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
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 ...
Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page ).
2. FUNCTION OF PASSENGER AIRBAG ON/OFF INDICATOR
(a) Initial check.
(1) Turn the ignition switch to ON.
(2) The passenger airbag O ...
Other materials about Toyota Venza:
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT SUSPENSION MEMBER BODY MOUNTING REAR CUSHION LH
(a) Temporarily install a new front suspension member body mounting rear
cushion LH while confirming the installation direction.
NOTICE:
Position th ...
Problem Symptoms Table
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 listed in order
of probability in the "Suspected Area" column of ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS
...
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