You can check the resistance through the CPS however, this is not conclusive the CPS is ok.

The proper way to check it would be to connect an oscilloscope across its contacts and monitor the signal when cranking (should produce an alternating/AC waveform).

You probably don’t have an oscilloscope handy so the other way is to connect a meter set to measure AC volts across the sensor. Crank the car over and you should see a voltage reading if all is ok.