ELECTRICAL COOLANT FAN AND CONDENSER FAN CONTROL SYSTEM
F2-136wiring diagramCoolant fan relay No.1 is ATX only.
ELECTRICAL COOLANT FAN CONTROL
To improve engine reliability, the electric coolant fan is controlled by ECM. MX-3 models employ a LOW/HIGH control of the coolant fan. These controls operation under the conditions below.
Coolant fan relay operation
Engine coolant temperature above 100°C {212°F}
Fan relay No.1OFF
Fan relay No.2ON
Fan relay No.3OFF
LOW/HIGH operationLOW
A/C switch ON
Fan relay No.1OFF
Fan relay No.2ON
Fan relay No.3OFF
LOW/HIGH operationLOW
TEN terminal grounded and closed throttle position switch OFF
Fan relay No.1ON
Fan relay No.2ON
Fan relay No.3ON
LOW/HIGH operationHIGH
Engine coolant temperature above 108°C {226°F}
Fan relay No.1ON
Fan relay No.2ON
Fan relay No.3ON
LOW/HIGH operationHIGH
Engine coolant temperature sensor malfunction
Fan relay No.1ON
Fan relay No.2ON
Fan relay No.3ON
LOW/HIGH operationHIGH