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Home >> Jeep >> 2008 >> Compass Limited, AWD, Automatic CVT >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> DTCS P0122 To P0222 >> P0138-O2 Sensor 1/2 Circuit High >> Monitor Conditions
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Monitor Conditions

  1. When Monitored: 

    With the Oxygen Sensor 1/2 heater temperature greater than 496° C (925° F) and battery voltage greater than 10.4 volts.