How do the nagavtor system work

To program new keys to work with the Passive Anti-Theft System (PATS) on a 1997 Ford Expedition, you will need to have two working programmed keys available. If you do not have any working keys, you will need to have the PATS module reprogrammed by a Ford dealership or a locksmith that specializes in Ford vehicles.
Once you have two working keys, here are the steps to program new keys to the PATS system:

1. Insert the first working key into the ignition and turn it to the "On" position (do not start the engine).
2. Within 5 seconds, insert the second working key and turn it to the "On" position.
3. Within 10 seconds of inserting the second key, turn both keys to the "Off" position.
4. Remove both keys from the ignition.
5. Insert the new key you want to program into the ignition and turn it to the "On" position.
6. Within 10 seconds, turn the key to the "Off" position and remove it from the ignition.
7. Repeat steps 5 and 6 for any additional new keys you want to program.

The PATS system should now recognize the new key and it should be able to start the engine. If the new key does not work, please consult with an Ford Dealer or Automotive Locksmith to assist you with the programming.

Did you check fuse's in fuse block center console ? Fuse #26 IGN3 / HVAC 10amp . Do you know what I'm talking about ?
Fuse Block - Center Console
Inside of console, behind the right console access panel
What did you do jump terminals in the DLC ?
You need a factory scan tool to program keyless entry remote .

1. Install a scan tool.
2. Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs.
3. Press the START soft key on the scan tool.
Important: The scan tool must stay connected until all of the transmitters are programmed.

4. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
5. Repeat the previous step in order to program up to 4 transmitters.
6. Remove the scan tool.
7. Operate the transmitter functions in order to verify correct system operation.

ck for a fuse in the under the hood fuse box that says bsm may be blown.
Also try this.....
To reset the security system remove the negative battery cable for 30 minutes, then reconnect the cable. Next, lock and unlock the doors using the remote. This will reset the alarm system and the engine will start and fobs reset.

Here are some factory notes....FYI

Anti-Theft Systems

PROGRAMMING

NOTE: If a new Smart Entrance Control Module (SECU) is installed, a new identity code must be entered and all remote controllers must be programmed. If identity code cannot be entered, repair multi-remote system. See appropriate MULTI-REMOTE CONTROL SYSTEMS article.

PROGRAMMING > PROGRAMING NEW ID CODE

NOTE: This procedure will erase all previous identity codes and render all previously programmed remote controllers inoperative (until reprogrammed). All remote controllers to be used with system must be programmed at the same time. A maximum of 4 remote controllers can be programmed. Any attempt to program more than 4 controllers will be ignored. If same identity code is entered more than once, entry is ignored even though hazard warning lights will still flash twice.
1. Close and lock all doors. Erase original identity code(s) by inserting and completely removing key from ignition switch more than 6 times within 10 seconds. Hazard warning lights should flash twice. Turn ignition switch to ACC position.
2. Push any button on new remote controller once. Hazard warning lights should flash twice, indicating identity code has been entered. If identity code cannot be entered, repair multi-remote system. See appropriate MULTI-REMOTE CONTROL SYSTEMS article.
3. For each additional remote controller to be programmed, manually release door lock and lock again by using door panel switch and repeat step 2. If no additional remote controllers are to be used, exit programming mode by unlocking and opening driver's door.

Please let me know if you need anything else to get the problem fixed. Happy mew Year!

GOTO HOMELINK.COM

THEY MAKE THE SYSTEM AND HAVE INSTRUCTIONS YOU CAN DOWNLOAD.

PLEASE NOTE: NOT ALL BRANDS/MODELS OF OPENER WILL WORK WITH THIS SYSTEM.

HOPE THIS HELPS

ATTENTION: You MUST HAVE one working remote to add one more to the system. If you do not have one working remote right now then these instructions will not work. You will have to have a Locksmith or dealership use a computer to program the first remote for you.


1. Turn ignition to the RUN position (as far as you can go without starting the engine).
Wait for chimes to stop.
2. Using original programmed remote, press and hold the UNLOCK button on the
remote for between 5 and 10 seconds.
3. While holding UNLOCK button, and before 10 seconds passes, press and release
the PANIC button. A chime will sound to indicate that the transmitter programming
mode has been entered.
4. Within 30 seconds of the chime, press a button on all remotes to be programmed
into the system including any previously programmed remotes, a chime will
sound after each remote has been programmed.
5. Turn the ignition OFF to exit the transmitter programming mode.


6. Test Remotes

: If a double audible warning sounds during the programming procedure a system malfunction has occurred. Repeat programming procedure.
Obtain all keys fitted with remote control. Open driver's door. Operate headlamp high/low beam switch to flash high beam position and hold. Insert key into ignition switch, turn to ACC position. Ensure system LED flashes once and an audible warning sounds. Operate headlamp high/low beam switch to flash high beam position 5 times. Ensure system LED flashes once and an audible warning sounds. Programming mode activated: Press and release lock or unlock button on first key. Ensure system LED flashes once and an audible warning sounds to indicate correct programming. Repeat programming procedure for remaining keys. Switch ignition OFF and remove key. Close driver's door. Check operation of keys. Keys can also be programmed using diagnostic equipment

GOTO HOMELINK.COM

THEY MAKE THE SYSTEM AND HAVE INSTRUCTIONS YOU CAN DOWNLOAD.

PLEASE NOTE: NOT ALL BRANDS/MODELS OF OPENER WILL WORK WITH THIS SYSTEM.

HOPE THIS HELPS

Programming
When
Key added or replaced. System malfunction.
How
Obtain all keys. A maximum of 3 keys can be programmed. Close all doors and boot/tailgate. Switch ignition ON. Repeat procedure below 3 times: Within 4 seconds: Press key lock or unlock button. Within 4 seconds: Switch ignition OFF. Within 4 seconds: Switch ignition ON. Within 4 seconds: Press key lock or unlock button. System should now lock or unlock vehicle. Within 4 seconds: Press key lock or unlock button. Within 10 seconds: Press lock or unlock button of first key. System should now lock or unlock vehicle. Press lock or unlock button of second key. System should now lock or unlock vehicle. Press lock or unlock button of third key. System should now lock or unlock vehicle. Switch ignition OFF. Remove key. Check operation of all programmed keys.
NOTE: If less than 3 keys are to be programmed, remove ignition key after programming last key.

The only way to program them is with a scan tool so you'll need to visit your local dealer to have it done. Here is how it is done.

1. Install a scan tool.
2. Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs.
3. Press the START soft key on the scan tool. Important: The scan tool must stay connected until all of the transmitters are programmed.
   
4. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
5. Repeat the previous step in order to program up to 4 transmitters.
6. Remove the scan tool.
7. Operate the transmitter functions in order to verify correct system operation.

Is this the procedure u are using? this is from the factory manual.

ATTENTION: You MUST HAVE one working remote to add one more to the system. If you do not have one working remote right now then these instructions will not work. You will have to have a Locksmith or dealership use a computer to program the first remote for you.

1. Turn ignition to the RUN position (as far as you can go without starting the engine).
Wait for chimes to stop.
2. Using original programmed remote, press and hold the UNLOCK button on the
remote for between 5 and 10 seconds.
3. While holding UNLOCK button, and before 10 seconds passes, press and release
the PANIC button. A chime will sound to indicate that the transmitter programming
mode has been entered.
4. Within 30 seconds of the chime, press a button on all remotes to be programmed
into the system including any previously programmed remotes, a chime will
sound after each remote has been programmed.
5. Turn the ignition OFF to exit the transmitter programming mode.

6. Test Remotes