How to Determine Whether a Water Temperature Sensor is Good or Bad?
1 Answers
Water temperature sensor good or bad judgment methods are: 1. The water temperature gauge pointer directly points to the highest position; 2. The water temperature gauge pointer does not move; 3. Use a digital resistance simulator to simulate water temperature and compare it with the actual situation; 4. Use an infrared thermometer to test the actual temperature of the water temperature sensor and compare it with the water temperature gauge. The functions of the water temperature sensor are: 1. Through internal resistance changes, the sensor's resistance changes alter the current passing through it, thereby driving the water temperature gauge changes, indirectly reflecting the engine's operating temperature; 2. Providing the engine control unit with an analog signal of temperature changes.