My 1999 caddalac deville delagance door ajar singnal keeps going off and my doors are secure

Do you know anything about automotive electronic's ? Control modules ?
Vehicle Security Module
The vehicle security module receives inputs from the following:

• Door ajar switches
• Keyless entry keypad
• Ignition switch
• Remote keyless entry (RKE) transmitter

The vehicle security module uses these inputs to control an output signal to the instrument cluster which controls the battery saver relay and interior lamp relay. The battery saver relay and the interior lamp relay are internal to the instrument cluster, and are not replaceable. There could be a faulty switch input to the I/C - insturment cluster , causing the vehicle security module to activate the lock's an light's .
Interior Lighting Systems
The instrument cluster grounds the battery saver relay and interior lamp relay coils when any door ajar switch is opened, or the interior lamp (headlamp) switch is closed. The interior lamp relay then supplies voltage to the interior lamp circuit. Vehicle speed must be less than 24 km/h (15 mph) for the instrument cluster to ground the interior lamp relay. The interior lamps remain illuminated for up to 25 seconds after all doors are closed unless the instrument cluster receives an input from any of the following:

• voltage from the ignition switch.
• a vehicle speed signal.
• input from the keyless entry keypad through the vehicle security module.
• input from the RKE transmitter unlock or panic switch through
• the vehicle security module.

Do you know what DTC'S - diagnostic trouble codes are ?
Could have DTC'S stored in the following Modules
Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1320 Driver Door Ajar Circuit Open Instrument Cluster Go To Pinpoint Test C . B1328 Passenger Door Ajar Circuit Open Instrument Cluster Go To Pinpoint Test C . B1342 ECU is Defective Instrument Cluster CLEAR the DTCs. REPEAT the self test. If DTC B1342 is retrieved again, INSTALL a new instrument cluster. REFER to Section 413-01 . All Other DTCs - Instrument Cluster REFER to Section 419-10 .


Vehicle Security Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1322 Driver Door Ajar Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . B1330 Passenger Door Ajar Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . B1338 Door Ajar RR Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . B1342 ECU is Defective Vehicle Security Module CLEAR the DTCs. REPEAT the self test. If DTC B1342 is retrieved again, INSTALL a new vehicle security module. REFER to Section 419-10 . B1574 Door Ajar LR Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . All Other DTCs - Vehicle Security Module REFER to Section 419-10 .
Your best bet mite be to take to a qualified repair shop .

The power locks on this vehicle are controlled by a electronic module ( vehicle security module ) ! It use's inputs from door switches to control locking an unlocking of the door , Plus door ajar switches ! The first thing would be to check for DTC'S - diagnostic trouble codes in the security module . Need a factory or professional scan tool for that . If you don't have one you'll need to check all inputs to the security module .
Door Locks Go Crazy 1
Door Locks Go Crazy 2
Door Locks Go Crazy 3 this a dodge vehicle but doesn't matter , samething . pretty much .
http://www.bbbind.com/free_tsb.html free wiring diagrams . There is a bad signal to the module , short to ground maybe . Do you know how to do automotive electrical testing with a volt meter ? How to use an read a wiring diagram to find points in a electrical circuit for testing ? Electric Testing Techniques You Need to Know

It should tell you which one .
Driver Door Ajar Malfunction
Passenger Door Ajar Malfunction
If not a scan tool would be the best way.
Ignition ON, observe the scan tool Driver Door Ajar Sw parameter while opening and closing the driver door. The parameter should change between Door Closed and Door Ajar
? If the parameter does not change, refer to Driver Door Ajar Malfunction.
With the passenger doors closed, observe the scan tool Door Ajar Switch parameter while opening and closing each door. The parameter should change between Door Closed and Door Ajar.
? If the parameter does not change, refer to Passenger Door Ajar Malfunction

Ignition OFF, disconnect the harness connector at the driver door latch.
Test for less than 5 ohms between the ground circuit terminal 8 and ground.
? If greater than the specified range, test the ground circuit for an open/high resistance.
Ignition ON, verify the scan tool Driver Door Ajar Sw parameter is Door Closed.
? If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the BCM.
Install a 3A fused jumper wire between the signal circuit terminal 6 and the ground circuit terminal 8. Verify the scan tool Driver Door Ajar Sw parameter is Door Ajar.
? If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
If all circuits test normal, test or replace the driver door latch

first I would be looking at the body switches for dirt or rust causing a false signal.. then I would adjust the part of the alarm that the wind affects..it should be adjustable for sensitivity..the dealer service should be able to advise you..if not check with an alarm service company..that installs these systems..good luck..

It is either a switch in the jamb or it is in the latch assembly

It is attached to the door latch inside each door.

the computer is not getting the earth signal from all the doors there is either a faulty door switch or a broken wire from the doors

open each door and squit in WD 40 in the looks and open and shut the door a few times. It will take care of it

It sounds like there is a short somewhere. Either a bad ground, pinched wire going from the door to the fuse box, or a possibly a bare wire shorting out onto something. You say that the door adjar light and the door locks are affected. Check the door switch and make sure that it isn't broken, shorted out or sticking. Function test it. If you disconnect the door switch and take a test drive does the problem still exists? Yes? Disconnect the other side. Did that cure the problem? Yes? Replace as necessary. No? The problem isn't in your door switch(s). So that much has been ruled out. These are just some areas to start trouble shooting. At first I immediately thought "Door Lock Switch," but when you mentioned that the Door Ajar light keeps going on along with the light then it leads me away from the Controls and more towards the Door light Switch usually in the jam of the door, but you didn't mention the year, make and model, so location of the switch is obscure. If the door locks are switching on and off and the door adjar light is in harmany with it then make sure the door is secure, not loose when closed allowing the door adjar switch to break the connection. These are the areas I would investigate first. Is there a significant amount of slop in the door when you push and pull on the door like it isn't secure? These are some areas to take into consideration when trouble shooting.

Good luck. I hope this helps narrow things down for you.

from the abbreviated words ya are using i am gonna assume the door is not being seen as closed to the fem module, so assuming the door is open it will unlock the door to keep ya from locking key in car. does dash show the door is ajar?, if so may need a new door ajar switch or agjusted striker.... any more info on the concern could help you diag, but please use word as apposed to YOUR abbreviations..... may be relocking while driving because the drive away feature of auto locking after the 7mph signal reached