Diagram Showing Engagement Of Fans For Version With Air Conditioning - Fiat 1998 Marea Service Manual

Marea- Marea Weekend
99 update

Diagram showing engagement of fans for version with air conditioning

Low speed fan: it comes on when the temperature of the coolant reaches 95°C.
High speed fan: it comes on when the temperature of the coolant reaches 100°C: the first fan is only
switched off after the second one.
The engagement of the fans also depends on the state of the climate control system three stage pressure
switch which determines the switching on of the first fan and then, with a certain delay, that of the sec-
ond and the subsequent switching off.
1. Condition of three stage pressure switch
2. Condition of high speed fan
3. Condition of low speed fan
4. Engine coolant temperature progress
5. Three stage pressure switch engagement/disenagement delay
ON: fan/pressure switch activated
OFF: fan/pressure switch deactivated
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