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.

Courtesy of KIA MOTORS AMERICA, INC.

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	R-MDPS connector	2 (Memory power)	Chassis ground	-	B+
	C-MDPS connector	1 (Memory power)	Chassis ground	-	B+
	R-MDPS connector	3 (ON/START Input)	Chassis ground	-	B+
	C-MDPS connector	1 (ON/START Input)	Chassis ground	-	B+
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component.	R-MDPS connector	1 (ground)	Chassis ground	-	Approx. below 1Ω
	C-MDPS connector	2 (ground)	Chassis ground	-	Approx. below 1Ω
Connect the electrical connector(s) from the concerned component. Ignition "ON".	ICU connector	20 (C-CAN high)	Chassis ground	-	Fig.1
	ICU connector	19 (C-CAN low)	Chassis ground	-	Fig.1
Connect the electrical connector(s) from the concerned component. Ignition "ON".	ICU connector	31 (E-CAN high)	Chassis ground	-	Fig.2
	ICU connector	32 (E-CAN low)	Chassis ground	-	Fig.2

Courtesy of KIA MOTORS AMERICA, INC.

Courtesy of KIA MOTORS AMERICA, INC.

Good

Go to "CAN Communication Line Inspection" procedure.

No Good

Repair open or short in circuit and then Go to "Verification Of Repair " procedure.

CAN Communication Line Inspection
Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Ignition "OFF" and disconnect the battery. Disconnect the electrical connector(s) from the concerned component.	RR_C_RDR (RH) connector	3 (E-CAN high)	RR_C_RDR (RH) connector	2 (E-CAN low)	Approx. 60Ω
	ICU (component side)	31 (E-CAN high)	ICU (component side)	32 (E-CAN low)	Approx. 120Ω
	RR_C_RDR (RH) connector	3 (E-CAN high)	ICU connector	31 (E-CAN high)	Approx. below 1Ω
	RR_C_RDR (RH) connector	2 (E-CAN low)	ICU connector	32 (E-CAN low)	Approx. below 1Ω
	ICU connector	20 (C-CAN high)	R-MDPS connector	4 (C-CAN high)	Approx. below 1Ω
	ICU connector	19 (C-CAN low)	R-MDPS connector	5 (C-CAN low)	Approx. below 1Ω
	ICU connector	20 (C-CAN high)	C-MDPS connector	7 (C-CAN high)	Approx. below 1Ω
	ICU connector	19 (C-CAN low)	C-MDPS connector	8 (C-CAN low)	Approx. below 1Ω

Good

Carefully re-do this troubleshooting guide steps.
If no problems were found with the circuits or connectors and DTC still occurs, replace the MDPS and Go to "Verification Of Repair " procedure.

No Good

Repair open or short in circuit and then Go to "Verification Of Repair " procedure.