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Home >> Chrysler >> 2012 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (3.6L - DTCS P2246 To U1431) >> Diagnosis And Testing >> P2273-O2 Sensor 2/2 Signal Stuck Rich >> Set Condition:

Set Condition:

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The Powertrain Control Module (PCM) monitors the downstream O2 Sensor. If the PCM does not detect a rich to lean switch within a specific time during a decel fuel shutoff event, the monitor will fail. Two trip fault. Three good trips to turn off the MIL.