P0481

WIRING DIAGRAM

CIRCUIT DESCRIPTION
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 control module (amplifier) or when engine coolant temp. is 105 °C, 221 °F or more.

Detecting Condition / Trouble Area:

DTC DETECTING CONDITION AND TROUBLE AREA

DTC CONFIRMATION PROCEDURE

NOTE: Check to make sure that the following conditions are satisfied when using this DTC CONFIRMATION PROCEDURE.
- Intake air temp.: -14 °C, 6.8 °F or higher
- Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)

1. With ignition switch OFF, connect scan tool.
2. Turn ON ignition switch and clear DTC using scan tool.
3. Start engine and warm up engine to normal operating temperature.
4. Run engine at idle and turn both A/C switch and heater blower switch ON (turn ON air conditioning) for 3 min. or more.
5. Check DTC and pending DTC.

Step 1 - 3:

TROUBLESHOOTING