WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
CASE 1
Difference of main TP and sub TP
0.3 V or more
CASE 2
Difference of main brake switch signal and sub brake switch signal