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Home >> Kia >> 2017 >> Rio SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2251: O2 Sensor Reference Ground Circuit/Open (Bank 1 / Sensor 1) >> General Information >> Diagnostic Circuit Diagram

Diagnostic Circuit Diagram

Fig 1: O2 Sensor Circuit Diagram

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Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: O2 Sensor Connector Terminals

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Courtesy of KIA MOTORS AMERICA, INC.

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