Clean Light Blinking 7x

There are other 7x Blinking Posts on here and I have read them all and I still have a short question or two. I have done the 4x "Normal-Heat Dry" reset cycle and that removed the 7x blinking until i ran the dishwasher 1x and it returned.

From reading the other posts, I believe it is the Heat Filament or the Hi Limit Thermostat. I learned that I have to check them for continuity from reading the other posts and I understand how to do that from reading the continuity posts. I just need to understand where these parts are located and what they look like? I obviously can view the Heat Filament but I have no idea on the other. Can someone point me in the right direction or confirm I am on the right track?