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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P000A To P0159 >> Diagnosis and Testing >> P0031-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. One trip fault. Three good trips to turn off the MIL.

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