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Home >> Hyundai >> 2009 >> Genesis 4.6 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (Fuel System (G8BA - GSL 4.6)) (1 Of 2) >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2) >> Ground Circuit Inspection >> Check open in harness
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Check open in harness

  1. IG "ON" and disconnect HO2S (B1/S2) connector.
  2. Measure voltage between signal terminal of HO2S (B1/S2) harness connector and chassis ground. (Measurement "A")
  3. Measure voltage between signal and ground terminals of HO2S (B1/S2) harness connector. (Measurement "B")

    Specification:  Voltage difference between measurement "A" and "B" is below 200mV.

  4. Is the measured voltage within specification?

    YES 

    • Go to "COMPONENT INSPECTION" procedure.

    NO 

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