Last Modified: 11-29-2007 1.6 U
Service Category: Vehicle Interior Section: Supplemental Restraint Systems
Model Year: 2008 Model: Sequoia Doc ID: RM0000010V4020X
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: TERMINALS OF ECU (2008 Sequoia)

TERMINALS OF ECU

1. CHECK OCCUPANT CLASSIFICATION ECU



Standard

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

W6-1 (+B) - W6-3 (GND)*1

P14-1 (+B) - P14-3 (GND)*2

G - W-B*1

R - W-B*2

Battery

Ignition switch ON

11 to 14 V

W6-2 (DIA) - W6-3 (GND)*1

P14-2 (DIA) - P14-3 (GND)*2

BR - W-B

Diagnosis (DLC3)

Ignition switch ON

Pulse generation

W6-3 (GND) - Body ground*1

P14-3 (GND) - Body ground*2

W-B - Body ground

Ground

Always

Below 1 Ω

W6-4- (FSR-) - W6-3 (GND)*1

P14-4- (FSR-) - P14-3 (GND)*2

B - W-B

Center airbag sensor communication ground line

Always

Below 1 Ω

W6-5 (BGND) - W6-3 (GND)*1

P14-5 (BGND) - P14-3 (GND)*2

O - W-B

Passenger side buckle switch ground line

Always

Below 1 Ω

W6-7 (IG) - W6-3 (GND)*1

P14-7 (IG) - P14-3 (GND)*2

SB - W-B

Power source (IGN fuse)

Ignition switch ON

11 to 14 V

W6-8 (FSR+) - W6-4 (FSR-)*1

P14-8 (FSR+) - P14-4 (FSR-)*2

W - B

Center airbag sensor communication line

Ignition switch ON

Pulse generation

W6-9 (BSW) - W6-5 (BGND)*1

P14-9 (BSW) - P14-5 (BGND)*2

L - O

Passenger side buckle switch line

Buckle switch ON

0.12 to 0.18 A

Buckle switch OFF

0.4 to 0.7 mA

W1-1 (SGD1) - W6-3 (GND)*1

W1-1 (SGD1) - P14-3 (GND)*2

Y - W-B

Front occupant detection sensor LH ground line

Always

Below 1 Ω

W1-2 (SGD2) - W6-3 (GND)*1

W1-2 (SGD2) - P14-3 (GND)*2

SB - W-B

Front occupant detection sensor RH ground line

Always

Below 1 Ω

W1-3 (SGD3) - W6-3 (GND)*1

W1-3 (SGD3) - P14-3 (GND)*2

L - W-B

Rear occupant detection sensor LH ground line

Always

Below 1 Ω

W1-4 (SGD4) - W6-3 (GND)*1

W1-4 (SGD4) - P14-3 (GND)*2

W - W-B

Rear occupant detection sensor RH ground line

Always

Below 1 Ω

W1-11 (SVC1) - W1-1 (SGD1)

P - Y

Front occupant detection sensor LH power supply line

Ignition switch ON, load is applied to front occupant detection sensor LH

4.5 to 5.1 V

W1-12 (SVC2) - W1-2 (SGD2)

BR - SB

Front occupant detection sensor RH power supply line

Ignition switch ON, load is applied to front occupant detection sensor RH

4.5 to 5.1 V

W1-5 (SVC3) - W1-3 (SGD3)

R -L

Rear occupant detection sensor LH power supply line

Ignition switch ON, load is applied to rear occupant detection sensor LH

4.5 to 5.1 V

W1-6 (SVC4) - W1-4 (SGD4)

B - W

Rear occupant detection sensor RH power supply line

Ignition switch ON, load is applied to rear occupant detection sensor RH

4.5 to 5.1 V

W1-7 (SIG1) - W1-1 (SGD1)

O - Y

Front occupant detection sensor LH signal line

Ignition switch ON, load is applied to front occupant detection sensor LH

Pulse generation

W1-8 (SIG2) - W1-2 (SGD2)

GR - SB

Front occupant detection sensor RH signal line

Ignition switch ON, load is applied to front occupant detection sensor RH

Pulse generation

W1-9 (SIG3) - W1-3 (SGD3)

G - L

Rear occupant detection sensor LH signal line

Ignition switch ON, load is applied to rear occupant detection sensor LH

Pulse generation

W1-10 (SIG4) - W1-4 (SGD4)

V - W

Rear occupant detection sensor RH signal line

Ignition switch ON, load is applied to rear occupant detection sensor RH

Pulse generation

HINT:

*1: for Power Seat

*2: for Manual Seat

If the result is not as specified, the ECU may have a malfunction.