Electrical Specification
WARNING: This page is about a different car, the 2007 Subaru Outback and 2007 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE CONTROL MODULE (ECM) CONNECTOR REFERENCE
| Contents | Connector No. | Terminal No. | Signal (V) | Note | ||
|---|---|---|---|---|---|---|
| Ignition SW ON (engine OFF) | Engine ON (idling) | |||||
| Crankshaft position sensor | Signal (+) | B134 | 13 | 0 | -7 - +7 | Waveform |
| Signal (-) | B134 | 14 | 0 | 0 | - | |
| Shield | B134 | 24 | 0 | 0 | - | |
| Rear oxygen sensor | Signal | B135 | 4 | 0 | 0 - 0.9 | - |
| Shield | B135 | 1 | 0 | 0 | - | |
| GND(sensor) | B135 | 30 | 0 | 0 | - | |
| Front oxygen (A/F) sensor heater | Signal 1 | B136 | 3 | - | - | Waveform |
| Signal 2 | B136 | 2 | - | - | Waveform | |
| Rear oxygen sensor heater signal | B136 | 4 | 0 - 13 | 12 - 14 | Waveform | |
| Engine coolant temperature sensor | Signal | B134 | 34 | 1.0 - 1.4 | 1.0 - 1.4 | After engine is warmed-up. |
| GND (sensor) | B134 | 29 | 0 | 0 | After engine is warmed-up. | |
| Air flow sensor | Signal | B135 | 26 | - | 0.3 - 4.5 | - |
| Shield | B135 | 35 | 0 | 0 | - | |
| GND | B135 | 34 | 0 | 0 | - | |
| Intake air temperature sensor signal | B135 | 18 | 0.3 - 4.6 | 0.3 - 4.6 | - | |
| Wastegate control solenoid valve | B137 | 27 | 0 or 10 - 13 | 0 or 12 - 14 | Waveform | |
| Starter switch | B136 | 32 | 0 | 0 | Cranking: 8 - 14 | |
| A/C switch | B136 | 24 | ON: 10 - 13 OFF:0 |
ON: 12 - 14 OFF:0 |
- | |
| Ignition switch | B135 | 19 | 10 - 13 | 12 - 14 | - | |
| Neutral position switch (AT/MT) | B136 | 31 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
- | |
| Test mode connector | B135 | 27 | 10 - 13 | 13 - 14 | When connected: 0 | |
| Knock sensor | Signal | B134 | 15 | 2.8 | 2.8 | - |
| Shield | B134 | 25 | 0 | 0 | - | |
| Back-up power supply | B135 | 5 | 10 - 13 | 12 - 14 | Ignition switch "OFF": 10 - 13 | |
| Control module power supply | B134 | 7 | 10 - 13 | 12 - 14 | - | |
| B135 | 2 | 10 - 13 | 12 - 14 | - | ||
| Sensor power supply | B134 | 19 | 5 | 5 | - | |
| Ignition control | #1 | B137 | 18 | 0 | 12 - 14 | Waveform |
| #2 | B137 | 19 | 0 | 12 - 14 | Waveform | |
| #3 | B137 | 20 | 0 | 12 - 14 | Waveform | |
| #4 | B137 | 21 | 0 | 12 - 14 | Waveform | |
| Fuel injector | #1 | B137 | 8 | 10 - 13 | 1 - 14 | Waveform |
| #2 | B137 | 9 | 10 - 13 | 1 - 14 | Waveform | |
| #3 | B137 | 10 | 10 - 13 | 1 - 14 | Waveform | |
| #4 | B137 | 11 | 10 - 13 | 1 - 14 | Waveform | |
| Fuel pump control unit | Signal 1 | B135 | 33 | 10 - 13 | 12 - 14 | - |
| Signal 2 | B136 | 12 | 0 or 5 | 0 or 5 | Waveform | |
| A/C relay control | B136 | 9 | ON: 0.5 or less OFF: 10 - 13 |
ON: 0.5 or less OFF: 12 - 14 |
- | |
| Radiator fan relay 1 control | B136 | 18 | ON: 0.5 or less OFF: 10 - 13 |
ON: 0.5 or less OFF: 12 - 14 |
- | |
| Radiator fan relay 2 control | B136 | 29 | ON: 0.5 or less OFF: 10 - 13 |
ON: 0.5 or less OFF: 12 - 14 |
Model with A/C only | |
| Malfunction indicator light | B136 | 11 | - | - | Light "ON": 1 or less Light "OFF': 10 - 14 |
|
| Engine speed output | B136 | 22 | - | 0 - 13 or more | Waveform | |
| Purge control solenoid valve 1 | B137 | 29 | ON: 1 or less OFF: 10 - 13 |
ON: 1 or less OFF: 12 - 14 |
Waveform | |
| Purge control solenoid valve 2 | B136 | 7 | ON: 1 or less OFF: 10 - 13 |
ON: 1 or less OFF: 12 - 14 |
Waveform | |
| Manifold absolute pressure sensor | Signal | B134 | 6 | 1.7 - 2.4 | 1.1 - 1.6 | - |
| Power supply | B134 | 19 | 5 | 5 | ||
| GND (sensor) | B134 | 29 | 0 | 0 | ||
| Power steering oil pressure switch | B134 | 33 | 10 - 13 | ON:0 OFF: 12 - 14 |
- | |
| Front oxygen (A/F) sensor signal (+) | B135 | 9 | 2.8 - 3.2 | 2.8 - 3.2 | - | |
| Front oxygen (A/F) sensor signal (-) | B135 | 8 | 2.4 - 2.7 | 2.4 - 2.7 | - | |
| Front oxygen (A/F) sensor shield | B135 | 1 | 0 | 0 | - | |
| SSM communication line | B136 | 16 | 1 or less ↔ 4 or more | 1 or less ↔ 4 or more | - | |
| Intake camshaft position sensor (LH) | B134 | 21 | 0 or 5 | 0 or 5 | Waveform | |
| Intake camshaft position sensor(RH) | B134 | 11 | 0 or 5 | 0 or 5 | Waveform | |
| Intake camshaft position sensor ground | B134 | 22 | 0 | 0 | - | |
| Electric throttle control | Main | B134 | 18 | 0.64 - 0.72 Fully opened: 3.96 |
0.64 - 0.72 (After engine is warmed-up.) | Fully closed: 0.6 Fully opened: 3.96 |
| Sub | B134 | 28 | 1.51 - 1.58 Fully opened: 4.17 |
1.51 - 1.58 (After engine is warmed-up.) | Fully closed: 1.48 Fully opened: 4.17 |
|
| Power supply | B134 | 19 | 5 | 5 | - | |
| GND (sensor) | B134 | 29 | 0 | 0 | - | |
| Electronic throttle control motor (+) | B137 | 5 | Duty waveform | Duty waveform | Drive frequency: 500 Hz | |
| Electronic throttle control motor H | B137 | 4 | Duty waveform | Duty waveform | Drive frequency: 500 Hz | |
| Electronic throttle control motor power supply | B136 | 1 | 10 - 13 | 12 - 14 | - | |
| Electronic throttle control motor relay | B136 | 21 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
When ignition switch is turned to ON: ON | |
| Intake AVCS solenoid (LH) | Signal (+) | B137 | 15 | ON: 10 - 13 OFF:0 |
ON: 12 - 14 OFF:0 |
- |
| Signal (-) | B137 | 14 | 0 | 0 | - | |
| Intake AVCS solenoid (RH) | Signal (+) | B137 | 17 | ON: 10 - 13 OFF:0 |
ON: 12 - 14 OFF:0 |
- |
| Signal (-) | B137 | 16 | 0 | 0 | - | |
| Accelerator pedal position sensor | Main sensor signal | B135 | 23 | Fully closed: 1 Fully opened: 3.3 |
Fully closed: 1 Fully opened: 3.3 |
- |
| Main power supply | B135 | 21 | 5 | 5 | - | |
| GND (main sensor) | B135 | 29 | 0 | 0 | - | |
| Shield | B136 | 6 | 0 | 0 | - | |
| Sub sensor signal | B135 | 31 | Fully closed: 1 Fully opened: 3.3 |
Fully closed: 1 Fully opened: 3.3 |
- | |
| Sub power supply | B135 | 22 | 5 | 5 | - | |
| GND (sub sensor) | B135 | 30 | 0 | 0 | - | |
| Starter relay | B136 | 20 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
ON: cranking | |
| A/C middle pressure switch | B136 | 33 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
- | |
| Clutch switch | B136 | 25 | When clutch pedal is depressed: 0 When brake pedal is released: 10 - 13 |
When clutch pedal is depressed: 0 When brake pedal is released: 12 - 14 |
- | |
| Brake switch 1 | B135 | 20 | 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 | B135 | 28 | 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 | B135 | 24 | 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 | B135 | 12 | ON:0 OFF: 5 |
ON:0 OFF: 5 |
- | |
| Fuel tank pressure sensor | B135 | 32 | 2.3 - 2.7 | 2.3 - 2.7 | - | |
| Pressure control solenoid valve | B136 | 28 | ON: 1 or less OFF: 10 - 13 |
ON: 1 or less OFF: 12 - 14 |
- | |
| Drain valve | B136 | 17 | ON: 1 or less OFF: 10 - 13 |
ON: 1 or less OFF: 12 - 14 |
- | |
| Fuel temperature sensor | B135 | 17 | 2.5 - 3.8 | 2.5 - 3.8 | Ambient temperature: 25°C (77°F) | |
| Immobilizer | Signal 1 | B136 | 26 | - | - | - |
| Signal 2 | B136 | 34 | - | - | - | |
| CAN communication (+) | B136 | 27 | - | - | - | |
| CAN communication (-) | B136 | 35 | - | - | - | |
| AT/MT identification | B136 | 15 | 0 | 0 | - | |
| Blow-by leak diagnosis signal | B134 | 30 | 0 | 0 | At the time of open circuit (fault): 5 | |
| Tumble generator valve position sensor signal (RH) | B134 | 26 | Fully closed: 0.4 - 1.2 Fully opened: 2.8 - 4.6 |
Fully closed: 0.4 - 1.2 Fully opened: 2.8 - 4.6 |
- | |
| Tumble generator valve position sensor signal (LH) | B134 | 16 | Fully closed: 0.4 - 1.2 Fully opened: 2.8 - 4.6 |
Fully closed: 0.4 - 1.2 Fully opened: 2.8 - 4.6 |
- | |
| Tumble generator valve RH (closed) | B137 | 23 | 0 or 10 - 13 | 0 or 12 - 14 | - | |
| Tumble generator valve LH (closed) | B137 | 13 | 0 or 10 - 13 | 0 or 12 - 14 | - | |
| Tumble generator valve RH (open) | B137 | 22 | 0 or 10 - 13 | 0 or 12 - 14 | - | |
| Tumble generator valve LH (open) | B137 | 12 | 0 or 10 - 13 | 0 or 12 - 14 | - | |
| Secondary air pipe pressure sensor | Signal | B134 | 27 | 2.2 - 2.8 | 2.2 - 2.8 | When secondary air is inducted: 3.2 - 4.9 |
| Power supply | B134 | 19 | 5.12 | 5.12 | - | |
| GND (sensor) | B134 | 29 | 0 | 0 | - | |
| Secondary air combination valve relay 1 | B136 | 30 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
- | |
| Secondary air combination valve relay 2 | B136 | 19 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
- | |
| Secondary air pump relay | B136 | 8 | ON:0 OFF: 10 - 13 |
ON:0 OFF: 12 - 14 |
- | |
| Self-shutoff control | B136 | 23 | 10 - 13 | 12 - 14 | - | |
| GND (ignition system) | B137 | 26 | 0 | 0 | - | |
| B137 | 6 | 0 | 0 | - | ||
| Ground (engine 1) | B134 | 5 | 0 | 0 | - | |
| Ground (engine 2) | B137 | 7 | 0 | 0 | - | |
| Ground (engine 3) | B137 | 2 | 0 | 0 | - | |
| Ground (engine 4) | B137 | 1 | 0 | 0 | - | |
| Ground (engine 5) | B137 | 3 | 0 | 0 | - | |
| Ground (body) | B136 | 6 | 0 | 0 | - | |
ENGINE CONTROL MODULE (ECM) CONNECTOR REFERENCE
| Input/output name | Measuring condition | Waveform |
|---|---|---|
| 1. Crankshaft position sensor | During idling | |
| 2. Camshaft position sensor | During idling |