Subaru Impreza 2002 Service Manual page 4198

ENGINE CONTROL MODULE (ECM) I/O SIGNAL
Content nector
Signal
Mass air
flow sen- Shield
sor
GND
Intake air temperature
B135
sensor signal
Variable valve timing
solenoid valve LH (+) *1
Variable valve timing
solenoid valve LH (−) *1
Variable valve timing
solenoid valve RH (+)
*1
Variable valve timing
solenoid valve RH (−)
*1
Exhaust Signal B135
gas tem-
GND
perature
B135
(sensor)
sensor *2
Signal
Tumble
generator
Power
valve posi- B135
supply
tion sensor
GND
RH *2
B135
(sensor)
Signal
Tumble
generator
Power
valve posi- B135
supply
tion sensor
GND
LH *2
B135
(sensor)
Tumble generator valve
RH (open) *2
Tumble generator valve
RH (close) *2
Tumble generator valve
LH (open) *2
Tumble generator valve
LH (close) *2
Wastegate control sole-
B137
noid valve
Starter switch B134
A/C switch B134
Ignition switch B134
Neutral position switch B134
Test mode connector B134
Signal B135
Knock
sensor
Shield B135
Back-up power supply B137
B137
Control unit power sup-
ply
B137
Con-
Termi-
Ignition SW ON
nal No.
No.
(Engine OFF)
B84 13
B84 8
B84 7
27
ON: 0
B84 17
OFF: 10 — 13
B84 16
ON: 0
B84 6
OFF: 10 — 13
B84 12
16
19
B84 23
9
19
B84 13
9
19
B84 4 0 or 5
B84 5 0 or 5
B84 11 0 or 5
B84 10 0 or 5
24 10 — 13
16
ON: 10 — 13
6
OFF: 0
14 10 — 13
8
5
4
22
10 10 — 13
2 10 — 13
3 10 — 13
EN(TURBO)-15
Signal (V)
Engine ON (Idling)
— 0.3 — 4.5
0 0
0 0
— —
ON: 0
OFF: 10 — 13
0 0
ON: 0
OFF: 10 — 13
0 0
— —
0 0
Fully closed: 0.2 — 1.0
Fully opened: 4.2 — 4.7
5 5
0 0
Fully closed: 0.2 — 1.0
Fully opened: 4.2 — 4.7
5 5
0 0
0 or 5
0 or 5
0 or 5
0 or 5
13 — 14
0 0
ON: 13 — 14
OFF: 0
13 — 14
ON: 12±0.5
OFF: 0
5 5
2.8 2.8
0 0
13 — 14
13 — 14
13 — 14
ENGINE (DIAGNOSTICS)
Note
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—
—
—
—
—
—
—
—
—
—
—
—
—
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Cranking: 8 — 14
—
—
Switch is ON when gear is in
neutral position.
When connected: 0
—
—
Ignition switch "OFF": 10 — 13
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