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Home >> Hyundai >> 2012 >> Accent GLS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P2251: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1) >> General Information >> Diagnostic Circuit Diagram
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Diagnostic Circuit Diagram

Fig 1: Oxygen Sensor (UP), PCM And ECM Connector Terminals
G08802794Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: Oxygen Sensor (UP), PCM And ECM Connector Terminals
G08802795Courtesy of HYUNDAI MOTOR AMERICA
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