Models With A/C

WARNING: This page is about a different car, the 2004 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

On models equipped with an air conditioning system, the ECM receives signals from the engine coolant temperature sensor, vehicle speed sensor and A/C switch, and based on these signals, the ECU controls the fan speed to Hi or Low.

Fig 1: Radiator Fan Operation Condition Chart - With A/C

Courtesy of SUBARU OF AMERICA, INC.