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What is the normal resistance value of the Volkswagen Tiguan coolant temperature sensor?

1 Answers

JosieAnn

07/29/25 5:57pm

Sensor internal temperature measurement elements are all thermistors, with resistance values ranging between 275 ohms and 6500 ohms. Composition of the coolant temperature sensor: The water temperature and water level sensor consists of a thermostat section and a water level control section, accompanied by a pressure reduction device in front of the electric valve and a rotary silencing heater for heating. Function of the coolant temperature sensor: The function of the coolant temperature sensor is to convert the coolant temperature into an electrical signal. After input to the ECU, it can: adjust the fuel injection quantity; increase the fuel injection quantity at low temperatures. Adjust the ignition timing advance; increase the ignition timing advance at low temperatures, and retard it at high temperatures to prevent knocking. Influence the idle control valve; at low temperatures, the ECU controls the idle control valve action based on the coolant temperature sensor signal to increase the idle speed, affecting the EGR valve.

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