Circuit Inspection

G14974619

Courtesy of KIA MOTORS AMERICA, INC.

CAN Communication Line Inspection
Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Ignition "ON".	ICU connector	19 (P-CAN high)	Chassis ground	-	Fig.1
Ignition "ON".	ICU connector	20 (P-CAN low)	Chassis ground	-	Fig.1
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	ICU connector	19 (P-CAN high)	ICU connector	20 (P-CAN low)	Approx. 120Ω
	ECM (component side)	77 (P-CAN high)	ECM (component side)	60 (P-CAN low)	Approx. 120Ω
	ICU (component side)	19 (P-CAN high)	ICU (component side)	20 (P-CAN low)	Approx. 120Ω
	ICU connector	19 (P-CAN high)	ECM connector	77 (P-CAN high)	Approx. below 1Ω
	ICU connector	20 (P-CAN high)	ECM connector	60 (P-CAN low)	Approx. below 1Ω
Ignition "OFF". Disconnect the battery (-) terminal. Disconnect the electrical connector(s) of all concerned component to the related CAN system.	ICU connector	19 (P-CAN low)	Chassis ground	-	∞ (infinity)Ω
	ICU connector	20 (P-CAN low)	Chassis ground	-	∞ (infinity)Ω

G14974620

Courtesy of KIA MOTORS AMERICA, INC.

Good

Go to "Module Circuit Inspection" procedure.

No Good

Repair open or short in circuit and then Go to "VERIFICATION OF REPAIR " procedure.

Module Circuit Inspection
Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	ICU connector	1, 1, 2, 3, 4, 21, 38, 48 (power)	Chassis ground	-	B+
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	ICU connector	10, 27 (ground)	Chassis ground	-	Approx. below 1Ω

Good

Go to "COMPONENT INSPECTION " procedure.
Repair as necessary and then Go to "VERIFICATION OF REPAIR " procedure.

No Good

Repair open or short in circuit and then Go to "VERIFICATION OF REPAIR " procedure.