Similar issue with no power to the inverter. Finally looked at the inverter switch. The doe-heads at the shop had unhooked the switch when they were doing some unrelated work. Both my wiper de-icer and inverter switches were disconnected. Popped the dash connected the switches and I’m off to the races.
Just joined the forum after leeching for a bit. Thank you all for your ideas and help over the years. I’m so far from being able to do mods, but am very interested and willing to learn. 2017 4Runner TRD pro is finally off lease, so now that I own it, I can take her off road. Lol