FixVault

Home › Jeep › 2019 › Grand Cherokee Trackhawk › Repair and Diagnosis › Engine Performance › System › 6.2L - DTCS C053D To P0138 › DTC Troubleshooting › P0057-O2 Sensor 2/2 Heater Circuit Low › When Monitored

When Monitored

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