Subaru 2006 Legacy, Manual

Page: 1824 / 4302

EN(H4DOTC)(diag)-1 8
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
GND (front oxygen (A/F)
sensor heater 1)
B134 7 0 0 —
GND (front oxygen (A/F)
sensor heater 2)
B134 6 0 0 —
GND (electric throttle con-
trol)
B137 3 0 0 —
Intake camshaft position
sensor (LH)
B135 8 0 or 5 0 or 5 Waveform
Intake camshaft position
sensor (RH)
B135 9 0 or 5 0 or 5 Waveform
electric
throttle control
Main B136 18
0.64 — 0.72
Fully open: 3.96
0.64 — 0.72
(After engine is
warmed-up.)
Fully closed: 0.6 Fully
open: 3.96
Sub B136 29
1.51 — 1.58
Fully open: 4.17
1.51 — 1.58
(After engine is
warmed-up.)
Fully closed: 1.48 Fully
open: 4.17
Power
supply
B136 16 5 5 —
GND
(sensor)
B136 35 0 0 —
Electronic throttle control
motor (+)
B137 5 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle control
motor (–)
B137 4 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle control
motor power supply
B137 6 10 — 13 12 — 14 —
Electronic throttle control
motor relay
B135 35
ON: 0
OFF: 10 — 13
ON: 0
OFF: 12— 14
When ignition switch is
turned to ON: ON
Intake oil flow
control valve
(LH)
Signal (+) B134 19
ON: 10 — 13
OFF: 0
ON: 12 — 14
OFF: 0
—
Signal (–) B134 29 0 0 —
Intake oil flow
control valve
(RH)
Signal (+) B134 18
ON: 10 — 13
OFF: 0
ON: 12 — 14
OFF: 0
—
Signal (–) B134 28 0 0 —
Accelerator
position sensor
Main
sensor
signal
B136 17
Fully closed: 1
Fully opened: 3.3
Fully closed: 1
Fully opened: 3.3
—
Main
power
supply
B136 15 5 5 —
GND
(main
sensor)
B136 34 0 0 —
Shield B137 2 0 0 —
Sub sen-
sor signal
B136 28
Fully closed: 1
Fully opened: 3.3
Fully closed: 1
Fully opened: 3.3
—
Sub
power
supply
B136 16 5 5 —
GND
(sub sen-
sor)
B136 35 0 0 —
Starter relay B135 32
ON: 0
OFF: 10 — 13
ON: 0
OFF: 12 — 14
ON: cranking
Description
Connec-
tor No.
Termi-
nal No.
Signal (V)
Note
Ignition SW ON
(engine OFF)
Engine ON
(idling)
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