Chrysler Repair: 94 LHS alarm system: how to disarm if door key wont do it, alarms system, jumper pin


Question
Thanks for all the prior answers to how to work around the alarm, my question is how to reset or cut off the alarm.  The car is disabled, will now start/run because the alarm is activated. Once reset I will not ever use the door locks again.

Answer
Hi William,
OK if you promise...I'll tell you how to fake out the alarms system.
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 structure nearby which serves as a "ground".  Then remove the jumper pin-to-ground connection and try starting the car to see if that clears the alarm.
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