O2 Sensor Inspection

Inspection Item	Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Item	Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Oscilloscope (HO2S (Bank1, Sensor2))	Engine "ON". Measure the waveform using VMI of KDS.	HO2S (Bank1, Sensor2) connector	1 (signal)	HO2S (Bank1, Sensor2) connector	2 (ground)	Fig.1

Courtesy of KIA MOTORS AMERICA, INC.

Good

No Good

Carefully re-do this troubleshooting guide steps.
If no problems were found with the circuits or connectors, replace the HO2S (Bank1, Sensor2) and Go to "VERIFICATION OF REPAIR " procedure.