You need to determine if when you have the ignition switch in the "run" or "on", there is power to the ignition box.
If you are saying that there is not, it is highly likely that the electronic portion of the keyed ignition switch is defective.
There are three on terminals in the switch. Accessory, run, and start.
The run terminal seems to go faster than the other two.
I just replaced an ignition switch with this problem.
The accessories would come on, the car would turn over and fire in the start position, but would stall right out in the run position.
In that case the culpret was the ignition switch.
I don't know if the Pantera switch can be repaired. I never tried that.
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