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	6 (current pump)	Fig.1 below
Oscilloscope (HO2S (Bank1, Sensor1))	Engine "ON". Measure the waveform using VMI of KDS.	HO2S (Bank1, Sensor1) connector	1 (voltage nernst)	HO2S (Bank1, Sensor1) connector	4 (current adjust)	Fig.1 below
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.2 below

Fig.1

G15807092

Courtesy of KIA MOTORS AMERICA, INC.

Fig.2

G15807093

Courtesy of KIA MOTORS AMERICA, INC.

Good

Go to "VERIFICATION OF REPAIR " procedure.

No Good

Carefully re-do troubleshooting steps.
If no problems were found with the circuits or connectors, replace the HO2S (Bank1, Sensor1) or HO2S (Bank1, Sensor2) and Go to "VERIFICATION OF REPAIR " procedure.