Subaru Impreza 2004 - Page 331

EN(H4SO)(diag)-25
ENGINE (DIAGNOSTICS)
Engine Control Module (ECM) I/O Signal
* : Without immobilizer
Small light switch B137 20
ON: 0
OFF: 10 — 13
ON: 0
OFF: 12 — 14
—
Blower fan switch B137 13
ON: 0
OFF: 10 — 13
ON: 0
OFF: 12 — 14
—
Rear defogger switch B137 4
ON: 0
OFF: 10 — 13
ON: 0
OFF: 12 — 14
—
Front oxygen (A/F) sen-
sor signal 1
B136 13 — 2.05 — 2.25 —
Front oxygen (A/F) sen-
sor signal 2
B136 22 — 1.75 — 1.95 —
Manifold absolute pres-
sure sensor
B135 15 4.0 — 4.8 1.1 — 1.9 —
Intake air temperature
sensor
B137 6 3.15 — 3.33 3.15 — 3.33
Intake air temperature: 25°C
(75°F)
Air assisted injector
solenoid valve
B134 12
ON: 1, or less
OFF: 10 — 13
ON: 1, or less
OFF: 12 — 14
—
Immobilizer input/output B137 17
Less than 1 ←→
More than 4
Less than 1 ←→
More than 4
—
Immobilizer input/output B137 18
Less than 1 ←→
More than 4
Less than 1 ←→
More than 4
—
Power steering switch B136 9
ON: 1, or less
OFF: 10 — 13
ON: 1, or less
OFF: 12 — 14
—
Front wiper signal B137 11
ON: 0, or 10 — 13
OFF: 0
ON: 0, or 12 — 14
OFF: 0
—
Generator control B136 25 0 — 6.5 0 — 6.5 —
SSM/GST communica-
tion line
B137 16
Less than 1 ←→
More than 4
Less than 1 ←→
More than 4
—
GND (sensors) B135 19 0 0 —
GND (injectors) B134 35 0 0 —
GND (ignition system) B136 26 0 0 —
GND (power supply) B134 7 0 0 —
GND (control systems)
B137 14 0 0 —
B135 21 0 0 —
GND (oxygen sensor
heater 1)
B136 5 0 0 —
GND (oxygen sensor
heater 2)
B136 16 0 0 —
Content
Connector
No.
Terminal
No.
Signal (V)
Note
Ignition SW ON
(Engine OFF)
Engine ON (Idling)