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Home › Jeep › 2018 › Compass Trailhawk › Repair and Diagnosis › Engine Performance › System › 2.4L - DTCS B104D To P0222 › DTC Troubleshooting › P0031-O2 Sensor 1/1 Heater Circuit Low › Set Condition

Set Condition

The Powertrain Control Module (PCM) detects that the Oxygen Sensor 1/1 Heater Control circuit is shorted low (heater resistance less than 2.0 Ohms) for at least 2.16 seconds.