Subaru Impreza 2002 Service Manual page 254

ENGINE CONTROL MODULE (ECM) I/O SIGNAL
Content nector
AT diagnosis input sig-
B135
nal *2
AT load signal *2 B135
GND (sensors) B135
GND (injectors) B136
GND (ignition system) B136
B136
GND (power supply)
B134
B134
GND (control systems)
B134
GND (oxygen sensor
B137
heater 1)
GND (oxygen sensor
B137
heater 2)
*1: STi model
*2: Except STi model
Con-
Termi-
Ignition SW ON
nal No.
No.
(Engine OFF)
Less than 1 ←→ More
20
than 4
28 4.3 — 4.4
19
8
18
17
22
7
15
9
8
EN(TURBO)-17
Signal (V)
Engine ON (Idling)
Less than 1 ←→ More
than 4
0.9 — 1.4
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
ENGINE (DIAGNOSTICS)
Note
Waveform
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