How do you program the remote keyless entry for a 1997 Mustang?

Answer 1

Open the trunk lid and remove the left inside panel. Behind that there is a programming connector. It will be an un-used, open connector, probably grey, and that has two pins. the wires going to it will be GY/YE and WH/YE. With the key off, use a jumper wire to short across the two pins (a pair of metal tweezers will work, but hold end with something that doesnt conduct electricity). With the connector shorted, turn the key on. The door locks will respond by locking and then unlocking. This means you are in programming mode. Now take each remote one at a time, and press any button on each remote you want to program. Each time the module accepts a remote, the door locks will lock and unlock. You can program up to 8 remotes, I think. VERY IMPORTANT: Entering programming mode erases all previously programmed remotes, so you must even re-program the old ones at this time as well. Any remotes that are not present while you are doing this, will no longer work.