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Engine Control System Diagnosis (2 Of 2) - HEV
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DTC P2251: O2 Sensor Reference Ground Circuit Open-Bank 1 Sensor 1
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Diagnostic Circuit Diagram
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Diagnostic Circuit Diagram
Fig 1: Oxygen Sensor Diagnostic - Circuit Diagram
Courtesy of KIA MOTORS AMERICA, INC.
Courtesy of KIA MOTORS AMERICA, INC.