Terminals Of Ecu [09/2014 - ]

OCCUPANT DETECTION ECU

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
a14-1 (SVC1) - a14-5 (SGD1)	R - G	Front occupant classification sensor LH power supply	Engine switch on (IG)	4.9 to 5.1 V
a14-2 (SVC3) - a14-6 (SGD3)	GR - W	Rear occupant classification sensor LH power supply	Engine switch on (IG)	4.9 to 5.1 V
a14-3 (SIG1) - a14-5 (SGD1)	P - G	Front occupant classification sensor LH signal	Engine switch on (IG)	Pulse generation
a14-4 (SIG3) - a14-6 (SGD3)	SB - W	Rear occupant classification sensor LH signal	Engine switch on (IG)	Pulse generation
a14-5 (SGD1) - a15-3 (GND)	G - W-B	Front occupant classification sensor LH ground	Always	Below 1 V
a14-6 (SGD3) - a15-3 (GND)	W - W-B	Rear occupant classification sensor LH ground	Always	Below 1 V
a15-1 (+B) - a15-3 (GND)	W - W-B	Battery	Always	11 to 14 V
a15-2 (DIA)	GR	Diagnosis (DLC3)	-*	-*
a15-3 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
a15-4 (FSR-) - a15-3 (GND)	LG - W-B	Airbag ECU assembly communication signal	Always	Below 1 V
a15-5 (BGND) - a15-3 (GND)	P - W-B	Passenger side buckle switch ground	Always	Below 1 V
a15-6 (IG2) - a15-3 (GND)	B - W-B	Power source	Engine switch on (IG)	11 to 14 V
a15-7 (FSR+) - a15-4 (FSR-)	L - LG	Airbag ECU assembly communication signal	Engine switch on (IG)	Pulse generation
a15-8 (BSW) - a15-5 (BGND)	G - P	Passenger side buckle switch signal	Always	Pulse generation

*: As this is a line that is connected to other systems, voltage changes according to the systems that are connected.