Subaru Legacy 2002 Service Manual page 1235

ENGINE CONTROL MODULE (ECM) I/O SIGNAL
Engine (DIAGNOSTICS)
Content
Engine
Signal
coolant tem-
perature
GND (sensor)
sensor
Generator signal
Starter switch
A/C switch
Ignition switch
Neutral position switch
Test mode connector
1
Signal
Knock sen-
2
sor
Shield
Back-up power supply
Control unit power supply
Sensor power supply
Line end check 1
#1
#2
#3
Ignition con-
trol
#4
#5
#6
#1
#2
#3
Fuel injector
#4
#5
#6
Idle air con-
trol solenoid Signal
valve
Fuel pump relay control
A/C relay control
Radiator fan relay 1 control
Radiator fan relay 2 control
Radiator fan relay 3 control
Self-shutoff control
Malfunction indicator lamp
Engine speed output
Torque control 1 signal
Con-
Termi-
nector
Ignition SW ON
nal No.
No.
(Engine OFF)
B135 18
7
B134
15
B137 12 4 — 5
B134 16
ON: 10 — 13
B134 6
OFF: 0
B134 14 10 — 13
B134 8
B134 5
4
B135
13
B135 22
B137 10 10 — 13
2 10 — 13
B137
3 10 — 13
B135 9
B134 10
B136 24
B136 23
B136 22
B136 21
B136 20
B136 19
B137 1 10 — 13
B136 6 10 — 13
B136 5 10 — 13
B136 4 10 — 13
B136 3 10 — 13
B136 1 10 — 13
B136 10 10 — 13
ON: 0.5, or less
B136 15
OFF: 10 — 13
ON: 0.5, or less
B137 27
OFF: 10 — 13
ON: 0.5, or less
B137 17
OFF: 10 — 13
ON: 0.5, or less
B137 28
OFF: 10 — 13
ON: 0.5, or less
B137 24
OFF: 10 — 13
B134 2 10 — 13
B137 15
B136 9
B134 19
EN(H6)-28
Signal (V)
Engine ON (Idling)
— —
0 0
4 — 5
0 0
ON: 13 — 14
OFF: 0
13 — 14
ON: 0
OFF: 5
5 5
2.5 2.5
2.5 2.5
0 0
13 — 14
13 — 14
13 — 14
5 5
0 0
0 —
0 —
0 —
0 —
0 —
0 —
1 — 14
1 — 14
1 — 14
1 — 14
1 — 14
1 — 14
—
0.5, or less
ON: 0.5, or less
OFF: 13 — 14
ON: 0.5, or less
OFF: 13 — 14
ON: 0.5, or less
OFF: 13 — 14
ON: 0.5, or less
OFF: 13 — 14
13 — 14
— —
— 0 — 13, or more
5 5
Note
After warm-up the
engine.
After warm-up the
engine.
Cranking: 9 — 12
—
—
Switch is ON when
shift is in "N" or "P"
position.
When connected: 0
—
—
—
Ignition switch "OFF":
10 — 13
—
—
—
—
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
—
—
—
With A/C vehicles only
—
—
Light "ON": 1, or less
Light "OFF": 10 — 14
Waveform
—