2005 Subaru Outback XT Limited, AutomaticFACTORY OEM SERVICE PROCEDURE

Electrical Specification

Fig 1: Identifying Engine Control Module (ECM) Connector Terminals
G03829937Courtesy of SUBARU OF AMERICA, INC.
ENGINE CONTROL MODULE (ECM) CONNECTOR TERMINALS REFERENCE

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 -
Rear oxygen sensor Signal B137 25 0 0 - 0.9 -
Shield B137 31 0 0 -
GND (sensor) B136 35 0 0 -
Front oxygen (A/F) sensor heater Signal 1 B134 3 - - Waveform
Signal 2 B134 2 - - Waveform
Rear oxygen sensor heater signal B135 2 0 - 13 13 - 14 Waveform
Engine coolant temperature sensor Signal B136 14 1.0 - 1.4 1.0 - 1.4 After engine is warmed-up.
GND (sensor) B136 35 0 0 After engine is warmed-up.
Air flow sensor Signal B136 23 - 0.3 - 4.5 -
Shield B136 32 0 0 -
GND B136 31 0 0 -
Intake air temperature sensor signal B136 13 0.3 - 4.6 0.3 - 4.6 -
Wastegate control solenoid valve B134 32 0 or 10 - 13 0 or 13 - 14 Waveform
Starter switch B137 8 0 0 Cranking: 8 - 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 (MT) B137 9 ON: 10 - 13 OFF: 0 ON: 13 - 14 OFF: 0 -
Neutral position switch (AT) B137 9 ON: 0 OFF: 10 - 13 ON: 0 OFF: 13 - 14 -
Test mode connector B137 15 10 - 13 13 - 14 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 5 10 - 13 13 - 14 -
B135 6 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
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 control unit Signal 1 B137 28 10 - 13 13 - 14 -
Signal 2 B135 27 0 or 5 0 or 5 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 relay 1 control B135 25 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 13-14 -
Radiator fan relay 2 control B135 24 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 13 - 14 Model with A/C
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 Waveform
Manifold absolute pressure sensor Signal B136 22 1.7 - 2.4 1.1 - 1.6 -
Power supply B136 16 5 5
GND (sensor) B136 35 0 0
Power steering oil pressure switch B137 10 10 - 13 ON: 0 OFF: 13 - 14 -
Front oxygen (A/F) sensor signal (+) B134 33 2.8 - 3.2 2.8 - 3.2 -
Front oxygen (A/F) sensor signal (-) B134 26 2.4 - 2.7 2.4 - 2.7 -
Front oxygen (A/F) sensor shield B134 25 0 0 -
SSM communication line B137 20 Less than 1 <-- --> More than 4 Less than 1 <-- --> More than 4 -
GND (injector) B137 7 0 0 -
GND (sensor) B136 35 0 0 -
GND (ignition system) B135 12 0 0 -
GND (power supply) B135 4 0 0 -
B135 1 0 0 -
GND (control system) B137 1 0 0 -
B137 2 0 0 -
GND (Front oxygen (A/ F) sensor heater 1) B134 7 0 0 -
GND (Front oxygen (A/ F) sensor heater 2) B134 6 0 0 -
GND (Electronic throttle control) B137 3 0 0 -
Intake camshaft position sensor (LH) B135 8 0 or 5 0 or 5 Waveform
Intake camshaft position sensor(RH) B135 9 0 or 5 0 or 5 Waveform
Electronic throttle control Main B136 18 0.64 - 0.72 Fully open: 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 open: 4.17 1.51 - 1.58 (After engine is warmed-up.) Fully closed: 1.48 Fully open: 4.17
Power supply B136 16 5 5 -
GND (sensor) B136 35 0 0 -
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
Intake AVCS solenoid (LH) Signal (+) B134 19 ON: 10 - 13 OFF: 0 ON: 13 - 14 OFF: 0 -
Signal (-) B134 29 0 0 -
Intake AVCS solenoid (RH) Signal (+) B134 18 ON: 10 - 13 OFF:0 ON: 13 - 14 OFF: 0 -
Signal (-) B134 28 0 0 -
Accelerator position sensor Main B136 17 Fully closed: 1 Fully open: 3.3 Fully closed: 1 Fully open: 3.3 -
Power supply B136 15 5 5 -
GND (sensor) B136 34 0 0 -
Sub B136 28 Fully closed: 1 Fully open: 3.3 Fully closed: 1 Fully open: 3.3 -
Shield B137 2 0 0 -
Power supply B136 16 5 5 -
GND (sensor) B136 35 0 0 -
Starter relay B135 32 ON: 0 OFF: 10 - 13 ON: 0 OFF: 13 - 14 ON: Cranking
A/C middle pressure switch B136 30 ON: 0 OFF: 10 - 13 ON: 0 OFF: 13 - 14 -
Clutch switch B134 1 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 -
Cruise control main switch B136 7 ON: 0 OFF: 5 ON: 0 OFF: 5 -
Exhaust gas temperature sensor B136 24 - - -
Fuel tank pressure sensor B136 21 2.3 - 2.7 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
Immobilizer Signal 1 B137 19 - - -
Signal 2 B137 27 - - -
CAN Communication (+) B137 18 - - -
CAN Communication (-) B137 26 - - -
AT/MT identification signal B134 34 0 0 -
Blow-by leak diagnosis signal B137 24 0 0 -
Tumble generator valve position sensor RH B136 27 Fully closed: 3.8 - 4.9 Fully opened: 0.2 - 0.9 Fully closed: 3.8 - 4.9 Fully opened: 0.2 - 0.9 -
Tumble generator valve position sensor LH B136 26 Fully closed: 3.8 - 4.9 Fully opened: 0.2 - 0.9 Fully closed: 3.8 - 4.9 Fully opened: 0.2 - 0.9 -
Tumble generator valve RH (close) B134 8 0 or 10 -13 O or 13 - 14 -
Tumble generator valve LH (close) B134 10 0 or 10 - 13 0 or 13 - 14 -
Tumble generator valve RH (open) B134 9 O or 10 - 13 0 or 13 - 14 -
Tumble generator valve LH (open) B134 11 0 or 10 - 13 0 or 13 - 14 -
Factory Service Tools

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  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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