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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Control System Diagnosis - 3.3L (3 Of 9)) >> DTC P0140-00: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2) >> Wiring Inspection >> Ground Circuit Inspection >> Check open in harness

Check open in harness

WARNING: This page is about a different variant/trim than selected.
  1. IG "ON". 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 200 mV.

  4. Is the measured voltage within specification?

    YES 

    NO 

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