Subaru Legacy 2002 Service Manual page 833

ENGINE CONTROL MODULE (ECM) I/O SIGNAL
Engine (Diagnostics)
Content
Signal 1
Idle air con-
Signal 2
trol solenoid
Signal 3
valve
Signal 4
Torque control signal 1
Torque control signal 2
Fuel pump relay control
A/C relay control
Radiator fan relay 1 con-
trol
Radiator fan relay 2 con-
trol
Self-shutoff control
Malfunction indicator
lamp
Engine speed output
Signal
Knock sen-
sor
Shield
Signal
Pressure Power
sensor supply
GND
Purge control solenoid
valve
GND (sensors)
GND (injectors)
GND (ignition system)
GND (power supply)
GND (control systems)
Select monitor signal
Power steering switch
Torque control cut signal
AT load signal
MT/AT identification
*: With immobilizer
Connec-
Terminal No.
tor No.
ON (Engine OFF)
B134 5
B134 6
B134 19
B134 20
B135 16
B135 17
B134 29* 16
B134 17
B134 3
B134 12
B135 19
B134 11
B134 30
B136 4
B136 25
5
B136 15
16
B134 2
B136 16
B134 7
B134 27
B134 8
B136 21
B136 22
11
B135
12
B135 13
B134 31
B136 11
B135 25
EN(w/oOBD)-22
Signal (V)
Ignition SW
Engine ON (Idling)
— 1 — 13
— 1 — 13
— 1 — 13
— 1 — 13
5 5
5 5
ON: 0
0
OFF: 10 — 13
ON: 0 ON: 0
OFF: 10 — 13 OFF: 13 — 14
ON: 0 ON: 0
OFF: 10 — 13 OFF: 13 — 14
ON: 0 ON: 0
OFF: 10 — 13 OFF: 13 — 14
10 — 13 13 — 14
— —
— 0 — 13, min.
2.8 2.8
0 0
3.4 — 3.6 1.2 — 1.8
5 5
0 0
ON: 0 ON: 0
OFF: 10 — 13 OFF: 13 — 14
0 0
0 0
0 0
0 0
0 0
0 0
— —
— —
ON: 0 ON: 0
OFF: 10 — 13 OFF: 10 — 13
8 8
0 — 0.3 0.8 — 1.2
MT: 0 MT: 0
AT: 5 AT: 5
Note
Waveform
Waveform
Waveform
Waveform
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Light "ON": 1, max.
Light "OFF": 10 — 14
Waveform
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