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Home >> Subaru >> 2010 >> Outback R >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls - Engine (Diagnostics) (H4SO - 2.5L SOHC)) >> Engine Control Module (ECM) I/O Signal >> Electrical Specification
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Electrical Specification

WARNING: This page is about a different variant/trim than selected.
Fig 1: Identifying Engine Control Module (ECM) Connector Terminals
G05334606Courtesy of SUBARU OF AMERICA, INC.
CONNECTOR TERMINALS REFERENCE CHART

Description Connector No. Terminal No. Signal (V) Note
Ignition SW ON (engine OFF) Engine ON (idling)
Crankshaft position sensor Signal (+) B137 17 0 -7 - +7 Waveform
Signal (-) B137 25 0 0 -
Shield B137 31 0 0 -
Camshaft position sensor Signal (+) B137 24 0 -7 - +7 Waveform
Signal (-) B137 30 0 0 -
Shield B137 31 0 0 -
Electronic throttle control Main B134 18 0.64 - 0.72
Fully open: Approx. 4.04
0.64 - 0.72 (After engine is warmed up.) Fully closed: Approx. 0.6
Fully open: Approx. 4.04
Sub B134 28 1.51 - 1.58
Fully open: Approx. 4.232
1.51 - 1.58 (After engine is warmed up.) Fully closed: Approx. 1.48
Fully open: Approx. 4.232
Power supply B134 19 5 5 -
Ground (sensor) B134 29 0 0 -
Electronic throttle control motor (+) B134 2 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle control motor (-) B134 1 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle control motor power supply B135 7 10 - 13 12 - 14 -
Electronic throttle control motor relay B135 17 ON: 0
OFF: 10 - 13
ON: 0
OFF: 12 - 14
When ignition switch is turned to ON: ON
Accelerator pedal position sensor Main sensor signal B135 23 Fully closed: 1.0
Fully opened: 3.5
Fully closed: 1.0
Fully opened: 3.5
-
Main power supply B135 21 5 5 -
GND (Main sensor) B135 29 0 0 -
Sub sensor signal B135 31 Fully closed: 1.0
Fully opened: 3.5
Fully closed: 1.0
Fully opened: 3.5
-
Sub power supply B135 22 5 5 -
GND (Sub sensor) B135 30 0 0 -
Rear oxygen sensor Signal B136 20 0 0 - 0.9 -
Shield B136 9 0 0 -
Front oxygen (A/F) sensor heater Signal 1 B136 6 10 - 13 1 - 14 Duty waveform
Signal 2 B136 5 10 - 13 1 - 14 Duty waveform
Rear oxygen sensor heater signal B135 6 10 - 13 1 - 14 Duty waveform
Engine coolant temperature sensor B137 22 1.0 - 1.4 1.0 - 1.4 After engine is warmed up.
Starter switch B136 16 0 0 CVT model Cranking: 8 - 14
MT model Cranking with the clutch pedal pressed: 8 - 14
Starter relay control B135 26 ON: 0.5 or less
OFF: 10 - 13
ON: 0.5 or less
OFF: 12 - 14
-
Ignition switch B136 30 10 - 13 12 - 14 -
Neutral position switch B136 35 ON: 0
OFF: 12+0.5
CVT model: Switch is ON when select lever is in "P" range or "N" range.
MT model: Switch is ON when shift lever is in neutral.
Delivery (test) mode fuse B136 34 10 - 13 13 - 14 When fuse is installed: 0
Knock sensor Signal B137 2 2.5 2.5 -
Shield B137 8 0 0 -
Back-up power supply B136 2 10 - 13 12 - 14 Ignition switch "OFF": 10 - 13
Control module power supply B137 7 10 - 13 12 - 14 -
B136 1 10 - 13 12 - 14 -
Ignition control #1 B134 21 0 12 - 14 Waveform
#2 B134 22 0 12 - 14 Waveform
#3 B134 31 0 12 - 14 Waveform
#4 B134 32 0 12 - 14 Waveform
Fuel injector #1 B134 10 10 - 13 1 - 14 Waveform
#2 B134 11 10 - 13 1 - 14 Waveform
#3 B134 12 10 - 13 1 - 14 Waveform
#4 B134 13 10 - 13 1 - 14 Waveform
Fuel pump relay control B136 33 ON: 0.5 or less
OFF: 10 - 13
ON: 0.5 or less
OFF: 12 - 14
-
Radiator fan relay 1 control B135 12 ON: 0.5 or less
OFF: 10 - 13
ON: 0.5 or less
OFF: 12 - 14
-
Radiator fan relay 2 control B135 11 ON: 0.5 or less
OFF: 10 - 13
ON: 0.5 or less
OFF: 12 - 14
-
Self-shutoff control B135 13 0.5 or less 0.5 or less -
Malfunction indicator light B135 33 - - Light "ON": 1 or less
Light "OFF": 10 - 14
Engine speed output B135 15 - 0 - 13 or more Waveform
Oil temperature sensor signal B137 21 1.0 - 1.4 1.0 - 1.4 After engine is warmed up.
Purge control solenoid valve B137 6 ON: 1 or less
OFF: 10 - 13
ON: 1 or less
OFF: 12 - 14
Duty waveform
EGR valve Signal 1 B134 8 0 or 10 - 13 0 or 12 - 14 Waveform
Signal 2 B134 9 0 or 10 - 13 0 or 12 - 14 Waveform
Signal 3 B134 20 0 or 10 - 13 0 or 12 - 14 Waveform
Signal 4 B134 30 0 or 10 - 13 0 or 12 - 14 Waveform
Power steering oil pressure switch B137 28 ON: 1 or less
OFF: 10 - 13
ON: 1 or less
OFF: 12 - 14
-
Blower motor relay B135 19 ON: 0
OFF: 10 - 13
ON: 0
OFF: 12 - 14
Manual A/C
Oil level switch B136 26 0 0 Oil level LOW: 10 - 14
Oil switching solenoid valve RH Signal (+) B134 7 0 Duty waveform Drive frequency: 300 Hz
Signal (-) B134 15 0 0 -
Oil switching solenoid valve LH Signal (+) B134 5 0 Duty waveform Drive frequency: 300 Hz
Signal (-) B134 14 0 0 -
Variable valve lift diagnosis oil pressure switch RH B137 14 0 0 -
Variable valve lift diagnosis oil pressure switch LH B137 13 0 0 -
Front oxygen (A/F) sensor Signal (+) B136 19 - 2.7 - 2.9 -
Signal (-) B136 18 - 2.35 - 2.25 -
Shield B136 9 0 0 -
Manifold absolute pressure sensor B137 20 3.4 - 3.8 1.4 - 1.8 -
Air flow sensor Signal B136 22 - 0.3 - 4.5 -
Shield B136 10 0 0 -
Ground B136 11 0 0 -
Intake air temperature sensor signal B136 31 0.3 - 4.6 0.3 - 4.6 -
Immobilizer communication B135 25 1 or less ↔ 4 or more 1 or less ↔ 4 or more -
SSM communication line B135 14 1 or less ↔ 4 or more 1 or less ↔ 4 or more -
Sensor power supply B134 19 5 5 -
B135 22 5 5 -
Ground Sensor B134 29 0 0 -
B135 30 0 0 -
Engine 1 B134 6 0 0 -
Engine 2 B134 4 0 0 -
Engine 3 B134 3 0 0 -
Engine 4 B137 1 0 0 -
Engine 5 B137 3 0 0 -
Body B136 4 0 0 -
Clutch switch B135 9 When clutch pedal is depressed: 0
When clutch pedal is released: 10 - 13
When clutch pedal is depressed: 0
When clutch pedal is released: 12 - 14
-
Brake switch 1 (brake switch) B136 15 When brake pedal is depressed: 0
When brake pedal is released: 10 - 13
When brake pedal is depressed: 0
When brake pedal is released: 12 - 14
-
Brake switch 2 (stop light switch) B136 3 When brake pedal is depressed: 10 - 13
When brake pedal is released: 0
When brake pedal is depressed: 12 - 14
When brake pedal is released: 0
-
Cruise control main switch B136 13 ON: 0
OFF: 5
ON: 0
OFF: 5
-
Cruise control command switch B136 12 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
-
Fuel temperature sensor B136 23 2.5 - 3.8 2.5 - 3.8 Outside temperature: 25°C (77°F)
Fuel tank pressure sensor B136 21 2.3 - 2.7 2.3 - 2.7 Value after removing fuel filler cap and installing again
Drain valve B135 4 ON: 1 or less
OFF: 10 - 13
ON: 1 or less
OFF: 12 - 14
-
CAN communication (Hi) B136 17 2.5 - 3.5 2.5 - 3.5 Waveform
(Lo) B136 28 1.5 - 2.5 1.5 - 2.5 Waveform

Input/output name: 

Measuring condition: 

Fig 3: Engine Control Module (ECM) - Wiring Diagram (1 Of 5)
G06650947Courtesy of SUBARU OF AMERICA, INC.
Fig 4: Engine Control Module (ECM) - Wiring Diagram (2 Of 5)
G06650948Courtesy of SUBARU OF AMERICA, INC.
Fig 5: Engine Control Module (ECM) - Wiring Diagram (3 Of 5)
G06650949Courtesy of SUBARU OF AMERICA, INC.
Fig 6: Engine Control Module (ECM) - Wiring Diagram (4 Of 5)
G06650950Courtesy of SUBARU OF AMERICA, INC.
Fig 7: Engine Control Module (ECM) - Wiring Diagram (5 Of 5)
G06650951Courtesy of SUBARU OF AMERICA, INC.