Subaru FORESTER 2001 Service Manual page 29

ENGINE CONTROL MODULE (ECM) I/O SIGNAL
Engine (Diagnostics)
Content
#1
#2
Fuel injec-
tor
#3
#4
Idle air
control
Signal
solenoid
valve
A/C relay control
Radiator fan relay 1
control
Radiator fan relay 2
control
Malfunction indicator
lamp
Engine speed output
Purge control solenoid
valve
Signal
Power sup-
Pressure
ply
sensor
GND (sen-
sor)
Fuel level sensor
Small light switch
Blower fan switch
Rear defogger switch
Power steering oil pres-
sure switch
Front oxygen (A/F) sen-
sor signal (+)
Front oxygen (A/F) sen-
sor signal (−)
Front oxygen (A/F) sen-
sor shield
SSM/GST communica-
tion line
GND (sensors)
GND (injectors)
GND (ignition system)
GND (power supply)
GND (control systems)
GND (oxygen sensor
heater 1)
GND (oxygen sensor
heater 2)
Con-
Termi-
nector
Ignition SW ON
nal No.
No.
(Engine OFF)
B137 1 10 — 13
B136 6 10 — 13
B136 5 10 — 13
B136 4 10 — 13
B136 10 0 or 13 — 14
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
B137 15
B136 9
ON: 1, or less
B137 16
OFF: 10 — 13
B135 8 1.7 — 2.4
B135 9
B135 19
B135 25 0.12 — 4.75
B134 17
OFF: 10 — 13
B134 9
OFF: 10 — 13
B134 3
OFF: 10 — 13
B135 24 10 — 13
B137 19 2.8 — 3.2
B137 29 2.4 — 2.7
B136 7
Less than 1 ←→ More
B134 21
than 4
B135 19
B136 8
B136 18
B136 17
B134 22
B134 7
B134 15
B137 9
B137 8
EN(DOHC TURBO)-28
Signal (V)
Engine ON (Idling)
1 — 14
1 — 14
1 — 14
1 — 14
0 or 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
— —
— 0 — 13, or more
ON: 1, or less
OFF: 13 — 14
1.1 — 1.6
5
0
0.12 — 4.75
ON: 0 ON: 0
OFF: 13 — 14
ON: 0 ON: 0
OFF: 13 — 14
ON: 0 ON: 0
OFF: 13 — 14
ON: 0
OFF: 13 — 14
2.8 — 3.2
2.4 — 2.7
0
Less than 1 ←→ More
than 4
0
0
0
0
0
0
0
0
0
Note
Waveform
Waveform
Waveform
Waveform
Waveform
With A/C vehicles only
Light "ON": 1, or less
Light "OFF": 10 — 14
Waveform
5
0
0
0
0
0
0
0
0
0
0
0
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