Ford Villager Owner's Manual page 82

Autolamp thumbwheel location
Move the thumbwheel all the way to the right. The
4.
autolamp will automatically turn the lamps on and off.
NOTE: Be sure that you do not put anything on top of the
photodiode located in the top right side of the
instrument panel speaker grille. The photodiode
controls the autolamp; if it is covered, the photodiode
reacts as if it is nighttime, and the headlamps will be
illuminated.
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