Pcm Code P032 - Open Map Sensor Circuit: Notes
WARNING: This page is about a different car, the 1993 Cadillac Seville and 1993 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
MAP sensor changes resistance based upon manifold vacuum. PCM provides a 5-volt reference and ground. MAP signal varies between zero and 5 volts as manifold vacuum varies. PCM Code P032 sets when PCM detects MAP sensor signal is too low.