Subaru 2009 IMPREZA Service Manual page 1241

ENGINE (DIAGNOSTICS)
Contents
Cruise control command switch
Cruise control main switch
Fuel tank pressure sensor
Pressure control solenoid valve
Drain valve
Fuel temperature sensor
Signal 1
Immobilizer
Signal 2
CAN communication (+)
CAN communication (–)
AT/MT identification
Blow-by leak diagnosis
Tumble generator valve position
sensor signal (RH)
Tumble generator valve position
sensor signal (LH)
Tumble generator valve RH (closed)
Tumble generator valve LH (closed)
Tumble generator valve (RH open)
Tumble generator valve (LH open)
Signal
Secondary air
pipe pressure Power supply
sensor
Ground
(sensor)
Secondary air combination valve
relay 1
Secondary air combination valve
relay 2
Secondary air pump relay
Self-shutoff control
Ground (ignition system)
Ground (engine 1)
Ground (engine 2)
Engine Control Module (ECM) I/O Signal
Connector Terminal
No. No.
B135 24
B135 12
B135 32
B136 28
B136 17
B135 17
B136 26
B136 34
B136 27
B136 35
B136 15
B134 30
B134 26
B134 16
B137 23
B137 13
B137 22
B137 12
B134 27
B134 19
B134 29
B135 15
B135 14
B136 8
B136 23
B137 26
B137 6
B134 5
B137 7
EN(H4DOTC)(diag)-20
Signal (V)
Ignition SW ON
(engine OFF)
When operating When operating
nothing: 3.5 — 4.5 nothing: 3.5 — 4.5
When operating When operating
RES/ACC: 2.5 — 3.5 RES/ACC: 2.5 — 3.5
When operating SET/ When operating SET/
COAST: 0.5 — 1.5 COAST: 0.5 — 1.5
When operating When operating
CANCEL: 0 — 0.5 CANCEL: 0 — 0.5
ON: 0
OFF: 5
2.3 — 2.7
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
2.5 — 3.8
—
—
—
—
0
0
Fully closed:
0.4 — 1.2
Fully opened: Fully opened:
2.8 — 4.6
Fully closed:
0.4 — 1.2
Fully opened: Fully opened:
2.8 — 4.6
0 or 10 — 13 0 or 12 — 14
0 or 10 — 13 0 or 12 — 14
0 or 10 — 13 0 or 12 — 14
0 or 10 — 13 0 or 12 — 14
2.2 — 2.8
5.12
0
ON: 0
OFF: 10 — 13 OFF: 12 — 14
ON: 0
OFF: 10 — 13 OFF: 12 — 14
ON: 0
OFF: 10 — 13 OFF: 12 — 14
10 — 13
0
0
0
0
Note
Engine ON
(idling)
ON: 0
OFF: 5
2.3 — 2.7
Ambient temperature:
2.5 — 3.8
25°C (77°F)
—
—
—
—
0
At the time of open
0
circuit (fault): 5
Fully closed:
0.4 — 1.2
2.8 — 4.6
Fully closed:
0.4 — 1.2
2.8 — 4.6
When secondary air
2.2 — 2.8
is inducted: 3.2 — 4.9
5.12
0
ON: 0
ON: 0
ON: 0
12 — 14
0
0
0
0
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