Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 2 - Engine Section (H4SO) Engine (Diagnostics) Engine Control Module (ECM) IO Signal
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ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
To B135 To B137
7 6 5 4 3 2 1 4 3 2 1
19 18 17 16 15 14 13 12 11 10 9 8 13 12 11 10 9 8 7 6 5
28 27 26 25 24 23 22 21 20 20 19 18 17 16 15 14
To B136 To B134
6 5 4 3 2 1 8 7 6 5 4 3 2 1
17 16 15 14 13 12 11 10 9 8 7 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
26 25 24 23 22 21 20 19 18 35 34 33 32 31 30 29 28 27 26 25 24
EN-02054
Con- Signal (V)
Terminal
Content nector Ignition SW ON Note
No. Engine ON (Idling)
No. (Engine OFF)
Crank- Signal (+) B135 7 0 -7 -- +7 Sensor output waveform
shaft posi- Signal (-) B135 17 0 0 --
tion sensor Shield B135 28 0 0 --
Camshaft Signal (+) B135 6 0 -7 -- +7 Sensor output waveform
position Signal (-) B135 18 0 0 --
sensor Shield B135 28 0 0 --
Fully closed: 0.2 -- 1.0
Signal B135 13 --
Fully opened: 4.2 -- 4.7
Throttle
Power
position B135 3 5 5 --
supply
sensor
GND (sen-
B135 19 0 0 --
sor)
Signal B135 14 0 0 -- 0.9 --
Rear oxy-
Shield B137 15 0 0 --
gen sen-
sor GND (sen-
B135 19 0 0 --
sor)
Front oxy- Signal 1 B136 6 0 -- 1.0 0 -- 1.0 --
gen (A/F)
sensor Signal 2 B136 17 0 -- 1.0 0 -- 1.0 --
heater
Rear oxygen sensor
B136 4 0 -- 1.0 0 -- 1.0 --
heater signal
Engine Signal B135 12 1.0 -- 1.4 1.0 -- 1.4 After warm-up the engine.
coolant
tempera- GND (sen-
ture sen- B135 19 0 0 After warm-up the engine.
sor)
sor
"5" and "0" are repeatedly dis-
Vehicle speed signal B137 10 0 or 5 0 or 5
played when vehicle is driven.
Starter switch B136 20 0 0 Cranking: 8 -- 14
EN(H4SO)-22
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
Con- Signal (V)
Terminal
Content nector Ignition SW ON Note
No. Engine ON (Idling)
No. (Engine OFF)
ON: 10 -- 13 ON: 13 -- 14
A/C switch B136 11 --
OFF: 0 OFF: 0
Ignition switch B136 10 10 -- 13 13 -- 14 --
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