Pre owned truck’s HWA LI taillights or wiring?

I want to know if I can use a multimeter to test whatever pins on the connector lead to the turn signal on my rear passenger light and driver brake/red running light.

I suspect it’s the taillight led panels may be the problem but the truck has 214k+ miles and I need to verify I’m getting a signal at all before I order parts. I need to buy a new meter anyway, and I just need a refresher crash course on what specific numbers and ranges to look for. I feel like I have the aptitude to follow technical manuals but I hope that this is a start of me joking this community and doing up my vehicle as best as I can.

 

Welcome to Tacoma World. Yes, you can use a multimeter to check if you are getting power/signal back at the tail lights. Lots of videos on YouTube to show how to do that, it's pretty basic just take your time. Good luck!

https://youtu.be/DR2_in9QMpc?si=dT_n4KIIt9_qCTnL

 

Thanks for the reply and your patience with my
simple question. I have much to learn about taking care of a personal truck and knowing how to triage my questions.