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Home >> Subaru >> 2012 >> Tribeca Premium >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls (Diagnostics) (H6DO -3.6L DOHC) >> Engine Control Module (ECM) I/O Signal >> Electrical Specification
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Electrical Specification

Fig 1: Identifying Engine Control Module Connector Terminals
G05334606Courtesy of SUBARU OF AMERICA, INC.
Contents Connector No. Terminal No. Signal (V) Note
Ignition SW ON (engine OFF) Engine ON (idling)
Crankshaft position sensor Signal (+) B137 17 0 0 -7 - +7 Waveform
Signal (-) B137 25 0 0 -
Shield B137 31 0 0 -
Intake camshaft position sensor (LH) B137 16 0 or 5 0 or 5 Waveform
Intake camshaft position sensor (RH) B137 24 0 or 5 0 or 5 Waveform
Exhaust camshaft position sensor (LH) B137 29 0 or 5 0 or 5 Waveform
Exhaust camshaft position sensor (RH) B137 23 0 or 5 0 or 5 Waveform
Camshaft position sensor ground B137 30 0 0 -
Electronic throttle control Main B134 18 0.64 - 0.94 Fully open: Approx. 4.04 0.64 - 0.72 (After engine is warmed up.) Fully closed: Approx. 0.6 Fully open: Approx. 4.04
Sub B134 28 1.51 - 1.76 Fully open: Approx. 4.232 1.51 - 1.58 (After engine is warmed up.) Fully closed: Approx. 1.48 Fully open: Approx. 4.23
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
Accelerator pedal position sensor Main sensor signal B135 23 Fully closed: 1
Fully opened: 3.6
Fully closed: 1
Fully opened: 3.3
-
Main power supply B135 21 5 5 -
Ground (main sensor) B135 29 0 0 -
Sub sensor signal B135 31 Fully closed: 1
Fully opened: 3.7
Fully closed: 1
Fully opened: 3.3
-
Sub power supply B135 22 5 5 -
Ground (sub sensor) B135 30 0 0 -
Engine coolant temperature sensor B137 22 1.0 - 1.4 1.0 - 1.4 After engine is warmed up.
Starter switch B136 16 0 0 Cranking: 8 - 14
Starter relay B135 26 ON: 0 OFF: 10 - 13 ON: 0 OFF: 12 - 14 -
Ignition switch B136 30 10 - 13 12 - 14 -
Neutral position switch B136 35 ON: 0 OFF: 12±0.5 Switch is ON when select lever is in "P" range or "N" range.
Delivery (test) mode connector B136 34 10 - 13 12 - 14 When connected: 0
Knock sensor 1 B137 2 2.4 2.4 -
Knock sensor 2 B137 4 2.4 2.4 -
Knock sensor shield B137 8 0 0 -
Back-up power supply B136 2 10 - 13 12 - 14 Ignition switch "OFF": 10 - 13
Control module power supply B137 7 10 - 13 12 - 14 -
B136 1 10 - 13 12 - 14 -
Sensor power supply B134 19 5 5 -
Ignition control #1 B134 21 0 12 - 14 Waveform
#2 B134 22 0 12 - 14 Waveform
#3 B134 31 0 12 - 14 Waveform
#4 B134 32 0 12 - 14 Waveform
#5 B134 25 0 12 - 14 Waveform
#6 B134 26 0 12 - 14 Waveform
Fuel injector #1 B134 10 10 - 13 1 - 14 Waveform
#2 B134 11 10 - 13 1 - 14 Waveform
#3 B134 12 10 - 13 1 - 14 Waveform
#4 B134 13 10 - 13 1 - 14 Waveform
#5 B134 23 10 - 13 1 - 14 Waveform
#6 B134 24 10 - 13 1 - 14 Waveform
A/C switch B136 29 ON: 10 - 13 OFF: 0 ON: 13 - 14 OFF: 0 -
A/C middle pressure switch B136 7 ON: 0 OFF: 10 - 13 ON: 0 OFF: 13 - 14 -
A/C relay control B135 35 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 13 - 14 -
Radiator fan control B135 11 ON: 0.5 or less OFF: 10 - 13 ON: 0.5 or less OFF: 12 - 14 -
Radiator fan control power supply B135 12 ON: 0.5 or less
OFF: 10 - 13
ON: 0.5 or less
OFF: 12 - 14
-
Self-shutoff control B135 13 0 0 -
Malfunction indicator light B135 33 - - Light "ON": 1 or less
Light "OFF": 10 - 14
Engine speed output B135 15 - 0 - 13 or more Waveform
Purge control solenoid valve B137 6 ON: 1 or less
OFF: 10 - 13
ON: 1 or less
OFF: 12 - 14
-
EGR valve Signal 1 B134 8 0 or 10 - 13 0 or 12 - 14 -
Signal 2 B134 9 0 or 10 - 13 0 or 12 - 14 -
Signal 3 B134 20 0 or 10 - 13 0 or 12 - 14 -
Signal 4 B134 30 0 or 10 - 13 0 or 12 - 14 -
Manifold absolute pressure sensor B137 20 3.5 - 4.8 1.1 - 1.9 -
Air flow sensor Signal B136 22 0.74 0.3 - 4.5 -
Shield B136 10 0 0 -
Ground B136 11 0 0 -
Intake air temperature sensor B136 31 3.15 - 3.33 3.15 - 3.33 Ambient air temperature
Front oxygen (A/F) sensor LH Signal (+) B135 8 2.8 - 3.2 2.8 - 3.2 -
Signal (-) B135 20 2.4 - 2.7 2.4 - 2.7 -
Shield B136 9 0 0 -
Front oxygen (A/F) sensor heater LH Signal 1 B135 2 12 - 14 - Waveform
Signal 2 B135 1 12 - 14 - Waveform
Front oxygen (A/F) sensor RH Signal (+) B136 19 2.8 - 3.2 2.8 - 3.2 -
Signal (-) B136 18 2.4 - 2.7 2.4 - 2.7 -
Shield B136 9 0 0 -
Front oxygen (A/F) sensor heater RH Signal 1 B136 6 12 - 14 - Waveform
Signal 2 B136 5 12 - 14 - Waveform
Rear oxygen sensor LH Signal B135 28 0 0-0.9 -
Shield B136 9 0 0 -
Rear oxygen sensor heater LH signal B135 5 12 - 14 - Waveform
Rear oxygen sensor RH Signal B136 20 0 0 - 0.9 -
Shield B136 9 0 0 -
Rear oxygen sensor heater RH signal B135 6 12 - 14 - Waveform
Immobilizer Communication 1 B135 25 - - -
Communication 2 B135 24 - - -
Fuel pump control unit Control B136 33 0 or 5 0 or 5 Waveform
Diagnostic signal B135 10 0 or 10 - 13 12 - 14 -
Brake switch 1 (brake switch) B136 15 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) B136 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 B136 12 When operating nothing: 3.5 - 4.5
When operating RES/ACC: 2.5 - 3.5
When operating vehicle 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 vehicle distance setting: 1.5 - 2.5
When operating SET/COAST: 0.5 - 1.5
When operating CANCEL: 0 - 0.5
-
Cruise control main switch B136 13 ON: 0
OFF: 5
ON: 0
OFF: 5
-
Intake oil flow control solenoid valve LH Signal (+) B134 17 0 0.6 -
Signal (-) B134 16 0 0 -
Intake oil flow control solenoid valve RH Signal (+) B134 34 0 0.6 -
Signal (-) B134 27 0 0 -
Exhaust oil flow control solenoid valve LH Signal (+) B134 5 0 1.9 -
Signal (-) B134 14 0 0 -
Exhaust oil flow control solenoid valve RH Signal (+) B134 7 0 1.9 -
Signal (-) B134 15 0 0 -
Oil temperature sensor signal B137 21 1.0 - 1.4 1.0 - 1.4 After engine is warmed up.
Power steering oil pressure switch B137 28 ON: 1 or less
OFF: 10 - 13
ON: 1 or less
OFF: 12 - 14
-
SSM communication B135 14 1 or less ↔ 4 or more 1 or less ↔ 4 or more -
Ground Sensor B134 29 0 0 -
B135 30 0 0 -
Engine 1 B134 6 0 0 -
Engine 2 B134 4 0 0 -
Engine 3 B134 3 0 0 -
Engine 4 B137 1 0 0 -
Engine 5 B137 3 0 0 -
Engine 6 B137 5 0 0 -
Body B136 4 0 0 -
CAN communication (Hi) B136 17 Pulse signal -
(Lo) B136 28 Pulse signal -
Fuel tank pressure sensor B136 21 2.3 - 2.7 2.3 - 2.7 Value after detaching and attaching the fuel filler cap
Drain valve B135 4 ON: 1 or less
OFF: 10 - 13
ON: 1 or less
OFF: 12 - 14
-
Fuel temperature sensor B136 23 2.5 - 3.8 2.5 - 3.8 Ambient temperature: 25°C (77°F)
Brake vacuum sensor B137 9 1 - 3.8 1 - 3.8 -
Brake vacuum pump B136 8 0 (When pump is OFF) 0 (When pump is OFF) -
10 - 13 (When pump is ON) 12 - 14 (When pump is ON)
Brake vacuum pump relay B135 27 10 - 13 (When pump is OFF) 12 - 14 (When pump is OFF) -
0 (When pump is ON) 0 (When pump is ON)

Input/output name: 

Measuring condition: 

Fig 2: Sensors I/O Signal Graph
G06647994Courtesy of SUBARU OF AMERICA, INC.
Fig 3: Engine Control Module (ECM) I/O Signal Circuit Diagram (1 Of 5)
G07925134Courtesy of SUBARU OF AMERICA, INC.
Fig 4: Engine Control Module (ECM) I/O Signal Circuit Diagram (2 Of 5)
G07925135Courtesy of SUBARU OF AMERICA, INC.
Fig 5: Engine Control Module (ECM) I/O Signal Circuit Diagram (3 Of 5)
G07925136Courtesy of SUBARU OF AMERICA, INC.
Fig 6: Engine Control Module (ECM) I/O Signal Circuit Diagram (4 Of 5)
G07925137Courtesy of SUBARU OF AMERICA, INC.
Fig 7: Engine Control Module (ECM) I/O Signal Circuit Diagram (5 Of 5)
G07925138Courtesy of SUBARU OF AMERICA, INC.