Dodge Repair: 97 3.0L no start, no spark, crankshaft position sensor, oxygen sensors

Question
We discussed the voltage. I did mean 6 volt. I replaced pcm thinking tha it was the issue. I can't figure why I have a reading of 6 volt. Could a cam or crankshaft position sensor cause this? Oh. I replaced the asd relay.

Answer
Hi John,
If by "lead" you meant the dark green/orange wire at pin 2 of the spark coil, then that is a 12v supply from the asd relay which draws upon fuse 12 in the power box for its source of voltage and that fuse draws directly on the battery. There are a number of devices that also share the dark green/orange wire and one of those may be pulling down the voltage without blowing the fuse: the field coil of the alternator, fuel injectors, the spark coil primary winding, and the heated oxygen sensors. So you could try unplugging those one at a time to see which is dragging down the voltage after verifying that there is 12v coming into the fuse 12 socket on one side (after removing the fuse). The pcm also is connected to the wire but it is simply to 'Sense' when the relay is closed so I doube it would pull the voltage down to 6v. My suspicion would be the one of heater wires of a heated oxygen sensor is shorting to ground as those are very fragile, but I wonder that it is not blowing fuse 12 if so.
The asd will close for only about a second when you first turn the key to 'run'. Then close again when you start cranking provided that the engine rotation sensors are good.
Let me know please whate you find.
Thanks for rating my answer. You can do it again, if you choose.
Roland