Subaru Impreza 2002 Service Manual page 4200

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