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Circuit Inspection

G13830396

Courtesy of KIA MOTORS AMERICA, INC.

CAN Communication Line Inspection
Inspection Condition	(+) Probe		(-) Probe		Reference
Inspection Condition	Connector	Terminal	Connector	Terminal	Reference
Ignition "ON".	HECU connector	23 (P-CAN high)	Chassis ground	-	Fig.1
Ignition "ON".	HECU connector	22 (P-CAN low)	Chassis ground	-	Fig.1
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	HECU connector	23 (P-CAN high)	HECU connector	22 (P-CAN low)	Approx. 60Ω
	ICU (component side)	9 (P-CAN high)	ICU (component side)	10 (P-CAN low)	Approx. 120Ω
	ECM (component side)	77 (P-CAN high)	ECM (component side)	60 (P-CAN low)	Approx. 120Ω
	HECU connector	23 (P-CAN high)	ECM connector	77 (P-CAN high)	Approx. below 1Ω
	HECU connector	22 (P-CAN low)	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.	ECM connector	77 (P-CAN high)	Chassis ground	-	∞ (infinity)Ω
	ECM connector	60 (P-CAN low)	Chassis ground	-	∞ (infinity)Ω

G13830397

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".	HECU connector	1, 30, 37 (power)	Chassis ground	-	B+
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	HECU connector	14, 46 (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.