Subaru 2009 IMPREZA Service Manual page 436

Contents
Main sensor
signal
Main power
supply
Ground
Accelerator
(Main sensor)
pedal posi-
Sub sensor
tion sensor
signal
Sub power
supply
Ground
(Sub sensor)
Signal
Rear oxygen
sensor
Shield
Front oxygen Signal 1
(A/F) sensor
Signal 2
heater
Rear oxygen sensor heater
signal
Engine coolant temperature
sensor
Starter switch
Starter relay control
A/C switch
Ignition switch
AT
Neutral
position
switch
MT
Delivery (test) mode connector
Signal
Knock sensor
Shield
Back-up power supply
Control module power supply
#1, #2
Ignition
control
#3, #4
#1
#2
Fuel injector
#3
#4
Engine Control Module (ECM) I/O Signal
Connector Terminal
No. No.
B135 23
B135 21
B135 29
B135 31
B135 22
B135 30
B135 4
B135 1
B136 3
B136 2
B136 4
B134 34
B136 32
B136 20
B136 24
B135 19
B136 31
B135 27
B134 15
B134 25
B135 5
B134 7
B135 2
B137 18
B137 19
B137 8
B137 9
B137 10
B137 11
EN(H4SO)(diag)-19
Signal (V)
Ignition SW ON Engine ON
(engine OFF)
Fully closed: 1.0 Fully closed: 1.0
Fully opened: 3.5 Fully opened: 3.5
5
0
Fully closed: 1.0 Fully closed: 1.0
Fully opened: 3.5 Fully opened: 3.5
5
0
0
0
10 — 13
10 — 13
10 — 13
1.0 — 1.4 1.0 — 1.4
0
ON: 0.5 or less ON: 0.5 or less
OFF: 10 — 13 OFF: 12 — 14
ON: 10 — 13 ON: 12 — 14
OFF: 0
10 — 13 12 — 14
ON: 0
OFF: 12 0.5
ON: 0
OFF: 12 0.5
10 — 13 13 — 14
2.5
0
10 — 13 12 — 14
10 — 13 12 — 14
10 — 13 12 — 14
0
0
10 — 13
10 — 13
10 — 13
10 — 13
ENGINE (DIAGNOSTICS)
Note
(idling)
5
0
5
0
0 — 0.9
0
1 — 14 Duty waveform
1 — 14 Duty waveform
1 — 14 Duty waveform
After engine is warmed
up.
AT model:
Cranking: 8 — 14
0 MT model:
Cranking with the clutch
pedal pressed: 8 — 14
OFF: 0
AT model: Switch is ON
when select lever is
shifted into "P" range or
"N" range.
MT model: Switch is ON
when the shift lever is in
neutral.
When connected: 0
2.5
0
Ignition switch "OFF":
10 — 13
1 — 3.4 Waveform
1 — 3.4 Waveform
1 — 14 Waveform
1 — 14 Waveform
1 — 14 Waveform
1 — 14 Waveform
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