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Home >> Kia >> 2005 >> Amanti >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (1 Of 2) >> DTC P0154 Ho2S Circuit No Activity Detected (Bank 2 / Sensor 1) >> Monitor SCANTOOL Data

Monitor SCANTOOL Data

  1. Connect Scantool & Engine "ON".
  2. Warm up the engine to normal operating temperature.
  3. Monitor the "HO2S VOLTAGE(B2S1)" parameter on scantool.

    Specification: Verify that the signal is varying from rich(above 0.45V) to lean(below 0.45V) a minimum of 3 times in 10 seconds (voltage will vary between 0.1 and 0.9V).

    Fig 1: Monitor Signal Waveform Of HO2S With Scantool - Display
    G03876573Courtesy of KIA MOTORS AMERICA, INC.
  4. Is the HO2S parameter displayed within specifications?

    YES 

    • 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, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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