Circuit Inspection

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	HO2S#4 (B2/S2) connector	1 (sensor signal)	Chassis ground	-	Approx. 0V
	HO2S#4 (B2/S2) connector	2 (sensor ground)	Chassis ground	-	Approx. 0V
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	HO2S#4 (B2/S2) connector	1 (sensor signal)	Chassis ground	-	∞ (Infinite)Ω

Good

No Good

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