how to hook up a water temp gauge on a new car

• 2022-09-20

The 12V water temp gauge is connected to the key, and then the sensing plug is hook up to the new car water channel . External water temperature meter set, with instrument , harness , sensor and other accessories . The body of the water temperature meter is self luminous on a white background , which is more suitable for observing the water temperature at night. There is a digital water temperature meter to show the water temperature lamp . Under normal water temperature, the water temperature lamp is green, and when the water temperature is high, the red light will be on . The sensor of the water temperature gauge is a thermistor sensor . It is fixed on the engine cooling water channel with threads . The thermistor determines the current flowing through the coil winding of the water temperature meter. Thereby driving the head pointer to swing . In the past , tap water was used as the cooling water for automobile engines . Now many new car engine cooling systems use special coolant . It is also called a coolant temperature gauge .

The hazard warning lamp is used to warn other vehicles and pedestrians in case of major failure or emergency . The hazard warning signal is represented by the simultaneous flashing of the front , rear , left and right turn signals .

Since the hazard warning lamp circuit connects the flasher to the battery, the hazard warning lamp can also be used when the ignition switch is off and the vehicle is stopped.

There are generally two water temperature sensors, one is installed beside the water tank and the other is installed on the thermostat. The function of the water temperature sensor is to convert the cooling water temperature into an electrical signal , which is input into the ECU to correct the injection quantity .

How to set the display of the automobile water temperature meter ? Press the brake pedal of the new Jetta and turn the vehicle key. The instrument lights up and the whole vehicle is powered on . At this time , the mileage that can be driven with the remaining fuel is displayed . Press the set key under the instrument panel to adjust . Press once to display the outdoor temperature , and press twice to display the water temperature.