How to connect the four wires of the electronic water thermometer in the car?

Connection mode of automobile electronic water thermometer: the water thermometer has three wires, a main wire and a secondary wire, and a signal wire to control the grounding money. After connecting the power cord of the water thermometer, the signal wire grounding meter will rise. Finally, just connect two inserted water temperature sensors. One end is connected to the signal, and the other end is grounded. The signal line of the instrument is f or s or e.

Causes of high temperature and low temperature:

1, insufficient coolant

Reducing coolant leakage will lead to an increase in water temperature. At this time, check whether there is coolant leakage! If so, the leaked parts should be repaired as soon as possible. If there is no leakage, add the corresponding coolant in time! It is not recommended to use white water as cooling liquid, because the heat absorption and heat release ability of water is not as strong as that of cooling liquid, which affects the cooling effect!

2. There is something wrong with the cooling fan.

When the vehicle is driving at high speed, the heat generated cannot be transferred to the antifreeze in time, which will affect the heat dissipation, and then lead to the temperature rise of the antifreeze, leading to boiling and so on! In this case, in the process of driving, first reduce the speed. Check whether the fan is faulty, and if so, repair it as soon as possible!