Monitor Scantool Data

Connect scantool to DLC (Data Link Cable).
Warm up the engine to normal operating temperature.
Monitor "HO2S (B1/S2)" parameter on scantool.

Fig 1: Monitoring HO2S (B1/S2) Parameter On Scantool
Courtesy of KIA MOTORS AMERICA, INC.
Is the "HO2S (B1S2)" parameter displayed correctly?
YES
1. 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
1. Go to "TERMINAL & CONNECTOR INSPECTION " procedure
  CAUTION: This DTC might be caused by the malfunction of Heater circuit, so, check the heater circuit first.