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Hello and welcome! The most common cause of this no crank condition is the ignition switch actuator shaft. It sits between the lock cylinder and ignition switch. You could go directly there and pull things apart or you could do some electrical testing first.
At the starter relay, make sure that power is coming to the relay on terminal #30 all of the time, and make sure that terminal 86 gets power in the "crank" position. Also, dont forget to check the transmission range sensor as well. You can ground pin #38 of the C3 connector at the Powertrain Control Module and see if vehicle cranks over. This test verifies the integrity of the wiring between the starter relay and the PCM.
Hello! You can use a test light or a voltmeter to check for power.
Just look for the starter relay in the PDC center under the hood.
Hello! It's Amedee from just answer. I am just checking in to see if you need any further assistance?