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Home >> Jeep >> 2012 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> 3.7L - DTCS P0016 To P0205 >> Diagnosis And Testing >> P0155-O2 Sensor 2/1 Heater Performance >> When Monitored:
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

When Monitored:

Continuously during O2 sensor heater operation with battery voltage between 10.4 and 15.75 volts and no O2 sensor circuit DTCs present.

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