Chrysler Repair: 90 New Yorker 5th Avenue:theft removal, chrysler new yorker, jumper wire

Question
My 1990 Chrysler New Yorker 5th Avenue will not stay on because the security system is malfunctioning and thinks I am trying to steal it. How do I disconnesct the alarm system so my car will run?

Answer
Hi Alexis,
Did you try to lock/unlock the passenger-side door using the door key? That will also disarm the system. If neither door lock will work to disarm it, then see below to find out how to jump together two wires at the theft module so as to cancel the alarmed condition. (If you want to avoid setting the alarm in the future then only use the mechanical push buttons to manually secure the doors, never use the door key lock or the power locks to secure the doors.) If you want to kill the system permanently you have to disconnect the theft module but you can only do that after you have disarmed it:
Start by removing the glove box (Remove all the screws around the opening and drop it down and out). Then you will find the theft module mounted on a bracket that runs across the top of where the glove box was. The bracket can be removed by removing screws at both ends to give you better access to the plug on the module.  It has a 21-wire "natural" colored plug. You may need to remove the bracket to get good access to the wires at the plug.
DO NOT UNPLUG THE PLUG. Instead find the light green/orange wire at location 15 of the plug and stick a pin into it to touch the conductor inside. Do the same thing at the black/light green on location 10. Then using a jumper wire connect the two pins and then remove the jumper. You will simulate the door lock/unlock that way. Then try to start the car.
To remove the System Permanently:
WHILE THE ENGINE IS RUNNING YOU CAN SAFELY PULL THE PLUG. That will disconnect the system entirely.
Let me know what happens. You can also repair the wires from the door lock to the module (the light green/orange wire) if you want to resume the use of the system. But focus now on getting it started and then pull the plug while the engine is running.
Roland