Fan Control Module Inspection

Connect the M-MDS to the DLC-2.
Start and warm up the engine.
Using the simulation function, gradually increase the FAN_DUTY value from 0% to 90%. (See ON-BOARD DIAGNOSTIC TEST .)
- Visually verify that the operation speed of the cooling fan conforms to the override drive.

Using the M-MDS, change the operation condition of the A/C while measuring the engine coolant temperature under the following conditions, and verify that the cooling fan operates correctly.

Because there is an intake air temperature decrease control setting, the cooling fan may operate when IAT sensor No. 1 detects 60°C {140°F}or more according to conditions other than those mentioned.
Because there is an engine protection control setting, the cooling fan may operate when IAT sensor No. 2 detects 70°C {158°F}or more according to conditions other than those mentioned.

FAN CONTROL MODULE NO. 1, NO. 2 [A/C OFF]

Engine Coolant Temperature °C {°F}	Cooling Fan Operation Status
less than 98 {208}	Off
more than 100 {212}	On

Verify that the PID FAN DUTY value is a value other than 0 while measuring the vehicle speed under the following conditions using the M-MDS.

FAN CONTROL MODULE NO. 1, NO. 2 [A/C ON]

Vehicle Speed (km/h {MPH})	PID FAN_DUTY [%]
less than 85 {52}	value other than 0
more than 85 {53}	0

If normal operation cannot be verified in Steps 3, 4 and 5, inspect the input signals of the following parts. Replace the cooling fan motor if all the following parts are normal.
- ECT sensor
- Refrigerant pressure sensor
- Battery