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Home >> Subaru >> 2005 >> Outback i, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Engine (Diagnostics) (H4SO U5 (PZEV)) >> Engine Control Module (ECM) I/O Signal >> Electrical Specification
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Electrical Specification

Fig 1: Identifying Engine Control Module Connector Terminals
G03828954Courtesy of SUBARU OF AMERICA, INC.
ELECTRICAL SPECIFICATION

DESCRIPTION Connector No. Terminal No. Signal (V) NOTE
Ignition SW ON (engine OFF) Engine ON (idling)
Crankshaft position sensor Signal (+) B135 10 0 -7 - +7 Waveform
Signal (-) B135 22 0 0 -
Shield B135 31 0 0 -
Camshaft position sensor Signal (+) B135 11 0 -7 - +7 Waveform
Signal (-) B135 23 0 0 -
Shield B135 31 0 0 -
Electronic throttle control Main B136 18 0.64 - 0.72 Fully opens: 3.96 0.64 - 0.72 (After engine is warmed-up.) Fully closed: 0.6 Fully open: 3.96
Sub B136 29 1.51 - 1.58 Fully opens: 4.17 1.51 - 1.58 (After engine is warmed-up.) Fully closed: 1.48 Fully open: 4.17
Electronic throttle control motor (+) B137 5 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle control motor (-) B137 4 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle control motor power supply B137 6 10 - 13 13 - 14 -
Electronic throttle control motor relay B135 35 ON: 0 OFF: 10 - 13 ON: 0 OFF: 13 - 14 When ignition switch is turned to ON: ON
Accelerator position sensor Main B136 17 Fully closed: 1 Fully opens: 3.3 Fully closed: 1 Fully opens: 3.3 -
Power supply B136 15 5 5 -
Ground B136 34 0 0 -
Sub B136 28 Fully closed: 1 Fully opens: 3.3 Fully closed: 1 Fully opens: 3.3 -
Front oxygen (A/F) sensor RH Signal (+) B134 33 - 2.6 - 3.0 -
Signal (-) B134 26 - 2.2 - 2.6 -
Shield B134 25 0 0  
Front oxygen (A/F) sensor heater RH Signal 1 B134 3 - 0 or 13 - 14 Duty waveform
Signal 2 B134 2 - 0 or 13 - 14 Duty waveform
Front oxygen (A/F) sensor LH Signal (+) B134 34 - 2.6 - 3.0 -
Signal (-) B134 27 - 2.2 - 2.6 -
Shield B134 25 0 0  
Front oxygen (A/F) sensor heater LH Signal 1 B134 1 - 0 or 13 - 14 Duty waveform
Signal 2 B135 7 - 0 or 13 - 14 Duty waveform
Front oxygen sensor RH Signal B136 24 0 0 - 0.9 -
Shield B137 31 0 0 -
Front oxygen sensor heater RH signal B136 2 - 0 or 13 - 14 Duty waveform
Front oxygen sensor LH Signal B137 25 0 0 - 0.9 -
Shield B137 31 0 0 -
Front oxygen sensor heater LH signal B135 3 - 0 or 13 - 14 Duty waveform
Rear oxygen sensor Signal B137 24 0 0 - 0.9 -
Shield B137 31 0 0 -
Rear oxygen sensor heater signal B135 2 - 0 or 13 - 14 Duty waveform
GND (Front oxygen (A/F) sensor heater RH 1) B134 7 0 0 -
GND (Front oxygen (A/F) sensor heater RH 2) B134 6 0 0 -
GND (Front oxygen (A/F) sensor heater LH 1) B134 5 0 0 -
GND (Front oxygen (A/F) sensor heater LH 2) B134 4 0 0 -
Engine coolant temperature sensor B136 14 1.0 - 1.4 1.0 - 1.4 After engine is warmed-up.
Tumble generator valve (open) B134 19 0 or 10 - 13 0 or 13 - 14 Duty waveform
Tumble generator valve (close) B134 18 0 or 10 - 13 0 or 13 - 14 Duty waveform
Tumble generator valve position sensor B136 27 Fully open: 0.2 - 1.0
Fully closed: 4.2 - 4.7		 -
Starter switch B137 8 0 0 Cranking: 8 - 14
Starter relay B135 32 ON: 0
OFF: 10 - 13		 ON: 0
OFF: 13 - 14		 -
A/C switch B137 16 ON: 10 - 13
OFF: 0		 ON: 13 - 14
OFF: 0		 -
Ignition switch B137 15 10 - 13 13 - 14 -
Neutral position switch AT B137 9 ON: 0
OFF: 12+/-0.5		 Switch is ON when select or shift lever is shifted into "P" or "N" range. (AT model)
MT ON: 12+/-0.5
OFF: 0		 Switch is ON when select or shift lever is shifted into "N" range. (MT model)
Test mode connector B137 14 5 5 When connected: 0
Knock sensor Signal B136 25 2.8 2.8 -
Shield B136 33 0 0 -
Back-up power supply B135 19 10 - 13 13 - 14 Ignition switch "OFF": 10 - 13
Control module power supply B135 6 10 - 13 13 - 14 -
B135 5 10 - 13 13 - 14 -
Sensor power supply B136 16 5 5 -
Ignition control 1 B135 18 0 1 -3.4 Waveform
2 B135 17 0 1 - 3.4 Waveform
Fuel injector #1 B136 6 10 - 13 1 - 14 Waveform
#2 B136 5 10 - 13 1 - 14 Waveform
#3 B136 4 10 - 13 1 - 14 Waveform
#4 B136 3 10 - 13 1 - 14 Waveform
Fuel pump relay control B135 26 ON: 0.5 or less
OFF: 10 - 13		 0.5 or less -
A/C relay control B135 33 ON: 0.5 or less
OFF: 10 - 13		 ON: 0.5 or less
OFF: 13 - 14		 -
Radiator fan relay 1 control B134 31 ON: 0.5 or less
OFF: 10 - 13		 ON: 0.5 or less
OFF: 13 - 14		 -
Radiator fan relay 2 control B135 34 ON: 0.5 or less
OFF: 10 - 13		 ON: 0.5 or less
OFF: 13 - 14		 -
Self-shutoff control B137 17 0.5 or less 0.5 or less -
Malfunction indicator light B134 17 - - Light 1 "ON": 1 or less Light "OFF": 10 - 14
Engine speed output B134 23 - 0 - 13 or more Waveform
Purge control solenoid valve B134 14 ON: 1 or less
OFF: 10 - 13		 ON: 1 or less
OFF: 13 - 14		 Duty waveform
EGR solenoid valve Signal A+ B134 11 0 or 10 - 13 0 or 10 - 13 Waveform
Signal A- B134 10 0 or 10 - 13 0 or 10 - 13 Waveform
Signal B+ B134 9 0 or 10 - 13 0 or 10 - 13 Waveform
Signal B- B134 8 0 or 10 - 13 0 or 10 - 13 Waveform
Power steering switch B137 10 ON: 1 or less
OFF: 10 - 13		 ON: 1 or less
OFF: 13 - 14		 -
Blower fan switch B137 13 ON: 0
OFF: 10 - 13		 ON: 0
OFF: 13 - 14		 -
A/C middle pressure switch B136 30 ON: 0
OFF: 10 - 13		 ON: 0
OFF: 13 - 14		 -
Manifold absolute pressure sensor B136 22 4.0 - 4.8 1.1 - 1.9 -
Air flow sensor Signal B136 23 - 0.3 -- 4.5 -
Shield B136 32 0 0 -
Ground B136 31 0 0 -
Intake air temperature sensor B136 13 3.15 - 3.33 3.15 - 3.33 intake air temperature: 25°C (75°F)
SSM communication line B137 20 Less than 1 <-- --> More than 4 Less than 1 <-- --> More than 4 -
GND (sensor) B136 35 0 0 -
GND (injector) B137 7 0 0 -
GND (ignition system) B135 12 0 0 -
GND (power supply) B135 4 0 0 -
B135 1 0 0 -
GND (control system) B137 2 0 0 -
B137 1 0 0 -
GND (Electronic throttle control) B137 3 0 0 -
Main switch B136 7 ON: 0
OFF: 5		 ON: 0
OFF: 5		 -
Clutch switch B136 10 When clutch pedal is depressed: 0
When clutch pedal is released: 10 - 13		 When clutch pedal is depressed: 0
When clutch pedal is released: 13 - 14		 -
Brake switch 1 B136 9 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 B136 8 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 B136 11 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 12 2.5 - 3.8 2.5 - 3.8 Ambient temperature: 25°C (75°F)
Fuel tank pressure sensor B136 21 2.3 - 2.7 2.3 - 2.7 Value after taking out the fuel filler cap and putting it back.
Fuel tank sensor control solenoid valve B134 24 ON: 1 or less
OFF: 10 - 13		 ON: 1 or less
OFF: 13 - 14		 -
Pressure control solenoid valve B134 12 ON: 1 or less
OFF: 10 - 13		 ON: 1 or less
OFF: 13 - 14		 -
Drain valve B134 13 ON: 1 or less
OFF: 10 - 13		 ON: 1 or less
OFF: 13 - 14		 -
CAN communication line (+) B137 18 2.5 - 3.5 2.5 - 3.5 Waveform
CAN communication line (-) B137 26 1.5 - 2.5 1.5 - 3.5 Waveform
AT/MT identification switch B137 13 0 0 MT model only
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