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2004 FORESTER SERVICE MANUAL

QUICK REFERENCE INDEX

ENGINE SECTION 1

This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reassembling, inspection and adjustment of
components and diagnostics for guidance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.

FUEL INJECTION (FUEL SYSTEM)

FU(H4SO)

EMISSION CONTROL
(AUX. EMISSION CONTROL DEVICE)

EC(H4SO)

INTAKE (INDUCTION)

IN(H4SO)

MECHANICAL

ME(H4SO)

EXHAUST

EX(H4SO)

COOLING

CO(H4SO)

LUBRICATION

LU(H4SO)

SPEED CONTROL SYSTEM

SP(H4SO)

IGNITION

IG(H4SO)

STARTING/CHARGING SYSTEM

SC(H4SO)

ENGINE (DIAGNOSTIC)

EN(H4SO)

All information, illustration and specifications contained in this manual are
based on the latest product information
available at the time of publication
approval.
FUJI HEAVY INDUSTRIES LTD.

G8080GE2

ENGINE (DIAGNOSTIC)

EN(H4SO)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.

Page
Basic Diagnostics Procedure ......................................................................2
Check List for Interview...............................................................................4
General Description ....................................................................................6
Electrical Component Location ...................................................................9
Engine Control Module (ECM) I/O Signal .................................................21
Engine Condition Data ..............................................................................24
Transmission Control Module (TCM) I/O Signal .......................................25
Data Link Connector .................................................................................26
OBD-II General Scan Tool ........................................................................27
Subaru Select Monitor...............................................................................29
Read Diagnostic Trouble Code (DTC) ......................................................36
Inspection Mode........................................................................................37
Drive Cycle................................................................................................42
Clear Memory Mode..................................................................................44
Compulsory Valve Operation Check Mode ...............................................45
Malfunction Indicator Light ........................................................................47
Diagnostics for Engine Starting Failure.....................................................57
List of Diagnostic Trouble Code (DTC) .....................................................72
Diagnostic Procedure with Diagnostic Trouble Code (DTC) .....................78
General Diagnostic Table........................................................................255

Basic Diagnostics Procedure
ENGINE (DIAGNOSTIC)

1. Basic Diagnostics Procedure
A: PROCEDURE
1. ENGINE

1

Step
CHECK ENGINE START FAILURE.
1) Ask the customer when and how the trouble occurred using the interview check list.
<Ref. to EN(H4SO)-4, INSPECTION, Check
List for Interview.>
2) Start the engine.

Check
Does the engine start?

2

CHECK ILLUMINATION OF MALFUNCTION Does malfunction indicator
INDICATOR LIGHT.
light illuminate?

3

CHECK INDICATION OF DTC ON DISPLAY Does the Subaru Select Moni1) Turn the ignition switch to OFF.
tor or OBD-II general scan tool
2) Connect the Subaru Select Monitor or the indicate DTC?
OBD-II general scan tool to data link connector.
3) Turn the ignition switch to ON and the Subaru Select Monitor or OBD-II general scan tool
switch to ON.
4) Read the DTC on the Subaru Select Monitor or OBD-II general scan tool.

4

PERFORM THE DIAGNOSIS.
1) Perform the Clear Memory Mode. <Ref. to
EN(H4SO)-44, Clear Memory Mode.>
2) Perform the Inspection Mode. <Ref. to
EN(H4SO)-37, Inspection Mode.>

Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC?

EN(H4SO)-2

Yes
Go to step 2.

No
Inspection using
“Diagnostics for
Engine Starting
Failure”. <Ref. to
EN(H4SO)-57,
Diagnostics for
Engine Starting
Failure.>
Go to step 3.
Inspection using
“General Diagnostic Table”. <Ref. to
EN(H4SO)-255,
INSPECTION,
General Diagnostic Table.>
Record the DTC. Repair the related
Repair the trouble parts.
cause. <Ref. to
NOTE:
EN(H4SO)-72, List If DTC is not shown
of Diagnostic Trou- on display although
ble Code (DTC).> the engine warning
Go to step 4.
light illuminates, perform the diagnostics
of engine warning
light circuit or combination meter. <Ref.
to EN(H4SO)-47,
Malfunction Indicator Light.>
Check on “DiagFinish the diagnonostic Procedure sis.
with Diagnostic
Trouble Code
(DTC)”
<Ref. to
EN(H4SO)-78,
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>

Basic Diagnostics Procedure
ENGINE (DIAGNOSTIC)

2. AUTOMATIC TRANSMISSION
When the DTC about automatic transmission is
shown on display, carry out the following basic
check. After that, carry out the replacement or repair work.
1) ATF level check <Ref. to 4AT-30, Automatic
Transmission Fluid.>
2) Differential gear oil level check <Ref. to 4AT-31,
Differential Gear Oil.>
3) ATF leak check <Ref. to 4AT-30, Automatic
Transmission Fluid.>
4) Differential gear oil level check <Ref. to 4AT-31,
Differential Gear Oil.>
5) Stall Test <Ref. to 4AT-33, Stall Test.>
6) Line Pressure Test <Ref. to 4AT-36, Line Pressure Test.>
7) Transfer Clutch Pressure Test <Ref. to 4AT-38,
Transfer Clutch Pressure Test.>
8) Time Lag Test <Ref. to 4AT-35, Time Lag Test.>
9) Road Test <Ref. to 4AT-32, Road Test.>
10) Shift characteristics <Ref. to 4AT-38, Transfer
Clutch Pressure Test.>

EN(H4SO)-3

Check List for Interview
ENGINE (DIAGNOSTIC)

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
Date of sale
Date of repair
V.I.N.
Weather

Engine No.
Fuel brand

❏ Fine
❏ Cloudy
❏ Rainy
❏ Snowy
❏ Various/Others:
°C (°F)

Ambient air temperature

Place

Engine temperature

Engine speed
Vehicle speed
Driving conditions

Headlight
Blower
A/C compressor
Radiator fan
Front wiper
Rear wiper

km
miles

Odometer reading

❏ Hot
❏ Warm
❏ Cool
❏ Cold
❏ Highway
❏ Suburbs
❏ Inner city
❏ Uphill
❏ Downhill
❏ Rough road
❏ Others:
❏ Cold
❏ Warming-up
❏ After warming-up
❏ Any temperature
❏ Others:
rpm
km/h (MPH)
❏ Not affected
❏ At starting
❏ While idling
❏ At racing
❏ While accelerating
❏ While cruising
❏ While decelerating
❏ While turning (RH/LH)
❏ ON / ❏ OFF
❏ ON / ❏ OFF
❏ ON / ❏ OFF
❏ ON / ❏ OFF
❏ ON / ❏ OFF
❏ ON / ❏ OFF

Rear defogger
Audio
Car phone

EN(H4SO)-4

❏ ON / ❏ OFF
❏ ON / ❏ OFF
❏ ON / ❏ OFF

Check List for Interview
ENGINE (DIAGNOSTIC)

2. CHECK LIST No. 2
Check the following items about the vehicle’s state when malfunction indicator light turns on.
NOTE:
Use copies of this page for interviewing customers.
a) Other warning lights or indicators turn on. ❏ Yes / ❏ No
❏ Low fuel warning light
❏ Charge indicator light
❏ AT diagnostic indicator light
❏ ABS Warning light
❏ Oil pressure indicator light
b) Fuel level
• Lack of gasoline: ❏ Yes / ❏ No
• Indicator position of fuel gauge:
• Experienced running out of fuel: ❏ Yes / ❏ No
c) Intentional connecting or disconnecting of harness connectors or spark plug cords: ❏ Yes / ❏ No
• What:
d) Intentional connecting or disconnecting of hoses: ❏ Yes / ❏ No
• What:
e) Installing of other parts except genuine parts: ❏ Yes / ❏ No
• What:
• Where:
f) Occurrence of noise: ❏ Yes / ❏ No
• From where:
• What kind:
g) Occurrence of smell: ❏ Yes / ❏ No
• From where:
• What kind:
h) Intrusion of water into engine compartment or passenger compartment: ❏ Yes / ❏ No
i) Troubles occurred
❏ Engine does not start.
❏ Engine stalls during idling.
❏ Engine stalls while driving.
❏ Engine speed decreases.
❏ Engine speed does not decrease.
❏ Rough idling
❏ Poor acceleration
❏ Back fire
❏ After fire
❏ Does not shift.
❏ Excessive shift shock

EN(H4SO)-5

General Description
ENGINE (DIAGNOSTIC)

3. General Description

8) Use ECM mounting stud bolts as the grounding
point to body when measuring voltage and resistance inside the passenger compartment.

A: CAUTION
1) Airbag system wiring harness is routed near the
ECM, main relay and fuel pump relay.
CAUTION:
• All air bag system wiring harnesses and connectors are yellow. Do not use the electrical
test equipment on these circuits.
• Be careful not to damage the Airbag system
wiring harness when servicing the ECM, TCM,
main relay and fuel pump relay.
2) Never connect the battery in reverse polarity.
• The ECM will be destroyed immediately.
• The fuel injector and other part will be damaged.
3) Do not disconnect the battery terminals while the
engine is running.
A large counter electromotive force will be generated in the generator, and this voltage may damage
electronic parts such as ECM, etc.
4) Before disconnecting the connectors of each
sensor and the ECM, be sure to turn the ignition
switch to OFF.
5) Poor contact has been identified as a primary
cause of this problem. Measure the voltage or resistance of individual sensor or all electrical control
modules using a tapered pin with a diameter of less
than 0.64 mm (0.025 in). Do not insert the pin more
than 5 mm (0.20 in) into the part.
6) Remove the ECM from the located position after
disconnecting two cables on battery.
Otherwise, the ECM may be damaged.
CAUTION:
When replacing the ECM, be careful not to use
the wrong spec. ECM to avoid any damage on
the fuel injection system.
7) Connectors to each sensor in the engine compartment and the harness connectors on the engine side and body side are all designed to be
waterproof. However, it is still necessary to take
care not to allow water to get into the connectors
when washing the vehicle, or when servicing the
vehicle on a rainy day.

(A)

EN-00001

(A) Stud bolt

9) Use engine ground terminal or engine proper as
the grounding point to body when measuring voltage and resistance in the engine compartment.

EN-00153

10) Use TCM mounting stud bolts as the grounding
point to body when measuring voltage and resistance inside the passenger compartment.

(A)
EN-00154

(A) Stud bolt

11) Every MFI-related part is a precision part. Do
not drop them.
12) Observe the following cautions when installing
a radio in MFI equipped models.
CAUTION:
• The antenna must be kept as far apart as possible from the control unit. (The ECM is located
under the steering column, inside of the instrument panel lower trim panel.)

EN(H4SO)-6

General Description
ENGINE (DIAGNOSTIC)

• The antenna feeder must be placed as far
apart as possible from the ECM and MFI harness.
• Carefully adjust the antenna for correct
matching.
• When mounting a large power type radio, pay
special attention to the three items above mentioned.
• Incorrect installation of the radio may affect
the operation of the ECM.
13) Before disconnecting the fuel hose, disconnect
the fuel pump connector and crank the engine for
more than five seconds to release pressure in the
fuel system. If engine starts during this operation,
run it until it stops.
14) Problems in the electronic-controlled automatic
transmission may be caused by failure of the engine, the electronic control system, the transmission proper, or by a combination of these. These
three causes must be distinguished clearly when
performing diagnostics.
15) Diagnostics should be conducted by rotating
with simple, easy operations and proceeding to
complicated, difficult operations. The most important thing in diagnostics is to understand the customer’s complaint, and distinguish between the
three causes.
16) In AT models, do not continue the stall for more
than five seconds. (from closed throttle, fully open
throttle to stall engine speed.)
17) On the model with ABS, when performing driving test in jacked-up or lifted-up position, sometimes the warning light may be lit, but this is not a
malfunction of the system. The reason for this is the
speed difference between the front and rear
wheels. After diagnosis of engine control system,
perform the ABS memory clearance procedure of
self-diagnosis function.

B: INSPECTION
Before performing diagnostics, check the following
items which might affect engine problems:

1. BATTERY
1) Measure battery voltage and specific gravity of
electrolyte.
Standard voltage: 12 V
Specific gravity: Above 1.260
2) Check the condition of the main and other fuses,
and harnesses and connectors. Also check for
proper grounding.

2. ENGINE GROUND
Make sure the engine grounding terminal is properly connected to the engine.

EN-00153

C: NOTE
1. GENERAL DESCRIPTION
• On-board diagnosis (OBD) system detects and
indicates a fault in various inputs and outputs of the
complex electronic control. Malfunction indicator
light in the combination meter indicates occurrence
of a fault or trouble.
• Further, against such a failure or sensors as may
disable the drive, the fail-safe function is provided
to ensure the minimal driveability.
• The OBD system incorporated with the vehicles
within this engine family complies with Section
1968.1, California Code of Regulations (OBD-II
regulation). The OBD system monitors the components and the system malfunction listed in Engine
Section which affects on emissions.
• When the system decides that a malfunction occurs, malfunction indicator light illuminates. At the
same time of the malfunction indicator light illumination or blinking, the DTC and a freeze frame engine conditions are stored into on-board computer.
• The OBD system stores freeze frame engine
condition data (engine load, engine coolant temperature, fuel trim, engine speed and vehicle
speed, etc.) into on-board computer when it detects
a malfunction first.
• If the OBD system detects the various malfunctions including the fault of fuel trim or misfire, the
OBD system first stores freeze frame engine conditions about the fuel trim or misfire.
• When the malfunction does not occur again for
three consecutive driving cycles, malfunction indicator light is turned off, but DTC remains at onboard computer.
• The OBD-II system is capable of communication
with a general scan tool (OBD-II general scan tool)
formed by ISO 9141 CARB.

EN(H4SO)-7

General Description
ENGINE (DIAGNOSTIC)

• The OBD-II diagnostics procedure is different
from the usual diagnosis procedure. When troubleshooting the OBD-II models, connect Subaru Select Monitor or the OBD-II general scan tool to the
vehicle.

2. ENGINE AND EMISSION CONTROL SYSTEM
• MFI system is a system that supplies the optimum air-fuel mixture to the engine for all the various operating conditions through the use of the
latest electronic technology.
With this system fuel, which is pressurized at a constant pressure, is injected into the intake air passage of the cylinder head. The injection quantity of
fuel is controlled by an intermittent injection system
where the electro-magnetic injection valve (fuel injector) opens only for a short period of time, depending on the quantity of air required for one cycle
of operation. In actual operation, the injection quantity is determined by the duration of an electric signal applied to the fuel injector and this permits
simple, yet highly precise metering of the fuel.
• Further, all the operating conditions of the engine
are converted into electric signals, and this results
in additional features of the system, such as large
improved adaptability, easier addition of compensating element, etc.

The MFI system also has the following features:
• Reduced emission of harmful exhaust gases.
• Reduced in fuel consumption.
• Increased engine output.
• Superior acceleration and deceleration.
• Excellent engine start and warm-up performance by the correction of engine coolant temperature and intake air temperature.

3. AUTOMATIC TRANSMISSION AND
ELECTRONIC-HYDRAULIC CONTROL SYSTEM
The electronic-hydraulic control system consists of
various sensors and switches, TCM and the hydraulic controller including solenoid valves. The
system controls the transmission body including
shift control, lock-up control, overrunning clutch
control, line pressure control and shift timing control. It also controls the AWD transfer clutch. In other words, the system detects various operating
conditions from various input signals and sends
output signals to shift solenoids 1, 2 and low clutch
timing solenoid and 2-4 brake timing solenoid, line
pressure duty solenoid, lock-up duty solenoid,
transfer duty solenoid and 2-4 brake duty solenoid
(a total of eight solenoids).

D: PREPARATION TOOL
ILLUSTRATION

TOOL NUMBER
DESCRIPTION
24082AA230
CARTRIDGE
(Newly adopted tool)

REMARKS
Troubleshooting for electrical system.

ST24082AA230

22771AA030

SUBARU SELECT
MONITOR KIT

ST22771AA030

EN(H4SO)-8

Troubleshooting for electrical system.
• English: 22771AA030 (Without printer)
• German: 22771AA070 (Without printer)
• French: 22771AA080 (Without printer)
• Spanish: 22771AA090 (Without printer)

Electrical Component Location
ENGINE (DIAGNOSTIC)

4. Electrical Component Location
A: LOCATION
1. ENGINE
• CONTROL MODULE
• LHD MODEL
(1)

(3) (4)

(2)
EN-00240

• RHD MODEL
(2)

(3)

(4)

(1)
EN-00241

(1)
(2)

Engine control module (ECM)
Malfunction indicator light

(3)

Test mode connector

EN(H4SO)-9

(4)

Data link connector

Electrical Component Location
ENGINE (DIAGNOSTIC)

(1)

(2)

EN-00156

EN-00157

(3 )

EN-00158

EN(H4SO)-10

(4)

EN-00236

Electrical Component Location
ENGINE (DIAGNOSTIC)

• SENSOR

(1) (4) (2)

(3)

(8)

(5)

(7)

(6)

EN-02379

(1)
(2)
(3)

Intake air temperature sensor
Manifold absolute pressure sensor
Engine coolant temperature sensor (without AT warmer)

(4)
(5)
(6)
(7)

Throttle position sensor
Knock sensor
Camshaft position sensor
Crankshaft position sensor

EN(H4SO)-11

(8)

Engine coolant temperature sensor (with AT warmer)

Electrical Component Location
ENGINE (DIAGNOSTIC)

(2)
(1)

EN-00006

EN-00160

(3)

(4)
EN-00008

EN-00161

(5)
(6)
EN-00010

EN-00011

(7)

(8)

EN-00012

EN(H4SO)-12

EN-02380

Electrical Component Location
ENGINE (DIAGNOSTIC)

(1 )

(3 )

(2 )

(4)

EN-00162

(1)
(2)

Front oxygen (A/F) sensor
Rear oxygen sensor

(3)

Front catalytic converter

(4)

Rear catalytic converter

(2)
(1)

EN-00163

EN-00014

(4)

(3)

EN-00016

EN(H4SO)-13

EN-00164

Electrical Component Location
ENGINE (DIAGNOSTIC)

• LHD MODEL
(1)

(2)
EN-00242

• RHD MODEL
(1)

(2)
EN-00243

(1)

Fuel level sensor

(2)

Fuel sub level sensor

(1)
(2)

EN-00244

EN(H4SO)-14

EN-00246

Electrical Component Location
ENGINE (DIAGNOSTIC)

• SOLENOID VALVE, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM PARTS

(3)

(2)

(1)

(4)

EN-02399

(1)
(2)

Idle air control solenoid valve
Purge control solenoid valve

(3)

Ignition coil & ignitor ASSY

(4)

EGR Valve

(2)

(1 )

EN-00249

EN(H4SO)-15

EN-00250

Electrical Component Location
ENGINE (DIAGNOSTIC)

(3)
(4)

EN-02400

EN-00251

• LHD MODEL
(2)

(1)

(7) (6) (5) (4)

(3)
EN-00252

• RHD MODEL
(1)

(4) (3)

(2)

(7) (6) (5)
EN-00253

(1)
(2)
(3)

Inhibitor switch
Fuel pump
Main relay

(4)
(5)
(6)

Fuel pump relay
Radiator main fan relay
Radiator sub fan relay

EN(H4SO)-16

(7)

Starter

Electrical Component Location
ENGINE (DIAGNOSTIC)

(2)

(1)

EN-00254

EN-00178

(3 )
( 4)

(6)
(5)

EN-00237

(7)

EN-00181

EN(H4SO)-17

EN-00180

Electrical Component Location
ENGINE (DIAGNOSTIC)

2. TRANSMISSION
• CONTROL MODULE
• LHD MODEL

(1)

(2)
EN-00255

• RHD MODEL
(1)

(2)

EN-00256

(1)

Transmission control module
(TCM) (AT model)

(2)

AT diagnostic indicator light (AT
model)

EN(H4SO)-18

Electrical Component Location
ENGINE (DIAGNOSTIC)

(2)

EN-00183

(1)

EN-00157

• SENSOR

(3)
(2)

(1)
EN-00184

EN-00107

(4)

(5)

EN-02471

EN-00187

(6)

EN-00188

(1)
(2)

Rear vehicle speed sensor (AT
model)
Front vehicle speed sensor (MT
model)

(3)
(4)

Front vehicle speed sensor (AT
model)
Torque converter turbine speed
sensor

EN(H4SO)-19

(5)
(6)

ATF temperature sensor (AT
model)
Brake light switch

Electrical Component Location
ENGINE (DIAGNOSTIC)

• SOLENOID VALVE & SWITCH (AT model)

(5)

(4)

(3)

(2)

(6)

(1)

(7)

AT-00334

(9)

(1)
(2)
(3)

Shift solenoid valve 1
Shift solenoid valve 2
Line pressure duty solenoid

(8)

AT-00335

EN-02472

(4)
(5)
(6)

Low clutch timing solenoid
Lock-up duty solenoid
2-4 brake duty solenoid

• SOLENOID VALVE & SWITCH (MT model)

(1)

EN-00192

(1) Neutral position switch

EN(H4SO)-20

(7)
(8)
(9)

2-4 brake timing solenoid
Transfer duty solenoid
Inhibitor switch

Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTIC)

5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION

To B134

To

4 3
2 1
6 5
8 7
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
35 34
29 28 27 26
33 32 31 30
25 24

B135

3 2 1
7 6 5 4
19 18 17 16 15 14 13 12 11 10 9 8
26 25 24
28 27
21 20
23 22

To B137

To B136
3 2 1
6 5 4
17 16 15 14 13 12 11 10 9 8 7
20 19 18
24 23 22 21
26 25

2 1
4 3
13 12 11 10 9 8 7 6 5
15 14
20 19
18 17 16

EN-00258

DESCRIPTION

Signal (V)
Ignition SW ON
Engine ON
(engine OFF)
(Idling)
0
−7 — +7
0
0
0
0
0
−7 — +7
0
0
0
0
Fully closed: 0.2 — 1.0
Fully opened: 4.2 — 4.7

Connector No.

Terminal No.

B135
B135
B135
B135
B135
B135

6
17
28
7
18
28

B135

13

B135

3

5

5

—

B135

19

0

0

—

B135
B137

14
15

0
0

0 — 0.9
0

—
—

B135

19

0

0

—

B136

13

0 — 1.0

0 — 1.0

—

B136

22

0 — 1.0

0 — 1.0

—

B136

4

0 — 1.0

0 — 1.0

—

B135

12

1.0 — 1.4

1.0 — 1.4

After engine is warmed-up.

B135

19

0

0

After engine is warmed-up.

Vehicle speed signal

B137

10

0 or 5

0 or 5

Starter switch

B136

20

0

0

Signal (+)
Crankshaft posi- Signal (−)
tion sensor Shield
Signal (+)
Camshaft
position
Signal (−)
sensor
Shield
Signal
Throttle
position
sensor

Power
supply
GND
(sensor)
Signal
Rear oxyShield
gen sensor GND
(sensor)
Front oxy- Signal 1
gen (A/F)
sensor
Signal 2
heater
Rear oxygen sensor
heater signal
Engine
Signal
coolant
temperaGND
ture sen(sensor)
sor

EN(H4SO)-21

NOTE
Sensor output waveform
—
—
Sensor output waveform
—
—
—

“5” and “0” are repeatedly displayed when vehicle is driven.
Cranking: 8 — 14

Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTIC)

DESCRIPTION

Signal (V)
Ignition SW ON
Engine ON
(engine OFF)
(Idling)
ON: 10 — 13
ON: 12 — 14
OFF: 0
OFF: 0
10 — 13
12 — 14
ON: 12±0.5
OFF: 0
ON: 0
OFF: 12±0.5
5
5
2.8
2.8
0
0
10 — 13
12 — 14
10 — 13
12 — 14
10 — 13
12 — 14
5
5
0
1 — 3.4
0
1 — 3.4
10 — 13
1 — 14
10 — 13
1 — 14
10 — 13
1 — 14
10 — 13
1 — 14
—
1 — 13
—
1 — 13
—
1 — 13
—
1 — 13

Connector No.

Terminal No.

A/C switch

B136

11

Ignition switch

B136

10

MT

B136

21

AT

B136

21

B136
B135
B135
B135
B135
B135
B135
B134
B134
B134
B134
B134
B134
B134
B134
B134
B134

3
16
27
9
1
2
3
33
32
34
23
22
8
20
6
5
19

B135

2

Fuel pump relay control

B134

2

A/C relay control

B134

9

Heater cock solenoid
Radiator fan relay 1 control
Radiator fan relay 2 control
Self-shutoff control
Malfunction indicator
light
Engine speed output
Torque control 1 signal
Torque control 2 signal
Torque control cut signal
Purge control solenoid
valve
Fuel level sensor
Signal 1
Signal 2
EGR valve
Signal 3
Signal 4
AT diagnosis input signal

B134

11

B134

14

B134

13

B136

12

ON: 0.5, or less
OFF: 10 — 13
ON: 0.5, or less
OFF: 10 — 13
10 — 13
ON: 0.5, or less
OFF: 10 — 13
ON: 0.5, or less
OFF: 10 — 13
10 — 13

B134

28

—

B134
B136
B136
B136

10
1
18
15

B134

29

B135
B134
B134
B134
B134

25
18
17
16
15

B137

19

—
5
5
8
ON: 1, or less
OFF: 10 — 13
0.12 — 4.75
0 or 10 — 13
0 or 10 — 13
0 or 10 — 13
0 or 10 — 13
Less than 1←→
More than 4

Neutral
Position
Switch

Test Mode Connector
Signal
Knock
sensor
Shield
Back-up power supply
Control module power
supply
Sensor power supply
#1, #2
Ignition
control
#3, #4
#1
Fuel injec- #2
tor
#3
#4
Signal 1
Signal 2
Idle air
Signal 3
control
solenoid
Signal 4
valve
Power
supply

10 — 13

EN(H4SO)-22

NOTE
—
—
Switch is ON when gear is in
neutral position.
Switch is ON when shifted into
“P” or “N” range.
When connected: 0
—
—
Ignition switch “OFF”: 10 — 13
—
—
—
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform
Waveform

12 — 14

—

0.5, or less

—

ON: 0.5, or less
OFF: 12 — 14
12 — 14
ON: 0.5, or less
OFF: 12 — 14
ON: 0.5, or less
OFF: 12 — 14
12 — 14

—
—
—
Model with A/C

—
Light “ON”: 1, or less
—
Light “OFF”: 10 — 14
0 — 13, or more
Waveform
5
—
5
—
8
—
ON: 1, or less
—
OFF: 12 — 14
0.12 — 4.75
—
0 or 10 — 13
—
0 or 10 — 13
—
0 or 10 — 13
—
0 or 10 — 13
—
Less than 1←→
Waveform
More than 4

Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTIC)

DESCRIPTION

Signal (V)
Ignition SW ON
Engine ON
(engine OFF)
(Idling)
ON: 0
ON: 0
OFF: 10 — 13
OFF: 12 — 14
ON: 0
ON: 0
OFF: 10 — 13
OFF: 12 — 14
ON: 0
ON: 0
OFF: 10 — 13
OFF: 12 — 14

Connector No.

Terminal No.

Small light switch

B137

20

Blower fan switch

B137

13

Rear defogger switch

B137

4

B136

13

—

2.05 — 2.25

—

B136

22

—

1.75 — 1.95

—

B135

15

4.0 — 4.8

1.1 — 1.9

—

B137

6

3.15 — 3.33

3.15 — 3.33

Intake air temperature: 25°C
(75°F)

B137

16

B136
B134
B136
B134
B137
B135

19
35
26
7
14
21

Less than 1←→
More than 4
0
0
0
0
0
0

Less than 1←→
More than 4
0
0
0
0
0
0

—
—
—
—
—
—

B136

5

0

0

—

B136

16

0

0

—

Front oxygen (A/F) sensor signal 1
Front oxygen (A/F) sensor signal 2
Manifold absolute pressure sensor
Intake air temperature
sensor
SSM/GST communication line
GND (sensor)
GND (injector)
GND (ignition system)
GND (power supply)
GND (control system)
GND (oxygen sensor
heater 1)
GND (oxygen sensor
heater 2)

EN(H4SO)-23

NOTE
—
—
—

—

Engine Condition Data
ENGINE (DIAGNOSTIC)

6. Engine Condition Data
A: ELECTRICAL SPECIFICATION
Remarks
Engine load

Specification
1.6 — 2.9 (%): Idling
6.4 — 12.8 (%): 2,500 rpm Racing

Measuring condition:
• After engine is warmed-up.
• Gear position is in “N” or “P” range.
• Turn off the A/C.
• Turn all accessory switches to OFF.

EN(H4SO)-24

Transmission Control Module (TCM) I/O Signal
ENGINE (DIAGNOSTIC)

7. Transmission Control Module (TCM) I/O Signal
A: ELECTRICAL SPECIFICATION
For the electrical specification of TCM I/O signal, refer to 4AT(H4SO) section. <Ref. to 4AT(H4SO)-12,
ELECTRICAL SPECIFICATION, Transmission Control Module (TCM) I/O Signal.>

EN(H4SO)-25

Data Link Connector
ENGINE (DIAGNOSTIC)

8. Data Link Connector
A: NOTE
• This connector is used both for the Subaru Select Monitor and OBD-II general scan tools.
• Terminal No. 4 to No. 6 of the data link connector is used for the Subaru Select Monitor signal.
CAUTION:
Do not connect any scan tools other than the Subaru Select Monitor and OBD-II general scan tools,
because the circuit for the Subaru Select Monitor may be damaged.

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

EN-00037

Terminal No.
1
2
3
4
5
6
7
8

Remarks
Power supply
Empty
Empty
Empty
Empty
Line end check signal
Empty
Empty

Terminal No.
9
10
11
12
13
14
15
16

EN(H4SO)-26

Remarks
Empty
K line of ISO 9141 CARB
Empty
Ground
Ground
Empty
Empty
Empty

OBD-II General Scan Tool
ENGINE (DIAGNOSTIC)

9. OBD-II General Scan Tool
A: OPERATION
1. HOW TO USE OBD-II GENERAL SCAN
TOOL
1) Prepare a general scan tool (OBD-II general
scan tool) required by SAE J1978.
2) 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).

3) Using the OBD-II general scan tool, call up the
DTC and freeze frame data.
OBD-II general scan tool functions consist of:
(1) MODE $01: Current powertrain diagnostic
data
(2) MODE $02: Powertrain freeze frame data
(3) MODE $03: Emission-related powertrain
DTC
(4) MODE $04: Clear/Reset emission-related
diagnostic information
Read out data according to repair procedures. (For
detailed operation procedures, refer to the OBD-II
General Scan Tool Operation Manual.)
NOTE:
For details concerning DTCs, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to EN(H4SO)72, List of Diagnostic Trouble Code (DTC).>

ME-00325

2. MODE $01 (CURRENT POWERTRAIN DIAGNOSTIC DATA)
Refers to data denoting the current operating condition of analog input/output, digital input/output and/or the
powertrain system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
PID
01
03
04
05
06
07
0B
0C
0D
0E
10
11
13
14
15
1C

Data
Number of emission-related powertrain DTC and malfunction indicator light status
Fuel system control status
Calculated engine load value
Engine coolant temperature
Short term fuel trim
Long term fuel trim
Intake manifold absolute pressure
Engine speed
Vehicle speed
Ignition timing advance
Air flow rate of manifold absolute pressure sensor
Throttle valve opening angle
Check whether oxygen sensor is installed.
Oxygen sensor output voltage and short term fuel trim — bank 1 associated with oxygen sensor
Oxygen sensor output voltage and short term fuel trim — bank 2 associated with oxygen sensor
On-board diagnostic system

Unit of measure
ON/OFF
—
%
°C
%
%
kPa
rpm
km/h
°
g/sec
%
—
V and%
V and %
—

NOTE:
Refer to OBD-II general scan tool manufacturer’s instruction manual to access generic OBD-II PIDs (MODE
$01).

EN(H4SO)-27

OBD-II General Scan Tool
ENGINE (DIAGNOSTIC)

3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refers to data denoting the operating condition when trouble is sensed by the on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
PID
02
03
04
05
06
07
0B
0C
0D

Data
DTC that caused CARB required freeze frame data storage
Fuel system control status
Calculated engine load value
Engine coolant temperature
Short term fuel trim
Long term fuel trim
Intake manifold absolute pressure
Engine speed
Vehicle speed

Unit of measure
—
—
%
°C
%
%
kPa
rpm
km/h

NOTE:
Refer to OBD-II general scan tool manufacturer’s instruction manual to access freeze frame data (MODE
$02).

4. MODE $03 (EMISSION-RELATED POWERTRAIN DIAGNOSTIC TROUBLE CODES)
Refer to “Read Diagnostic Trouble Code (DTC)” for information about data denoting emission-related powertrain DTC. <Ref. to EN(H4SO)-36, Read Diagnostic Trouble Code (DTC).>

5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)
Refers to the mode used to clear or reset emission-related diagnostic information (OBD-II trouble diagnostic
information).
NOTE:
Refer to OBD-II general scan tool manufacturer’s instruction manual to clear or reset emission-related diagnostic information (MODE $04).

EN(H4SO)-28

Subaru Select Monitor
ENGINE (DIAGNOSTIC)

10.Subaru Select Monitor
A: OPERATION
1. HOW TO USE SUBARU SELECT MONITOR

CAUTION:
Do not connect the scan tools except for Subaru Select Monitor and OBD-II general scan tool.
5) Turn ignition switch to ON (engine OFF) and turn
Subaru Select Monitor switch to ON.

1) Prepare the Subaru Select Monitor kit. <Ref. to
EN(H4SO)-8, PREPARATION TOOL, General Description.>

(A)

EN-00040

(A) Power switch
EN-00038

2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge to Subaru Select Monitor.
<Ref. to EN(H4SO)-8, PREPARATION TOOL,
General Description.>

6) Using the Subaru Select Monitor, call up DTC
and data, then record them.

2. READ DIAGNOSTIC TROUBLE CODE
(DTC) FOR ENGINE (NORMAL MODE)
Refer to “Read Diagnostic Trouble Code (DTC)” for
information about how to indicate DTC. <Ref. to
EN(H4SO)-36, Read Diagnostic Trouble Code
(DTC).>

3. READ DIAGNOSTIC TROUBLE CODE
(DTC) FOR ENGINE (OBD MODE)
Refer to “Read Diagnostic Trouble Code (DTC)” for
information about how to indicate DTC. <Ref. to
EN(H4SO)-36, Read Diagnostic Trouble Code
(DTC).>
EN-00039

4) Connect the Subaru Select Monitor to data link
connector.
(1) Data link connector located in the lower portion of the instrument panel (on the driver’s
side).

ME-00325

(2) Connect the diagnosis cable to data link
connector.

EN(H4SO)-29

Subaru Select Monitor
ENGINE (DIAGNOSTIC)

4. READ CURRENT DATA FOR ENGINE. (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 engine type was displayed.
4) On the «Engine Diagnosis» display screen, select the {Current Data Display/Save}, and then press the
[YES] key.
5) On the «Data Display Menu» display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, scroll 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
Battery voltage
Vehicle speed signal
Engine speed signal
Engine coolant temperature signal
Ignition timing signal
Throttle position signal
Throttle position signal
Injection pulse width
Idle air control signal
Engine load data
Front oxygen (A/F) sensor resistance
Front oxygen (A/F) sensor output signal
Rear oxygen sensor output signal
Short term fuel trim
Knock sensor signal
Atmospheric absolute pressure signal
Intake manifold relative pressure signal
Intake manifold absolute pressure signal
A/F correction (short term fuel trim) by rear oxygen sensor
Long term whole fuel trim
Front oxygen (A/F) sensor heater current
Rear oxygen sensor heater current
Canister purge control solenoid valve duty ratio
Fuel level signal
Intake air temperature signal
Learned ignition timing
EGR signal
Ignition switch signal
Test mode connector signal
Neutral position switch signal
Air conditioning switch signal
Air conditioning compressor signal
Radiator main fan relay signal
Fuel pump relay signal
Knocking signal
Radiator sub fan relay signal
Power steering switch signal
Engine torque control signal #1
Engine torque control signal #2

Display
Battery Voltage
Meter vehicle speed
Engine speed
Engine coolant temperature
Ignition timing
Amount of intake air
Throttle Sensor Voltage
Fuel injection pulse width
ISC Steps
Engine load
A/F sensor resistance value 1
A/F sensor current value 1
Rear oxygen sensor voltage
value
A/F Compensation 1
Knock Correction
Atmospheric pressure
Mani. Relative Pressure
Intake manifold absolute pressure
A/F Compensation 3
A/F learning 1
Front O2 heater current value
Rear O2 heater current value
CPC Valve Duty Ratio
Fuel level voltage
Intake air temperature
Ignition learning value
EGR Steps
Ignition SW
Test mode signal
Neutral SW
A/C SW
A/C Compressor Signal
Radiator fan relay 1
Fuel pump relay
Knock signal
Radiator fan relay 2
Power steering SW input signal
AT coordinate request signal 1
AT coordinate request signal 2

EN(H4SO)-30

Unit of measure
V
km/h or MPH
rpm
°C or (°F)
deg
%
V
ms
STEP
%
ohm
—
V
%
deg
mmHg, kPa, inHg or psi
mmHg, kPa, inHg or psi
mmHg, kPa, inHg or psi
%
%
A
A
%
V
°C or (°F)
deg
STEP
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF

Subaru Select Monitor
ENGINE (DIAGNOSTIC)
Description
Engine torque control permission signal
Rear oxygen sensor rich signal
Starter switch signal
Idle switch signal
Crankshaft position sensor signal
Camshaft position sensor signal
Rear defogger switch signal
Blower fan switch signal
Small light switch signal
AT vehicle ID signal
A/C middle pressure switch signal

Display
AT coordinate permission signal
Rear O2 monitor
Starter SW
Soft idle SW
Crankshaft position signal
Camshaft position signal
Rear defogger SW
Blower fan SW
Light SW
AT/MT identification terminal
A/C middle pressure SW

Unit of measure
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
AT or MT
ON or OFF

NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.

EN(H4SO)-31

Subaru Select Monitor
ENGINE (DIAGNOSTIC)

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» display screen, select the {Current Data Display & Save}, and press the [YES] key.
6) On the «Data Display Menu» display screen, select the {Data Display} and press the [YES] key.
7) Using the scroll key, scroll 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
Number of DTC
Condition of malfunction indicator light
Monitoring test of misfire
Monitoring test of fuel system
Monitoring test of comprehensive component
Test of catalyst
Test of heating-type catalyst
Test of evaporative emission purge control system
Test of secondary air system
Test of air conditioning system refrigerant
Test of oxygen sensor
Test of oxygen sensor heater
Test of EGR system
Air fuel ratio control system for bank 1
Engine load data
Engine coolant temperature signal
Short term fuel trim by front oxygen (A/F) sensor
Long term fuel trim by front oxygen (A/F) sensor
Intake manifold absolute pressure signal
Engine speed signal
Vehicle speed signal
Ignition timing advance for #1 cylinder
Intake air temperature signal
Amount of intake air
Throttle position signal
Rear oxygen sensor output signal
Air fuel ratio correction by rear oxygen sensor
On-board diagnostic system
Oxygen sensor #11
Oxygen sensor #12
A/F sensor #11

Display
Number of diagnosis code
MI (MIL)
Misfire Monitoring
Fuel System Diagnosis
Component Diagnosis
Catalyst diagnosis
Heated catalyst diagnosis
Evap. purge diagnosis
Secondary air diagnosis
A/C refrigerant diagnosis
O2 sensor diagnosis
O2 heater diagnosis
EGR diagnosis
Fuel System for bank 1
Engine load
Engine coolant temperature
Short term fuel trim B1
Long term fuel trim B1
Intake manifold absolute pressure
Engine speed
Meter vehicle speed
Ignition timing adv. #1
Intake air temperature
Amount of intake air
Throttle valve angle
O2 sensor #12
Short term fuel trim #12
OBD system
O2 sensor #11
O2 sensor #12
A/F sensor #11

Unit of measure
—
ON or OFF
Complete or incomplete
Complete or incomplete
Complete or incomplete
Complete or incomplete
No support
Complete or incomplete
No support
No support
Complete or incomplete
Complete or incomplete
—
—
%
°C or (°F)
%
%
mmHg, kPa, inHg or psi
rpm
km/h or MPH
°
°C or (°F)
g/s
%
V
%
—
With support
With support
—

NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.

EN(H4SO)-32

Subaru Select Monitor
ENGINE (DIAGNOSTIC)

6. READ FREEZE FRAME 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» display screen, select the {Freeze Frame Data} and press the [YES] key.
• A list of the support data is shown in the following table.
Description
DTC of freeze frame data
Air fuel ratio control system for bank 1
Engine load data
Engine coolant temperature signal
Short term fuel trim by front oxygen (A/F) sensor
Long term fuel trim by front oxygen (A/F) sensor
Intake manifold absolute pressure signal
Engine speed signal
Vehicle speed signal

Display
Freeze frame data
Fuel system for Bank 1
Engine load
Engine coolant temperature
Short term fuel trim B1
Long term fuel trim B1
Intake manifold absolute pressure
Engine speed
Meter vehicle speed

Unit of measure
DTC
ON or OFF
%
°C or (°F)
%
%
mmHg, kPa, inHg or psi
rpm
km/h or MPH

NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.

EN(H4SO)-33

Subaru Select Monitor
ENGINE (DIAGNOSTIC)

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» display screen, select the {Current Data Display/Save}, and then press the
[YES] key.
5) On the «Data Display Menu» display screen, select the {Data & LED Display} and press the [YES] key.
6) Using the scroll key, scroll 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
Ignition switch signal
Test mode connector signal
Neutral position switch signal
Air conditioning switch signal
Air conditioning relay signal
Radiator main fan relay signal
Fuel pump relay signal
Knocking signal
Radiator sub fan relay signal

Display
Ignition SW
Test mode signal
Neutral SW
A/C SW
A/C Compressor Relay
Radiator fan relay 1
Fuel pump relay
Knock signal
Radiator fan relay 2

Message
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF

Engine torque control signal #1

AT coordinate request signal 1

ON or OFF

Engine torque control signal #2

AT coordinate request signal 2

ON or OFF

Engine torque control permission
AT coordinate permission sigsignal
nal
Front oxygen (A/F) sensor rich sigFront O2 Rich Signal #1
nal

ON or OFF
ON or OFF

Rear oxygen sensor rich signal

RrO2 monitor

ON or OFF

Starter switch signal
Idle switch signal

Starter SW
Idle Switch Signal

ON or OFF
ON or OFF

Crankshaft position sensor signal

Crankshaft position signal

ON or OFF

Camshaft position sensor signal

Camshaft position signal

ON or OFF

LED “ON” requirements
When ignition switch is ON
When test mode connector is connected.
When neutral position signal is entered.
When air conditioning switch is ON
When air conditioning relay is in function.
When radiator main fan relay is in function.
When fuel pump relay is in function.
When knocking signal is input.
When radiator sub fan relay is in function.
When engine torque control signal 1 is
entered
When engine torque control signal 2 is
entered
When engine torque control permission signal is entered.
When front oxygen (A/F) sensor mixture ratio
is rich.
When rear oxygen sensor mixture ratio is
rich.
When starter switch signal is entered.
When idle switch signal is entered.
When crankshaft position sensor signal is
input.
When camshaft position sensor signal is
entered.

NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.

EN(H4SO)-34

Subaru Select Monitor
ENGINE (DIAGNOSTIC)

8. READ CURRENT DATA FOR AT
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 {Transmission} 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 {Current Data Display & Save} and press the
[YES] key.
5) On the «Transmission Diagnosis» display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, scroll 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
Battery voltage
Rear vehicle speed sensor signal
Front vehicle speed sensor signal
Engine speed signal
ATF temperature signal
Throttle position sensor
Gear Position
Line pressure control duty ratio
Lock up clutch control duty ratio
Transfer clutch control duty ratio
Throttle position sensor power supply
Turbine revolution signal
2-4 Brake timing pressure control duty ratio
Intake manifold pressure sensor voltage
FWD switch signal
Kick down switch signal
Stop light switch signal
Anti lock brake system signal
Cruise control system signal
Neutral/Parking range signal
Reverse range signal
Drive range signal
3rd range signal
2nd range signal
1st range signal
Shift control solenoid A
Shift control solenoid B
Torque control output signal #1
Torque control output signal #2
Torque control cut signal
2-4 brake timing control solenoid valve
Low clutch timing control solenoid valve
Automatic transmission diagnosis light output signal

Display
Battery Voltage
Rear Wheel Speed
Front Wheel Speed
Engine speed
ATF Temp.
Throttle Sensor Voltage
Gear position
Line pressure duty
L/U Duty
AWD duty
Throttle sensor power supply
Turbine Revolution Speed
2-4 B Pressure Duty
Mani. Relative Voltage
FWD SW
Kick Down Switch
Stop Light SW
ABS signal
Cruise Control Signal
N/P range
R Range
D Range
3rd Range Signal
2nd Range Signal
1st Range Signal
Shift Solenoid #1
Shift Solenoid #2
Torque control output signal 1
Torque control output signal 2
Torque Control Cut Sig
2-4B Timing Solenoid
L/C timing solenoid
Diagnosis Lamp

EN(H4SO)-35

Unit of measure
V
km/h or MPH
km/h or MPH
rpm
°C or °F
V
—
%
%
%
V
rpm
%
V
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF

Read Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTIC)

11.Read Diagnostic Trouble
Code (DTC)

NOTE:
Refer to OBD-II general scan tool manufacturer’s
instruction manual to access powertrain DTC
(MODE $03).

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 engine type was displayed.
4) On the «Engine Diagnosis» screen, select the
{DTC Display}, and then press the [YES] key.
5) On the «Diagnostic Code(s) Display» screen,
select the {Current Diagnostic Code(s)} or {History
Diagnostic Code(s)}, and then press the [YES] key.
NOTE:
• For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
• For details concerning DTC, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to EN(H4SO)72, List of Diagnostic Trouble Code (DTC).>

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 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» display screen, select the
{DTC Display} and press the [YES] key.
6) Make sure DTC is shown on the screen.
NOTE:
• For detailed operation procedure, refer to the
“SUBARU SELECT MONITOR OPERATION
MANUAL”.
• For details concerning DTC, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to EN(H4SO)72, List of Diagnostic Trouble Code (DTC).>

3. OBD-II GENERAL SCAN TOOL
Refers to data denoting emission-related powertrain DTC.
For details concerning DTC, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to EN(H4SO)72, List of Diagnostic Trouble Code (DTC).>

EN(H4SO)-36

Inspection Mode
ENGINE (DIAGNOSTIC)

12.Inspection Mode
A: OPERATION
Perform the diagnosis on the “Diagnosis Trouble Codes (DTC) List” below.
Refer to the item of drive cycle when perform the diagnosis not on the “Diagnosis Trouble Codes (DTC) List”
below. <Ref. to EN(H4SO)-42, Drive Cycle.>
P0030
P0031
P0032
P0037
P0038
P0068
P0107
P0108
P0112
P0113
P0117
P0118
P0122
P0123
P0129
P0131

DTC

Item
HO2S Heater Control Circuit (Bank 1 Sensor 1)
HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
HO2S Heater Control Circuit High (Bank 1 Sensor 1)
HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
HO2S Heater Control Circuit High (Bank 1 Sensor 2)
Manifold Pressure Sensor Range/Performance
Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Intake Air Temperature Circuit Low Input
Intake Air Temperature Circuit High Input
Engine Coolant Temperature Circuit Low Input
Engine Coolant Temperature Circuit High Input
Throttle/Pedal Position Sensor/Switch “A” Circuit Low Input
Throttle/Pedal Position Sensor/Switch “A” Circuit High Input
Barometric Pressure Too Low
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

P0132

O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

P0327
P0328
P0335
P0336
P0340
P0341
P0458
P0462
P0463
P0502
P0503
P0512
P0513
P0519
P0565
P0604
P0703
P0705
P0710
P0716
P0720
P0726
P0731
P0732
P0733

Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
Crankshaft Position Sensor “A” Circuit
Crankshaft Position Sensor “A” Circuit Range/Performance
Camshaft Position Sensor “A” Circuit (Bank 1 or Single Sensor)
Camshaft Position Sensor “A” Circuit Range/Performance (Bank 1 or Single Sensor)
Evaporative Emission Control System Purge Control Valve Circuit Low
Fuel Level Sensor Circuit Low Input
Fuel Level Sensor Circuit High Input
Vehicle Speed Sensor Circuit Low Input
Vehicle Speed Sensor Intermittent/Erratic/High
Starter Request Circuit
Incorrect Immobilizer Key
Idle Control System Malfunction (Fail-Safe)
Cruise Control On Signal
Internal Control Module Random Access Memory (RAM) Error
Torque Converter/Brake Switch “B” Circuit
Transmission Range Sensor Circuit (PRNDL Input)
Transmission Fluid Temperature Sensor Circuit
Torque converter turbine speed sensor
AT Vehicle Speed Sensor Circuit Malfunction
Engine Speed Input Circuit Malfunction
Gear 1 Incorrect Ratio
Gear 2 Incorrect Ratio
Gear 3 Incorrect Ratio

EN(H4SO)-37

Inspection Mode
ENGINE (DIAGNOSTIC)
DTC
P0734
P0741
P0743
P0748
P0753
P0758
P0771
P0778
P0785
P0851
P0852
P0864
P0865
P0866
P1110
P1111
P1492
P1493
P1494
P1495
P1496
P1497
P1498
P1499
P1510
P1511
P1512
P1513
P1514
P1515
P1516
P1517
P1518
P1560
P1570
P1571
P1572
P1574
P1576
P1577
P1698
P1699
P1700
P1711
P1712

Item
Gear 4 Incorrect Ratio
Torque Converter Clutch Circuit Performance or Stuck Off
Torque Converter Clutch Circuit Electrical
Pressure Control Solenoid “A” Electrical
Shift Solenoid “A” Electrical
Shift Solenoid “B” Electrical
Low clutch timing solenoid
Pressure Control Solenoid “B” Electrical
Shift/Timing Solenoid
Neutral Switch Input Circuit Low
Neutral Switch Input Circuit High
TCM Communication Circuit Range/Performance
TCM Communication Circuit Low
TCM Communication Circuit Low
Atmospheric Pressure Sensor Circuit Malfunction (Low Input)
Atmospheric Pressure Sensor Circuit Malfunction (High Input)
EGR Valve Signal #1 Circuit Malfunction (Low Input)
EGR Valve Signal #1 Circuit Malfunction (High Input)
EGR Valve Signal #2 Circuit Malfunction (Low Input)
EGR Valve Signal #2 Circuit Malfunction (High Input)
EGR Valve Signal #3 Circuit Malfunction (Low Input)
EGR Valve Signal #3 Circuit Malfunction (High Input)
EGR Valve Signal #4 Circuit Malfunction (Low Input)
EGR Valve Signal #4 Circuit Malfunction (High Input)
ISC Solenoid Valve Signal #1 Circuit Malfunction (Low Input)
ISC Solenoid Valve Signal #1 Circuit Malfunction (High Input)
ISC Solenoid Valve Signal #2 Circuit Malfunction (Low Input)
ISC Solenoid Valve Signal #2 Circuit Malfunction (High Input)
ISC Solenoid Valve Signal #3 Circuit Malfunction (Low Input)
ISC Solenoid Valve Signal #3 Circuit Malfunction (High Input)
ISC Solenoid Valve Signal #4 Circuit Malfunction (Low Input)
ISC Solenoid Valve Signal #4 Circuit Malfunction (High Input)
Starter Switch Circuit Low Input
Back-Up Voltage Circuit Malfunction
Antenna
Reference Code Incompatibility
EGI — Immobilizer Communication
Key — Communication Failure
EGI Control Module EEPROM
IMM Control Module EEPROM
Engine Torque Control Cut Signal Circuit Malfunction (Low Input)
Engine Torque Control Cut Signal Circuit Malfunction (High Input)
Throttle Position Sensor Circuit Malfunction For AT
Engine Torque Control Signal #1 Circuit Malfunction
Engine Torque Control Signal #2 Circuit Malfunction

EN(H4SO)-38

Inspection Mode
ENGINE (DIAGNOSTIC)

1. PREPARATION FOR THE INSPECTION
MODE
1) Check battery voltage is more than 12 V and fuel
remains half [20 — 402 (5.3 — 10.6 US gal, 4.4 —
8.8 Imp gal)].
2) Lift-up the vehicle using a garage jack and place
it on rigid racks or drive the vehicle onto free rollers.
WARNING:
• Before lifting-up the vehicle, ensure parking
brakes are applied.
• Do not use a pantograph jack in place of a rigid rack.
• Secure a rope or wire to the front or rear towing hooks to prevent the lateral runout of front
wheels.
• Do not abruptly depress/release clutch pedal
or accelerator pedal during works even when
the engine is operating at low speeds since this
may cause vehicle to jump off free rollers.
• In order to prevent the vehicle from slipping
due to vibration, do not place any wooden
blocks or similar items between the rigid racks
and the vehicle.
• Since the rear wheels will also rotate, do not
place anything near them. Also, make sure that
nobody goes in front of the vehicle.

2. SUBARU SELECT MONITOR
1) After clearing the memory, check for any remaining unresolved trouble data. <Ref. to EN(H4SO)44, Clear Memory Mode.>
2) Idle the engine.
3) Prepare the Subaru Select Monitor kit. <Ref. to
EN(H4SO)-8, PREPARATION TOOL, General Description.>

EN-00038

4) Connect the diagnosis cable to Subaru Select
Monitor.
5) Insert the cartridge to Subaru Select Monitor.
<Ref. to EN(H4SO)-8, PREPARATION TOOL,
General Description.>

EN-00039

6) Connect the test mode connector (A) located at
the lower portion of instrument panel (on the driver’s side).

(A)

(A)

(B)

EN-00041

(A) Rigid rack
(B) Free rollers

EN(H4SO)-39

EN-00238

Inspection Mode
ENGINE (DIAGNOSTIC)

7) Connect the Subaru Select Monitor to data link
connector.
(1) Connect the Subaru Select Monitor to data
link connector located in the lower portion of the
instrument panel (on the driver’s side).

• For details concerning DTCs, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to EN(H4SO)72, List of Diagnostic 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 diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis function.

3. OBD-II GENERAL SCAN TOOL

ME-00325

(2) Connect the diagnosis cable to data link
connector.

1) After clearing the memory, check for any remaining unresolved trouble data. <Ref. to EN(H4SO)44, Clear Memory Mode.>
2) Idle the engine.
3) Connect the test mode connector (A) located at
the lower portion of instrument panel (on the driver’s side).

CAUTION:
Do not connect the scan tools except for Subaru Select Monitor and OBD-II general scan tool.
8) Turn ignition switch to ON (engine OFF) and turn
Subaru Select Monitor switch to ON.

(A)

(A)

EN-00238

4) Connect the OBD-II general scan tool to its data
link connector in the lower portion of the instrument
panel lower panel (on the driver’s side).
EN-00040

CAUTION:
Do not connect the scan tools except for Subaru Select Monitor and OBD-II general scan tool.

(A) Power switch

9) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
10) On the «System Selection Menu» display
screen, select the {Engine} and press the [YES]
key.
11) Press the [YES] key after the information of engine type was displayed.
12) On the «Engine Diagnosis» screen, select the
{D Check} and press the [YES] key.
13) When the “Perform D Check?” is shown on the
screen, press the [YES] key.
14) Perform subsequent procedures as instructed
on the display screen.
• If trouble still remains in the memory, the corresponding DTC appears on the display screen.
NOTE:
• For detailed operation procedure, refer to the
“SUBARU SELECT MONITOR OPERATION
MANUAL”.

ME-00325

5) 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 engine. (MT model)
6) Using the selector lever or shift lever, turn the “P”
range switch and the “N” range switch to ON.

EN(H4SO)-40

Inspection Mode
ENGINE (DIAGNOSTIC)

7) Depress the brake pedal to turn the brake switch
ON. (AT model)
8) Keep the engine speed in the 2,500 — 3,000
rpm range for 40 seconds.
9) 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).
NOTE:
• On AWD vehicles, 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 diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.
10) Using the OBD-II general scan tool, check
DTC(s) and record the result(s).
NOTE:
• For detailed operation procedures, refer to the
OBD-II General Scan Tool Operation Manual.
• For details concerning DTCs, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to EN(H4SO)72, List of Diagnostic Trouble Code (DTC).>

EN(H4SO)-41

Drive Cycle
ENGINE (DIAGNOSTIC)

13.Drive Cycle
A: OPERATION
There are three driving patterns on diagnosis. Following trouble can be diagnosed with driving specified patterns. After repair the following trouble, be
sure to check that the trouble is cleared correctly by
the driving specified patterns.

1. PREPARATION FOR DRIVE CYCLE
1) Check battery voltage is more than 12 V and fuel
remains half [20 — 402 (5.3 — 10.6 US gal, 4.4 —
8.8 Imp gal)].

2) After clearing the memory, check for any remaining unresolved trouble data. <Ref. to EN(H4SO)44, Clear Memory Mode.>
3) Separate the test mode connector.
NOTE:
• Be sure to perform the diagnosis after idling from
starting the cooled engine except when the engine
coolant temperature is specified.
• Perform the diagnosis twice when the DTC is
marked with *. After the completion of first diagnosis, stop the engine and perform the second diagnosis on same condition.

2. DRIVE THE VEHICLE 20 MINUTES AT THE SPEED OF 80 KM/H (50 MPH), AND THEN IDLE
THE ENGINE 1 MINUTE.
DTC
*P0030
*P0111
*P0125
*P0130
*P0133
*P0420
P0459
*P0461
*P0464
*P1137

Item
HO2S Heater Control Circuit (Bank 1 Sensor 1)
Intake Air Temperature Sensor Circuit Range/Performance Problem
Insufficient coolant temperature for closed loop
fuel control
O2 Sensor Circuit (Bank 1 Sensor 1)

On condition
—
Engine coolant temperature at start is less than 30°C (86°F)
Engine coolant temperature at start is less than 20°C (68°F)

O2 Sensor Circuit Slow Response (Bank 1 Sensor
1)
Catalyst System Efficiency Below Threshold
(Bank 1)
Evaporative Emission Control System Purge Control Valve Circuit High
Fuel Level Sensor Circuit Range/Performance
Fuel Level Sensor Circuit Intermittent
O2 Sensor Circuit (Bank 1 Sensor 1)

—
—
—
—
—
—
—

3. 10 MINUTES IDLING
NOTE:
Drive the vehicle more than 4 km/h (6 MPH) before diagnosis.
DTC
*P0483
*P0506
*P0507

Item
Cooling Fan Rationality Check
Idle Control System RPM Lower Than Expected
Idle Control System RPM Higher Than Expected

EN(H4SO)-42

On condition
—
—
—

Drive Cycle
ENGINE (DIAGNOSTIC)

4. DRIVE THE VEHICLE WITH FOLLOWING DRIVE PATTERNS
(1)

96 (60)

65 (40)

0
50

150

100

(2)
EN-00195

(A)
(B)
(C)

(1)

Run the engine at idle for a
minute.
Accelerate the vehicle to 97 km/h
(60 MPH) within 20 seconds.
Drive the vehicle at 97 km/h (60
MPH) for 20 seconds.

(D)

Vehicle speed km/h (MPH)

(2)

DTC
*P0121

(E)

Slowdown the vehicle to 64 km/h
(40 MPH) with throttle fully closed
condition.
Drive the vehicle at 64 km/h (40
MPH) for 10 seconds.

(F)
(G)

Accelerate the vehicle to 97 km/h
(60 MPH) within 10 seconds.
Stop the vehicle with throttle fully
closed condition.

Seconds

*P0139

Item
Throttle/Pedal Position Sensor/Switch “A” Circuit Range/Performance
O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)

*P0171
*P0172
*P0301
*P0302
*P0303
*P0304
*P0400

System too Lean (Bank 1)
System too Rich (Bank 1)
Cylinder 1 Misfire Detected
Cylinder 2 Misfire Detected
Cylinder 3 Misfire Detected
Cylinder 4 Misfire Detected
Exhaust Gas Recirculation Flow

On condition
—
—
—
—
—
—
—
—
—

EN(H4SO)-43

Clear Memory Mode
ENGINE (DIAGNOSTIC)

14.Clear Memory Mode

3. OBD-II GENERAL SCAN TOOL

A: OPERATION

For clear memory procedures using the OBD-II
general scan tool, refer to the OBD-II General Scan
Tool Instruction Manual.
After the memory has been cleared, the idle air
control solenoid valve must be initialized. To do
this, turn the ignition switch to the ON position. Wait
3 seconds before starting the engine.

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 engine type was displayed.
4) On the «Engine Diagnosis» display screen, select the {Memory Clear} and press the [YES] key.
5) When the “Done” and “Turn Ignition Switch OFF”
are shown on the display screen, turn the ignition
switch to OFF and then Subaru Select Monitor
switch to OFF.
NOTE:
• After the memory has been cleared, the idle air
control solenoid valve must be initialized. To do
this, turn the ignition switch to the ON position. Wait
3 seconds before starting the engine.
• For detailed operation procedure, refer to the
“SUBARU 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 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» 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:
• After the memory has been cleared, the idle air
control solenoid valve must be initialized. To do
this, turn the ignition switch to the ON position. Wait
3 seconds before starting the engine.
• For detailed operation procedure, refer to the
“SUBARU SELECT MONITOR OPERATION
MANUAL”.

EN(H4SO)-44

Compulsory Valve Operation Check Mode
ENGINE (DIAGNOSTIC)

15.Compulsory Valve Operation
Check Mode

5) Connect the Subaru Select Monitor to data link
connector located in the lower portion of the instrument panel (on the driver’s side).

A: OPERATION
1) Prepare the Subaru Select Monitor kit. <Ref. to
EN(H4SO)-8, PREPARATION TOOL, General Description.>

ME-00325

EN-00038

2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge to Subaru Select Monitor.
<Ref. to EN(H4SO)-8, PREPARATION TOOL,
General Description.>

CAUTION:
Do not connect the scan tools except for Subaru Select Monitor and OBD-II general scan tool.
6) Turn ignition switch to ON (engine OFF) and turn
Subaru Select Monitor switch to ON.
(A)

EN-00040

(A) Power switch
EN-00039

4) Connect the test mode connector (A) located at
the lower portion of glove box.

(A )

EN-00238

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 engine type was displayed.
10) On the «Engine Diagnosis» display screen, select the {System Operation Check Mode} and press
the [YES] key.
11) On the «System Operation Check Mode» display screen, select the {Actuator ON/OFF Operation} and press the [YES] key.
12) Select the desired compulsory actuator on the
«Actuator ON/OFF Operation» display screen and
press the [YES] key.
13) Pressing the [NO] key completes the compulsory valve operation check mode. The display will
then return to the «Actuator ON/OFF Operation»
screen.

EN(H4SO)-45

Compulsory Valve Operation Check Mode
ENGINE (DIAGNOSTIC)

• A list of the support data is shown in the following
table.
Description
Compulsory fuel pump relay operation check
Compulsory radiator fan relay
operation check
Compulsory air conditioning relay
operation check
Compulsory purge control solenoid valve operation check

Display
Fuel Pump
Radiator Fan Relay
A/C Compressor Relay
CPC Solenoid

NOTE:
• “EGR solenoid” is not indicated but EGR solenoid valve is installed to the vehicle.
• The following parts will be displayed but not functional because vehicle are not equipped with them.
Display
ASV Solenoid
FICD Solenoid
Pressure switching solenoid 1
Pressure switching solenoid 2
PCV Solenoid
Vent Control Solenoid
Atmospheric pressure switching solenoid

• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MANUAL.

EN(H4SO)-46

Malfunction Indicator Light
ENGINE (DIAGNOSTIC)

16.Malfunction Indicator Light
A: PROCEDURE
1. Activation of malfunction indicator light. <Ref. to EN(H4SO)-47, ACTIVATION OF MALFUNCTION INDICATOR LIGHT, Malfunction Indicator Light.>
↓
2. Check that the malfunction indicator light does not come on. <Ref. to EN(H4SO)-49, MALFUNCTION INDICATOR LIGHT
DOES NOT COME ON, Malfunction Indicator Light.>
↓
3. Check that the malfunction indicator light does not go off. <Ref. to EN(H4SO)-52, MALFUNCTION INDICATOR LIGHT DOES
NOT GO OFF., Malfunction Indicator Light.>
↓
4. Check that the malfunction indicator light does not blink. <Ref. to EN(H4SO)-53, MALFUNCTION INDICATOR LIGHT DOES
NOT BLINK., Malfunction Indicator Light.>
↓
5. Check that the malfunction indicator light remains blinking. <Ref. to EN(H4SO)-55, MALFUNCTION INDICATOR LIGHT
REMAINS BLINKING., Malfunction Indicator Light.>

B: ACTIVATION OF MALFUNCTION
INDICATOR LIGHT
1) When the ignition switch is turned to ON (engine
off), the malfunction indicator light (1) in the combination meter illuminates.

2) After starting the engine, the malfunction indicator light goes out. If it does not, either the engine or
the emission control system is malfunctioning.

NOTE:
If the malfunction indicator light does not illuminate,
perform the diagnosis of malfunction indicator light
circuit or the combination meter circuit. <Ref. to
EN(H4SO)-49,
MALFUNCTION
INDICATOR
LIGHT DOES NOT COME ON, Malfunction Indicator Light.>

(1)
(3)
(4)
(2)
(3)
(4)
(5)
(6)
EN-01679

(1)
(2)
(3)
(4)
(5)
(6)

(1)

EN-00950

EN(H4SO)-47

No faulty
Trouble occurs
ON
OFF
Ignition switch ON
Engine start

Malfunction Indicator Light
ENGINE (DIAGNOSTIC)

3) If the diagnosis system detects a misfire which
could damage the catalyst, the malfunction indicator light will blink at a cycle of 1 Hz.
(1)
(2)
(3)
(4)
(6)
(5)
EN-01680

(1)
(2)
(3)
(4)
(5)
(6)

ON
OFF
Ignition switch ON
Engine start
Misfire start
1 second

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)
(2)
(4)

(3)

EN-01681

(1)
(2)
(3)
(4)

ON
OFF
Ignition switch ON
1 second

EN(H4SO)-48

Malfunction Indicator Light
ENGINE (DIAGNOSTIC)

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 ON (engine OFF), malfunction indicator light does not come on.
WIRING DIAGRAM:
B72

IGNITION
SWITCH

BATTERY
SBF-4

No.14
4

LHD

SBF-1

1

RHD
B38

5

16

B37

i3

i2

LHD

RHD

LHD

RHD

B9
A1

COMBINATION
METER
A: i12

i3
17

B38

13

i3

B: i10

B38

LHD

28

RHD

B134 ECM

B:

B72

B134

1 2
3 4

1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25
26 27 28 29
30 31 32 33
34 35

i10

B37

1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

1 2 3 4 5
6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24

B38

1 2 3 4
5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 27 28 29 30 31 32

A:

i12

1 2 3
4 5 6
7 8 9 10 11 12 13 14

EN-00259

EN(H4SO)-49