Circuit Description
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
The air suspension compressor has a temperature sensor. The overtemperature sensor is a thermal limit switch that is in the normally closed position. This provides a ground signal to the air suspension control module. The air suspension control module monitors the temperature sensor for a compressor overtemperature condition. On receipt of a compressor overtemperature condition, the air suspension control module switches OFF the compressor relay. The relay cannot be switched ON again until at least 3 minutes after removal of the overtemperature condition.