2018 Tundra LED headlight wiring info with diagrams

What BlueBottle shows works as described; albeit the numbering on the terminals is reversed. It's just important for the implementer to know that the connector needing wires relocated, being a female connector, numbers its terminals left to right when looking at the face of the connector. These numbers (1, 2, 3) are printed on the back of the connector as can be seen in this picture of the LH-side connector:

 

Which two wires needed to be swapped according to the TSB? I read through a lot of this but I don’t recall reading that. It started with 2018 Tundra’s

 

Uncertain what your question is @azTony? What are you referring to by TIS? TIS is typically used as a reference to Toyota's Technical Information System software...

 

I am sorry and you are correct. Brainfart on my part… I assume it is a TSB i was referring to. Something about one of the bulbs was getting lower voltage than it should and the opposite for the other bulb. I will search some more and see if I can find the number

 

Hey there, no need to apologize - we all have brainfarts sometimes! I'm new to this forum, but I'm happy to try and help out with your vehicle lighting question. If you're looking for some info on TSBs related to lighting, you might want to check out this link I found (https://www.truckelectrics.com/pages/lighting). They've got a bunch of info on different types of lighting and some troubleshooting tips that might come in handy. And hey, if you ever have any other questions about car stuff, feel free to hit me up.