Ford 1996 Windstar Manual page 134

The Speed Dependent feature comes disabled from the factory,
but can be activated at any time by using the following
procedure.
Make sure the two front doors are securely closed.
1.
Insert the key into the ignition and turn first to the ON
2.
position (the gauges on the instrument panel will not
illuminate) and then back to the OFF position. Remove the
key and within 30 seconds:
Press and hold the washer button on the end of the turn
3.
signal lever.
Within two seconds, put the key back in the ignition and
4.
turn to the ON position.
Hold the washer button down until a long (two second) tone
5.
is heard. Release the button while the tone is active.
After the long tone, a confirmation sequence will be heard.
6.
One beep indicates the feature is inactive. Two beeps
indicates the feature is active.
Repeat this procedure any time you want to cancel or reactivate
the Speed Dependent feature.
Windshield Washer
To clean the windshield, push in the washer button on the end
of the turn signal lever. For a constant spray, push and hold the
button. If the windshield wipers are off, one momentary push
results in one wipe and a longer push in three wipes and
activation of washer fluid. If the windshield wipers are in
interval mode a quick tap results in two wipe cycles and a
longer tap in three wipes and washer fluid activation.
Do not try to clean the windshield when the washer fluid
container is empty and never activate the washers for more than
fifteen seconds continuously. This could damage the washer
pump system.
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