Recognition by the water temperature thermistor thermistor temperature sensor and bimetal composition, VDO sensor special, shown in Figure 1. This is where the water temperature thermistor is sending pieces of information, bimetal electric wire as receiving elements, both series. Send items namely water temperature sensor installed in the waterway in contact with the cooling water, VDO sensor manufacturers, when the water temperature is low, the thermal resistance value is high, in the loop current is small, small heat resistance wire, VDO sensor wholesale, bimetal slightly bent, indicating needle in a low temperature region (C region). When the water temperature is high, the thermal resistance value is small, the current loop through a large, heat resistance wire is larger, a larger bending bimetal indicating needle pointing to the high temperature region (H region). Water temperature sensor temperature gauge uses a negative temperature coefficient thermistor, which is installed in the cylinder head water jacket, water temperature with temperature sensors. 1 thermistor thermistor temperature measurement 1; ⒉ information transmission parts; three pairs of metal sheet; ⒋ indicator pin; 5 information receiving member 1 thermistor; 2 a conductive sleeve; 3 conductive spring; afternoon copper joint; sg tube ; 6 side button; ⒎ conductive rod; 8 wire temperature sensor with the water table, water table and its terminal phase, and the other end through the sensor housing Ground. When the water temperature sensor fails, often displayed cold start or hot car temperature signal, VDO sensor, ECU not provide too thick mixture of signals, only relatively lean fuel mixture supplied to the engine air (hot car signal), the engine cold start easy. This situation needs to check the water temperature sensor plug contact is normal or replace the water temperature sensor. For example: Read the car static engine (referring to the cold car) data found that the temperature of the engine coolant ECU output of 105 ℃, but this time (the set temperature in winter) the actual temperature of the engine is only 1 ℃, Obviously, the water temperature signal of engine ECU received is wrong, indicating a problem with the water temperature sensor sales VDO sensor | VDO (certified) | VDO sensor provided by the Dongguan City, South City Zhongxin Electrical and Mechanical operation. Dongguan Nancheng Zhongxin Electrical and operating (zhongxin888.net.cn) Dongguan, Guangdong, industrial products leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Zhongxin Electrical and Mechanical leadership with the staff warmly welcome all inquiries negotiations to create a better future for electromechanical faithful.