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Circuit Inspection

G13007936

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF". Disconnect the battery (-) cable. Disconnect the electrical connector(s) from the component and ECM.	O2 sensor (up) connector	1 (Virtual Ground)	Chassis ground	-	∞ (infinite)Ω
	O2 sensor (UP) connector	2 (Nernst Voltage)	Chassis ground	-	∞ (infinite)Ω
	O2 sensor (UP) connector	3 (Current Pump)	Chassis ground	-	∞ (infinite)Ω
	O2 sensor (UP) connector	4 (Current Adjust)	Chassis ground	-	∞ (infinite)Ω
	O2 sensor (UP) connector	1 (Virtual Ground)	ECM connector	43 (Virtual Ground)	Approx. below 1Ω
	O2 sensor (UP) connector	2 (Nernst Voltage)	ECM connector	58 (Nernst Voltage)	Approx. below 1Ω
	O2 sensor (UP) connector	3 (Current Pump)	ECM connector	59 (Current Pump)	Approx. below 1Ω
	O2 sensor (UP) connector	4 (Current Adjust)	ECM connector	44 (Current Adjust)	Approx. below 1Ω
Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	O2 sensor (up) connector	1 (Virtual Ground)	Chassis ground	-	Approx. 0V
	O2 sensor (up) connector	2 (Nernst Voltage)	Chassis ground	-	Approx. 0V
	O2 sensor (UP) connector	3 (Current Pump)	Chassis ground	-	Approx. 0V
	O2 sensor (UP) connector	4 (Current Adjust)	Chassis ground	-	Approx. 0V

Good

Go to "COMPONENT INSPECTION " procedure.

No Good

Repair open or short in circuit and then go to "Verification Of Repair " procedure.