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Home >> Fiat >> 2014 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 1.4L - I4 Non-Turbo - DTCS P0016-00 To P0354-00 - 500 & 500C >> Diagnosis And Testing >> P0031-00-O2-Sensor 1/1 Heater Circuit Low >> Set Condition

Set Condition

The Powertrain Control Module (PCM) detects that the O2 Sensor Heater element input is below the minimum acceptable voltage. Two trip fault. Three good trips to turn off the MIL.