Subaru IMPREZA 2004 Service Manual page 330

ENGINE (DIAGNOSTICS)
Content
A/C switch
Ignition switch
MT
Neutral
position
switch
AT
Test mode connector
Signal
Knock
sensor
Shield
Back-up power supply
Control unit power sup-
ply
Sensor power supply
#1, #2
Ignition
control
#3, #4
#1
#2
Fuel injec-
tor
#3
#4
Signal 1
Signal 2
Idle air
control Signal 3
solenoid
Signal 4
valve
Power
supply
Fuel pump relay control
A/C relay control
Radiator fan relay 1
control
Radiator fan relay 2
control
Self-shutoff control
Malfunction indicator
light
Engine speed output
Torque control 1 signal
Torque control 2 signal
Torque control cut sig-
nal
Purge control solenoid
valve
Fuel level sensor
Signal 1
Signal 2
EGR sole-
noid valve
Signal 3
Signal 4
AT diagnosis input sig-
nal
Engine Control Module (ECM) I/O Signal
Connector Terminal
No. No.
B136 11
B136 10
B136 21
B136 21
B136 3
B135 16
B135 27
B135 9
B135 1
B135 2
B135 3
B134 33
B134 32
B134 34
B134 23
B134 22
B134 8
B134 20
B134 6
B134 5
B134 19
B135 2
B134 2
B134 9
B134 14
B134 13
B136 12
B134 28
B134 10
B136 1
B136 18
B136 15
B134 29
B135 25
B134 18
B134 17
B134 16
B134 15
B137 19
EN(H4SO)(diag)-24
Signal (V)
Ignition SW ON
Engine ON (Idling)
(Engine OFF)
ON: 10 — 13 ON: 12 — 14
OFF: 0 OFF: 0
10 — 13 12 — 14
ON: 12±0.5
OFF: 0
ON: 0
OFF: 12±0.5
5
2.8
0
10 — 13 12 — 14
10 — 13 12 — 14
10 — 13 12 — 14
5
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 — 14
— 1 — 14
— 1 — 14
— 1 — 14
10 — 13 12 — 14
ON: 0.5, or less
0.5, or less
OFF: 10 — 13
ON: 0.5, or less ON: 0.5, or less
OFF: 10 — 13 OFF: 13 — 14
ON: 0.5, or less ON: 0.5, or less
OFF: 10 — 13 OFF: 12 — 14
ON: 0.5, or less ON: 0.5, or less
OFF: 10 — 13 OFF: 12 — 14
10 — 13 12 — 14
—
— 0 — 13, or more
5
5
8
ON: 1, or less ON: 1, or less
OFF: 10 — 13 OFF: 12 — 14
0.12 — 4.75 0.12 — 4.75
0 or 10 — 13 0 or 10 — 13
0 or 10 — 13 0 or 10 — 13
0 or 10 — 13 0 or 10 — 13
0 or 10 — 13 0 or 10 — 13
Less than 1 ←→ Less than 1 ←→
More than 4 More than 4
Note
Switch is ON when gear is in
neutral position.
Switch is ON when shift is in "N"
or "P" position.
5 When connected: 0
2.8
0
Ignition switch "OFF": 10 — 13
5
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Models with A/C
Light "ON": 1, or less
—
Light "OFF": 10 — 14
Waveform
5
5
8
Waveform
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