Engine Control Module (Ecm) I/O Signal - Subaru FORESTER 2001 Service Manual

ENGINE CONTROL MODULE (ECM) I/O SIGNAL

Engine (Diagnostics)
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
Content
Signal (+)
Crankshaft
position Signal (−)
sensor
Shield
Signal (+)
Camshaft
position Signal (−)
sensor
Shield
Signal
Throttle
Power sup-
position
ply
sensor
GND (sen-
sor)
Signal
Rear oxy- Shield
gen sensor
GND (sen-
sor)
Front oxy-
Signal 1
gen (A/F)
sensor
Signal 2
heater
Rear oxygen sensor
heater signal
Engine
Signal
coolant
GND (sen-
tempera-
sor)
ture sensor
Vehicle speed signal
Con-
Termi-
nector
Ignition SW ON
nal No.
No.
(Engine OFF)
B135 2
B135 11
B135 21
B135 1
B135 10
B135 21
B135 7
B135 9
B135 19
B135 17
B135 26
B135 19
B137 4 0 — 1.0
B137 5 0 — 1.0
B136 13 0 — 1.0
B135 18 1.0 — 1.4
B135 19
B134 1
EN(DOHC TURBO)-26
S088526A08
Signal (V)
Engine ON (Idling)
0 −7 — +7
0
0
0 −7 — +7
0
0
Fully closed: 0.2 — 1.0
Fully opened: 4.2 — 4.7
5
0
0 0 — 0.9
0
0
0 — 1.0
0 — 1.0
0 — 1.0
1.0 — 1.4
0
0 or 5 0 or 5
S088526
Note
Sensor output waveform
0
0
Sensor output waveform
0
0
5
0
0
0
After warm-up the engine.
0 After warm-up the engine.
"5" and "0" are repeatedly dis-
played when vehicle is driven.
EN0955
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