2004 SUBARU FORESTER Service Repair Manual

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Page 1649 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-19
ENGINE (DIAGNOSTIC)
Electrical Component Location
(1)
EN-00320(2)
EN-00321
(3)
(4)
EN-00237EN-00322
(5)
EN-00323
(7)
(8)
(6)
EN-00324(9)

Page 1650 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-20
ENGINE (DIAGNOSTIC)
Electrical Component Location
2. TRANSMISSION
UNIT
LHD MODEL
RHD MODEL
(1) Transmission Control Module
(TCM) (for AT model)(2) AT diagnostic indicator light (f

Page 1651 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-21
ENGINE (DIAGNOSTIC)
Electrical Component Location
SENSOR
(1) Rear vehicle speed sensor (AT
model)(3) Front vehicle speed sensor (AT
model)(5) ATF temperature sensor (AT
model)
(2) F

Page 1652 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-22
ENGINE (DIAGNOSTIC)
Electrical Component Location
SOLENOID VALVE & SWITCH (AT model)
SOLENOID VALVE & SWITCH (MT model)
(1) Inhibitor switch (4) Line pressure duty solenoid (7) 2-4 b

Page 1653 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-23
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
DESCRIPTION Connector No. Terminal No.Signal (V)
NOTE
Ign

Page 1654 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-24
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
AV C S
camshaft
position
sensor RHSignal (+) B135 21 0−7 — +7 Waveform
Signal (−) B135 29 0 0 —
Shield B135 30 0 0

EN(H4DOTC)-24
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
AV C S
camshaft
position
sensor RHSignal (+) B135 21 0−7 — +7 Waveform
Signal (−) B135 29 0 0 —
Shield B135 30 0 0 —
AV C S
camshaft
position
sensor LHSignal (+) B135 20 0−7 — +7 Waveform
Signal (−) B135 28 0 0 —
Shield B135 30 0 0 —
Generator signal B134 22ON: 1, or less
OFF: 10 — 13ON: 1, or less
OFF: 10 — 13Wavefor m
Air flow
sensorSignal B136 23 — 0.3 — 4.5 —
Shield B136 32 0 0 —
GND B136 31 0 0 —
Intake air temperature
sensor signalB136 13 0.3 — 4.6 0.3 — 4.6 —
Exhaust
gas tem-
perature
sensorSignal B136 24 — — —
GND
(sensor)B136 35 0 0 —
Tu m b l e
generator
valve posi-
tion sen-
sor RHSignal B136 27Fully closed: 3.8 — 4.9
Fully opened: 0.2 — 0.9—
Pow er
supplyB136 16 5 5 —
GND
(sensor)B136 35 0 0 —
Tu m b l e
generator
valve posi-
tion sen-
sor LHSignal B136 26Fully closed: 3.8 — 4.9
Fully opened: 0.2 — 0.9—
Pow er
supplyB136 16 5 5 —
GND
(sensor)B136 35 0 0 —
Tumble generator valve
RH (open)B134 9 0 or 10 — 13 0 or 13 — 14 Waveform
Tumble generator valve
RH (close)B134 8 0 or 10 — 13 0 or 13 — 14 Waveform
Tumble generator valve
LH (open)B134 11 0 or 10 — 13 0 or 13 — 14 Waveform
Tumble generator valve
LH (close)B134 10 0 or 10 — 13 0 or 13 — 14 Waveform
Wastegate control sole-
noid valveB134 32 0 or 10 — 13 0 or 13 — 14 —
Starter switch B137 8 0 0 Cranking: 8 — 14
A/C switch B137 17ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Ignition switch B137 14 10 — 13 13 — 14 —
Neutral Position Switch B137 9ON: 12±0.5
OFF: 0Switch is ON when gear is in
neutral position.
Test Mode Connector B137 15 10 — 13 13 — 14 When connected: 0
Knock
sensorSignal B136 25 2.8 2.8 —
Shield B136 33 0 0 —
Back-up power supply B135 19 10 — 13 13 — 14 Ignition switch “OFF”: 10 — 13
Control module power
supplyB135 5 10 — 13 13 — 14 —
B135 6 10 — 13 13 — 14 — DESCRIPTION Connector No. Terminal No.Signal (V)
NOTE
Ignition SW ON
(engine OFF)Engine ON
(Idling)

Page 1655 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-25
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Sensor power supply B136 16 5 5 —
Oil flow
control
solenoid
valve RHSignal (+) B134 18ON: 10 — 13
OFF: 0ON: 13 — 14
OF

EN(H4DOTC)-25
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Sensor power supply B136 16 5 5 —
Oil flow
control
solenoid
valve RHSignal (+) B134 18ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Signal (−) B134 28 0 0 —
Oil flow
control
solenoid
valve LHSignal (+) B134 19ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Signal (−) B134 29 0 0 —
Ignition
control#1 B135 18 0 13 — 14 Waveform
#2 B135 17 0 13 — 14 Waveform
#3 B135 16 0 13 — 14 Waveform
#4 B135 15 0 13 — 14 Waveform
Fuel injec-
tor#1 B136 6 10 — 13 1 — 14 Waveform
#2 B136 5 10 — 13 1 — 14 Waveform
#3 B136 4 10 — 13 1 — 14 Waveform
#4 B136 3 10 — 13 1 — 14 Waveform
Idle air
control
solenoid
valveSignal B134 27 0 or 13 — 14 0 or 13 — 14 Waveform
Fuel pump
control unitDiagnosis
signalB137 28 10 — 13 13 — 14 Waveform
Control
signalB135 27 0 or 5 0 or 5 —
A/C relay control B135 33ON: 0.5, or less
OFF: 10 — 13ON: 0.5, or less
OFF: 13 — 14—
Radiator fan relay 1 con-
trolB135 25ON: 0.5, or less
OFF: 10 — 13ON: 0.5, or less
OFF: 13 — 14—
Radiator fan relay 2 con-
trolB135 24ON: 0.5, or less
OFF: 10 — 13ON: 0.5, or less
OFF: 13 — 14Model with A/C
Malfunction indicator
lightB134 17 — —Light “ON”: 1, or less
Light “OFF”: 10 — 14
Engine speed output B134 23 — 0 — 13, or more Waveform
Purge control solenoid
valveB134 14ON: 1, or less
OFF: 10 — 13ON: 1, or less
OFF: 13 — 14Wavefor m
Manifold
absolute
pressure
sensorSignal B136 22 1.7 — 2.4 1.1 — 1.6
— Pow er
supplyB136 16 5 5
GND
(sensors)B136 35 0 0
Fuel level sensor B136 20 0.12 — 4.75 0.12 — 4.75 —
Small light switch B137 12ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Blower fan switch B137 13ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Rear defogger switch B137 11ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Power steering oil pres-
sure switchB137 10 10 — 13ON: 0
OFF: 13 — 14—
Wiper switch B137 23ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0— DESCRIPTION Connector No. Terminal No.Signal (V)
NOTE
Ignition SW ON
(engine OFF)Engine ON
(Idling)

Page 1656 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC)-26
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Front oxygen (A/F) sen-
sor signal (+)B134 33 2.8 — 3.2 2.8 — 3.2 —
Front oxygen (A/F) sen-
sor signal (−)B134 26 2.4 �

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