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Component Inspection

Inspection Item	Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Item	Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Oscilloscope (HO2S (Bank1, Sensor1))	Engine "ON". Measure the waveform using VMI of KDS.	HO2S (Bank1, Sensor1) connector	3 (virtual ground)	HO2S (Bank1, Sensor1) connector	1 (voltage nernst)	Fig.1
Oscilloscope (HO2S (Bank1, Sensor1))	Engine "ON". Measure the waveform using VMI of KDS.	HO2S (Bank1, Sensor1) connector	6 (pumping current)	HO2S (Bank1, Sensor1) connector	4 (trim resistor)	Fig.1

G16436273

Courtesy of KIA MOTORS AMERICA, INC.

Good

Go to "VERIFICATION OF REPAIR " procedure.

No Good

Carefully re-do this troubleshooting guide steps.
If no problems were found with the circuits or connectors, replace the HO2S (Bank1, Sensor1) and Go to "VERIFICATION OF REPAIR " procedure.