Sunload Sensor
WARNING: This page is about a different car, the 1995 Cadillac Seville, 1995 Cadillac Eldorado, and 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
The sunload sensor is located under the center defroster grille, at base of windshield. This sensor senses the heat load of sun on the vehicle. The ACP processes this signal together with other temperature signals to determine the cooling necessary for maintaining selected interior temperature.