Where is the crank senior location on this type of maxima

 

There are 2, one is located behind the Balancer, and other is between the engine/ trans, just behind the front (radiator side) engine Mount.

 

Both sensors are different as well and both are fairly easy to get to. Remove the front left tire for access to one of them but you’ll have to remove all the underside splash guards to gain access to the front sensor.