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

Set Condition:

The Powertrain Control Module (PCM) detects that the Oxygen Sensor 1/2 voltage is greater than 3.99 volts for 40 seconds. One Trip Fault. Three good trips to turn off the MIL.

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