TEST RESULTS
1
FUSE CONDITION CHECK
EVERYTHING OK
PROBLEMS ENCOUNTERED
OPERATION
Check whether the fuse upstream of the fan is broken
Go to Step 2
Fuse faulty or not working correctly
Replace the damaged fuse after ascertaining the causes of the malfunction
2
FAN CONNECTION CHECK
With vehicle's engine off, check that the fan power supply connections are correct.
Go to Step 3
Fault on the fan power supply wiring
Restore the correct power supply for the fan
3
FAN OPERATION CHECK
With the engine on and engine temperature approximately 90°, or as an alternative, activating the compressor (A/C version), check fan activation
End of diagnosis
The fan does not engage
Go to Step 4
4
Disconnect the wiring from the fan connector and supply it directly with a 12 V voltage, using a DC feeder. Check that it rotates correctly.
Go to Step 5
The fan does not rotate correctly
Replace the engine fan
Op. 1088E10 RADIATOR COOLING FAN - R + R
5
FAN CURRENT UPTAKE CHECK
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 18 A.
Current uptake above 18 A