244 - Injection system coolant temperature sensor and coolant temperature gauge in the instrument cluster; 3-pin sensor, two pins are used to transmit coolant temperature signals to the injection computer, and one pin is used for the coolant temperature gauge on the instrument panel;
259 - Temperature sensor for switching on the coolant overheating warning light on the instrument panel.
Sensor 244 provides:
- coolant temperature indication in the instrument panel;
- providing information about the engine coolant temperature to the injection computer.
Depending on the coolant temperature, the injection computer issues control commands:
- injection system;
- group of electric fans.
The electric fan turns on at high speed (the low and high fan speed modes are controlled by the air conditioner computer), if the temperature exceeds 99°C, and switches off if the temperature drops below 96°C (if it is necessary to perform a check, turn off the air conditioner).
[Text provided by an online resource: RenaultBook]