What causes the Volkswagen Tiguan's electric fan to keep running?
1 Answers
If the fan of a Volkswagen Tiguan keeps running, it may indicate a problem with a sensor causing the engine to enter a fault mode. The most likely cause is an issue with the coolant temperature sensor. Alternatively, it could be due to engine overheating. The coolant temperature and level sensor consists of a thermostat section and a water level control section, accompanied by a pressure-reducing device before the electric valve and a rotary muffler heater for heating. More information about related sensors is as follows: 1. Principle: The water level sensor inside the container transmits the sensed water level signal to the controller. The computer within the controller compares the actual water level signal with the set signal, calculates the deviation, and then issues "open" or "close" commands to the water supply electric valve based on the nature of the deviation, ensuring the container reaches the set water level. 2. Note: After the water intake process is completed, the computer in the temperature control section sends an "open" command to the electric valve supplying the heating medium. The system then begins heating the water inside the container. Only when the set temperature is reached does the controller issue a command to close the valve, cutting off the heat source and putting the system into a heat preservation state. During programming, it is ensured that the electric regulating valve controlling the heat source does not open unless the system reaches a safe water level, thereby preventing heat loss and potential accidents.
