Quick and Easy Immobilizer Coil Tester for $10.00
This is a real-time saver and easy test of the immobiliser coil in the ignition switch. This tool is only $10 to $14 dollars. By using induction it can check to make sure your keys chip is sending the proper signal to the module.
Car Coil Tester, Automotive Chip Induction Coil Detector
https://amzn.to/3veAiN4