Chrysler Repair: Anti-theft and how to disarm it: LH body car, power door locks, jumper pin


Question
I have a 94 Chrysler Concourde and the anti theft has been armed and I need to know how to disarm it.

Answer
Hi Shari,
I assume that simply locking and unlocking either front door using key is not disarming it. That is the normal way. You need to get to the body computer which is mounted on the right side cowl, in the cabin, under the dash, just in front of the passenger door opening. Here is how you do that:
remove the end cover at the very far right end of the dash,
remove right cowl trim panel and pull back carpeting to expose the dash liner. Notice that there are perforations in the dash liner.
cut along the perforations and pull the dash liner back which exposes the body computer. It has three plugs, you need to deal with a wire on the black plug so you may find it easier to remove the computer from the cowl which you do by removing 2 screws (one is oblong hole at knee bolster) and one push-pin. Now locate the light green/orange wire on pin #3 of the black plug. Put a straight pin through the insulation so as to contact the internal conducting wire.
Then making sure that all three plugs are still connected to the computer, use a conducting wire "jumper" to connect the straight pin to any shiny metal body part or structure nearby which serves as a "ground".  Then remove the jumper pin-to-ground connection.  Try starting the car to see if that clears the alarm. If not try "jumping" again.
Then never use the power door locks when exiting the car.  The light green/orange wire is in fact the one that is connected to both door key lock cylinders. The wire has fatigued and broken in both of your front doors so that is why you can't disable the alarm once it is set. When you unlock the door you do essentially what you did with the jumper wire, if the wires were not broken.
Let me know if something isn't clear.
Roland