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Home >> Hyundai >> 2016 >> Equus Signature >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (1 Of 3) >> DTC P0156: O2 Sensor Circuit (Bank 2 / Sensor 2) >> DTC Inspection >> Monitor GDS Data
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Monitor GDS Data

  1. Connect GDS to DLC (Data Link Cable).
  2. Warm up the engine to normal operating temperature.
  3. Monitor "HO2S (B2/S2) " parameter on the "Current Data  " with GDS.
    Fig 1: Scantool Display - Normal Graph Of Front HO2S And Rear HO2S At Idle
    G10391208Courtesy of HYUNDAI MOTOR AMERICA
  4. Are the parameters displayed correctly?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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