Note. If the ignition is turned ON (ON (IG)), the cooling fan may sometimes turn on. This is not a sign of a malfunction.
Turn on the ignition (ON (START)), and the air conditioner should be turned off.
Fig. 2.404. The cooling system fan does not rotate
Make sure the cooling fan is not spinning (fig. 2.404).
Otherwise, check the cooling fan relay and the coolant temperature sensor, then check for contact in the connector and make sure there is no break in the wire between the fan relay and the temperature sensor.
Fig. 2.405. Coolant temperature sensor connector
Disconnect the coolant temperature sensor connector (fig. 2.405).
Fig. 2.406. The cooling system fan is rotating
Make sure the cooling fan is spinning (fig. 2.406).
Otherwise, check the fuses, cooling fan relay, engine control unit and cooling fan, then check if there is 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 system 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 turned off.
Make sure the cooling fan is spinning.
Otherwise, replace the coolant temperature sensor.
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Checking the fan motor
Disconnect the fan connector.
Fig. 2.407. Checking the fan motor
Connect the battery and ammeter to the fan connector (fig. 2.407).
Make sure the fan rotates smoothly, then use the ammeter to determine the current strength.
Nominal current: 7.6-10.9A at 20°C.
If the current is not within the rated value, replace the fan motor.
Connect the fan connector.