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Component Inspection

Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Engine "ON" (warm up condition).	HO2S (Bank1, Sensor1) connector	3 (pumping line)	HO2S (Bank1, Sensor1) connector	2 (nernst voltage)	Fig.1
Engine "ON" (warm up condition).	HO2S (Bank1, Sensor1) connector	1 (virtual ground)	HO2S (Bank1, Sensor1) connector	6 (trim resistor)	Fig.1

G13815440

Courtesy of KIA MOTORS AMERICA, INC.

Good

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 REPAIR " procedure.

No Good

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