Home › Jeep › 2024 › Gladiator Nighthawk, Part Time T/Case Control, Automatic Trans › Repair and Diagnosis › Engine Performance › System › 3.6L (GPEC 2A) - DTCS P0032 To P0073 › DTC Troubleshooting › P0051-O2-Sensor 2/1 Heater Circuit Low › When Monitored