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 |
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to correctly follow the removal and installation procedures for the front
passenger airbag assembly.
PROCEDURE
1. INSPECT FRONT PASSENGER AIRBAG ASSEMBLY (Vehicle not Involved in Collision)
...
Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power
Window Switch LH
DESCRIPTION
If the manual up/down function can be performed but the auto up/down function
cannot, the fail-safe mode may be functioning.
If the power window initialization (See page
) has not been performed, the auto up/down function
will not operate.
...