Radiator Sub Fan Relay

Radiator Sub Fan (With A/C model only)

OPERATION

DETECTING CONDITION:
Condition (1):
^ Engine coolant temperature is below 95°C (203°F).
^ A/C switch is turned ON.
^ Vehicle speed is below 19 km/h (12 MPH).
Condition (2):
^ Engine coolant temperature is above 100°C (212° F).
^ A/C switch is turned OFF.
^ Vehicle speed is below 19 km/h (12 MPH).

TROUBLE SYMPTOM:
^ Radiator sub fan does not rotate under conditions (1 ) and (2) above.





3A1: CHECK POWER SUPPLY TO SUB FAN MOTOR.





3A2: CHECK GROUND CIRCUIT OF SUB FAN MOTOR.





3A3: CHECK POOR CONTACT.





3A4: CHECK SUB FAN MOTOR.





3A5: CHECK POWER SUPPLY TO SUB FAN RELAY.





3A6: CHECK POWER SUPPLY TO SUB FAN RELAY.





A37: CHECK 20 A FUSE.





A38: CHECK POWER SUPPLY TO A/C RELAY HOLDER 20 A FUSE TERMINAL.





3A9: CHECK FUSE.





3A10: CHECK SUB FAN RELAY.





3A11CHECK SUB FAN RELAY.





3A12: CHECK HARNESS BETWEEN SUB FAN RELAY TERMINAL AND SUB FAN MOTOR CONNECTOR.





3A13: CHECK HARNESS BETWEEN SUB FAN RELAY AND ECM.





3A14: CHECK POOR CONTACT.