LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2004 >> Baja Base, Standard >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Mechanism & Function >> Compressor Control System >> Fan Control
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fan Control

The main fan and sub fan are switched ON and OFF according to the operating modes as shown in the following table.

ENGINE COOLANT TEMPERATURE SPECIFICATION

Vehicle speed A/C compressor Engine coolant temperature
Below 95°C (203°F) 95-99°C (203-210°F) Over 100°C (212°F)
Operation of radiator fans Operation of radiator fans Operation of radiator fans
Main Sub Main Sub Main Sub
Below 19 km/h (12 MPH) OFF OFF OFF ON OFF ON ON
ON ON ON ON ON ON ON
Between 20 and 69 km/h (12 and 43 MPH) OFF OFF OFF ON OFF ON ON
ON ON ON ON ON ON ON
Between 70 and 105 km/h (43 and 65 MPH) OFF OFF OFF OFF OFF ON ON
ON ON OFF ON ON ON ON
Over 106 km/h (66 MPH) OFF OFF OFF OFF OFF ON ON
ON OFF OFF ON OFF ON ON