Circuit Inspection

G15725647

Courtesy of KIA MOTORS AMERICA, INC.

G15725648

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".	Knock sensor #1 connector	2 (signal)	Chassis ground	-	0V
	Knock sensor #1 connector	1 (ground)	Chassis ground	-	0V
Ignition "OFF". Disconnect battery (-) cable. Disconnect the electrical connector(s) from the concerned component and ECM.	Knock sensor #1 connector	2 (signal)	ECM connector	97 (signal)	Approx. below 1Ω
	Knock sensor #1 connector	1 (ground)	ECM connector	76 (ground)	Approx. below 1Ω
	Knock sensor #1 connector	2 (signal)	Knock sensor #1 connector	1 (ground)	∞ (infinity)Ω

Good

Go to "COMPONENT INSPECTION " procedure.

No Good

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