P0481

DTC P0481 A/C COOLING FAN CONTROL CIRCUIT MALFUNCTION





WIRING DIAGRAM

CIRCUIT DESCRIPTION





This system controls operation (ON/OFF) of the A/C condenser fan motor. A/C condenser fan motor is turned ON and OFF by its relay which ECM controls.
A/C condenser fan motor is turned ON when ECM outputs A/C ON signal to A/C amplifier or when engine coolant temp. is 110°C (230°F) or more.






DETECTING CONDITION

DTC CONFIRMATION PROCEDURE
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON.
3) Start engine and then turn both A/C switch and heater blower switch ON for 2 sec or more.
4) Run engine at idle for 5 sec or more with A/C switch and heater blower switch OFF
5) Check DTC and pending DTC.

















INSPECTION