A/C On
- 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 1,859 kPa (270 psi).
- The cooling fans will return to low speed when the coolant temperature reaches 112 °C (234 °F) and the high side A/C pressure reaches 1,449 kPa (210 psi).