Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

1. OCCUPANT CLASSIFICATION ECU (for Power Seat)


Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specification

S12-1 (+B) - S12-3 (GND)

GR - W-B

Battery

Always

10 to 14 V

S12-2 (DIA) - S12-3 (GND)

SB - W-B

Diagnosis (DLC3)

Ignition switch ON

Pulse generation

S12-3 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

S12-4 (FSR-) - S12-3 (GND)

B - W-B

Center airbag sensor assembly communication line (-)

Always

Below 1 V

S12-5 (BGND) - S12-3 (GND)

GR - W-B

Passenger side buckle switch ground line

Always

Below 1 V

S12-7 (IG) - S12-3 (GND)

V - W-B

Power source (ECU-B fuse)

Ignition switch ON

10 to 14 V

S12-8 (FSR+) - S12-4 (FSR-)

W - B

Center airbag sensor assembly communication line

Ignition switch ON

Pulse generation

S12-9 (BSW) - S12-5 (BGND)

L - GR

Passenger side buckle switch line

Always

4 to 14 V

S13-1 (SGD1) - S12-3 (GND)

R - W-B

Front occupant classification sensor LH ground line

Always

Below 1 V

S13-2 (SGD2) - S12-3 (GND)

Y - W-B

Front occupant classification sensor RH ground line

Always

Below 1 V

S13-3 (SGD3) - S12-3 (GND)

BR - W-B

Rear occupant classification sensor LH ground line

Always

Below 1 V

S13-4 (SGD4) - S12-3 (GND)

LG - W-B

Rear occupant classification sensor RH ground line

Always

Below 1 V

S13-5 (SVC3) - S13-3 (SGD3)

G - BR

Rear occupant classification sensor LH power supply line

Ignition switch ON, a load applied to rear occupant classification sensor LH

4.9 to 5.1 V

S13-6 (SVC4) - S13-4 (SGD4)

GR - LG

Rear occupant classification sensor RH power supply line

Ignition switch ON, a load applied to rear occupant classification sensor RH

4.9 to 5.1 V

S13-7 (SIG1) - S13-1 (SGD1)

P - R

Front occupant classification sensor LH signal line

Ignition switch ON, a load applied to front occupant classification sensor LH

0 to 5.1 V

S13-8 (SIG2) - S13-2 (SGD2)

GR - Y

Front occupant classification sensor RH signal line

Ignition switch ON, a load applied to front occupant classification sensor RH

0 to 5.1 V

S13-9 (SIG3) - S13-3 (SGD3)

L - BR

Rear occupant classification sensor LH signal line

Ignition switch ON, a load applied to rear occupant classification sensor LH

0 to 5.1 V

S13-10 (SIG4) - S13-4 (SGD4)

SB - LG

Rear occupant classification sensor RH signal line

Ignition switch ON, a load applied to rear occupant classification sensor RH

0 to 5.1 V

S13-11 (SVC1) - S13-1 (SGD1)

Y - R

Front occupant classification sensor LH power supply line

Ignition switch ON, a load applied to front occupant classification sensor LH

4.9 to 5.1 V

S13-12 (SVC2) - S13-2 (SGD2)

V - Y

Front occupant classification sensor RH power supply line

Ignition switch ON, a load applied to front occupant classification sensor RH

4.9 to 5.1 V

2. OCCUPANT CLASSIFICATION ECU (for Manual Seat)


Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specification

M14-1 (+B) - M14-3 (GND)

G - W-B

Battery

Always

10 to 14 V

M14-2 (DIA) - M14-3 (GND)

SB - W-B

Diagnosis (DLC3)

Ignition switch ON

Pulse generation

M14-3 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

M14-4 (FSR-) - M14-3 (GND)

B - W-B

Center airbag sensor assembly communication line (-)

Always

Below 1 V

M14-5 (BGND) - M14-3 (GND)

Y - W-B

Passenger side buckle switch ground line

Always

Below 1 V

M14-7 (IG) - M14-3 (GND)

V - W-B

Power source (ECU-B fuse)

Ignition switch ON

10 to 14 V

M14-8 (FSR+) - M14-4 (FSR-)

W - B

Center airbag sensor assembly communication line

Ignition switch ON

Pulse generation

M14-9 (BSW) - M14-5 (BGND)

G - Y

Passenger side buckle switch line

Always

4 to 14 V

S13-1 (SGD1) - M14-3 (GND)

Y - W-B

Front occupant classification sensor LH ground line

Always

Below 1 V

S13-2 (SGD2) - M14-3 (GND)

SB - W-B

Front occupant classification sensor RH ground line

Always

Below 1 V

S13-3 (SGD3) - M14-3 (GND)

L - W-B

Rear occupant classification sensor LH ground line

Always

Below 1 V

S13-4 (SGD4) - M14-3 (GND)

W - W-B

Rear occupant classification sensor RH ground line

Always

Below 1 V

S13-5 (SVC3) - S13-3 (SGD3)

R - L

Rear occupant classification sensor LH power supply line

Ignition switch ON, a load applied to rear occupant classification sensor LH

4.9 to 5.1 V

S13-6 (SVC4) - S13-4 (SGD4)

B - W

Rear occupant classification sensor RH power supply line

Ignition switch ON, a load applied to rear occupant classification sensor RH

4.9 to 5.1 V

S13-7 (SIG1) - S13-1 (SGD1)

BE - Y

Front occupant classification sensor LH signal line

Ignition switch ON, a load applied to front occupant classification sensor LH

0 to 5.1 V

S13-8 (SIG2) - S13-2 (SGD2)

GR - SB

Front occupant classification sensor RH signal line

Ignition switch ON, a load applied to front occupant classification sensor RH

0 to 5.1 V

S13-9 (SIG3) - S13-3 (SGD3)

G - L

Rear occupant classification sensor LH signal line

Ignition switch ON, a load applied to rear occupant classification sensor LH

0 to 5.1 V

S13-10 (SIG4) - S13-4 (SGD4)

V - W

Rear occupant classification sensor RH signal line

Ignition switch ON, a load applied to rear occupant classification sensor RH

0 to 5.1 V

S13-11 (SVC1) - S13-1 (SGD1)

P - Y

Front occupant classification sensor LH power supply line

Ignition switch ON, a load applied to front occupant classification sensor LH

4.9 to 5.1 V

S13-12 (SVC2) - S13-2 (SGD2)

BR - SB

Front occupant classification sensor RH power supply line

Ignition switch ON, a load applied to front occupant classification sensor RH

4.9 to 5.1 V

Problem Symptoms Table
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