A/C Sunload Sensor

WARNING: This page is about a different car, the 2002 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.

The A/C sunload sensor (19E663):

is located on the top RH side of the instrument panel (04320) above the glove compartment (06010).
contains a photovoltaic diode that is sensitive to light.
has some unspecified resistance across the terminals depending upon the amount of light reaching the photovoltaic diode; therefore the only test that can be performed is for an internal short circuit.