CONDENSER FAN RELAY CONTROL





Fan motor ON/OFF is controlled based on engine coolant temperature, vehicle speed and A/C functioning.

Reference
Vehicle speed [km/h]
A/C switch
A/C load signal
Engine coolant temperature [°C]
Power transistor for fan control
Fan action
0 to Approximately 54
ON
Low load (ON)
Approximately 100 or more
ON
Moves
Approximately 100 or less
OFF
Stops
Middle load (OFF)
-
ON
Moves
High load (duty)
-
ON
Moves
OFF
-
Approximately 100 or more
ON
Moves
Approximately 100 or less
OFF
Stops
Over Approximately 54
ON
Low load (ON)
Approximately 100 or more
ON
Moves
Approximately 100 or less
OFF
Stops
Middle load (OFF)
Approximately 100 or more
ON
Moves
Approximately 100 or less
OFF
Stops
High load (duty)
-
ON
Moves
OFF
-
Approximately 100 or more
ON
Moves
Approximately 100 or less
OFF
Stops