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Home › Dodge and Ram › 2021 › ProMaster 2500 › Repair and Diagnosis › Engine Performance › System › 3.6L - DTCS P0139 To P0345 › DTC Troubleshooting › P0161-O2 Sensor 2/2 Heater Performance › Set Condition

Set Condition

No O2 Sensor output is received when the PCM powers up the O2 Sensor Heater.