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Home >> Jeep >> 2012 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L & 2.4L - DTCS P000A To P0303 >> Diagnosis And Testing >> P0138-O2 Sensor 1/2 Circuit High >> When Monitored:
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When Monitored:

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