Circuit Inspection

G12850917

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	HO2S (B1/S1) connector	1 (Nernst Voltage)	Chassis ground	-	0V
	HO2S (B1/S1) connector	3 (Virtual ground)	Chassis ground	-	0V
	HO2S (B1/S1) connector	6 (Pumping Current)	Chassis ground	-	0V
	HO2S (B1/S1) connector	4 (Trim Resistor)	Chassis ground	-	0V
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	HO2S (B1/S1) connector	1 (Nernst Voltage)	PCM connector	104 (Nernst Voltage)	below 1Ω
	HO2S (B1/S1) connector	3 (Virtual ground)	PCM connector	83 (Virtual ground)	below 1Ω
	HO2S (B1/S1) connector	6 (Pumping Current)	PCM connector	105 (Pumping Current)	below 1Ω
	HO2S (B1/S1) connector	4 (Trim Resistor)	PCM connector	84 (Trim Resistor)	below 1Ω

Good

Go to "COMPONENT INSPECTION " procedure.

No Good

Repair or replace as necessary and then, go to "VERIFICATION OF REPAIR " procedure.