Help! 2017 Tacoma tail lights don't work !

[oldmantaco]

Installed aftermarket LED tail light assemblies, but the tail lights don't work, the reverse and turn signals/flashers work, but plate lights don't, they all run off the same fuse, but the fuse is good, even replaced the fuse with a new one, still isn't working. I have LED license plate lights, but they worked fine until I installed the new tail light assemblies.
the tail lights work fine with direct power from the battery, but plugged into the harness, they don't work, I checked the power at the plug and nothing! I know it is in the tail light circuit since the plate lights don't work,, but the fuse checks good?? any help would be greatly appreciated! )

 

[MikeB]

Changing out lights can be costly. Watch this video:

Source: https://www.youtube.com/watch?v=FPKN25EpN6s


I hope this is not your situation.

 

[oldmantaco]

I hope not as well, I will start doing what he did and let you know what I find, thanks for the link, very informative, but I hope that not the problem, my biggest concern is what caused it if it is the problem, I don't want to fry another block if it is!!


2017 SR5,4WD, V6

 

[SelenaNeuhaus]

Changing out lights can be costly. Watch this video:

Source: https://www.youtube.com/watch?v=FPKN25EpN6s


I hope this is not your situation.

Thanks for the video.

 

[JeffreyLcevedo]

Changing out lights can be costly. Watch this video:

Source: https://www.youtube.com/watch?v=FPKN25EpN6s


I hope this is not your situation.

Thanks for the video.

Edit: With the "hyperflash" turn signals, I had that symptom with aftermarket LED turn signals (all four) on my 2011 Corolla, and the fix was installing a different flasher module. Never had any trouble after replacing the module, or with any other LED lights. I changed all exterior lights to LEDs without trouble. You just gotta be careful, and know what you're doing.