2004 SUBARU FORESTER ignition

EN(H4DOTC 2.5)-38
ENGINE (DIAGNOSTIC)
Inspection Mode
5) Connect the Subaru Select Monitor to data link
connector located in the lower portion of the instru-
ment panel (on the driver’s side).
CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and OBD-II general scan tool.
6) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
7) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
8) On the «System Selection Menu» display screen,
select the {Engine} and press the [YES] key.
9) Press the [YES] key after the information of en-
gine type was displayed.
10) On the «Engine Diagnosis» screen, select the
{D Check} and press the [YES] key.
11) When the “Perform D Check?” is shown on the
screen, press the [YES] key.
12) Perform subsequent procedures as instructed
on the display screen.
 If trouble still remains in the memory, the corre-
sponding DTC appears on the display screen.
NOTE:
 For detailed operation procedure, refer to the “SUB-
ARU SELECT MONITOR OPERATION MANUAL”.
 For details concerning DTCs, refer to the List of
Diagnostic Trouble Code (DTC).
Trouble Code (DTC).>
 Release the parking brake. The speed difference between front and rear
wheels may light either the ABS warning light, but this
indicates no malfunctions. When engine control diag-
nosis is finished, perform the ABS memory clearance
procedure of self-diagnosis function. 23, Clear Memory Mode.>
3. OBD-II GENERAL SCAN TOOL
1) Idle the engine.
2) Connect the test mode connector (A) located at
the lower portion of instrument panel (on the driv-
er’s side).
3) Connect the OBD-II general scan tool to its data
link connector in the lower portion of the instrument
panel (on the driver’s side).
CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and OBD-II general scan tool.
4) Start the engine.
NOTE:
 Ensure the select lever is placed in the “P” range
before starting. (AT model)
 Depress the clutch pedal when starting the en-
gine. (MT model)
5) Using the select lever or shift lever, turn the “P”
position switch and the “N” position switch to ON.
6) Depress the brake pedal to turn the brake switch
ON. (AT model)
7) Keep the engine speed in the 2,500 — 3,000
rpm range for 40 seconds.
8) Place the select lever or shift lever in the “D”
range (AT model) or “1st” gear (MT model) and
drive the vehicle at 5 to 10 km/h (3 to 6 MPH).
(A) Power switch
EN-02353
EN-00040
(A)
EN-00333
(A)
EN-02353

EN(H4DOTC 2.5)-42
ENGINE (DIAGNOSTIC)
Clear Memory Mode
13.Clear Memory Mode
A: OPERATION
1. SUBARU SELECT MONITOR (NORMAL
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 en-
gine type was displayed.
4) On the «Engine Diagnosis» display screen, se-
lect the {Memory Clear} and press the [YES] key.
5) When the “Done” are shown on the display
screen, turn the Subaru Select Monitor to OFF after
turning the ignition switch to OFF.
NOTE:
For detailed operation procedure, refer to the “SUB-
ARU SELECT MONITOR OPERATION MANUAL”.
2. SUBARU SELECT MONITOR (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 en-
gine type was displayed.
4) On the «Engine Diagnosis» display screen, se-
lect the {OBD System} and press the [YES] key.
5) On the «OBD Menu» display screen, select the
{DTC Clear} and press the [YES] key.
6) When the “Perform Diagnostic Code(s) Clear?”
is shown on the screen, press the [YES] key.
7) Turn the ignition switch to OFF and then turn the
SUBARU SELECT MONITOR to OFF.
NOTE:
For detailed operation procedure, refer to the “SUB-
ARU SELECT MONITOR OPERATION MANUAL”.
3. OBD-II GENERAL SCAN TOOL
For clear memory procedures using the OBD-II
general scan tool, refer to the OBD-II General Scan
Tool Instruction Manual.

EN(H4DOTC 2.5)-43
ENGINE (DIAGNOSTIC)
Compulsory Valve Operation Check Mode
14.Compulsory Valve Operation
Check Mode
A: OPERATION
1) Prepare the Subaru Select Monitor kit. EN(H4DOTC 2.5)-7, PREPARATION TOOL, Gen-
eral Description.>
2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge to Subaru Select Monitor. to EN(H4DOTC 2.5)-7, PREPARATION TOOL,
General Description.>
4) Connect the test mode connector (A) located at
the lower portion of instrument panel (on the driv-
er’s side).5) Connect the Subaru Select Monitor to data link
connector located in the lower portion of the instru-
ment panel (on the driver’s side).
CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and OBD-II general scan tool.
6) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
7) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
8) On the «System Selection Menu» display screen,
select the {Engine} and press the [YES] key.
9) Press the [YES] key after the information of en-
gine type was displayed.
10) On the «Engine Diagnosis» display screen, se-
lect the {System Operation Check Mode} and press
the [YES] key.
11) On the «System Operation Check Mode»
screen, select the {Actuator ON/OFF Operation}
and press the [YES] key.
12) On the «Actuator ON/OFF Operation» screen,
select the desired compulsory actuator and press
the [YES] key.
EN-00038
EN-00039
EN-00333
(A)
(A) Power switch
EN-02353
EN-00040
(A)

EN(H4DOTC 2.5)-45
ENGINE (DIAGNOSTIC)
Malfunction Indicator Light
15.Malfunction Indicator Light
A: PROCEDURE
B: ACTIVATION OF MALFUNCTION
INDICATOR LIGHT
1) When the ignition switch is turned to ON (engine
off), the malfunction indicator light in the combina-
tion meter illuminates.
NOTE:
If the malfunction indicator light does not illuminate,
perform the diagnosis of malfunction indicator light
circuit or the combination meter circuit. EN(H4DOTC 2.5)-47, MALFUNCTION INDICA-
TOR LIGHT DOES NOT COME ON, Malfunction
Indicator Light.>2) After starting the engine, the malfunction indica-
tor light goes out. If it does not, either the engine or
the emission control system is malfunctioning.
1. Activation of malfunction indicator light. Malfunction Indicator Light.>
↓
2. Check that the malfunction indicator light does not come on. LIGHT DOES NOT COME ON, Malfunction Indicator Light.>
↓
3. Check that the malfunction indicator light does not go off. DOES NOT GO OFF, Malfunction Indicator Light.>
↓
4. Malfunction indicator light does not blink at a cycle of 3 Hz. DOES NOT BLINK AT A CYCLE OF 3 HZ, Malfunction Indicator Light.>
↓
5. Malfunction indicator light remains blinking at a cycle of 3 Hz. LIGHT REMAINS BLINKING AT A CYCLE OF 3 HZ, Malfunction Indicator Light.>
(A) Malfunction indicator light
EN-00335(A)
(1) No faulty
(2) Trouble occurs
(3) ON
(4) OFF
(5) Ignition switch ON
(6) Engine start
EN-01679
(1)
(2)
(5)
(6)(3)
(4)
(3)
(4)

EN(H4DOTC 2.5)-46
ENGINE (DIAGNOSTIC)
Malfunction Indicator Light
3) If the diagnosis system detects a misfire which
could damage the catalyst, the malfunction indica-
tor light will blink at a cycle of 1 Hz.
4) When the ignition switch is turned to ON (engine
off) or to “START” with the test mode connector
connected, the malfunction indicator light blinks at
a cycle of 3 Hz.
(1) ON
(2) OFF
(3) Ignition switch ON
(4) Engine start
(5) Misfire start
(6) 1 second
(1) ON
(2) OFF
(3) Ignition switch ON
(4) 1 second
EN-01680
(2) (1)
(3)
(4)
(5)(6)
EN-01681
(2)(1)
(4)
(3)

EN(H4DOTC 2.5)-47
ENGINE (DIAGNOSTIC)
Malfunction Indicator Light
C: MALFUNCTION INDICATOR LIGHT DOES NOT COME ON
DIAGNOSIS:
The malfunction indicator light circuit is open or shorted.
TROUBLE SYMPTOM:
When the ignition switch is turned to ON (engine OFF), malfunction indicator light does not operate.
WIRING DIAGRAM:
EN-02354
SBF-4 SBF-1
No.14B72
B38
B134ECMi3
E
1 4
17
i12 A:
i10 B:B9
A1
B72 i12 i10
i3
3412
123 456
789 121310 11 14
13
i3 B38
A: B: COMBINATION
METERIGNITION
SWITCHBATTERY
B134
56 7
82 1
94 3
10
24 22 23 25 11 12 13 14 15
26 27
2816 17
18 19 20 21
33 34 29
32 30 31
16
219
32
1234 5610 11 12 13 14 15716
23 3019 20
22 26 27 28 29817
24 3118
25
123456789101112131415161718192021222324252627282930

EN(H4DOTC 2.5)-48
ENGINE (DIAGNOSTIC)
Malfunction Indicator Light
Step Check Yes No
1 CHECK OUTPUT SIGNAL FROM ECM.
1) Turn the ignition switch to ON.
2) Measure the voltage between ECM con-
nector and chassis ground.
Connector & terminal
(B134) No. 17 (+) — Chassis ground (
−):Is the voltage less than 1 V? Go to step 4.Go to step 2.
2 CHECK POOR CONTACT.Does the malfunction indicator
light come on when shaking or
pulling the ECM connector and
harness?Repair the poor
contact in ECM
connector.Go to step 3.
3 CHECK ECM CONNECTOR.Is the ECM connector correctly
connected?Replace the ECM.
FU(H4DOTC 2.5)-
41, Engine Con-
trol Module
(ECM).>Repair the con-
nection of ECM
connector.
4 CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Remove the combination meter. IDI-10, Combination Meter Assembly.>
3) Disconnect the connector from ECM and
combination meter.
4) Measure the resistance of harness between
ECM and combination meter connector.
Connector & terminal
(B134) No. 17 — (i12) No. 1:Is the resistance less than 1
Ω?Go to step 5.Repair the harness
and connector.
NOTE:
In this case repair
the following:
 Open circuit in
harness between
ECM and combi-
nation meter con-
nector
 Poor contact in
coupling connector
5 CHECK POOR CONTACT.
Check poor contact in combination meter con-
nector.Is there poor contact in combi-
nation meter connector?Repair poor con-
tact in combination
meter connector.Go to step 6.
6 CHECK HARNESS BETWEEN COMBINA-
TION METER AND IGNITION SWITCH CON-
NECTOR.
1) Turn the ignition switch to ON.
2) Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 9 (+) — Chassis ground (
−):Is the voltage more than 10 V? Replace the board
of combination
meter. 10, Combination
Meter Assembly.>Check the follow-
ing and repair if
necessary.
N
OTE:
 Blown out of
fuse (No. 14)
 Open or short
circuit in harness
between fuse (No.
14) and battery
terminal
 Poor contact in
ignition switch con-
nector

EN(H4DOTC 2.5)-49
ENGINE (DIAGNOSTIC)
Malfunction Indicator Light
D: MALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
DIAGNOSIS:
The malfunction indicator light circuit is shorted.
TROUBLE SYMPTOM:
Although malfunction indicator light comes on when the engine runs, DTC is not shown on the Subaru Select
Monitor or OBD-II general scan tool display.
WIRING DIAGRAM:
Step Check Yes No
1 CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM.
3) Turn the ignition switch to ON.Does malfunction indicator
light illuminate?Repair short circuit
in harness
between combina-
tion meter and
ECM connector.Replace the ECM.
FU(H4DOTC 2.5)-
41, Engine Con-
trol Module
(ECM).>
EN-02354
SBF-4 SBF-1
No.14B72
B38
B134ECMi3
E
1 4
17
i12 A:
i10 B:B9
A1
B72 i12 i10
i3
3412
123 456
789 121310 11 14
13
i3 B38
A: B: COMBINATION
METERIGNITION
SWITCHBATTERY
B134
56 7
82 1
94 3
10
24 22 23 25 11 12 13 14 15
26 27
2816 17
18 19 20 21
33 34 29
32 30 31
16
219
32
1234 5610 11 12 13 14 15716
23 3019 20
22 26 27 28 29817
24 3118
25
123456789101112131415161718192021222324252627282930