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Home › Jeep › 2021 › Cherokee Trailhawk › Repair and Diagnosis › Engine Performance › System › 3.2L - DTCS P0073 To P0298 › DTC Troubleshooting › P0135-O2 Sensor 1/1 Heater Performance › Set Condition

Set Condition

PCM detects no temperature change in the O2 Sensor Heater element when the heater circuit is active.