Ford 2001 Econoline Owner's Manual page 63

Controls and features
If there is any potential remote keyless entry problem with your vehicle,
ensure ALL key fobs (remote entry transmitters) are brought to the
dealership, to aid in troubleshooting.
Unlocking the doors
Press this control to unlock the
driver's door. The interior lamps will
illuminate.
Press the control a second time
within three seconds to unlock all
doors.
Locking the doors
Press this control to lock all doors.
To confirm all doors are closed and
locked, press the control a second
time within three seconds. The
doors will lock again and the horn
will chirp.
Sounding a panic alarm
Press this control to activate the
alarm.
To deactivate the alarm, press the
control again or turn the ignition to
ACC or ON.
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