Terminals Of Ecu

CHECK OCCUPANT CLASSIFICATION ECU

Fig 1: Identifying Occupant Classification ECU Connector Terminals

ECU TERMINALS REFERENCE

Terminal No. (Symbols)	Wiring Color	Terminal Description	Condition	Specified Condition
X5-5 (GND) - Body ground	W-B - Body ground	Occupant classification ECU ground line	Always	Below 1 Ω
X5-6 (PS) - X5-15 (GPS)	LG-L	Pressure sensor signal line	Ignition switch ON	0 to 5 V
X5-7 (VPS) - X5-5 (GND)	GR - W-B	Pressure sensor +B line	Ignition switch ON	4.75 to 5.25 V
X5-8 (GBT) - X5-5 (GND)	BR - W-B	Belt tension sensor ground line	Always	Below 1 V
X5-9 (IG) - X5-5 (GND)	B - W-B	Occupant classification ECU +B line	Ignition switch ON	10 to 14 V
X5-10 (DIA) - X5-5 (GND)	W - W-B	Diagnosis (DLC3)	Ignition switch ON	Pulse generation
X5-11 (FSR+) - X5-12 (FSR-)	G - R-B	Center airbag sensor communication line	Ignition switch ON	Pulse generation
X5-12 (FSR-)-X5-5 (GND)	G-B - W-B	Center airbag sensor communication line (-)	Always	Below 1 Ω
X5-13 (BSW) - X5-14 (BGND)	R-B	Passenger side buckle switch line	Ignition switch ON	Low: 4 to 7 mA Hi: 12 to 18 mA
X5-14 (BGND) - X5-5 (GND)	B - W-B	Passenger side buckle switch ground line	Always	Below 1 Ω
X5-15 (GPS) - X5-5 (GND)	L - W-B	Pressure sensor ground line	Always	Below 1 Ω
X5-16 (BT) - X5-5 (GND)	P - W-B	Belt tension sensor signal line	Ignition switch ON	0 to 5 V
X5-17 (VBT) - X5-5 (GND)	L-Y - W-B	Belt tension sensor +B line	Ignition switch ON	4.75 to 5.25 V