Subaru LEGACY 2006 Manual page 401

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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 8
27 26 25 24 23 22 21 20 19 18
34 33 32 31 30 29 28
Description
Signal (+)
Crankshaft
position sen- Signal (–)
sor
Shield
Signal (+)
Camshaft
position sen- Signal (–)
sor
Shield
Main
Sub
Electronic
throttle control
Power
supply
GND
(sensor)
Electronic throttle control
motor (+)
Electronic throttle control
motor (–)
Electronic throttle control
motor power supply
Electronic throttle control
motor relay
Engine Control Module (ECM) I/O Signal
To B135
7 6 5 4 3 2 1
19 18 17 16 15 14 13 12 11 10 9 8
27 26 25 24 23 22 21 20
35 34 33 32 31 30 29 28
Connector Terminal
Ignition SW ON
No. No.
(engine OFF)
B134 13
B134 14
B134 24
B134 12
B134 22
B134 24
0.64 — 0.72
B134 18
Fully open: 3.96
1.51 — 1.58
B134 28
Fully open: 4.17
B134 19
B134 29
B137 5 Duty waveform
B137 4 Duty waveform
B136 1 10 — 13
ON: 0
B136 21
OFF: 10 — 13
EN(H4SO)(diag)-17
To B136
6 5 4 3 2 1
16 15 14 13 12 11 10 9 8 7
27 26 25 24 23 22 21 20 19 18 17
35 34 33 32 31 30 29 28
Signal (V)
Engine ON
(idling)
0 –7 — +7
0 0
0 0
0 –7 — +7
0 0
0 0
0.64 — 0.72
(After engine is
warmed-up.)
1.51 — 1.58
(After engine is
warmed-up.)
5 5
0 0
Duty waveform
Duty waveform
12 — 14
ON: 0
OFF: 12 — 14
ENGINE (DIAGNOSTICS)
To B137
7 6 5 4 3 2 1
17 16 15 14 13 12 11 10 9 8
25 24 23 22 21 20 19 18
31 30 29 28 27 26
EN-01812
Note
Waveform
—
—
Waveform
—
—
Fully closed: 0.6
Fully opened: 3.96
Fully closed: 1.48
Fully open: 4.17
—
—
Drive frequency: 500 Hz
Drive frequency: 500 Hz
—
When ignition switch is
turned to ON: ON