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Electrical Specification

Fig 1: Identifying Control Module Connector Terminals
G11257253Courtesy of SUBARU OF AMERICA, INC.
Description Connect or No. Terminal No. Signal (V) Note
Ignition SW ON After warm-up (at engine OFF) Engine ON After warm-up (at idle)
Crankshaft position sensor (+) signal E158 66 0 0 or 5 Waveforms 1 and 8
Power supply E158 40 0 5 -
Ground E158 53 0 0 -
Intake camshaft position sensor RH E158 78 0 or 5 0 or 5 Waveform 1
Intake camshaft position sensor LH E158 77 0 or 5 0 or 5 Waveform 1
Exhaust camshaft position sensor RH E158 65 0 or 5 0 or 5 Waveform 1
Exhaust camshaft position sensor LH E158 64 0 or 5 0 or 5 Waveform 1
Camshaft position sensor ground E158 51 0 0 -
Front oxygen (A/F) sensor (+) signal E158 60 2.8 - 3.2 2.8 - 3.2 Waveform 2
(-) signal E158 73 1.3 - 3.1 2.4 - 2.7 Waveform 2
Heater signal E158 88 Battery voltage 0 or battery voltage Waveform 4
Shield E158 47 0 0 -
Rear oxygen sensor (+) signal B134 33 0.1 - 0.3 Waveform Waveform 3
(-) signal B134 44 1.4 - 1.5 Waveform Waveform 3
Heater signal B134 22 Battery voltage 0 or battery voltage Waveform 4
Air flow sensor Signal B134 32 0.6 - 1 0 or 5 -
Power supply B134 53 0 5 -
Intake air temperature sensor signal B134 43 0.3 - 4.6 0.3 - 4.6 -
Engine coolant temperature sensor signal E158 45 1 - 1.4 0 -
Engine oil temperature sensor signal E158 46 1 - 1.4 1 - 1.4 -
Manifold absolute pressure sensor signal E158 69 3.5 - 4.8 1.4 - 2.1 -
Knock sensor 1 Signal E158 4 2.4 - 2.6 2.1 - 2.8 -
Ground E158 17 0 0 -
Knock sensor 2 Signal E158 5 2.4 - 2.6 2.4 -
Ground E158 18 0 0 -
Knock sensor Shield E158 16 0 1.3 -
Accelerator pedal position sensor Main signal B134 66 Fully closed: 0.3 - 1.1
Fully open: 2.3 - 3.8		 Fully closed: 0.3 - 1.4 Fully open: 2.4 - 3.8 -
Main power supply B134 51 5 5 -
Main ground B134 55 0 0 -
Sub signal B134 64 Fully closed: 0.3 - 1.1
Fully open: 2.3 - 3.8		 Fully closed: 0.3 - 1.4
Fully open: 2.3 - 3.8		 -
Sub power supply B134 52 5 5 -
Sub ground B134 65 0 0 -
Tumble generator valve RH Position signal E158 28 Waveform Waveform Waveform 5
Motor open E158 102 Waveform Waveform Waveform 5
Motor closed E158 111 Waveform Waveform Waveform 5
Tumble generator valve LH Position signal E158 42 Waveform Waveform Waveform 6
Motor open E158 101 Waveform Waveform Waveform 6
Motor closed E158 110 Waveform Waveform Waveform 6
Intake oil control solenoid RH E158 99 Battery voltage 0 or battery voltage Waveform 7
Intake oil control solenoid LH E158 100 Battery voltage 0 or battery voltage Waveform 7
Exhaust oil control solenoid RH E158 108 Battery voltage 0 or battery voltage Waveform 7
Exhaust oil control solenoid LH E158 109 Battery voltage 0 or battery voltage Waveform 7
Purge control solenoid valve E158 9 Battery voltage Battery voltage Operating: 0
Leak check valve assembly Switching valve B134 11 Battery voltage Battery voltage Operating: 0
Pressure sensor B134 61 1 - 4 1 - 4 When ignition switch is turned to ON: atmospheric pressure
Vacuum pump B134 10 Battery voltage Battery voltage Operating: 0
Ignition coil #1 E158 10 0 0 or 5 Waveform 8
#2 E158 11 0 0 or 5 Waveform 8
#3 E158 12 0 0 or 5 Waveform 8
#4 E158 13 0 0 or 5 Waveform 8
Fuel pressure sensor Signal 1 E158 56 1 1 -
Signal 2 E158 50 1 1 -
High-pressure fuel pump (+) signal E158 105 - - -
(-) signal E158 114 - - -
Fuel injector #1(+) E158 87 Battery voltage - -
#1(-) E158 96 0 -
#2(+) E158 86 Battery voltage -
#2(-) E158 95 0 -
#3(+) E158 84 Battery voltage -
#3(-) E158 93 0 -
#4(+) E158 85 Battery voltage -
#4(-) E158 94 0 -
EGR control valve Signal 1 E158 98 0 or battery voltage 0 or battery voltage -
Signal 2 E158 97 0 or battery voltage 0 or battery voltage -
Signal 3 E158 107 0 or battery voltage Battery voltage -
Signal 4 E158 106 0 or battery voltage Battery voltage -
Electronic throttle control sensor Main signal E158 29 Approx. 0.7 Approx. 0.6 - 1.2 Fully closed: Approx. 0.6 - 1.2
Fully open: Approx. 3.8 - 4.4
Sub signal E158 43 Approx. 1.6 Approx. 1.5 - 1.7 Fully closed: Approx. 1.4 - 2.0
Fully open: Approx. 4.0 - 4.6
Shield E158 44 0 0 -
Motor (+) E158 83 0 or battery voltage 0 or battery voltage Drive frequency: 500 Hz
Waveform 7
Motor (-) E158 92 Duty waveform 0 or battery voltage Drive frequency: 500 Hz
Power supply E158 27 Battery voltage 5 -
Ground E158 30 0 0 -
A/C relay control B134 18 ON: 0.5V or less OFF: Battery voltage Battery voltage -
A/C switch B134 47 ON: Battery voltage OFF: 0 ON: Battery voltage OFF: 0 Manual A/C model
Blower fan switch B134 48 ON: 0 OFF: Battery voltage ON: 0 OFF: Battery voltage Manual A/C model
A/C middle pressure switch B134 49 ON: 0 OFF: Battery voltage Battery voltage -
Self-shutoff relay control B134 12 0 0 -
Starter relay control B134 2 Waveform Battery voltage Model without push button start Waveform 9 Model with push button start Waveform 10
Starter cut relay control B134 24 Waveform Battery voltage Model without push button start Waveform 9 Model with push button start Waveform 10
Fuel pump relay control B134 31 Battery voltage 0 ON: 0 OFF: Battery voltage
Main fan relay control B134 30 Battery voltage Battery voltage ON: 0
Sub fan relay control B134 19 Battery voltage Battery voltage ON: 0
Ignition switch B134 56 Battery voltage Battery voltage -
Neutral position switch B134 39 ON: 0 OFF: Battery voltage 0 -
Delivery mode switch B134 57 Battery voltage Battery voltage When fuse is installed: 0
Oil level switch E158 57 0 0 Oil level LOW: Battery voltage
Starter switch B134 25 Waveform 0 Model without push button start Waveform 9 Model with push button start Waveform 10
Starter switch 2 B134 27 Waveform 0 Model without push button start Waveform 9 Model with push button start Waveform 10
Accessory cut request B134 34 Waveform Battery voltage Model with push button start Waveform 10
Engine speed output B134 17 0 0 or battery voltage Model with push button start Waveform 10
Clutch start switch B134 37 When clutch pedal is depressed: Battery voltage When clutch pedal is released: 0 When clutch pedal is depressed: Battery voltage When clutch pedal is released: 0 MT model (with push button start)
Clutch switch B134 28 When clutch pedal is depressed: 0 When clutch pedal is released: Battery voltage When clutch pedal is depressed: 0 When clutch pedal is released: Battery voltage MT model
Brake switch 1 (Brake switch) B134 36 When brake pedal is depressed: 0 When brake pedal is released: Battery voltage Battery voltage -
Brake switch 2 (Stop light switch) B134 38 When brake pedal is depressed: Battery voltage When brake pedal is released: 0 0 -
Cruise control main switch B134 35 ON: 0 OFF: 5 5 Model without EyeSight
Cruise control command switch B134 62 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		 5 Model without EyeSight
LIN communication B134 5 - - -
Immobilizer communication B134 6 - - -
CAN communication HI B134 3 - - -
LO B134 14 - - -
Control module power supply B134 67 Battery voltage Battery voltage -
B134 68 Battery voltage Battery voltage -
Backup power supply B134 1 Battery voltage Battery voltage Ignition switch OFF: Battery voltage
Sensor power supply E158 41 5 5 -
Ground Body B134 50 0 0 -
Sensor B134 54 0 0 -
E158 54 0 0 -
Engine 1 B134 71 0 0 -
Engine 2 B134 72 0 0 -
Engine 3 B134 69 0 0 -
Engine 4 B134 70 0 0 -
NOTE:
  • After engine is warmed up, attach the check board for measurement.
  • Set the select lever in "P" range or "N" range, or the shift lever in neutral.
  • Turn the A/C to OFF.
  • Turn all the accessory switches to OFF.
  • Waveforms vary depending on a measurement environment and vehicle condition.
  • Oscilloscope waveform illustrated here is an example for reference. Noise and chattering in waveform are omitted.
  1. Waveform 1
    Fig 2: Engine Module Waveform (1)
    G11257254Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Crankshaft position sensor (+) signal (E158) No. 66 (+) - Engine ground 3 (B134) No. 69 (-):
    Intake camshaft position sensor RH (E158) No. 78 (+) - Engine ground 3 (B134) No. 69 (-):
    Intake camshaft position sensor LH (E158) No. 77 (+) - Engine ground 3 (B134) No. 69 (-):
    Exhaust camshaft position sensor RH (E158) No. 65 (+) - Engine ground 3 (B134) No. 69 (-):
    Exhaust camshaft position sensor LH (E158) No. 64 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition While engine idling
  2. Waveform 2
    Fig 3: Engine Module Waveform (2)
    G11257255Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Front oxygen (A/F) sensor (E158) No. 60 (+) - Engine ground 3 (B134) No. 69 (-):
    Front oxygen (A/F) sensor (E158) No. 73 (-) - Engine ground 3 (B134) No. 69 (-):
    Accelerator pedal position sensor main signal (B134) No. 66 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition (a) accelerator pedal fully closed (b) accelerator pedal half open (c) accelerator pedal fully opened
  3. Waveform 3
    Fig 4: Engine Module Waveform (3)
    G11257256Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Rear oxygen sensor (B134) No. 33 (+) - Rear oxygen sensor (B134) No. 44 (-):
    Accelerator pedal position sensor main signal (B134) No. 66 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition (a) accelerator pedal fully closed (b) accelerator pedal half open (c) accelerator pedal fully opened
  4. Waveform 4
    Fig 5: Engine Module Waveform (4)
    G11257257Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Front oxygen (A/F) sensor heater (E158) No. 88 (+) - Engine ground 3 (B134) No. 69 (-):
    Rear oxygen sensor heater (B134) No. 22 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition While engine idling
  5. Waveform 5
    Fig 6: Engine Module Waveform (5)
    G11257258Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Tumble generator valve RH position signal (E158) No. 28 (+) - Engine ground 3 (B134) No. 69 (-):
    Tumble generator valve RH motor open (E158) No. 102 (+) - Engine ground 3 (B134) No. 69 (-):
    Tumble generator valve RH motor closed (E158) No. 111 (+) - Engine ground 3 (B134) No. 69 (-):
    Accelerator pedal position sensor main signal (B134) No. 66 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition (a) Accelerator pedal fully closed (b) Accelerator pedal fully opened
  6. Waveform 6
    Fig 7: Engine Module Waveform (6)
    G11257259Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Tumble generator valve LH position signal (E158) No. 42 (+) - Engine ground 3 (B134) No. 69 (-):
    Tumble generator valve LH motor open (E158) No. 101 (+) - Engine ground 3 (B134) No. 69 (-):
    Tumble generator valve LH motor closed (E158) No. 110 (+) - Engine ground 3 (B134) No. 69 (-):
    Accelerator pedal position sensor main signal (B134) No. 66 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition (a) Accelerator pedal fully closed (b) Accelerator pedal fully opened
  7. Waveform 7
    Fig 8: Engine Module Waveform (7)
    G11257260Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Intake oil control solenoid RH (E158) No. 99 (+) - Engine ground 3 (B134) No. 69 (-):
    Intake oil control solenoid LH (E158) No. 100 (+) - Engine ground 3 (B134) No. 69 (-):
    Exhaust oil control solenoid RH (E158) No. 108 (+) - Engine ground 3 (B134) No. 69 (-):
    Exhaust oil control solenoid LH (E158) No. 109 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition While engine idling
  8. Waveform 8
    Fig 9: Engine Module Waveform (8)
    G11257261Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Crankshaft position sensor (+) signal (E158) No. 66 (+) - Engine ground 3 (B134) No. 69 (-):
    Ignition control #1 (E158) No. 10 (+) - Engine ground 3 (B134) No. 69 (-):
    Ignition control #2 (E158) No. 11 (+) - Engine ground 3 (B134) No. 69 (-):
    Ignition control #3 (E158) No. 12 (+) - Engine ground 3 (B134) No. 69 (-):
    Ignition control #4 (E158) No. 13 (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition While engine idling
  9. Waveform 9
    Fig 10: Engine Module Waveform (9)
    G11257262Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter switch (B134) No. 25 (+) - Engine ground 3 (B134) No. 69 (-):
    Starter switch 2 (B134) No. 27 (+) - Engine ground 3 (B134) No. 69 (-):
    Starter cut relay control (B134) No. 24 (+) - Engine ground 3 (B134) No. 69 (-):
    Starter relay control (B134) No. 2 (+) - Engine ground 3 (B134) No. 69 (-):
    Battery voltage (Battery terminal) (+) - Engine ground 3 (B134) No. 69 (-):
    Measuring condition When engine is started
  10. Waveform 10
    Fig 11: Engine Module Waveform (10)
    G11257263Courtesy of SUBARU OF AMERICA, INC.
Measured terminal Starter switch (B134) No. 25 (+) - Engine ground 3 (B134) No. 69 (-):
Starter switch 2 (B134) No. 27 (+) - Engine ground 3 (B134) No. 69 (-):
Accessory cut request (B134) No. 34 (+) - Engine ground 3 (B134) No. 69 (-):
Starter cut relay control (B134) No. 24 (+) - Engine ground 3 (B134) No. 69 (-):
Starter relay control (B134) No. 2 (+) - Engine ground 3 (B134) No. 69 (-):
Engine speed output (B134) No. 17 (+) - Engine ground 3 (B134) No. 69 (-):
Battery voltage (Battery terminal) (+) - Engine ground 3 (B134) No. 69 (-):
Measuring condition When engine is started
Fig 12: Engine Module Communication Diagram (1 Of 4)
G11257264Courtesy of SUBARU OF AMERICA, INC.
Fig 13: Engine Module Communication Diagram (2 Of 4)
G11257265Courtesy of SUBARU OF AMERICA, INC.
Fig 14: Engine Module Communication Diagram (3 Of 4)
G11257266Courtesy of SUBARU OF AMERICA, INC.
Fig 15: Engine Module Communication Diagram (4 Of 4)
G11257267Courtesy of SUBARU OF AMERICA, INC.
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