82165-04060 Wire harness "Frame, #2" thick Blue single wire: what is it?

Currently relocating the 120V outlet from the rear of the bed to into the cabin (will no longer have a stock bed) and just under the passenger underseat floor grommet where the harness enters the cabin, there is a plastic shield covering two inline connectors.

one is the 3 wires carrying the 120V.

the other larger connector is a single wire. It seems to run towards the engine bay, has another inline connector inboard of the shock tower, and i lose track of it under the airbox (have not pulled the box to trace yet)

I turned the truck on with no issues/error codes with the blue wire disconnected.

Anyone know what this wire is for? I seem to have a bad bookmark for the Tacoma wire diagrams I found a while back on the internets...

specifically this is a 2020 Sport with a manual trans.

thanks!

 

I know on 2nd gens the big blue wire is the DC feed to the inverter. Doubt it will throw any codes, but you wont have any AC power without that. And I wouldn't want to leave it hanging either, Im guessing the relay will still energize it if you were to push the inverter button in the cab

 

oh that might be it. I'll have to experiment with the inverter switch and fuses and measure if that's it

 

yup, looks like it's what you said based on this post also

https://www.tacomaworld.com/threads...-and-400w-anytime.505598/page-7#post-20563743