Subaru 2009 IMPREZA Service Manual page 1239

ENGINE (DIAGNOSTICS)
Contents
Back-up power supply
Control module power supply
Sensor power supply
#1
#2
Ignition control
#3
#4
#1
#2
Fuel injector
#3
#4
Signal 1
Fuel pump
control unit
Signal 2
A/C relay control
Radiator fan relay 1 control
Radiator fan relay 2 control
Malfunction indicator light
Engine speed output
Purge control solenoid valve 1
Purge control solenoid valve 2
Signal
Manifold absolute Power supply
pressure sensor
Ground
(sensor)
Power steering oil pressure switch
Front oxygen (A/F) sensor signal
(+)
Front oxygen (A/F) sensor signal
(–)
Front oxygen (A/F) sensor shield
SSM/GST communication line
Intake camshaft position sensor
(LH)
Intake camshaft position sensor
(RH)
Intake camshaft position sensor
ground
Engine Control Module (ECM) I/O Signal
Connector Terminal
No. No.
B135 5
B134 7
B135 2
B134 19
B137 18
B137 19
B137 20
B137 21
B137 8
B137 9
B137 10
B137 11
B135 33
B136 12
B136 9
B136 18
B136 29
B136 11
B136 22
B137 29
B136 7
B134 6
B134 19
B134 29
B134 33
B135 9
B135 8
B135 1
B136 16
B134 21
B134 11
B134 22
EN(H4DOTC)(diag)-18
Signal (V)
Ignition SW ON Engine ON
(engine OFF)
10 — 13
10 — 13
10 — 13
5
0
0
0
0
10 — 13
10 — 13
10 — 13
10 — 13
10 — 13
0 or 5
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
ON: 0.5 or less ON: 0.5 or less
OFF: 10 — 13 OFF: 12 — 14
—
— 0 — 13 or more
ON: 1 or less ON: 1 or less
OFF: 10 — 13 OFF: 12 — 14
ON: 1 or less ON: 1 or less
OFF: 10 — 13 OFF: 12 — 14
1.7 — 2.4 1.1 — 1.6
5
0
10 — 13
OFF: 12 — 14
2.8 — 3.2 2.8 — 3.2
2.4 — 2.7 2.4 — 2.7
0
1 or less 4 or 1 or less
more
0 or 5
0 or 5
0
Note
(idling)
Ignition switch "OFF":
12 — 14
10 — 13
12 — 14 —
12 — 14 —
5 —
12 — 14 Waveform
12 — 14 Waveform
12 — 14 Waveform
12 — 14 Waveform
1 — 14 Waveform
1 — 14 Waveform
1 — 14 Waveform
1 — 14 Waveform
12 — 14 —
0 or 5 Waveform
—
—
Model with A/C only
Light "ON": 1 or less
—
Light "OFF": 10 — 14
Waveform
Waveform
Waveform
5
—
0
ON: 0
—
—
—
0 —
4 or
—
more
0 or 5 Waveform
0 or 5 Waveform
0 —