Everything you need to understand the Smart Key System (Push Button Start) operation and diagnostic is explained in this course. This course specifically covers all cars in Hyundai & KIA, but the content is very helpful for other cars smart key systems diagnostic too.

Automotive Network vs Budget Oscilloscope | CAN BUS, LIN-BUS & K-LINE Diagnostic with a Budget Scope In[…]
This course covers everything about each single sensor on engines.
Sensors operation, wiring diagrams, specifications and practical diagnostic on the car are explained for each sensor.