EUROVAN FAILURE 2.5 MODEL 2003

Hello everyone, I just have a problem with a 2003 model with 2.5 gasoline engine. Which does not start all that they burned the original computer so the immobilizer was replaced and scheduled. But it does not start. And only throws this code:

16726 - Camshaft Position Sensor (G40)
P0342 - 35-10 - Signal Too Low - Intermittent

and is there where my doubt begins, since reviewing the distributor feed I see that the earth does arrive but the food is 5 volts. and not 12 volts as according to I believed. And as for the signal is also 5 volts. Does this have happened to this? The curious thing is that only that code throws me and there is no immobilizer failure. It just does not turn on the engine.