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.

Yaw-Rate Sensor Diagnostic with Multimeter, Scan Tool & Oscilloscope | Diagnostic & Calibration 🎯In this video I[…]
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.