Circuit Description
WARNING: This page is about a different car, the 2000 Isuzu Rodeo and 2000 Isuzu Amigo. However, it is still accessible from the selected car via links, so may be relevant.
PCM monitors A/C refrigerant pressure through the use of a 3-wire sensor. If PCM senses the pressure falls to less than a threshold value, DTC P0532 will set.
Condition required to set DTC is; A/C pressure sensor is less than 5 counts (.1 volt) for 125 seconds for a period of 250 seconds.