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Home >> Hyundai >> 2021 >> Tucson Ultimate, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (5 Of 5) >> DTC P2251-00: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1) >> DTC Information >> DTC Description

DTC Description

The PCM monitors front O2 sensor reference voltage circuit (VN) and sets DTC P225100 if front O2 sensor signal stuck is detected.

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