Contents: Overheat prevention function 🠛 Operation of the electric fan of the…🠛 Operation of the coolant temperature…🠛
The electric fan of the engine cooling system is controlled by the injection system ECU.
Overheat prevention function
The overheat prevention system is controlled by the injection system ECU. Information about the coolant temperature comes from the injection system.
When the card is set to the 2nd fixed position in the reader, the system switches to the monitoring mode. If the coolant temperature exceeds the threshold of 112.5°C for the F4P engine and 103.5°C for the K4M engine within 3 minutes after the engine is stopped, the electric fan of the cooling system switches on at low speed.
If the coolant temperature drops below 100°C, the electric fan relay of the engine cooling system switches off. The electric fan operating time cannot exceed 10 minutes.
Operation of the electric fan of the engine cooling system
The electric fan turns on at low speed when the coolant temperature exceeds 98°C and turns off when the temperature drops below 95°C.
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The electric fan turns on at high speed when the coolant temperature exceeds 102°C and turns off when the temperature drops below 99°C.
Operation of the coolant temperature warning light
The coolant temperature warning light comes on when the coolant temperature exceeds 118°C and goes out; when the temperature drops below 115°C.