L044 ENGINE HEATER FAN NOT WORKING/WORKING ONLY AT SECOND SPEED

		Test results
1	ENGINE FAN POWER SUPPLY FUSES CONDITION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Check the condition of the engine cooling fan power supply fuses	Go to Step 2	Faulty engine fan power supply fuses	Replace the faulty fuses (looking for the cause of the malfunction)
2	FAN LEAKAGE CURRENT CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	With the engine running, position the terminal of the ammeter clamp on the fan positive cable and measure the current uptake at max. speed, making sure it is below 20 A	Go to Step 3	Leakage current above 20 A	Replace the engine fan ceramic resistor
3	CURRENT UPTAKE FAULTS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Check all the components in the vehicle's electrical system that may cause irregular/excessive current uptake, such as: battery and alternator.	End of diagnosis	Fault found on the component	Replace the component that causes the fault