256 ENGINE 273 MPFI Stand Alone Diagnosis Refer 3.11.5 Refer Trouble Shooting and Diagnosis. SystemDiagnosis • Use TATAdiagnostic tool. • Check for coolant temp values. On vehicle Removal, Inspection & Refitment Procedure Removal of Coolant Temp Sensor • Remove electrical connector of water temp sensor. • Unscrew the coolant temp sensor fromengine block with the help of open spanner. Inspection of Coolant Temp Sensor • Check the resistance value of water temp sensor with the help of multimeter. Refitment of Coolant Temp Sensor • Tighten the coolant temp sensor on engine block with the help of open spanner. Precaution : Ensure proper tightness of the coolant temp sensor. Loose tightness of the same cause water leakage. • Connect electrical connector of coolant temp sensor. Precaution : Ensure that the connector is properly connected Storage conditions: Storage Temperature -30oC to +60 oC Relative Humidity 0-60% Shelf life from 12 years production date Protect parts from rain, snow, solar radiation and dust. After 8 years, components should be rechecked for functionality .Don’t drop the sensor. Pin Details Signal Connector ECU Pin No. Pin No. Coolant Temperature 1 44 Input Coolant Temperature 2 30 Sensor Ground Pin Configuration :
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