How to bench test a 2021-2023 Tesla Model Y Inner Tail Light

In this video I will show you how to bench test this 2021 Tesla Model Y OEM Inner LED tail lamp.
This is the updated 4-pin version.
OEM part number: 1502089-00-B

[@ngtyler5930]

Please, Can you do the dissembling video for the 2021 Toyota Highlander headlight housing ?

[@goodtint]

On the road . I never seen the brake light on for the inner tail light. Why they produced and designed but then they disable its

[@techstuff7414]

It's not a brake light, it's the rear fog light.