Circuit Inspection

Fig 1: IBAU System Circuit

G12320458

Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: IBAU Connector Terminals

G12320459

Courtesy of KIA MOTORS AMERICA, INC.

INSPECTION PART - IBAU AND AEB MODULE INSPECTION

Inspection Part: C-CAN 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.	IBAU Connector	38 (C-CAN High)	IBAU Connector	39 (C-CAN Low)	Approx. 60Ω
	AEB Module Connector	8 (C-CAN High)	AEB Module Connector	7 (C-CAN Low)	Approx. 60Ω
	IBAU Connector	38 (C-CAN High)	AEB Module Connector	8 (C-CAN High)	Below 1Ω
	IBAU Connector	39 (C-CAN Low)	AEB Module Connector	7 (C-CAN Low)	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 ASSIST EMERGENCY BRAKING (AEB) SYSTEM and then go to "VERIFICATION OF REPAIR " procedure.