Rear Running lights out

Something blew over the weekend in the electronics that caused my rear running lights to go out. Since the front ones work I'm concerned I might need new tail lights.

It would help if I could figure out what module in the electronics box controlled the tail lights for the rear. Anyone know what those are called on a 2015 Tacoma? I did check the fuses - ALL of them and none were blown so I'm guessing some other relay module is blown. However, the cover, which gives a schematic for what each is is too cryptic for me to figure out which one controls the rear running lights.

Thanks in advance for any help on this.

 

Most likely a cut wire in the rear. The TAIL relay handles the dash illumination also, and since you know the front tails work...

View more info here:
https://www.tacomaworld.com/threads/no-taillights.628038/

 

Thanks for the link and clue.

 

Here's another reading material:

https://www.tacomaworld.com/threads...hts-and-oem-trailer-socket-blows-fuse.604494/

 

Well, I tried everything that was simple. All the fuses under the hood were good. Replace the towing/taillight relay and it still didn't work. Looked at the wiring diagram (above) and have 12V to three of the four connectors, but which one is #1, #2, #3, or #5 is not evident from the actual hardware. So I don't really know what is wrong other than the running lights and towing lights don't work.

And I also pulled the tail light assembly and applied 12v to each of the connectors and the lights themselves actually work - so the trouble is in the circuit controlling the lights, but where is not obvious or easily accessible to me. Makin' a date with the dealer to diagnose at this point. Out of options unless someone here has experienced this and knows XZactly what the problem is.