Electronic Compressor Control Logic (3.0L)
WARNING: This page is about a different car, the 2002 Saturn LW300, 2002 Saturn LW200, 2002 Saturn L300, 2002 Saturn L200, and 2002 Saturn L100. However, it is still accessible from the selected car via links, so may be relevant.
A/C compressor will be controlled by PCM/ECM/BCM control logic under the following conditions:
- Disabled if engine coolant temperature exceeds 240°F (116°C).
- Enabled when coolant temperature is below 237°F (114°C).
- Disabled if A/C system pressure exceeds 435 psi (2997 kPa).
- Enabled when A/C system pressure is below 290 psi (1998 kPa).
- Disabled if A/C system pressure goes below 26 psi (180 kPa).
- Enabled if A/C system pressure is above 36 psi (248 kPa).