2003 Dodge Caravan no start

Sorry I guess I failed to state the obvious. The starter will not even turn over at all. But it is getting juice to it.

2002 Dodge Caravan six cylinder two wheel drive automatic 147,000 miles.

The problem is simple. Turn the key to start and nothing happens but the starter relay comes on.

The van has been driving normal for three months now. I had a new PCM and MAP sensor installed three months ago. No signs of problems at all. The wife drove it home, parked it for three or four days and this happened.

One problem exists with the key off.
1. The steering wheel does not lock in the park position. I do not know how long this has been the case.

This is what I have with the key in the on position.
1. All dash lights are on as normal.
2. I can hear the fuel pump coming on and hum.
3. I can hear the injectors (or something in the immediate area) click and hum.
4. All other controls work. Ex. Heater, radio, lights, and even the back up lights in reverse.
5. The gearshift shows it in park and it switches through the gears correctly. (Yes, I have tried starting in neutral. Lol)

Here are the parts that I have checked and tested to be good.
1. Starter (new and tested)
2. Battery (new and trickle charged 12.65 volts)
3. All relays and all fuses in the relay box (metered with power and off)
4. Voltages are present at the starter and ground is good on the battery.
5. The control wire from the starter to the relay ohms out good.
6. All connections have been cleaned and tests good.
7. The PCM has worked fine for three months. It is from AutoZone and had been flashed and coded with my VIN. (Do not know if it is bad or good now.)

The neutral positioning switch is encased in the transmission (non-removable) and is a 6 (I think) pole plug. Hanes book does not even cover this type of switch. All others are removable 3 pole switches.

I have no engine codes when I try the key method. (On, off, on, off, on)

I tried a completely separate circuit/switch for the starter. With the key both in the on position and start position, in neutral and park. It cranked the engine but no spark was present to the plugs.

One thing to note, when I try to start with the key as normal, the radio shuts off when the key is in the start position.

I have almost totally given up. What next.

All symptoms and things checked like this person.
And same results except mine is a 2003 and the steering wheel still locks when key is off no codes no check engine light on.

So funny thing, I did that test and pins 4&5 did not have continuity so I replaced the ignition switch. After replacing the switch I started the vehicle and it immediately shut off and now I am right back to where I was with a no start issue. This is frustrating.

Do not have access to an OBD II and cycling the key does not show any codes on the odometer.

I have gotten my hands on on OBD and there is no stored or pending codes in the system at all. But I after four days of not touching it the van started four times ran for two minutes or so each time then shut off and now will not start again. Will not turn over nothing.

No did not replace the key, but I did manage to find the problem and got my van running! Thanks for your help and feedback though.

Well I guess it was temporary because the issue is back. There was something that popped my fuel pump fuse a wire that looked to be shorting out but I soldered it and covered with shrink wrap car ran fine for two days and now same issue again. Will get back to you when I know more.