Sounds like a short circuit to me. You are getting power to the coil when the ignition is off, so you'll need to track down where the power is getting to the coil lead when the switch is off. If you have added an electronic tach, MSD box, or anything else, remove their wires and see if you still have power at the coil. Also check the starter solenoid (and the wiring that goes to it) the voltage regulator, and alternator. Even an aftermarket car stereo can short out and put voltage in places it's not supposed to be if it has a power wire for a constant "hot" power source. Those are your most likely culprits. If it's none of them, the problem is in the wiring harness itself. Look for any areas that the wiring harness has come in contact with heat like the exhaust and melted.
Something is keeping power to the ignition coil. You need a wiring schematic and trace the wiring.
It would help if we knew the year, make and model. It has to be something you did when you changed the ignition.
try taking the ignition control module to oreilly's to have it tested. How long ago were the plugs wires cap and rotor replaced?
When they develop a fault.
No, you do not.
?ignition control module/pickup
How_Scientific_theories_can_be_changed_or_replaced_when
sure it can
1) Check for ignition problem. If you have a distributor, pay special attention to distibutar pickup and also ignition wires. 2) Check the TPS. Voltage should change smoothly as you move the throttle.
The security light comes on after you changed the keys in the ignition from the off position to the on position as a confirmation that the electrical components in the dash board are working. It is nothing to be concerned about.
If you lost the keys and you can prove that you are the titled owner. The Chrysler dealer can order an ignition key with the VIN number. You may have to have the door locks replaced, if the door key is different from the ignition key. If that fails, try an auto electric shop to get the locks changed, maybe even a locksmith.
all cars start of with matching locks/ignition and key so the ignition or locks must have been changed