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Home >> Fiat >> 2014 >> 500e >> Repair and Diagnosis >> Engine Performance >> System >> Battery Pack Control Module (BPCM) - DTCS P00B2-00 To P0C76-00 - 500E >> Diagnosis And Testing >> P00B4-00-Radiator Coolant Temperature Sensor Circuit High >> Theory Of Operation

Theory Of Operation

The Radiator Coolant Temperature Sensor is a variable resistor that functions as a normal two wire 5 volt sensor. The Battery Pack Control Module (BPCM) supplies a 5 volt reference and a ground to the sensors low reference signal circuit.

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