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Home >> Subaru >> 2013 >> Outback Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (Diagnostics) (H4DO) >> Engine Control Module (ECM) I/O Signal >> Electrical Specification >> Notes
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Electrical Specification: Notes

Fig 1: Identifying Engine Control Module (ECM) I/O Signal Connector Terminals
G05334606Courtesy of SUBARU OF AMERICA, INC.
Description Connector No. Terminal No. Signal (V) Note
Ignition SW ON (engine OFF) Engine ON (idling)
Crankshaft position sensor Signal (+) B136 16 0 -7 - +7 Waveform
Signal (-) B136 27 0 0 -
Shield B136 35 0 0 -
Front oxygen (A/F) sensor Signal (+) B136 19 2.8 - 3.2 2.8 - 3.2 -
Signal (-) B136 18 2.4 - 2.7 2.4 - 2.7 -
Shield B136 30 0 0 -
Rear oxygen sensor Signal B136 21 0 0 - 0.9 -
Shield B136 30 0 0 -
Front oxygen (A/F) sensor heater signal B136 5 - - Waveform
Rear oxygen sensor heater signal B134 6 0 - 13 - Waveform
Engine coolant temperature sensor Signal B134 30 1.0 - 1.4 1.0 - 1.4 After engine is warmed up.
Air flow sensor Signal B137 22 - 0.3 - 4.5 -
Shield B137 28 0 0 -
Ground B137 29 0 0 -
Intake air temperature sensor signal B137 12 0.3 - 4.6 0.3 - 4.6 -
Engine oil temperature sensor signal B134 20 1.0 - 1.4 1.0 - 1.4 After engine is warmed up.
Starter switch B137 17 0 0 Model without push button start Cranking: 8 - 14
Model with push button start Cranking: waveform
Accessory cut request B135 32 10 - 13 12 - 14 Model with push button start Cranking: 0
Starter switch 2 B137 14 0 0 Model with push button start Cranking: 8 - 14
Starter cut relay B135 34 0 0 Model with push button start Cranking: 8 - 14
Ignition switch B137 27 10 - 13 12 - 14 -
Neutral position switch B137 16 ON: 0 OFF: 10 - 13 ON: 0 OFF: 12 - 14 -
Delivery (test) mode switch B137 13 10 - 13 12 - 14 When fuse is installed: 0
Knock sensor Signal B136 28 2.8 2.8 -
Shield B136 29 0 0 -
Back-up power supply B137 2 10 - 13 12 - 14 Ignition switch "OFF": 10 - 13
Control module power supply B136 6 10 - 13 12 - 14 -
B137 1 10 - 13 12 - 14 -
Sensor power supply B134 19 5 5 -
B135 22 5 5 -
Ignition control #1 B134 21 0 0 or 5 Waveform
#2 B134 10 0 0 or 5 Waveform
#3 B134 31 0 0 or 5 Waveform
#4 B134 8 0 0 or 5 Waveform
Fuel injector #1 B134 12 10 - 13 1 - 14 Waveform
#2 B134 22 10 - 13 1 - 14 Waveform
#3 B134 32 10 - 13 1 - 14 Waveform
#4 B134 13 10 - 13 1 - 14 Waveform
Fuel pump relay control B135 19 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 12 - 14 -
Main fan relay control B135 12 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 12 - 14 -
Sub fan relay control B135 11 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 12 - 14 -
Engine speed output B135 15 - 0 - 13 or more Waveform
Malfunction indicator light B135 33 - - C6 model Light "ON": 1 or less Light "OFF": 10 - 14
Purge control solenoid valve B134 11 ON: 1 or less OFF: 10 - 13 ON: 1 or less OFF: 12 - 14 Waveform
EGR control valve Signal 1 B136 11 0 or 10 - 13 0 or 12 - 14 -
Signal 2 B136 13 0 or 10 - 13 0 or 12 - 14 -
Signal 3 B136 31 0 or 10 - 13 0 or 12 - 14 -
Signal 4 B136 32 0 or 10 - 13 0 or 12 - 14 -
Manifold absolute pressure sensor signal B136 20 1.7 - 2.4 1.1 - 1.6 -
Electronic throttle control Main B134 18 Approx. 0.7 Approx. 0.6 - 0.7 (After engine is warmed up.) Fully closed: Approx. 0.6
Fully open: Approx. 4.0
Sub B134 28 Approx. 1.6 Approx. 1.5 - 1.6 (After engine is warmed up.) Fully closed: Approx. 1.5
Fully open: Approx. 4.2
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
Intake oil control solenoid (LH) B134 16 ON: 0 OFF: 10 - 13 ON: 0 OFF: 10 - 13 -
Intake oil control solenoid (RH) B134 17 ON: 0 OFF: 10 - 13 ON: 0 OFF: 10 - 13 -
Intake camshaft position sensor (LH) B136 15 0 or 5 0 or 5 Waveform
Intake camshaft position sensor (RH) B136 26 0 or 5 0 or 5 Waveform
Camshaft position sensor ground B136 34 0 0 -
Accelerator pedal position sensor Main sensor signal B135 23 Fully closed: 0.4 - 1.0
Fully opened: 2.4 - 3.7
Fully closed: 0.4 - 1.0
Fully opened: 2.4 - 3.7
-
Main power supply B135 21 5 5 -
Ground (main sensor) B135 29 0 0 -
Sub signal sensor B135 31 Fully closed: 0.3 - 1.1
Fully opened: 2.3 - 3.8
Fully closed: 0.3 - 1.1
Fully opened: 2.3 - 3.8
-
Starter relay B135 26 ON: 0 OFF: 10 - 13 ON: 0 OFF: 12 - 14 ON: cranking
Clutch switch B137 15 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
MT model
Brake switch 1 (brake switch) B137 7 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) B137 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 command switch B137 30 When operating nothing: 3.5 - 4.5
When operating RES/ACC: 2.5 - 3.5
When operating following distance setting: 1.5 - 2.5
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 following distance setting: 1.5 - 2.5
When operating SET/COAST: 0.5 - 1.5
When operating CANCEL: 0 - 0.5
-
Cruise control main switch B137 23 ON: 0
OFF: 5
ON: 0
OFF: 5
-
CAN communication (Hi) B137 19 - - -
(Lo) B137 18 - - -
Self-shutoff control B135 13 0 0 -
Power steering oil pressure switch B136 10 ON: 1 or less 10 - 13 ON: 1 or less OFF: 12 - 14 -
Oil level switch B136 24 0 0 Oil level LOW: 10 - 14
Tumble generator valve opening angle switch signal (LH) B136 9 Fully closed: 0.5 or less Fully opened: 9.5 or more Fully closed: 0.5 or less Fully opened: 9.5 or more -
Tumble generator valve (LH open) B134 23 0 or 10 - 13 0 or 12 - 14 -
Tumble generator valve (LH closed) B134 24 0 or 10 - 13 0 or 12 - 14 -
Tumble generator valve opening angle switch signal (RH) B136 23 Fully closed: 0.5 or less Fully opened: 9.5 or more Fully closed: 0.5 or less Fully opened: 9.5 or more -
Tumble generator valve (RH open) B134 25 0 or 10 - 13 0 or 12 - 14 -
Tumble generator valve (RH closed) B134 14 0 or 10 - 13 0 or 12 - 14 -
Immobilizer communication B135 25 - - -
ELCM Switching valve B135 1 10 - 13 12 - 14 Operating: 0
Pressure sensor B135 20 1 - 4 1 - 4 When ignition switch is turned to ON: atmospheric pressure
Vacuum pump B135 8 10 - 13 12 - 14 Operating: 0
Ground Sensor B134 29 0 0 -
B135 30 0 0 -
Engine 1 B134 4 0 0 -
Engine 2 B134 3 0 0 -
Engine 3 B136 1 0 0 -
Engine 4 B136 2 0 0 -
Engine 5 B136 3 0 0 -
Body B137 4 0 0 -