Vauxhall Workshop Service and Repair Manuals

Coolant Temperature Sensor, X 17 DTL  

The coolant temperature sensor is attached to the thermostat housing and measures the temperature of the coolant as a representative value for the engine temperature.  

The signal from the coolant temperature sensor is required for:  

 

•  the cooling module control unit (actuation of radiator fans)   •  the preheating system   •  the exhaust gas recirculation   •  the temperature gauge   •  the overheating prevention characteristic map (if the coolant temperature is too high, the injection quantity is limited)     I   Coolant temperature sensor       1   Electrical connection   2   Casing   3   NTC resistor   B12   Coolant temperature sensor           II   Characteristic curve   Ω   Resistance   ° C   Coolant temperature