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Home >> Genesis >> 2017 >> G90 3.3T Premium, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 4) - 3.3L >> DTC P0155: O2 Sensor Heater Circuit (Bank 2 Sensor 1) - Performance >> DTC Inspection >> GDS data analysis

GDS data analysis

  1. Connect GDS and select "DTC Analysis" mode.
  2. Warm up the engine.
  3. Monitor the parameters related to DTC on the "Current Data" menu of the GDS below.
    Fig 1: Screen Display - Upstream O2 Sensor Service Data Review
    G11425010Courtesy of HYUNDAI MOTOR AMERICA
  4. Is parameter displayed within specifications?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair " procedure.

    NO 

    • Go to next step.
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