2004 SUBARU FORESTER fog light

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)

EN(H4DOTC)-35
ENGINE (DIAGNOSTIC)
Subaru Select Monitor
NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
5. READ CURRENT DATA FOR ENGINE (OBD MODE)
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Engine} and press the [YES] key.
3) Press the [YES] key after the information of engine type was displayed.
4) On the «Engine Diagnosis» display screen, select the {OBD System} and press the [YES] key.
5) On the «OBD Menu» screen, select the {Current Data Display/Save}, and then press the [YES] key.
6) On the «Data Display Menu» screen, select the {Data Display} and press the [YES] key.
7) Using the scroll key, move the display screen up or down until the desired data is shown.
 A list of the support data is shown in the following table.
Air conditioning signal A/C Compressor Signal ON or OFF
Radiator main fan relay signal Radiator Fan Relay #1 ON or OFF
Knocking signal Knocking Signal ON or OFF
Radiator sub fan relay signal Radiator Fan Relay #2 ON or OFF
Power steering switch signal P/S Switch ON or OFF
Engine torque control permission signal Torque Permission Signal ON or OFF
Rear oxygen sensor rich signal Rear Oxygen Rich Signal ON or OFF
Starter switch signal Starter Switch ON or OFF
Idle switch signal Idle Switch ON or OFF
Crankshaft position sensor signal Crankshaft Position Sig. ON or OFF
Camshaft position sensor signal Camshaft Position Sig. ON or OFF
Rear defogger switch signal Rear Defogger SW ON or OFF
Blower fan switch signal Blower Fan SW ON or OFF
Small light switch signal Light Switch ON or OFF
Tumble generated valve output signal TGV Output ON or OFF
Exhaust temperature signal Exhaust Gas Temperature°C
Estimated cumulative driving distance Odd Meter km
Roughness Monitor for #1 cylinder Roughness Monitor #1 —
Roughness Monitor for #2 cylinder Roughness Monitor #2 —
Roughness Monitor for #3 cylinder Roughness Monitor #3 —
Roughness Monitor for #4 cylinder Roughness Monitor #4 —
Wiper switch signal Wiper Switch ON or OFF
A/C middle pressure switch signal A/C Mid pressure switch ON or OFF
AT retard angle demand signal Retard Signal from AT ON or OFF
AT fuel cut demand signal Fuel Cut Signal from AT ON or OFF
Description Display Unit of measure
Number of diagnosis code Number of Diag. Code —
Condition of malfunction indicator light MI (MIL) ON or OFF
Monitoring test of misfire Misfire monitoring Complete or incomplete
Monitoring test of fuel system Fuel system monitoring Complete or incomplete
Monitoring test of comprehensive component Component monitoring Complete or incomplete
Test of catalyst Catalyst Diagnosis Complete or incomplete
Test of heating-type catalyst Heated catalyst No support
Test of evaporative emission purge control system Evaporative purge system No support
Test of secondary air system Secondary air system No support
Test of air conditioning system refrigerant A/C system refrigerant No support
Test of oxygen sensor Oxygen sensor Complete or incomplete
Test of oxygen sensor heater Oxygen Heater Diagnosis Complete or incomplete
Test of EGR system EGR system No supportRemarks Display Unit of measure

EN(H4DOTC)-37
ENGINE (DIAGNOSTIC)
Subaru Select Monitor
7. LED OPERATION MODE FOR ENGINE
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Engine} and press the [YES] key.
3) Press the [YES] key after the information of engine type was displayed.
4) On the «Engine Diagnosis» screen, select the {Current Data Display/Save}, and then press the [YES] key.
5) On the «Data Display» screen, select the {Data & LED Display} and press the [YES] key.
6) Using the scroll key, move the display screen up or down until the desired data is shown.
 A list of the support data is shown in the following table.
NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
Description Display Message LED “ON” requirements
Ignition switch signal Ignition Switch ON or OFF When ignition switch is ON.
Test mode connector signal Test Mode Signal ON or OFF When test mode connector is connected.
Neutral position switch signal Neutral Position Switch ON or OFF When neutral position signal is entered.
Air conditioning switch signal A/C Switch ON or OFF When air conditioning switch is ON.
Air conditioning relay signal A/C Compressor Signal ON or OFF When air conditioning relay is in function.
Radiator main fan relay signal Radiator Fan Relay #1 ON or OFF When radiator main fan relay is in function.
Knocking signal Knocking Signal ON or OFF When knocking signal is input.
Radiator sub fan relay signal Radiator Fan Relay #2 ON or OFF When radiator sub fan relay is in function.
Engine torque control permission
signalTorque Control Permission ON or OFFWhen engine torque control permission sig-
nal is entered.
Rear oxygen sensor rich signalRear O
2 Rich Signal
ON or OFFWhen rear oxygen sensor mixture ratio is
rich.
Starter switch signal Starter Switch ON or OFF When starter switch signal is entered.
Idle switch signal Idle Switch ON or OFF When idle switch signal is entered.
Crankshaft position sensor signal Crankshaft Position Signal ON or OFFWhen crankshaft position sensor signal is
input.
Camshaft position sensor signal Camshaft Position Signal ON or OFFWhen camshaft position sensor signal is
entered.
Power steering switch signal P/S Switch ON or OFF When power steering switch is entered.
Rear defogger switch signal Rear Defogger Switch ON or OFF When rear defogger switch is ON.
Blower fan switch signal Blower Fan Switch ON or OFF When blower fan switch is ON.
Light switch signal Light Switch ON or OFF When small light switch is ON.
Wiper switch signal Wiper Switch ON or OFF When wiper switch is ON.
A/C middle pressure switch signal A/C Mid Pressure Switch ON or OFF When A/C switch is ON.
AT retard angle demand signal Retard Signal from AT ON or OFF When AT retard angle demand signal exists.
AT fuel cut demand signal Fuel Cut Signal from AT ON or OFF When AT fuel cut demand signal exists.
AT/MT identification signal AT Vehicle ID Signal ON or OFF For AT model
Tumble generated valve actuator
signalTGV Output ON or OFF When TGV actuator signal is output.
Tumble generated valve drive sig-
nalTGV DriveOPEN or
CLOSEWhen TGV moves and valve opens.

EN(H4DOTC 2.5)-3
ENGINE (DIAGNOSTIC)
Check List for Interview
2. Check List for Interview
A: INSPECTION
1. CHECK LIST No. 1
Check the following items when problem has occurred.
NOTE:
Use copies of this page for interviewing customers.
Customer’s name Engine No.
Date of sale Fuel brand
Date of repair
Odometer readingkm
V.I.N.miles
Weather❏ Fine
❏ Cloudy
❏ Rainy
❏ Snowy
❏ Va r i o u s / O t h e r s :
Ambient air temperature°C (°F)
❏ Hot
❏ War m
❏ Cool
❏ Cold
Place❏ Highway
❏ Suburbs
❏ Inner city
❏ Uphill
❏ Downhill
❏ Rough road
❏ Others:
Engine temperature❏ Cold
❏ War ming-up
❏ After warming-up
❏ Any temperature
❏ Others:
Engine speed rpm
Vehicle speed km/h (MPH)
Driving conditions❏ Not affected
❏ At starting
❏ While idling
❏ At racing
❏ While accelerating
❏ While cruising
❏ While decelerating
❏ While turning (RH/LH)
Headlight❏ ON / ❏ OFF Rear defogger❏ ON / ❏ OFF
Blower❏ ON / ❏ OFF Radio❏ ON / ❏ OFF
A/C compressor❏ ON / ❏ OFF CD/Cassette❏ ON / ❏ OFF
Radiator fan❏ ON / ❏ OFF Car phone❏ ON / ❏ OFF
Fr o nt wi pe r❏ ON / ❏ OFF CB❏ ON / ❏ OFF
Rear Wiper❏ ON / ❏ OFF

EN(H4DOTC 2.5)-19
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Radiator fan relay 2 con-
trolB135 24ON: 0.5, or less
OFF: 10 — 13ON: 0.5, or less
OFF: 13 — 14Model with A/C only
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
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—
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 — 2.7 2.4 — 2.7 —
Front oxygen (A/F) sen-
sor shieldB134 25 0 0 —
SSM/GST communica-
tion lineB137 20 1 ← → 41 ← → 4—
GND (injector) B137 7 0 0 —
GND (ignition system) B135 12 0 0 —
GND (power supply)B135 4 0 0 —
B135 1 0 0 —
GND (control system)B137 1 0 0 —
B137 2 0 0 —
GND (Front oxygen (A/F)
sensor heater 1)B134 7 0 0 —
GND (Front oxygen (A/F)
sensor heater 2)B134 6 0 0 —
Camshaft position sen-
sor (LH)B135 8 0 — 0.9ON: 0
OFF: 4.7 — 5.3Wavefor m
Camshaft position sen-
sor (RH)B135 9 0 — 0.9ON: 0
OFF: 4.7 — 5.3Wavefor m
Fuel level sensor B136 20 0.12 — 4.75 0.12 — 4.75 —
Electronic
throttle
controlMain B136 180.64 — 0.72
Fully opens:
3.960.64 — 0.72
(After engine is
warmed-up.)Fully closed: 0.6 Fully opens:
3.96
Sub B136 291.51 — 1.58
Fully opens:
4.171.51 — 1.58
(After engine is
warmed-up)Fully closed: 1.48 Fully opens:
4.17
Pow er
supplyB136 16 5 5 —
GND
(sensor)B137 3 0 0 — DESCRIPTION Connector No. Terminal No.Signal (V)
NOTE
Ignition SW ON
(engine OFF)Engine ON
(Idling)

EN(H4DOTC 2.5)-29
ENGINE (DIAGNOSTIC)
Subaru Select Monitor
NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
Mass air flow sensor signal Air Flow Sensor Voltage V
AT/MT identification signal AT Vehicle ID Signal ON or OFF
ETC motor relay ETC Motor Relay ON or OFF
Clutch SW Clutch Switch ON or OFF
Stop Light SW Stop Light Switch ON or OFF
SET/COAST SW SET/COAST Switch ON or OFF
RESUME/ACCEL SW RESUME/ACCEL Switch ON or OFF
Brake SW Brake Switch ON or OFF
Main SW Main Switch ON or OFF
Ignition switch signal Ignition Switch ON or OFF
Test Mode Signal Test Mode Signal ON or OFF
Neutral position switch signal Neutral Position Switch ON or OFF
Air conditioning switch signal A/C Switch ON or OFF
Air conditioning signal A/C Compressor Signal ON or OFF
Radiator main fan relay signal Radiator Fan Relay #1 ON or OFF
Knocking signal Knocking Signal ON or OFF
Radiator sub fan relay signal Radiator Fan Relay #2 ON or OFF
Power steering switch signal P/S Switch ON or OFF
Rear oxygen sensor rich signalRear O
2 Rich Signal
ON or OFF
Starter switch signal Starter Switch ON or OFF
Idle switch signal Idle Switch Signal ON or OFF
Crankshaft position sensor signal Crankshaft Position Sig. ON or OFF
Camshaft position sensor signal Camshaft Position Sig. ON or OFF
Rear defogger switch signal Rear Defogger SW ON or OFF
Blower fan switch signal Blower Fan SW ON or OFF
Small light switch signal Light Switch ON or OFF
Handle switch signal Handle Switch —
Wiper switch signal Wiper Switch ON or OFF
A/C mid pressure switch signal A/C mid Pressure Switch ON or OFF
AT coordinate retard angle demand Retard Signal form AT ON or OFF
AT coordinate fuel cut demand Fuel Cut Signal from AT ON or OFF
AT coordinate permission signal Torque Permission Signal ON or OFF
UDC not torque down output Ban of Torque Down ON or OFF
UDC torque down demand Request Torque Down UDC ON or OFF
Tumble generated valve output signal TGV Output ON or OFF
Tumble generated valve drive signal TGV Drive OPEN or CLOSERemarks Display Unit of measure

EN(H4DOTC 2.5)-32
ENGINE (DIAGNOSTIC)
Subaru Select Monitor
7. LED OPERATION MODE FOR ENGINE
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Engine} and press the [YES] key.
3) Press the [YES] key after the information of engine type was displayed.
4) On the «Engine Diagnosis» screen, select the {Current Data Display/Save}, and then press the [YES] key.
5) On the «Data Display» screen, select the {Data & LED Display} and press the [YES] key.
6) Using the scroll key, move the display screen up or down until the desired data is shown.
 A list of the support data is shown in the following table.
Description Display Message LED “ON” requirements
Ignition switch signal Ignition Switch ON or OFF When ignition switch is ON.
Test Mode Signal Test Mode Signal ON or OFF When test mode connector is connected.
Neutral position switch signal Neutral Position Switch ON or OFF When neutral position signal is entered.
Air conditioning switch signal A/C Switch ON or OFF When air conditioning switch is ON.
Air conditioning relay signal A/C Compressor Signal ON or OFF When air conditioning relay is in function.
Radiator main fan relay signal Radiator Fan Relay #1 ON or OFF When radiator main fan relay is in function.
Knocking signal Knocking Signal ON or OFF When knocking signal is input.
Radiator sub fan relay signal Radiator Fan Relay #2 ON or OFF When radiator sub fan relay is in function.
Rear oxygen sensor rich signalRear O
2 Rich Signal
ON or OFFWhen rear oxygen sensor mixture ratio is
rich.
Starter switch signal Starter Switch Signal ON or OFF When starter switch signal is entered.
Idle switch signal Idle Switch Signal ON or OFF When idle switch signal is entered.
Crankshaft position sensor signal Crankshaft Position Signal ON or OFFWhen crankshaft position sensor signal is
input.
Camshaft position sensor signal Camshaft Position Signal ON or OFFWhen camshaft position sensor signal is
entered.
Power steering switch signal P/S Switch ON or OFF When power steering switch is entered.
Rear defogger switch signal Rear Defogger Switch ON or OFF When rear defogger switch is ON.
Blower fan switch signal Blower Fan Switch ON or OFF When blower fan switch is ON.
Small light switch signal Light Switch ON or OFF When small light switch is ON.
Tumble generated valve actuator
signalTGV Output ON or OFF When TGV actuator signal is entered.
Tumble generated valve drive sig-
nalTGV DriveClose or
OpenWhen TGV moves and valve opens.
Handle switch signal Handle SWLow Input
or High
InputIlluminates in Low Input.
AT/MT identification terminal AT Vehicle ID Signal ON or OFF ON (AT model).
Wiper switch signal Wiper Switch ON or OFF When wiper switch is turned to ON.
A/C mid pressure switch signal A/C Mid Pressure Switch ON or OFFWhen A/C mid pressure switch is turned to
ON.
AT coordinate retard angle
demandRetard Signal from AT ON or OFF When AT retard angle signal is exists.
AT coordinate fuel cut demand Fuel Cut Signal from AT ON or OFFWhen AT coordinate fuel cut demand signal
is exists.
AT coordinate permission signal Torque Permission Signal ON or OFFWhen AT coordinate permission signal is
exists.
VDC not torque down out put Ban of Torque Down ON or OFFWhen VDC not torque down output signal is
exists.
VDC torque down demand Request Torque Down VDC ON or OFFWhen VDC torque down demand signal is
exists.
ETC motor relay signal ETC Motor Relay ON or OFFWhen electronic throttle control relay is in
function.
Clutch switch signal Clutch Switch ON or OFF When clutch switch is ON.
Stop switch signal Stop Light Switch ON or OFF When stop light switch is ON.

4AT(H4DOTC)-17
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Subaru Select Monitor
3. CLEAR MEMORY MODE
1) On the «Main Menu» display screen, select the
{2. Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen,
select the {Transmission Control System} and press
the [YES] key.
3) Press the [YES] key after the information of
transmission type is displayed.
4) On the «Transmission Diagnosis» display screen,
select the {Clear Memory} and press the [YES] key.
5) When the “Done” is shown on display screen,
turn the Subaru Select Monitor and ignition switch
to OFF.
NOTE:
 For details concerning operation procedure, refer
to the SUBARU SELECT MONITOR OPERATION
MANUAL.
 When {Clear Memory 2} is selected and executed,
DTC and learned control memory is cleared. If Clear
Memory 2 is performed, execute the learning con-
trol. OF LEARNING CONTROL, OPERATION, Subaru
Select Monitor.>
4. FACILITATION OF LEARNING CON-
TROL
1) Shift the select lever to “P” range, and apply
parking brake.
2) Lift-up the vehicle.
3) Connect the Subaru Select Monitor to data link
connector, and then turn the ignition switch to ON.
4) Perform the {Clear Memory 2} using Subaru Select
Monitor. ORY MODE, OPERATION, Subaru Select Monitor.>
5) Using Subaru Select Monitor, check that the DTC
is not output. AGNOSTIC TROUBLE CODE, OPERATION, Sub-
aru Select Monitor.>
6) Warm-up the engine until the ATF temperature
which is displayed on the Subaru Select Monitor is
within 60 — 90°C (140 — 194°F). 4AT(H4DOTC)-15, READ CURRENT DATA, OP-
ERATION, Subaru Select Monitor.>
7) Shift the select lever to “R” range.
8) Turn all switches including headlight, air condi-
tioner, seat heater, rear defogger and etc. to OFF.
9) Turn the ignition switch to OFF.
10) Depress the brake pedal fully until the facilitation
of learning control is completed when the “Communi-
cation Failed!” is displayed on Subaru Select Monitor.
11) Turn the ignition switch to ON.
12) Check that the Subaru Select Monitor is re-
turned to normal operation.
13) Shift the select lever to “P” range, and then wait
for more than 3 seconds.14) Shift the select lever to “R” range, and then wait
for more than 3 seconds.
15) Shift the select lever to “N” range, and then wait
for more than 3 seconds.
16) Shift the select lever to “D” range, and then wait
for more than 3 seconds.
17) Shift the select lever to “N” range, and then wait
for more than 3 seconds.
18) Slightly depress the accelerator pedal fully.
19) Slightly release the accelerator pedal fully.
20) Start the engine, and idle it.
21) Shift the select lever to “D” range.
22) Start the facilitation of learning control. At this
time, the POWER indicator light in combination meter
blinks at 2 Hz. When the POWER indicator light does
not blink, turn the ignition switch to OFF and repeat
the procedures from step 4). When the POWER indi-
cator light which blinking at 2 Hz changes to blink at
0.5 Hz, facilitation of learning control is completed.
NOTE:
When blinking of POWER indicator light changes
from 2 Hz to 4 Hz during facilitation of learning con-
trol, repeat the procedure from step 4).
23) Shift the select lever to “N” range, and then turn
the ignition switch to OFF.
24) Shift the select lever to the “P” range, and then
complete the facilitation of learning control.