Circuit Inspection

G13473313

Courtesy of KIA MOTORS AMERICA, INC.

G00608966

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 and EPB ECU.	BLS Connector	4 (Memory power)	Chassis ground	-	B+
	BLS Connector	1 (ON/START Input)	Chassis ground	-	B+
Ignition "OFF". Disconnect the electrical connector(s) from the concerned component and EM11, IBAU, EPB..	BLS Connector	4 (ground)	Chassis ground	-	Approx. below 1Ω
	BLS Connector	5 (stop lamp signal)	IBAU Connector	36 (brake light switch)	Approx. below 1Ω
	BLS Connector	2 (stop signal)	IBAU Connector	44 (brake test switch)	Approx. below 1Ω
	IBAU Connector	38 (C-CAN high)	EPB ECU Connector	24 (C-CAN high)	Approx. below 1Ω
	IBAU Connector	39 (C-CAN low)	EPB ECU Connector	23 (C-CAN low)	Approx. below 1Ω
Ignition "OFF". Disconnect the battery (-) terminal. Disconnect the electrical connector(s) of all concerned components to the related CAN system.	IGPM Component side	4 (C-CAN high)	IGPM Component side	3 (C-CAN low)	Approx. 120Ω
	Cluster Component side	33 (C-CAN high)	Cluster Component side	32 (C-CAN low)	Approx. 120Ω
	EPB ECU Connector	24 (C-CAN high)	Chassis ground	-	∞ (infinity)Ω
	EPB ECU Connector	23 (C-CAN low)	Chassis ground	-	∞ (infinity)Ω
	IBAU Connector	38 (C-CAN high)	Chassis ground	-	∞ (infinity)Ω
	IBAU Connector	39 (C-CAN low)	Chassis ground	-	∞ (infinity)Ω
Ignition "ON".	EPB ECU Connector	24 (C-CAN high)	Chassis ground	-	Fig. 1
Ignition "ON".	EPB ECU Connector	23 (C-CAN low)	Chassis ground	-	Fig. 1

G13473314

Courtesy of KIA MOTORS AMERICA, INC.

Good

Carefully re-do this troubleshooting guide steps.
If no problems were found with the circuits or connectors and DTC still occurs, replace the BLS and go to "Component Inspection " procedure.

No Good

Repair open or short in circuit and then go to "VERIFICATION OF REPAIR " procedure.