EN(H6DO)(diag)-18
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Manifold absolute pressure sen-
sorB134 6 3.5 — 4.8 1.1 — 1.9 —
Air flow sensor
Signal B135 26 0.74 0.3 — 4.5 —
Shield B135 35 0 0 —
Ground B135 34 0 0 —
Intake air temperature sensor B135 18 3.15 — 3.33 3.15 — 3.33Intake air tempera-
ture 25°C (75°F)
Fr o nt ox yg e n ( A / F)
sensor RH
Signal (+) B135 9 2.8 — 3.2 2.8 — 3.2 —
Signal (–) B135 8 2.4 — 2.7 2.4 — 2.7 —
Shield B135 1 0 0 —
Fr o nt ox yg e n ( A / F)
sensor heater RH
Signal 1 B136 3 12 — 14 — Waveform
Signal 2 B136 2 12 — 14 — Waveform
Fr o nt ox yg e n ( A / F)
sensor LH
Signal (+) B135 11 2.8 — 3.2 2.8 — 3.2 —
Signal (–) B135 10 2.4 — 2.7 2.4 — 2.7 —
Shield B135 1 0 0 —
Fr o nt ox yg e n ( A / F)
sensor heater LH
Signal 1 B135 7 12 — 14 — Waveform
Signal 2 B135 6 12 — 14 — Waveform
Rear oxygen sen-
sor RH
Signal B135 4 0 0 — 0.9 —
Shield B135 1 0 0 —
Rear oxygen sensor heater RH
signalB136 4 12 — 14 — Waveform
Rear oxygen sen-
sor LH
Signal B135 15 0 0 — 0.9 —
Shield B135 1 0 0 —
Rear oxygen sensor heater LH
signalB136 5 12 — 14 — Waveform
Immobilizer communication 1 B136 26 10 10 —
Immobilizer communication 2 B136 34 10 10 —
Fuel pump control
unit
Diagnosis
signalB135 33 10 — 13 13 — 14 —
Control B136 12 0 0 or 5 —
Brake switch 1 B135 20
When brake pedal is
depressed: 0
When brake pedal is
released: 10 — 13
When brake pedal is
depressed: 0
When brake pedal is
released: 13 — 14
—
Brake switch 2 B135 28
When brake pedal is
depressed: 10 — 13
When brake pedal is
released: 0
When brake pedal is
depressed: 13 — 14
When brake pedal is
released: 0
—
Cruise control command switch B135 24
When operating
nothing: 3.5 — 4.5
When operating
RES/ACC: 2.5 — 3.5
When operating SET/
COAST: 0.5 — 1.5
When operating
CANCEL: 0 — 0.5
When operating
nothing: 3.5 — 4.5
When operating
RES/ACC: 2.5 — 3.5
When operating SET/
COAST: 0.5 — 1.5
When operating
CANCEL: 0 — 0.5
—
Cruise control main switch B135 12ON: 0
OFF: 5
ON: 0
OFF: 5—
Oil flow control sole-
noid valve RH
Signal (+) B137 17 0 0.6 —
Signal (–) B137 16 0 0 —
Oil flow control sole-
noid valve LH
Signal (+) B137 15 0 0.6 —
Signal (–) B137 14 0 0 —
DescriptionConnector
No.
Te r m i n a l
No.
Signal (V)
ReferenceIgnition SW ON
(engine OFF)
Engine ON
(idling)
EN(H6DO)(diag)-19
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Oil switching sole-
noid valve RH
Signal (+) B137 25 0 1.9 —
Signal (–) B137 24 0 0 —
Oil switching sole-
noid valve LH
Signal (+) B137 31 0 1.9 —
Signal (–) B137 30 0 0 —
Oil temperature sensor signal B134 23 1.0 — 1.4 1.0 — 1.4After engine is
warmed-up.
Va r i a b l e va l v e l i f t d i a g n o s i s o i l
pressure switch RHB134 31 0 0 —
Va r i a b l e va l v e l i f t d i a g n o s i s o i l
pressure switch LHB134 32 0 0 —
Generator control B136 10 0 — 6.5 0 — 6.5 —
SSM communication B136 161 or less ←→ 4 or
more
1 or less ←→ 4 or
more—
Fuel tank pressure sensor B135 32 2.3 2.7 —
Drain valve B136 17ON: 1 or less
OFF: 10 — 13
ON: 1 or less
OFF: 13 — 14—
Fuel temperature sensor B135 17 2.5 — 3.8 2.5 — 3.8Ambient tempera-
ture: 25°C (75°F)
CAN communication line (+) B136 27More than 2.0 ←→
Less than 4.5
More than 2.0 ←→
Less than 4.5—
CAN communication (–) B136 35More than 0.5 ←→
Less than 3.0
More than 0.5 ←→
Less than 3.0—
Ground (injector system 1) B137 26 0 0 —
Ground (injector system 2) B137 6 0 0 —
Ground (engine 1) B134 5 0 0 —
Ground (engine 2) B137 7 0 0 —
Ground (engine 3) B137 2 0 0 —
Ground (engine 4) B137 1 0 0 —
Ground (engine 5) B137 3 0 0 —
Ground (engine 6) B134 3 0 0 —
Ground (body) B136 6 0 0 —
DescriptionConnector
No.
Te r m i n a l
No.
Signal (V)
ReferenceIgnition SW ON
(engine OFF)
Engine ON
(idling)
EN(H6DO)(diag)-23
General Scan Tool
ENGINE (DIAGNOSTICS)
2. MODE $01 (CURRENT POWERTRAIN DIAGNOSTIC DATA)
Refer to data denoting the current operating condition of analog input/output, digital input/output or the pow-
ertrain 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 operation manual to access generic OBD-II PIDs (MODE $01).
PID Data Unit of measure
01 Number of emission-related powertrain DTC and malfunction indicator light status ON/OFF
03 Fuel system control status—
04 Calculated engine load value%
05 Engine coolant temperature°C
06 Short term fuel trim (Bank 1)%
07 Long term fuel trim (Bank 1)%
08 Short term fuel trim (Bank 2)%
09 Long term fuel trim (Bank 2)%
0B Intake manifold absolute pressure kPa
0C Engine revolutionrpm
0D Vehicle speedkm/h
0E Ignition timing advance°
0F Intake air temperature°C
10 Air flow rate of manifold absolute pressure sensor g/sec
11 Throttle valve opening angle%
13 Check whether oxygen sensor is installed. —
15 Oxygen sensor output voltage (Bank 1 Sensor 2) V
15 Oxygen sensor compensation (Bank 1 Sensor 2) %
19 Oxygen sensor output voltage (Bank 2 Sensor 2) V
1C On-board diagnostic system—
24 Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor (bank 1) V and %
28 Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor (bank 2) V and %
34 A/F sensor lambda value (Bank 1 Sensor 1) —
34 A/F sensor current value (Bank 1 Sensor 1) mA
38 A/F sensor lambda value (Bank 2 Sensor 1) —
38 A/F sensor current value (Bank 2 Sensor 1) mA
EN(H6DO)(diag)-24
General Scan Tool
ENGINE (DIAGNOSTICS)
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refer to data denoting the operating condition when trouble is detected by 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 operation 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.
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 operation manual to clear or reset emission-related diagnostic in-
formation (MODE $04).
PID Data Unit of measure
02 DTC that caused CARB required freeze frame data storage —
03 Fuel system control status—
04 Calculated engine load value%
05 Engine coolant temperature°C
06 Short term fuel trim (Bank 1)%
07 Long term fuel trim (Bank 1)%
08 Short term fuel trim (Bank 2)%
09 Long term fuel trim (Bank 2)%
0B Intake manifold absolute pressure kPa
0C Engine speedrpm
0D Vehicle speedkm/h
0E Ignition timing advance°
0F Intake air temperature°C
10 Air flow rate of manifold absolute pressure sensor g/sec
11 Throttle valve opening angle%
15 Oxygen sensor output voltage (Bank 1 Sensor 2) V
15 Oxygen sensor compensation (Bank 1 Sensor 2) %
16 Oxygen sensor output voltage (Bank 2 Sensor 2) V
16 Oxygen sensor compensation (Bank 2 Sensor 2) %
1C On-board diagnostic system—
EN(H6DO)(diag)-27
Subaru Select Monitor
ENGINE (DIAGNOSTICS)
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 has been 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» 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 Display Unit of measure Note (at idling)
Engine load Engine load % 3.5%
Engine coolant temperature signal Coolant Temp. °C or °F≥ 75°C or 167°F (After
engine is warmed-up.)
A/F compensation 1 A/F Compensation 1 % 3.1%
A/F learning 1 A/F learning 1 % 0.0%
A/F compensation 2 A/F Compensation 2 % 4.7%
A/F learning 2 A/F learning 2 % 0.0%
Intake manifold absolute pressure Mani. Absolute PressuremmHg, 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 600 — 800 rpm
Meter vehicle speed signal Meter vehicle speed km/h or MPH 0 km/h or 0 MPH
Ignition timing signal Ignition timing deg 13 — 15 deg
Intake air temperature signal Intake air temperature °C or °F (Ambient air temperature)
Amount of intake air Mass Air Flow g/s or lb/m 3.8 g/s or 0.5 lb/m
Throttle opening angle signal Throttle valve angle % 1.2 — 1.6%
Fr o nt ox yg e n se n so r vo lt a g e val ue 1Fr o n t oxy ge n s en s or vol t ag e
value 1V0.035 V
Fr o nt ox yg e n se n so r vo lt a g e val ue 2Fr o n t oxy ge n s en s or vol t ag e
value 2V0.020 V
Battery voltage Battery Voltage V 12 — 14 V
Mass air flow voltage Mass air flow voltage V 1.1 — 1.2 V
Injection 1 pulse width Injection 1 pulse width ms 2.82 ms
Injection 2 pulse width Injection 2 pulse width ms 2.82 ms
Knock sensor compensation Knock correction deg 0 deg
Atmospheric pressure signal Atmospheric pressuremmHg, kPa,
inHg or psig(Atmospheric pressure)
Intake manifold relative pressureIntake manifold relative pres-
sure
mmHg, kPa,
inHg or psig
(Intake manifold absolute
pressure — atmospheric
pressure)
Acceleration opening angle signal Acceleration opening angle % 0%
Radiator fan output Radiator fan output % 0%
Purge control solenoid valve duty ratio CPC Duty % 0 — 3%
Generator duty ALT duty % 0%
Fuel pump duty Fuel pump duty % 33%
Va r i a b l e va l v e t i m i n g a d v a n c e a n g l e a m o u n t R V V T a d va n c e a n g l e a m o u n t R d e g 0 d e g
Va r i a b l e va l v e t i m i n g a d v a n c e a n g l e a m o u n t L V V T a d va n c e a n g l e a m o u n t L d e g 0 d e g
Oil flow control solenoid valve duty R OCV duty R % 9.4%
Oil flow control solenoid valve duty L OCV duty L % 9.4%
Oil flow control solenoid valve current R OCV current R mA 64 mA
Oil flow control solenoid valve current L OCV current L mA 64 mA
Fr o nt ox yg e n ( A / F) s en so r cu r r en t va l ue 1 A / F s en s or cu r r e nt va l ue 1 mA 0 . 0 m A
Fr o nt ox yg e n ( A / F) s en so r cu r r en t va l ue 2 A / F s en s or cu r r e nt va l ue 2 mA 0 . 0 m A
Fr o nt ox yg e n ( A / F) s en so r r es is t an ce val ue 1 A / F s en s or r e si st a nc e val u e 1Ω31 Ω
EN(H6DO)(diag)-28
Subaru Select Monitor
ENGINE (DIAGNOSTICS)
Fr o nt ox yg e n ( A / F) s en so r r es is t an ce val ue 2 A / F s en s or r e si st a nc e val u e 2Ω31 Ω
Fr o nt ox yg e n ( A / F) s en so r ou t p ut la m bd a 1 A / F s en s or o ut p ut l am bd a 1 — 1 . 00
Fr o nt ox yg e n ( A / F) s en so r ou t p ut la m bd a 2 A / F s en s or o ut p ut l am bd a 2 — 1 . 00
Fuel tank pressure signal Fuel Tank PressuremmHg, kPa,
inHg or psig
+8.8 mmHg, +1.2 kPa,
+0.4 inHg or +0.17 psig
Fuel temperature signal Fuel Temp. °C or °F +28°C or +82°F
A/F compensation 3 A/F Compensation 3 % –0.16%
A/F learning 3 A/F learning 3 % 0.0%
Throttle motor duty Throttle motor duty % –27%
Throttle power supply voltage Throttle power supply voltage V (Battery voltage)
Sub throttle sensor voltage Sub throttle sensor voltage V 1.50 V
Main throttle sensor voltage Main throttle sensor voltage V 0.64 V
Sub acceleration sensor voltage Sub acceleration sensor voltage V 0.7 V
Main acceleration sensor voltage Main acceleration sensor voltage V 0.7 V
Memory vehicle speed Memory vehicle speed km/h or MPH 0 km/h or 0 MPH
A/F compensation 4 A/F Compensation 4 % 0.31%
A/F learning 4 A/F learning 4 % 0.0%
Fuel level sensor resistance Fuel level resistanceΩ4 — 96 Ω
Oil temperature Oil Temperature °C≥ 85°C (After engine is
warmed-up.)
Oil switching solenoid valve duty R OSV duty R % 17.3%
Oil switching solenoid valve duty L OSV duty L % 17.3%
Oil switching solenoid valve current R OSV current R mA 192 mA
Oil switching solenoid valve current L OSV current L mA 192 mA
Va r i a b l e va l v e l i f t m o d e V V L L i f t M o d e — 1
#1 cylinder roughness monitor #1 cylinder roughness monitor — 0
#2 cylinder roughness monitor #2 cylinder roughness monitor — 0
#3 cylinder roughness monitor #3 cylinder roughness monitor — 0
#4 cylinder roughness monitor #4 cylinder roughness monitor — 0
#5 cylinder roughness monitor #5 cylinder roughness monitor — 0
#6 cylinder roughness monitor #6 cylinder roughness monitor — 0
Te s t m o d e t e r m i n a l Te s t m o d e t e r m i n a l — U c h e c k
Neutral position switch signal Neutral SW — Neutral
Idle switch signal Soft idle SW — In idle
Ignition switch signal Ignition SW — ON input
Pow er s te e r in g sw it c h s ig n al Powe r st ee r i ng S W i n pu t si gn a l — O FF i np u t ( w h e n OF F )
Air conditioning switch signal A/C SW — OFF input (when OFF)
Starter switch signal Starter SW — OFF input
Fr o nt ox yg e n mo n it o r 1 Fr o n t oxy ge n m on i to r 1 — Ri ch
Fr o nt ox yg e n mo n it o r 2 Fr o n t oxy ge n m on i to r 2 — Ri ch
Knocking signal Knock signal — OFF
Crankshaft position sensor signal Crankshaft angle signal — Yes
Camshaft position sensor signal Camshaft angle signal — Yes
Drain valve signal Vent. Solenoid Valve — OFF output (when OFF)
Rear defogger switch signal Rear defogger SW — OFF input (when OFF)
Blower fan switch signal Blower fan SW — OFF input (when OFF)
Light switch signal Light SW — OFF input (when OFF)
Wiper switch signal Wiper SW — OFF input (when OFF)
A/C middle pressure switch signal A/C middle pressure SW — OFF input
A/C compressor relay signal A/C compressor relay output — OFF output
AT c o o r d i n a t e r e t a r d a n g l e d e m a n d s i g n a lAT c o o r d i n a t e r e t a r d a n g l e
demand—Yes
Description Display Unit of measure Note (at idling)
EN(H6DO)(diag)-29
Subaru Select Monitor
ENGINE (DIAGNOSTICS)
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 has been 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 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, 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.
AT c o o r d i n a t e f u e l c u t d e m a n d s i g n a l AT c o o r d i n a t e f u e l c u t d e m a n d — O F F
Ve h i c l e d y n a m i c s c o n t r o l ( V D C ) t o r q u e d o w n
prohibition outputBan of Torque Down — Permission
Ve h i c l e d y n a m i c s c o n t r o l ( V D C ) t o r q u e d o w n
demandVDC torque down demand — OFF
AT c o o r d i n a t e p e r m i s s i o n s i g n a l AT c o o r d i n a t e p e r m i s s i o n s i g n a l — P e r m i s s i o n
Electronic throttle control motor relay signal ETC motor relay — ON
Stop light switch signal Stop Light Switch — OFF
SET/COAST switch signal SET/COAST SW — OFF
RESUME/ACCEL switch signal RESUME/ACCEL SW — OFF
Brake switch signal Brake SW — OFF
Main switch signal Main SW — OFF
Body integrated unit data reception Body Int. Unit Data — Yes
Body integlated unit counter update Body Int. Unit Count — Yes
Cruise control cancel switch signal CC Cancel SW — OFF
Va r i a b l e v a l v e l i f t d i a g n o s i s o i l p r e s s u r e sw i t c h
signal 1Oil Temperature SW1 — ON
Va r i a b l e v a l v e l i f t d i a g n o s i s o i l p r e s s u r e sw i t c h
signal 2Oil Temperature SW2 — ON
Description Display Unit of measure
Number of diagnosis code Number of Diag. Codes: 0
Condition of malfunction indicator light MI (MIL) ON or OFF
Monitoring test of misfire Misfire monitoring Finish
Monitoring test of fuel system Fuel system monitoring Finish
Monitoring test of comprehensive component Component monitoring Finish
Te s t o f c a t a l y s t C a t a l y s t D i a g n o s i s F i n i s h o r i n c o m p l e t e
Te s t o f h e a t i n g - t y p e c a t a l y s t H e a t e d c a t a l y s t N o
Te s t o f e v a p o r a t i v e e m i s s i o n p u r g e c o n t r o l s y s t e m E v a p o r a t i v e p u r g e s y s t e m F i n i s h o r i n c o m p l e t e
Te s t o f s e c o n d a r y a i r s y s t e m S e c o n d a r y a i r s y s t e m N o
Te s t o f a i r c o n d i t i o n i n g s y s t e m r e f r i g e r a n t A / C s y s t e m r e f r i g e r a n t N o
Te s t o f o x y g e n s e n s o r O x y g e n s e n o r F i n i s h o r i n c o m p l e t e
Te s t o f o x y g e n s e n s o r h e a t e r O x y g e n s e n s o r h e a t e r F i n i s h
Te s t o f E G R s y s t e m E G R s y s t e m N o s u p p o r t
A/F control #1 Fuel system for Bank 1 OPEN early period
A/F control #2 Fuel system for Bank 2 OPEN early period
Calculated load valve Calculated load valve %
Engine coolant temperature Coolant Temp. °C
A/F compensation #1 Short term fuel trim B1 %
A/F learning #1 Long term fuel trim B1 %
A/F compensation #2 Short term fuel trim #2 %
A/F learning #2 Long term fuel trim B2 %
Description Display Unit of measure Note (at idling)
EN(H6DO)(diag)-30
Subaru Select Monitor
ENGINE (DIAGNOSTICS)
NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
Intake manifold absolute pressure Mani. Absolute Pressure mmHg, kPa, inHg or psig
Engine speed Engine speed rpm
Ve h i c l e s p e e d Ve h i c l e s p e e d k m / h o r M P H
Ignition timing #1 Ignition timing adv.#1 °
Intake air temperature Intake Air Temp. °C or °F
Amount of intake air Mass Air Flow g/s or lb/m
Throttle valve angle Throttle Opening Angle %
Oxygen sensor #12 Oxygen sensor #12 V
A/F compensation #12 Short term fuel trim #12 %
Oxygen sensor #22 Oxygen sensor #22 %
A/F compensation #22 Short term fuel trim #22 %
OBD system OBD System —
Oxygen sensor #11 Oxygen sensor #11 support
Oxygen sensor #12 Oxygen sensor #12 support
Oxygen sensor #21 Oxygen sensor #21 support
Oxygen sensor #22 Oxygen sensor #22 support
A/F sensor #11 A/F sensor #11 —
A/F sensor #11 A/F sensor #11 V
A/F sensor #21 A/F sensor #21 —
A/F sensor #21 A/F sensor #21 V
A/F sensor #11 A/F sensor #11 —
A/F sensor #11 A/F sensor #11 mA
A/F sensor #21 A/F sensor #21 —
A/F sensor #21 A/F sensor #21 mA
Description Display Unit of measure