you checked the 30A TOW TAIL fuse and it's relay..




Not saying that is what the issue is, but it's worth checking..

 

would you be able to tell me where that relay is?

I have no hazards either... all lights wok fine, all fuses check. didnt think about checking the relay but i can look tomorrow, would be nice if you can point me to it directly and minimize the looking.

thank you ahead of time.