Radiator Cooling Fan: Testing and Inspection

INSPECTION

Radiator Fan System Wiring Diagram:

Operating condition:
Radiator fan operates depending on the radiator fan operation mode related to engine coolant temperature or the radiator fan operation mode related to A/C compressor load, whichever is higher as an operation mode.
^ Radiator fan operation mode related to engine coolant temperature

Radiator fan operation mode related to engine coolant temperature:

^ Radiator fan operation mode related to A/C compressor load

Radiator fan operation mode related to A/C compressor load:

DIAGNOSIS:
Radiator main fan and radiator sub fans do not rotate under the above operating conditions.

Step 1:

Step 2-8:

Step 9-17:

Step 18-26:

Step 27-31: