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Home >> Kia >> 2009 >> Spectra5 2.0 1, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) >> P2251: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1) >> Monitor DTC Status >> Reference Ground Circuit Inspection
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Reference Ground Circuit Inspection

  1. Ignition "OFF"
  2. Disconnect HO2S and PCM connectors.
  3. Measure resistance between terminals 2 of the sensor harness connector and 53 of the PCM harness connector

    Specification: Approx. 0Ω

    Fig 1: Measuring Resistance Between Terminals 2 Of Sensor Harness And 53 Of PCM Harness Connectors
    G06415344Courtesy of KIA MOTORS AMERICA, INC.
  4. Is resistance within the specification?

    YES 

    NO 

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