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Home >> Subaru >> 2005 >> Outback R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Engine (Diagnostics) (H6DO) >> Engine Control Module (ECM) I/O Signal >> Electrical Specification
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Electrical Specification

Fig 1: Identifying Engine Control Module Connector Terminals
G03830777Courtesy of SUBARU OF AMERICA, INC.
TERMINAL CONNECTOR SPECIFICATION CONDITION CHART

Description Connector No. Terminal No. Signal (V) Reference
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 (LH) B135 8 0.275 0or5 Waveform
Camshaft position sensor (RH) B135 9 0.275 0or5 Waveform
Electronic throttle control Main B136 18 0.64 - 0.94
Fully opens: 4.01
0.64 - 0.72 (After engine is warmed-up.) Fully closed: 0.6
Fully opened: 4.01
Sub B136 29 1.51 - 1.76
Fully opens: 4.23
1.51 - 1.58 (After engine is warmed-up.) Fully closed: 1.48
Fully opens: 4.23
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 12 - 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 pedal position sensor Main B136 17 Fully closed: 1
Fully opens: 3.6
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: 3.7
Fully closed: 1
Fully opens: 3.3
-
Engine coolant temperature sensor B136 14 1.0 - 1.4 1.0 - 1.4 After engine is warmed-up.
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 17 ON: 10 - 13
OFF: 0
ON: 13 - 14
OFF: 0
-
Ignition switch B137 14 10 - 13 13 - 14 -
Neutral position switch B137 9 ON: 0
OFF: 12+/-0.5
Switch is ON when select lever is shifted into "P" or "N" range.
Test mode connector B137 15 12 - 14 12 - 14 When connected: 0
Knock sensor 1 Signal B136 25 2.4 2.4 -
Shield B136 33 0 0 -
Knock sensor 2 Signal B136 24 2.4 2.4 -
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 13 - 14 Waveform
#2 B135 17 0 13 - 14 Waveform
#3 B135 16 0 13 - 14 Waveform
#4 B135 15 0 13 - 14 Waveform
#5 B135 14 0 13 - 14 Waveform
#6 B135 13 0 13 - 14 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
#5 B136 2 10 - 13 1 - 14 Waveform
#6 B136 1 10 - 13 1 - 14 Waveform
A/C relay control B135 33 ON: 0.5, or less
OFF: 10 - 13
ON: 0.5, or less
OFF: 13 - 14
-
Radiator fan control B134 31 ON: 0.5, or less
OFF: 10 - 13
ON: 0.5, or less
OFF: 13 - 14
-
Radiator fan control power supply B135 30 ON: 0.5, or less
OFF: 10-13
ON: 0.5, or less
OFF: 13 - 14
-
Self-shutoff control B137 16 0 0 -
Malfunction indicator light B134 , 17 - - Light "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
-
Power steering switch B137 10 ON: 1, or less
OFF: 10 - 13
ON: 1, or less
OFF: 13 - 14
-
Manifold absolute pressure sensor B136 22 3.5 - 4.8 1.1 - 1.9 -
Air flow sensor Signal B136 23 0.74 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)
Front oxygen (A/F) sensor RH Signal (+) B134 33 2.8 - 3.2 2.8 - 3.2 -
Signal (-) B134 26 2.4 - 2.7 2.4 - 2.7 -
Shield B134 25 0 0 -
Front oxygen (A/F) sensor heater RH Signal 1 B134 3 12 - 14 - Waveform
Signal 2 B134 2 12 - 14 - Waveform
Front oxygen (A/F) sensor LH Signal (+) B134 34 2.8 - 3.2 2.8 - 3.2 -
Signal (-) B134 27 2.4 - 2.7 2.4 - 2.7 -
Shield B134 25 0 0 -
Front oxygen (A/F) sensor heater LH Signal 1 B134 1 12 - 14 - Waveform
Signal 2 B135 7 12 - 14 - Waveform
Rear oxygen sensor RH Signal B137 24 0 0 - 0.9 -
Shield B137 31 0 0 -
Rear oxygen sensor heater RH signal B135 2 12 - 14 - Waveform
Rear oxygen sensor LH Signal B137 25 0 0 - 0.9 -
Shield B137 31 0 0 -
Rear oxygen sensor heater LH signal B135 3 12 - 14 - Waveform
Immobilizer communication 1 B137 19 10 10 -
Immobilizer communication 2 B137 27 10 10 -
Fuel pump control unit Signal 1 B137 28 0 13 - 14 -
Signal 2 B135 27 0 0 or 5 -
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 -
Cruise control main switch B136 7 ON: 0
OFF: 5
ON: 0
OFF: 5
-
Oil flow control solenoid valve RH Signal (+) B134 18 0 0.6 -
Signal (-) B134 28 0 0 -
Oil flow control solenoid valve LH Signal (+) B134 19 0 0.6 -
Signal (-) B134 29 0 0 -
Oil switching solenoid valve RH Signal (+) B134 21 0 1.9 -
Signal (-) B134 20 0 0 -
Oil switching solenoid valve LH Signal (+) B135 25 0 1.9 -
Signal (-) B135 24 0 0 -
Oil temperature sensor signal B136 27 1.0 - 1.4 1.0 - 1.4 After engine is warmed-up.
Variable valve lift diagnosis oil pressure switch RH B135 21 0 0 -
Variable valve lift diagnosis oil pressure switch LH B135 29 0 0 -
Generator control B134 22 0 - 6.5 0 - 6.5 -
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 (Front oxygen (A/F) sensor heater RH) B134 7 0 0 -
GND (Front oxygen (A/F) sensor heater LH) B134 5 0 0 -
GND (Electronic throttle control) B137 3 0 0 -
Fuel tank pressure sensor B136 21 2.3 2.7 -
Fuel tank 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
-
Fuel tank sensor control valve B134 24 ON: 1 or less
OFF: 10-13
ON: 1 or less
OFF: 13 - 14
-
Fuel temperature sensor signal B136 12 2.5 - 3.8 2.5 - 3.8 Ambient temperature: 25°C (75°F)
CAN communication signal (+) B137 18 - - -
CAN communication signal (-) B137 26 - - -