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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (3 Of 3) (Except HEV) >> DTC P2251-00: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1) >> DTC Information >> DTC Description
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DTC Description

The PCM monitors front O2 sensor reference ground circuit (VG) and sets DTC P2251-00 if front O2 sensor signal stuck is detected.

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