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Engine Control System Diagnosis (3 Of 3)
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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: O2 Sensor Circuit Diagram
Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: O2 Sensor Connector Terminals
Courtesy of KIA MOTORS AMERICA, INC.
Courtesy of KIA MOTORS AMERICA, INC.
Courtesy of KIA MOTORS AMERICA, INC.