Toyota CH-R Service Manual: Terminals Of Ecu

Toyota CH-R Service Manual / Supplemental Restraint Systems / Occupant Classification System / Terminals Of Ecu

TERMINALS OF ECU

OCCUPANT DETECTION ECU

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
Y5-1 (SVC1) - Y5-5 (SGD1)	R - G	Front in weight detection sensor sub-assembly power supply	Ignition switch ON	11 to 14 V
Y5-2 (SVC3) - Y5-6 (SGD3)	GR - W	Rear in weight detection sensor sub-assembly power supply	Ignition switch ON	11 to 14 V
Y5-3 (SIG1) - Y5-5 (SGD1)	P - G	Front in weight detection sensor sub-assembly signal	Ignition switch ON	Pulse generation
Y5-4 (SIG3) - Y5-6 (SGD3)	SB - W	Rear in weight detection sensor sub-assembly signal	Ignition switch ON	Pulse generation
Y5-5 (SGD1) - Y6-10 (GND)	G - W-B	Front in weight detection sensor sub-assembly ground	Always	Below 1 V
Y5-6 (SGD3) - Y6-10 (GND)	W - W-B	Rear in weight detection sensor sub-assembly ground	Always	Below 1 V
Y6-4 (CANL) - Y6-10 (GND)	SB - W-B	CAN communication line	Ignition switch ON	Pulse generation
Y6-5 (CANH) - Y6-10 (GND)	R - W-B	CAN communication line	Ignition switch ON	Pulse generation
Y6-6 (IG2) - Y6-10 (GND)	B - W-B	Power source	Ignition switch ON	11 to 14 V
Y6-7 (BSW) - Y6-9 (BGND)	G - P	Passenger side buckle switch signal	Always	Pulse generation
Y6-9 (BGND) - Y6-10 (GND)	P - W-B	Passenger side buckle switch ground	Always	Below 1 V
Y6-10 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 V

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PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

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