Voltage Question

[Cona7351]

Hi

Does anyone know of a list or spec sheet somewhere that would tell me what the expected voltage would be for the crankshaft sensor wire. I know the "live" will give around 12 volts depending on the battery charge level. What should the signal wire that goes back to the DME show. I think it should be 4 or 5 volts but I wanted to confirm as I think I may have a wiring issue. I've looked on the wiring diagram and I can't see anywhere that it states what the voltages should be. Be useful to have all the voltages for the different parts written down somewhere so it's easy to refer to.

Thanks for your help

Simon