Toyota 4Runner: Terminals Of Ecu
TERMINALS OF ECU
1. CHECK OCCUPANT CLASSIFICATION ECU
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
a9-1 (+B) - a9-3 (GND) |
W - W-B |
Battery power supply |
Always |
11 to 14 V |
|
a9-2 (DIA) - a9-3 (GND) |
GR - W-B |
Diagnosis (DLC3) |
Ignition switch ON |
Pulse generation |
|
a9-3 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
|
a9-4 (FSR-) - a9-3 (GND) |
LG - W-B |
Center airbag sensor assembly communication line |
Always |
Below 1 V |
|
a9-5 (BGND) - a9-3 (GND) |
P - W-B |
Front passenger side buckle switch ground line |
Always |
Below 1 V |
|
a9-7 (IG2) - a9-3 (GND) |
B - W-B |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
|
a9-8 (FSR+) - a9-4 (FSR- ) |
L - LG |
Center airbag sensor assembly communication line |
Ignition switch ON |
Pulse generation |
|
a9-9 (BSW) - a9-5 (BGND) |
G - P |
Front passenger side buckle switch line |
Always |
Pulse generation |
|
a10-1 (SGD1) - a9-3 (GND) |
G - W-B |
Front occupant classification sensor LH ground line |
Always |
Below 1 V |
|
a10-2 (SGD2) - a9-3 (GND) |
LG - W-B |
Front occupant classification sensor RH ground line |
Always |
Below 1 V |
|
a10-3 (SGD3) - a9-3 (GND) |
W - W-B |
Rear occupant classification sensor LH ground line |
Always |
Below 1 V |
|
a10-4 (SGD4) - a9-3 (GND) |
BR - W-B |
Rear occupant classification sensor RH ground line |
Always |
Below 1 V |
|
a10-11 (SVC1) - a10-1 (SGD1) |
R - G |
Front occupant classification sensor LH power supply line |
Ignition switch ON, load applied to front occupant classification sensor LH |
4.9 to 5.1 V |
|
a10-12 (SVC2) - a10-2 (SGD2) |
W - LG |
Front occupant classification sensor RH power supply line |
Ignition switch ON, load applied to front occupant classification sensor RH |
4.9 to 5.1 V |
|
a10-5 (SVC3) - a10-3 (SGD3) |
GR - W |
Rear occupant classification sensor LH signal line |
Ignition switch ON, load applied to rear occupant classification sensor LH |
4.9 to 5.1 V |
|
a10-6 (SVC4) - a10-4 (SGD4) |
V - BR |
Rear occupant classification sensor RH signal line |
Ignition switch ON, load applied to rear occupant classification sensor RH |
4.9 to 5.1 V |
|
a10-7 (SIG1) - a10-1 (SGD1) |
P - G |
Front occupant classification sensor LH signal line |
Ignition switch ON, load applied to front occupant classification sensor LH |
0 to 5.1 V |
|
a10-8 (SIG2) - a10-2 (SGD2) |
L - LG |
Front occupant classification sensor RH signal line |
Ignition switch ON, load applied to front occupant classification sensor RH |
0 to 5.1 V |
|
a10-9 (SIG3) - a10-3 (SGD3) |
SB - W |
Rear occupant classification sensor LH power supply line |
Ignition switch ON, load applied to rear occupant classification sensor LH |
0 to 5.1 V |
|
a10-10 (SIG4) - a10-4 (SGD4) |
B - BR |
Rear occupant classification sensor RH power supply line |
Ignition switch ON, load applied to rear occupant classification sensor RH |
0 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 ...
Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether ...
Other materials about Toyota 4Runner:
Installation
INSTALLATION
PROCEDURE
1. INSTALL REAR DIFFERENTIAL CARRIER ASSEMBLY
(a) Install a new gasket and the differential carrier assembly with the 10 nuts
and 10 washers.
Torque:
52 N·m {530 kgf·cm, 38 ft·lbf}
2. INSTALL REAR AXLE SHAFT LH
(a) Install t ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
When installing the window frame moulding, black out tape and outside
stripe, heat the vehicle body ...
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