Subaru 2002 IMPREZA Service Manual page 457

ENGINE CONTROL MODULE (ECM) I/O SIGNAL
Content nector
Starter switch B135
A/C switch B135
Ignition switch B135
MT B135
Neutral
position
switch
AT B135
Test mode connector B135
Signal B136
Knock
sensor
Shield B136
Back-up power supply B136
B136
Control unit power sup-
ply
B136
Sensor power supply B136
Line end check 1 B135
#1, #2 B134
Ignition
control
#3, #4 B134
#1 B134
#2 B134
Fuel injec-
tor
#3 B134
#4 B134
Signal 1 B134
Signal 2 B134
Idle air
control Signal 3 B134
solenoid
Signal 4 B134
valve
Power
B136
supply
Fuel pump relay control B134
A/C relay control B134
Radiator fan relay 1
B134
control
Radiator fan relay 2
B134
control
Malfunction indicator
B134
lamp
Engine speed output B134
Torque control 1 signal B135
Torque control 2 signal B135
Torque control cut sig-
B134
nal
Purge control solenoid
B134
valve
Signal B136
Atmo-
Power
spheric B136
supply
pressure
GND (sen-
sensor
B136
sor)
*: With immobilizer
Con-
Terminal
Ignition SW ON
No.
No.
(Engine OFF)
28
ON: 10 — 13
27
7
26
26
14
4
25
9
1
2
15
20
25
26
4
13
14
15
5
6
19
20
2
ON: 0.5, or less
29* 16
OFF: 10 — 13
ON: 0.5, or less
17
OFF: 10 — 13
ON: 0.5, or less
3
OFF: 10 — 13
ON: 0.5, or less
12
OFF: 10 — 13
11
30
16
17
31
ON: 1, or less
2
OFF: 10 — 13
29
15
16
Signal (V)
Engine ON (Idling)
0
ON: 13 — 14
OFF: 0 OFF: 0
10 — 13 13 — 14
ON: 12±0.5
OFF: 0
ON: 0
OFF: 12±0.5
5
2.8 2.8
0
10 — 13 13 — 14
10 — 13 13 — 14
10 — 13 13 — 14
5
0
0 1 — 3.4
0 1 — 3.4
10 — 13 1 — 14
10 — 13 1 — 14
10 — 13 1 — 14
10 — 13 1 — 14
— 1 — 13
— 1 — 13
— 1 — 13
— 1 — 13
10 — 13 13 — 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
—
— 0 — 13, or more
5 More than 4 V
5 More than 4 V
8
ON: 1, or less
OFF: 13 — 14
3.9 — 4.1 2.0 — 2.3
5
0
EN-25
ENGINE (DIAGNOSTICS)
0 Cranking: 8 — 14
On MT vehicle; Switch is ON
when gear is in neutral position.
ON AT vehicle; Switch is ON
when shift is in "N" or "P" posi-
tion.
5 When connected: 0
0
Ignition switch "OFF": 10 — 13
5
0
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
8
5
0
Note
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