Circuit Inspection: Notes

Fig 1: IBAU System Circuit

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Fig 2: IBAU Connector Terminals

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INSPECTION PART - IGPM AND IBAU INSPECTION

Inspection Condition	(+) Probe		(-) Probe		Specification
Inspection Condition	Connector	Terminal	Connector	Terminal	Specification
Disconnect the electrical connector(s) from the concerned component. Ignition "ON".	IBAU Connector	1 (power)	Chassis ground	-	B+
		30 (power)		-	B+
		5 (ON/START input)		-	B+
		14 (ground)		-	Below 1Ω
		46 (ground)		-	Below 1Ω
Ignition "ON".	IGPM Connector	4 (C-CAN High)	IGPM Connector	3 (C-CAN Low)	Fig 3

Fig 3: Screen Display - Normal C-CAN Signal Waveform

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Good	Go to "C-CAN INSPECTION " procedure.
No Good	Repair as necessary and then go to "VERIFICATION OF REPAIR " procedure.