will not turn on my Foxwell scanner?

i did check all fuses and chased wiring.

Did you check for power grounds at the data port connector? This guide can help you test it, and I have included the data port wiring so you can see which wires to test.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

There are two grounds and one power. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.