Ford 1996 Aerostar Manual page 81

Check engine warning light symbol
Electronic 4-Wheel Drive Warning Light
(If equipped)
The Electronic 4-Wheel Drive Warning Light
turns on when the Electronic 4-Wheel Drive
system is not working properly. This light comes
on briefly when you turn the ignition key to the
ON position, but should turn off when the
engine starts. If the light does not come on when
you turn the ignition to the ON position, or if it
comes on and stays on when you are driving,
have your vehicle serviced as soon as possible.
The 4WD light will go off after a few seconds
and stay off if all systems are operating
correctly. If a problem is detected, the 4WD
warning light will flash a certain number of
times indicating the location of the problem. The
flashing will continue until the problem is
corrected. Each time the ignition key is turned
on the controller will detect the problem and
flash the signal. The 4WD system remains safe to
operate and the vehicle should be returned for
service.
Electronic 4-wheel drive warning light
80