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Home › Chrysler › 2018 › 300 C › Repair and Diagnosis › Engine Performance › System › 5.7L - DTCS P000B To P0197 › DTC Troubleshooting › P0037-O2 Sensor 1/2 Heater Circuit Low › When Monitored

When Monitored

Battery voltage between 10.5 and 15.75 volts.
Continuously with the O2 Sensor heater commanded on.
The O2 Sensor Heater circuit high fault is not active.