Engine Control Module (Ecm) I/O Signal - Subaru Legacy 2005 Service Manual

5. Engine Control Module (ECM) I/O Signal

A: ELECTRICAL SPECIFICATION
To B134
7 6 5 4 3 2 1
17 16 15 14 13 12 11 10 9
27 26 25 24 23 22 21 20 19
34 33 32 31 30 29
DESCRIPTION
Crankshaft Signal (+)
position sen-
Signal (−)
sor (Model
with immobi-
Shield
lizer)
Crankshaft Signal (+)
position sen-
Signal (−)
sor (Model
without immo-
Shield
bilizer)
Camshaft Signal (+)
position sen-
Signal (−)
sor (Model
with immobi-
Shield
lizer)
Camshaft Signal (+)
position sen-
Signal (−)
sor (Model
without immo-
Shield
bilizer)
Main
Electronic
throttle control
Sub
Electronic throttle control
motor 1 (+)
Electronic throttle control
motor 2 (+)
Electronic throttle control
motor 1 (−)
Engine Control Module (ECM) I/O Signal
To B135
7 6 5 4 3
8 19 18 17 16 15 14 13 12 11
18 27 26 25 24 23
28 35 34 33 32 31
Termi-
Connector
nal
No.
No.
B136 27
B136 24
B136 32
B136 26
B136 24
B136 32
B136 26
B136 25
B136 32
B136 27
B136 25
B136 32
B137 23
B137 24
B137 2
B137 3
B137 4
EN(H4SO 2.0)(diag)-17
To B136
2 1 6 5 4 3
10 9 8 16 15 14 13 12 11 10
22 21 20 27 26 25 24 23 22 21
30 29 28 35 34 33 32 31
Signal (V)
Ignition SW ON
(engine OFF)
0
0
0
0
0
0
0
0
0
0
0
0
0.4 — 1.1
Fully opened: (After engine is
3.7 — 4.3
3.9 — 4.8
Fully opened: (After engine is
0.65 — 1.5
Duty waveform Duty waveform
Duty waveform Duty waveform
Duty waveform Duty waveform
ENGINE (DIAGNOSTICS)
To B137
2 1 7 6 5
9 8 7 17 16 15 14 13
20 19 18 17 25 24 23
30 29 28 31 30 29
Engine ON
(idling)
−7 — +7
Sensor output waveform
0
0
−7 — +7
Sensor output waveform
0
0
−7 — +7
Sensor output waveform
0
0
−7 — +7
Sensor output waveform
0
0
0.3 — 0.9
warmed-up.)
4.05 — 4.95
warmed-up.)
Drive frequency: 1 kHz
Drive frequency: 1 kHz
Drive frequency: 1 kHz
4 3 2 1
12 11 10 9 8
22 21 20 19 18
28 27 26
EN-01812
NOTE
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