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Home >> Hyundai >> 2017 >> Azera Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (1 Of 3) >> DTC P0154: O2 Sensor Circuit No Activity Detected (Bank 2/Sensor 1) >> Scantool Diagnostics >> Monitor GDS Data

Monitor GDS Data

  1. Connect GDS to Data Link Connector (DLC).
  2. IG "ON".
  3. Select "DTC" button, and then Press "DTC Status" to check DTC's information from the DTCs menu.
  4. Read "DTC Status" parameter.
    Fig 1: Screen Display - DTC Status Parameter
    G12087703Courtesy of HYUNDAI MOTOR AMERICA
  5. Is parameter displayed "Present fault"?

    YES 

    • Go to "Terminal and Connector Inspection" procedure below.

    NO 

    • Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair " procedure.