Note. If the ignition is on (ON (IG)), the cooling fan may sometimes turn on. This is not a malfunction.
Turn on the ignition (ON (START)), while the air conditioner must be turned off.
Pic. 2.404. Cooling fan does not rotate
Make sure the cooling fan is not spinning (pic. 2.404).
If not, check the cooling fan relay and coolant temperature sensor, then check for contact in the connector and check for an open in the wire between the fan relay and the temperature sensor.
Pic. 2.405. Coolant Temperature Sensor Connector
Disconnect the coolant temperature sensor connector (pic. 2.405).
Pic. 2.406. The cooling fan is spinning
Make sure the cooling fan is spinning (pic. 2.406).
If not, check the fuses, cooling fan relay, engine ECU and cooling fan, then check for a short in the circuit between the fan relay and the temperature sensor.
Connect the coolant temperature sensor connector.
Checking the Operation of the Cooling Fan at High Temperatures (above 96°C)
Start the engine, warm up the coolant to a temperature above 96°C.
Note. The coolant temperature is measured by a standard sensor installed in the cylinder head.
Make sure the air conditioner is off.
Make sure the cooling fan is spinning.
Otherwise, replace the coolant temperature sensor.
Checking the fan motor
Disconnect the fan connector.
Pic. 2.407. Checking the fan motor
Connect the battery and ammeter to the fan connector (pic. 2.407).
Make sure that the fan rotates without jerks, then determine the current strength using the ammeter.
Rated current: 7.6-10.9A at 20°C.
If current is not within specification, replace fan motor.
Connect the fan connector.