disabling 89' cadillac factory security?

the only way to disable the factory security system is to use the key in the driver door.

that sends a neg. pulse through the light green wire come from the door to the security system. sometimes found in trunk along back wall.

another way to disable is to inistall a keyless entry system that would bypass the security every time u unlock it.

---------frank

if u ground that wire permanently the door locks could fail. grounding that wire is not the right way to do it!!!!!!!!!!!!!

--------------frank

well does anybody know the correct way to do it?? i know it can be gotten around. anything can be gotten around. anybody know where i could get a complete wiring schematic for this car. then i could figure it out myself.

thanks for the help.

go to a GM dealership. they have entire books of schematic diagrams for all the cars.

why not try to gound that wire coming from the door boot?

the weqay i usually find the wire is i remove the boot cover from the door jamb, then probe the wire that changes from a weak positive to negative when the door is unlocked with the key from the drivers door.  It usually is a light green wire there.

then cut the wire and attach a wire to each end u cut and run the wires back through the boot and into the car. ****remember which wire is the key side and alarm side. then try grounding it to see if any ill effects happen. i dont think anything really bad should happen. maybe just the door locks wont work.

or u could find that same wire on the drivers side kick panel inthe pile of wires that go back to the trunk.just remember to test using the method i told u about previously.

good luck

connect the disarm wire from your module to the light green wire- in or from driver door.

When you press Unlock or remote start the OEM alarm will disarm.