If you're talking about the remote entry, here's the procedure:

1.) Gather all your remotes, b/c you're programming a brand new code to the remotes

2.) Make sure all doors and liftgate/window are completely shut

3.) Place your key into the ignition then cycle it from "off" to "on" 8 times, ending on the "On" position, if this is done correctly, the doors locks should lock then unlock.

4.) After the "lock confirmation," press any button on the remote. Once you did that, the door locks should lock, then unlock. Continue this with the rest of the remotes.

5.) Turn the ignition off and try the remotes out. If one of them doesn't work, repeat steps 1-4.

Remember that you can only program up to 4 remotes. I hope this helps.

Billy
'96 Explorer Eddie Bauer
4.10 LSD
PIAA 9007 Superwhites
K&N Drop In filter