Subaru Legacy IV (2008 year). Manual - part 107

EN(H4SO)(diag)-31

General Scan Tool

ENGINE (DIAGNOSTICS)

3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)

Refer 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.

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

4. MODE $03 (EMISSION-RELATED POWERTRAIN DTC)

Refer to “List of Diagnostic Trouble Code (DTC)” for information about data denoting emission-related pow-
ertrain DTC. <Ref. to EN(H4SO)(diag)-80, List of Diagnostic Trouble Code (DTC).>

5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)

Refer to the mode used to clear or reset emission-related diagnostic information (OBD-II trouble diagnostic
information).

NOTE:
Refer to general scan tool manufacturer’s instruction manual to clear the emission-related diagnostic infor-
mation (MODE $04).

PID

Data

Unit of measure

$02

DTC that caused the freeze frame data storage required by CARB

 — 

$03

Fuel system control status

 — 

$04

Calculated engine load value

%

$05

Engine coolant temperature

°C

$06

Short term fuel trim (Bank 1 Sensor 1)

%

$07

Long term fuel trim (Bank 1 Sensor 1)

%

$0B

Intake manifold absolute pressure

kPa

$0C

Engine speed

rpm

$0D

Vehicle speed

MPH

$0E

Ignition timing advance

°

$0F

Intake air temperature

°C

$10

Air flow rate from the mass air flow sensor

g/s

$11

Throttle valve absolute opening angle

%

$13

Check whether oxygen sensor is installed.

 — 

$15

Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor (Bank 1 Sensor 2)

V and %

$1C

Supporting OBD system

 — 

$1F

Elapsed time after starting the engine

sec

$2C

Target EGR

%

$2D

EGR deviation

%

$2E

Evaporative purge

%

$2F

Fuel level

%

$32

Fuel tank pressure

Pa

$33

Atmospheric pressure

kPa

$42

ECM power supply voltage

V

$43

Absolute load

%

$44

A/F target lambda

 — 

$45

Relative throttle opening angle

%

$46

Ambient temperature

°C

$47

Absolute throttle opening angle 2

%

$49

Absolute accelerator opening angle 1

%

$4A

Absolute accelerator opening angle 2

%

$4C

Target throttle opening angle

%

EN(H4SO)(diag)-32

General Scan Tool

ENGINE (DIAGNOSTICS)

6. MODE $06

Refer to test value of troubleshooting and data of test limit indicated on the support data bit sequence table.
A list of the support data is shown in the following table.

7. MODE $07

Refer to the data of DTC (pending code) for troubleshooting result about emission in the first time.

8. MODE $09

Refer to data of vehicle specification (V.I.N., calibration ID, diagnosis frequency etc.).

OBDMID

TID

SID

Diagnostic item

$01

$81

$0A

A/F sensor continuity abnormal (Bank 1 Sensor 1)

$82

$8D

$83

$14

$84

$1E

A/F sensor range abnormal (Bank 1 Sensor 1)

$85

$1E

$86

$20

A/F sensor response abnormal (Bank 1 Sensor 1)

$02

$87

$0B

Oxygen sensor circuit abnormal (Bank 1 Sensor 2)

$88

$0B

$07

$0B

Oxygen sensor drop abnormal (Bank 1 Sensor 2)

$08

$0B

$A5

$0B

$05

$10

Oxygen sensor response abnormal (Bank 1 Sensor 2)

$06

$10

$21

$89

$20

Catalyst deterioration diagnosis (Bank 1)

$31

$8A

$FD

EGR system diagnosis

$39

$93

$FE

Evaporative emission control system (Cap off)

$3B

$94

$FE

Evaporative emission control system (0.04 inch leak)

$95

$FE

$3C

$96

$FE

Evaporative emission control system (0.02 inch leak)

$97

$FE

$3D

$98

$FE

Evaporative emission control system (Purge flow)

$41

$99

$24

A/F sensor heater abnormal (Bank 1 Sensor 1)

$9A

$24

$9B

$14

A/F sensor heater characteristics abnormal (Bank 1 Sensor 1)

$42

$9C

$24

Oxygen sensor heater abnormal (Bank 1 Sensor 1)

$9D

$24

$A1

$0B

$24

Misfire monitoring (All cylinders)

$0C

$24

$A2

$0B

$24

Misfire monitoring (#1 cylinder)

$0C

$24

$A3

$0B

$24

Misfire monitoring (#2 cylinder)

$0C

$24

$A4

$0B

$24

Misfire monitoring (#3 cylinder)

$0C

$24

$A5

$0B

$24

Misfire monitoring (#4 cylinder)

$0C

$24

EN(H4SO)(diag)-33

Subaru Select Monitor

ENGINE (DIAGNOSTICS)

9. Subaru Select Monitor

A: OPERATION

1. HOW TO USE THE SUBARU SELECT 
MONITOR

1) Prepare the Subaru Select Monitor kit. <Ref. to
EN(H4SO)(diag)-7, PREPARATION TOOL, Gen-
eral Description.>

2) Prepare PC with Subaru Select Monitor in-
stalled.
3) Connect the USB cable between SDI (Subaru
Diagnosis Interface) and USB port on the personal
computer (dedicated port for the Subaru Select
Monitor).

NOTE:
The dedicated port for the Subaru Select Monitor
means the USB port which was used to install the
Subaru Select Monitor.
4) Connect the diagnosis cable to SDI.
5) Connect SDI to data link connector located in the
lower portion of the instrument panel (on the driv-
er’s side).

CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and general scan tool.
6) Start the PC.
7) Turn the ignition switch to ON (engine OFF) and
run the “PC application for Subaru Select Monitor”.
8) Call up DTC and data, then record them.

NOTE:
For detailed operation procedures, refer to the “PC
application help for Subaru Select Monitor”.

EN-05692

EN-02533

EN(H4SO)(diag)-34

Subaru Select Monitor

ENGINE (DIAGNOSTICS)

2. READ CURRENT DATA FOR ENGINE (NORMAL MODE)

1) On the «Main Menu» display screen, select the {Each System Check}.
2) On the «System Selection Menu» display screen, select the {Engine Control System}.
3) Click the [OK] button after the information of engine type has been displayed.
4) On the «Engine Diagnosis» display screen, select the {Current Data Display & Save}.
5) On the «Current Data Display & Save» display screen, select the {Normal sampling}.
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.

Contents

Display

Unit of measure

Note (at idling)

Engine load

Engine Load

%

21.0%

Engine coolant temperature signal

Coolant Temp.

°C or °F

85°C or 185°F or more 

(after warm up)

A/F correction 1

A/F Correction #1

%

–0.8%

A/F learning 1

A/F Learning #1

%

0.0%

Intake manifold absolute pressure

Mani. Absolute Pressure

mmHg, kPa, 

inHg or psig

200 — 300 mmHg, 

26.7 — 40 kPa, 

7.8 — 11.8 inHg or 

3.8 — 5.8 psig

Engine speed signal

Engine Speed

rpm

700 rpm (Agree with the 

tachometer indication)

Meter vehicle speed signal

Vehicle Speed

km/h or MPH

0 km/h or 0 MPH 

(at parking)

Ignition timing signal

Ignition Timing

deg

14 — 16 deg

Intake air temperature signal

Intake Air Temp.

°C or °F

(Ambient air temperature)

Intake air amount

Mass Air Flow

g/s or lb/m

2.5 g/s or 0.33 lb/m

Throttle opening angle signal

Throttle Opening Angle

%

2.0%

Rear oxygen sensor voltage

Rear O2 Sensor

V

0.1 — 0.7 V

Battery voltage

Battery Voltage

V

12 — 14 V

Mass air flow voltage

Air Flow Sensor Voltage

V

1.26 V

Injection 1 pulse width

Fuel Injection #1 Pulse

ms

2.82 ms

Atmospheric pressure signal

Atmosphere Pressure

mmHg, kPa, 

inHg or psig

(Atmospheric pressure)

Intake manifold relative pressure

Mani. Relative Pressure

mmHg, kPa, 

inHg or psig

(Air intake absolute pres-

sure – Atmospheric 

pressure)

Ignition timing learning value

Learned Ignition Timing

deg

0 deg

Acceleration opening angle signal

Accel. Opening Angle

%

0.0%

Fuel temperature signal

Fuel Temp.

°C or °F

+20°C or +68°F

Purge control solenoid duty ratio

CPC Valve Duty Ratio

%

0 — 3%

Number of EGR steps

No. of EGR steps

STEP

0 STEP

A/F sensor current value 1

A/F Sensor #1 Current

mA

–0.2 — 0.2 mA

A/F sensor resistance value 1

A/F Sensor #1 Resistance

:

32

:

A/F Sensor # 1

A/F Sensor #1

 — 

1.0

A/F correction 3

A/F Correction #3

%

0.3%

A/F learning 3

A/F Learning #3

%

0.00%

Throttle motor duty

Throttle Motor Duty

%

–15%

Throttle power supply voltage

Throttle Motor Voltage

V

(Battery voltage)

Sub throttle sensor voltage

Sub-Throttle Sensor

V

1.52 V

Main throttle sensor voltage

Main-Throttle Sensor

V

0.66 V

Sub accelerator sensor voltage

Sub-Accelerator Sensor

V

0.68 V

Main acceleration sensor voltage

Main-Accelerator Sensor

V

0.68 V

Memory vehicle speed

Memorized Cruise Speed

km/h or MPH

0 km/h or 0 MPH

Fuel level sensor signal

Fuel level resistance

:

2 — 96 

: