Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
I'm not sure what you trying to achieve in your question.
The sensor voltage would go from about 10v to about 2.5v for each signal.
It works in a range like this because if the signal wire is shorted to ground or voltage, it will log an appropriate DTC.
Can you tell me about your troubles?
What vehicle and engine?
If you believe the wiring is ok, then 3 crank sensors to me says the ECM is the likely cause.