Subaru 2002 Impreza - Page 250

Ignition SW ON
lEnaine OFF)
Engine ON (Idling)
0 -7 - +7 Sensor output waveform
0
0
0
-7 - +7
0
0
Sensor output waveform
-
-
0
-
0 - 0.9
0-1.0
0-1.0
0-1.0
-
0- 1.0
1.0- 1.4
1 .o - 1.4 I After warm-up the engine.
0
Oor5
0 After warm-up the engine.
“5” and “0 are repeatedly dis-
Dlaved when vehicle is driven.
0 or 5
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
r
To @
To @
To @
To a
To @
EN0955
Signal (V)
nector
nal No.
Con- No. I Termi-
Note
Content
Signal (+)
Crank-
shaft posi-
tion sensor
Camshaft
position
sensor
-
0 I 0 I
Signal (-)
Shield
Signal (+)
Signal
(-)
Shield
-
n I 0 I
Signal
Power
supply
GND(sen-
sor)
B135
B135
Throttle
position
sensor
5
5
0 0
Rear oxy-
gen sen-
sor
Signal
Shield
-
n I 0 I
1
61 35 19 0
0
GND(sen-
sor)
Front oxy-
gen (W
sensor
heater
Signal 1
Signal 2 B137 5
0- 1.0
0- 1.0
+-
Rear oxygen sensor
heater signal
Engine
coolant
B135
19
Vehicle speed signal
EN(D0HC TURBO)-26