Circuit Inspection

WARNING: This page is about a different car, the 2021 Kia Seltos. 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.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	ICU connector	15, 17, 26, 54 (Memory power)	Chassis ground	-	B+
	ICU connector	13, 14 (ground)	Chassis ground	-	Approx. below 1Ω
Ignition "ON".	ICU connector	11 (C-CAN high)	Chassis ground	-	Fig.1
Ignition "ON".	ICU connector	10 (C-CAN low)	Chassis ground	-	Fig.1
Ignition "OFF" and disconnect the battery (-) terminal. Disconnect the electrical connector(s) from the concerned component.	MDPS unit connector	7 (C-CAN high)	ICU connector	11 (C-CAN high)	Approx. below 1Ω
	MDPS unit connector	8 (C-CAN low)	ICU connector	10 (C-CAN low)	Approx. below 1Ω

Courtesy of KIA MOTORS AMERICA, INC.

Good

Go to "C-CAN Inspection" procedure below.

No Good

Repair open or short in circuit 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.	ICU (component side)	11 (C-CAN high)	ICU (component side)	10 (C-CAN low)	Approx. 120Ω
	CLU (component side)	32 (C-CAN high)	CLU (component side)	33 (C-CAN low)	Approx. 120Ω

Good

Carefully re-do this troubleshooting guide steps.
If no problems were found with the circuits or connectors, replace ICU and then go to "VERIFICATION OF REPAIR " procedure.

No Good

Carefully re-do this troubleshooting guide steps.
Repair or replace as necessary and then go to "VERIFICATION OF REPAIR " procedure.