Circuit Inspection

WARNING: This page is about a different car, the 2021 Kia Soul. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of KIA MOTORS AMERICA, INC.

Courtesy of KIA MOTORS AMERICA, INC.

Courtesy of KIA MOTORS AMERICA, INC.

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".	MDPS unit connector	1 (power)	Chassis ground	-	B+
		1 (ON/START Input)		-	B+
		2 (ground)		-	Approx. below 1Ω
Ignition "ON".	ICU connector	9 (C-CAN high)	Chassis ground	-	Fig.1
	ICU connector	10 (C-CAN low)	Chassis ground	-	Fig.1
	ICU connector	12 (P-CAN high)	Chassis ground	-	Fig.2
	ICU connector	11 (P-CAN low)	Chassis ground	-	Fig.2

Courtesy of KIA MOTORS AMERICA, INC.

Courtesy of KIA MOTORS AMERICA, INC.

Good

Go to "C-CAN Inspection" procedure.

No Good

Repair as necessary and then go to "Verification of Repair " procedure.

C-CAN Inspection
Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF" and disconnect the battery (-) terminal. Disconnect the electrical connector (s) from the concerned component.	MDPS unit connector	7 (C-CAN high)	MDPS unit connector	8 (C-CAN low)	Approx. 60Ω
	ICU (component side)	9 (C-CAN high)	ICU (component side)	10 (C-CAN low)	Approx. 120Ω
	MDPS unit connector	7 (C-CAN high)	ICU connector	9 (C-CAN high)	Approx. below 1Ω
	MDPS unit connector	8 (C-CAN low)	ICU connector	10 (C-CAN low)	Approx. below 1Ω

Good

Go to "P-CAN Inspection" procedure.

No Good

Repair open or short in circuit and then go to "Verification of Repair " procedure.

P-CAN Inspection
Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF" and disconnect the battery (-) terminal. Disconnect the electrical connector (s) from the concerned component.	ICU (component side)	12 (P-CAN high)	ICU (component side)	11 (P-CAN low)	Approx. 120Ω
	ECM (1.6T-GDI) (component side)	85 (P-CAN high)	ECM (1.6T-GDI) (component side)	63 (P-CAN low)	Approx. 120Ω
	PCM (2.0MPI ATKINSON) (component side)	77 (P-CAN high)	PCM (2.0MPI ATKINSON) (component side)	60 (P-CAN low)	Approx. 120Ω
	ICU connector	12 (P-CAN high)	ECM (1.6T-GDI) (component side)	85 (P-CAN high)	Approx. 120Ω
	ICU connector	12 (P-CAN high)	PCM (2.0MPI ATKINSON) (component side)	77 (P-CAN high)	Approx. below 1Ω
	ICU connector	11 (P-CAN low)	ECM (1.6T-GDI) (component side))	63 (P-CAN high)	Approx. below 1Ω
	ICU connector	11 (P-CAN low)	PCM (2.0MPI ATKINSON) (component side)	60 (P-CAN high)	Approx. below 1Ω

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, and/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 no problems were found with the circuits or connectors, replace ECM/PCM and then go to "Verification of Repair " procedure.