Circuit Inspection

WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF". Disconnect the auxiliary battery (-) terminal. Disconnect the electrical connector(s) from the concerned component.	ECM (component side)	62 (P-CAN high)	ECM (component side)	45 (P-CAN low)	Approx. 120Ω
	ICU (component side)	17 (P-CAN high)	ICU (component side)	18 (P-CAN low)	Approx. 120Ω
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	ECM connector	3, 60 (Memory power)	Chassis ground	-	B+
	ECM connector	26 (ON/START Input)	Chassis ground	-	B+
Ignition "OFF". Disconnect the auxiliary battery (-) terminal. Disconnect the electrical connector(s) from the concerned component.	ECM connector	1, 2, 4 (ground)	Chassis ground	-	Approx. below 1Ω
Ignition "ON". Connect VMI to KDS and launch the oscilloscope.	SCU connector	5 (P-CAN high)	Chassis ground	-	Fig.1
	SCU connector	6 (P-CAN low)	Chassis ground	-	Fig.1

Courtesy of KIA MOTORS AMERICA, INC.

Good

Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, or damage.
Repair or replace as necessary and then Go to "Verification Of Repair " procedure.

No Good

Carefully re-do this troubleshooting guide steps.
If problem still occurs, replace ECM and then Go to "Verification Of Repair " procedure.

If a module is replaced, perform the relevant "Vehicle S/W Management" procedure.