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Home >> Kia >> 2016 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) (HEV) >> DTC P2251: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1) >> DTC Inspection >> Monitor DTC Status

Monitor DTC Status

  1. Connect GDS to Data Link Connector(DLC).
  2. Ignition "ON".
  3. Monitor "Diagnostic Trouble Codes(DTC)  " with GDS.
    Fig 1: Display - DTC Description Of P2251
    G11828553Courtesy of KIA MOTORS AMERICA, INC.
  4. Is DTC status displayed as Present?

    YES 

    • Go to Monitor GDS Data procedure below.

    NO 

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