2000 sebring convertible factory alarm

How would I test the wire in the car to check if it is a (-) or (+) lock and unlock

With a DMM.

SO if I hook up my meter to ground and the door lock wire, when I hit unlock and lock what should i see on the meter?

It doesn't work that way, find the suspect wire then with the required resisters and a piece of wire, attach each resistor in turn, lock first then ground it. If that doesn't work attach to a 12V+ constant. In the worse case scenario you will blow a fuse.

Sounds good, Thank you so much for all your help.

Here is a link to the DEi Tech Tip #1041  :  https://www.the12volt.com/installbay/file.asp?ID=708   In it you will find a lot of useful info on door lock types & systems.Soldering is fun!

Thank you, there's a lot of good information in that file.

If you have the convertible, the locks should be one-wire positive. 

 If you have the coupe, they should be Type B (-).

Soldering is fun!

The difference is the Sebring Coupe versus the sebring Convertible. I believe back then, the coupe was made by Mitsubishi and the convertible was built by Chrysler. That is why the coupe has standard negative locks and the Convertible has the Chrysler one-wire system for door locks. Any how, You can use your Light GREEN/ orange wire located in the drivers kick panel to lock/unlock your car as well as arm/disarm. You will need 2 relays and wire it as positive through a 470 ohm resistor for disarm/unlock and a 940 ohm resistor(Two 470 ohm resistors wired end to end) will lock/arm the car. On unlock, the first pulse will disarm the factory alarm, but leave the doors locked, a second pulse will unlock the doors. This means you will need to set your unit to double pulse unlock in the programmable feature menu of your unit. Relays gets wired as so: Lock/Arm relay 86 & 87 to fused 12 volts 85 to your lock output from your unit 30 goes through the 940 ohm resistor and connected to the light GREEN/ orange wire Unlock/disarm relay 86 & 87 to fused 12 volts 85 to your unlock & disarm output from your unit 30 goes through the 470 ohm resistor and connected to the same light GREEN/ orange wire as above. Again, set your unit to double pulse unlock. The way you want to test the light GREEN/ orange wire will be to put your meter's black probe to ground and to attach your red probe to the suspected wire. You will turn the key in the door key cylinder to the wire. You can hold the key cylinder to lock or unlock cylinder while you are testing. Because there is resistance, the reading will not be 12volts. Locks voltage will be lower then unlock on the same light GREEN/ orange wire.

Use this diagram:- 177_multiplex_via_relays.bmp