A/C On

WARNING: This page is about a different car, the 2005 Suzuki Reno and 2005 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.

The ECM will turn the cooling fans on at low speed when the A/C system is on. The ECM will change to high speed when the coolant temperature reaches 115°C (239°F) or the high side A/C pressure reaches 1859 kPa (270 psi).
The cooling fans will return to low speed when the coolant temperature reaches 113°C (235°F) and the high side A/C pressure reaches 1449 kPa (210 psi).