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Electrical Specification

G14614355Courtesy of SUBARU OF AMERICA, INC.
Description Connector 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 Power supply E52 30 5 5 -
Signal E52 4 0 or 5 0 or 5 Waveforms 1 and 8
Ground E52 5 0 0 -
Intake camshaft position sensor RH E51 56 0 or 5 0 or 5 Waveform 1
LH E51 57 0 or 5 0 or 5 Waveform 1
Exhaust camshaft position sensor RH E51 24 0 or 5 0 or 5 Waveform 1
LH E51 40 0 or 5 0 or 5 Waveform 1
Camshaft position sensor ground E51 41 0 0 -
Front oxygen (A/F) sensor IP (+) signal E51 52 0 - battery voltage 2 - 4
  • Waveform 2
  • When the ignition switch is turned to ON and after engine is warmed up (engine is OFF), voltage varies depending on the sensor temperature.
VS (+) signal E51 51 0 - battery voltage 3 - 5
  • Waveform 2
  • When the ignition switch is turned to ON and after engine is warmed up (engine is OFF), voltage varies depending on the sensor temperature.
COM signal E51 53 0 - battery voltage 3 - 4 When the ignition switch is turned to ON and after engine is warmed up (engine is OFF), voltage varies depending on the sensor temperature.
Heater signal B61 32 Battery voltage 0 or battery voltage Waveform 4
Rear oxygen sensor (+) signal E51 5 2 - 3 2 - 3 Waveform 3
(-) signal E51 4 2 - 3 2 - 3 -
Heater signal E52 3 Battery voltage 0 or battery voltage Waveform 4
Air flow sensor signal B61 62 0 or 5 0 or 5 Waveform 13
Intake air temperature sensor (Integrated with air flow sensor) B61 34 2 - 3 2 - 3 -
Engine coolant temperature sensor E51 49 1 - 3 1 - 3 -
Engine oil temperature sensor E51 36 1 - 3 1 - 3 -
Manifold absolute pressure sensor E51 35 2 1 -
Intake air temperature sensor (Integrated with manifold absolute pressure sensor) E51 34 2 - 3 2 - 3 -
Fuel pressure sensor Main signal E51 22 1 - 1.6 1 -
Sub signal E51 54 3 - 3.6 3 - 3.6 -
CPC pressure sensor E51 50 1 - 4 1 - 4 -
Knock sensor RH E51 3 2.5 2.5 -
LH E51 2 2.5 2.5 -
Accelerator pedal position sensor Main power supply B61 51 5 5 -
Main signal B61 35 Fully closed: 0.4 - 1
Fully open: 2.4 - 3.7		 Fully closed: 0.4 - 1
Fully open: 2.4 - 3.7		 Waveforms 2, 3, 5 and 6
Main ground B61 19 0 0 -
Sub power supply B61 49 5 5 -
Sub signal B61 33 Fully closed: 0.4 - 1
Fully open: 2.4 - 3.7		 Fully closed: 0.4 - 1
Fully open: 2.4 - 3.7		 -
Sub ground B61 17 0 0 -
Tumble generator valve actuator RH Position signal E51 38 1 1 Fully closed: 1
Fully opened: 3
Waveform 5
Motor open E51 44 0 0 When in operation: Waveform 5
Motor closed E51 43 0 0 When in operation: Waveform 5
Tumble generator valve actuator LH Position signal E51 6 1 1 Fully closed: 1
Fully opened: 3
Waveform 6
Motor open E51 46 0 0 When in operation: Waveform 6
Motor closed E51 45 0 0 When in operation: Waveform 6
Intake oil control solenoid RH E51 14 Battery voltage 0 or battery voltage Drive frequency: 125
Hz
Waveform 7
LH E51 13 Battery voltage 0 or battery voltage Drive frequency: 125
Hz
Waveform 7
Exhaust oil control solenoid RH E51 12 Battery voltage 0 or battery voltage Drive frequency: 125
Hz
Waveform 7
LH E51 11 Battery voltage 0 or battery voltage Drive frequency: 125
Hz
Waveform 7
Purge control valve solenoid E52 19 Battery voltage Battery voltage When in operation: 0 or battery voltage
Ignition coil #1 E51 10 0 0 or 5 Waveform 8
#2 E51 26 0 0 or 5 Waveform 8
#3 E51 42 0 0 or 5 Waveform 8
#4 E51 58 0 0 or 5 Waveform 8
EGR control valve A (+) E51 62 0 or battery voltage 0 or battery voltage -
A (-) E51 60 0 or battery voltage 0 or battery voltage -
B (+) E51 61 0 or battery voltage 0 or battery voltage -
B (-) E51 59 0 or battery voltage 0 or battery voltage -
Leak check valve assembly Switching valve B61 13 Battery voltage Battery voltage Operating: 0
Vacuum pump B61 30 Battery voltage Battery voltage Operating: 0
Pressure sensor B61 2 1 - 4 1 - 4 When ignition switch is turned to ON: atmospheric pressure
Fuel pump control Control signal B61 11 ON: 0 or battery voltage OFF: 0 0 or battery voltage Waveform 9
Diagnostic signal B61 36 ON: Battery voltage OFF: 0 Battery voltage -
High-pressure fuel pump HI E52 1 - - Measurement prohibited
LO E52 9 - - Measurement prohibited
Fuel injector Power supply B61 16 Battery voltage Battery voltage -
#1 (+) E51 16 0 - Measurement prohibited while the engine is running
#1 (-) E51 15 0 -
#2 (+) E51 32 0 -
#2 (-) E51 31 0 -
#3 (+) E51 48 0 -
#3 (-) E51 47 0 -
#4 (+) E51 64 0 -
#4 (-) E51 63 0 -
Electronic throttle control Power supply E52 22 5 5 -
Main signal E52 31 Fully closed: Approx. 0.7 Fully open: Approx. 3.9 Fully closed: Approx. 0.7 Fully open: Approx. 3.9 -
Sub signal E52 15 Fully closed:
Approx. 4.4
Fully open: 1.1		 Fully closed:
Approx. 4.4
Fully open: 1.1		 -
Ground E52 23 0 0 -
Motor (+) E51 30 0 or battery voltage 0 or battery voltage Drive frequency: 10 kHz
Motor (-) E51 29 0 or battery voltage 0 or battery voltage Drive frequency: 10 kHz
Electronic throttle control motor power supply B61 64 Battery voltage Battery voltage -
Electronic throttle control relay control B61 60 0 0 -
Electronic wastegate valve Position signal E51 37 1 - 1.4 1 - 1.4 -
Motor (+) E52 18 0 or battery voltage 0 or battery voltage -
Motor (-) E52 26 0 or battery voltage 0 or battery voltage -
Electronic air by-pass valve E51 9 Battery voltage Battery voltage -
Radiator main fan Control signal B61 59 0 or battery voltage 0 or battery voltage ON
Diagnostic signal B61 9 0 or battery voltage 0 or battery voltage -
Main fan relay control B61 46 0 0 -
Radiator sub fan Control signal B61 27 0 or battery voltage 0 or battery voltage ON
Diagnostic signal B61 41 0 or battery voltage 0 or battery voltage -
Sub fan relay control B61 45 0 0 -
Self-shutoff relay control B61 29 0 0 -
Starter relay control B61 12 Battery voltage Battery voltage Models without push button start: Waveform 10 Models with push button start: Waveform 12
Starter cut relay control B61 44 Battery voltage Battery voltage Models without push button start: Waveform 10 Models with push button start: Waveform 11 and 12
Starter switch B61 55 0 0 Models without push button start: Waveform 10 Models with push button start: Waveform 11
Starter switch 2 B61 53 0 0 Models without push button start: Waveform 10 Models with push button start: Waveform 11
Accessory cut request B61 43 Battery voltage Battery voltage Models with push button start: Waveform 11
Clutch start switch B61 56 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
Clutch switch B61 24 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) B61 8 When brake pedal is depressed: 0 When brake pedal is released: Battery voltage When brake pedal is depressed: 0 When brake pedal is released: Battery voltage -
Brake switch 2 (Stop light switch) B61 39 When brake pedal is depressed: Battery voltage When brake pedal is released: 0 When brake pedal is depressed: Battery voltage When brake pedal is released: 0 -
Neutral position switch Signal E52 12 ON: 0
OFF: Battery
voltage		 ON: 0
OFF: Battery
voltage		 -
Ground E52 13 0 0 -
Oil level switch E51 23 0 0 Oil level LOW: 5
Ignition switch B61 54 Battery voltage Battery voltage Models with push button start: Waveform 12
Delivery mode switch B61 37 Battery voltage Battery voltage When the fuse is installed: 0
Blow-by leak diagnosis E51 39 0 0 At the time of open circuit (fault): 5
CAN communication (P/U1 CAN) HI B61 6 - - -
LO B61 5 - - -
CAN communication ((I)_P/U2 CAN) HI B61 22 - - -
LO B61 21 - - -
LIN communication B61 20 - - -
Immobilizer communication B61 4 - - -
Control module power supply B61 15 Battery voltage Battery voltage -
B61 31 Battery voltage Battery voltage -
Backup power supply B61 14 Battery voltage Battery voltage -
Sensor power supply B61 50 5 5 -
E51 1 5 5 -
E51 17 5 5 -
Ground Sensor B61 61 0 0 -
E51 33 0 0 -
Engine 1 B61 48 0 0 -
Engine 2 B61 47 0 0 -
Engine 3 B61 63 0 0 -
Engine 4 E52 10 0 0 -
Engine 5 E52 2 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
    G13202299Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Crankshaft position sensor signal (E52) No. 4 (+) - Engine ground 3 (B61) No. 63 (-):
    Intake camshaft position sensor RH (E51) No. 56 (+) - Engine ground 3 (B61) No. 63 (-):
    Intake camshaft position sensor LH (E51) No. 57 (+) - Engine ground 3 (B61) No. 63 (-):
    Exhaust camshaft position sensor RH (E51) No. 24 (+) - Engine ground 3 (B61) No. 63 (-):
    Exhaust camshaft position sensor LH (E51) No. 40 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition While engine idling
  2. Waveform 2
    G13866166Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Front oxygen (A/F) sensor IP (+) signal (E51) No. 52 (+) - Engine ground 3 (B61) No. 63 (-):
    Front oxygen (A/F) sensor VS (+) signal (E51) No. 51 (+) - Engine ground 3 (B61) No. 63 (-):
    Accelerator pedal position sensor main signal (B61) No. 35 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition (a) accelerator pedal fully closed (b) accelerator pedal half open (c) accelerator pedal fully opened
  3. Waveform 3
    G13627317Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Rear oxygen sensor (+) signal (E51) No. 5 (+) - Rear oxygen sensor (-) signal (E51) No. 4 (-):
    Accelerator pedal position sensor main signal (B61) No. 35 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition (a) Accelerator pedal fully closed (b) Accelerator pedal fully opened
  4. Waveform 4
    G13202302Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Front oxygen (A/F) sensor heater signal (B61) No. 32 (+) - Engine ground 3 (B61) No. 63 (-):
    Rear oxygen sensor heater signal (E52) No. 3 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition While engine idling
  5. Waveform 5
    G13202303Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Tumble generator valve actuator RH position signal (E51) No. 38 (+) - Engine ground 3 (B61) No. 63 (-):
    Tumble generator valve actuator RH motor open (E51) No. 44 (+) - Engine ground 3 (B61) No. 63 (-):
    Tumble generator valve actuator RH motor closed (E51) No. 43 (+) - Engine ground 3 (B61) No. 63 (-):
    Accelerator pedal position sensor main signal (B61) No. 35 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition (a) Accelerator pedal fully closed (b) Accelerator pedal fully opened
  6. Waveform 6
    G13202304Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Tumble generator valve actuator LH position signal (E51) No. 6 (+) - Engine ground 3 (B61) No. 63 (-):
    Tumble generator valve actuator LH motor open (E51) No. 46 (+) - Engine ground 3 (B61) No. 63 (-):
    Tumble generator valve actuator LH motor closed (E51) No. 45 (+) - Engine ground 3 (B61) No. 63 (-):
    Accelerator pedal position sensor main signal (B61) No. 35 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition (a) Accelerator pedal fully closed (b) Accelerator pedal fully opened
  7. Waveform 7
    G13202305Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Intake oil control solenoid RH (E51) No. 14 (+) - Engine ground 3 (B61) No. 63 (-):
    Intake oil control solenoid LH (E51) No. 13 (+) - Engine ground 3 (B61) No. 63 (-):
    Exhaust oil control solenoid RH (E51) No. 12 (+) - Engine ground 3 (B61) No. 63 (-):
    Exhaust oil control solenoid LH (E51) No. 11 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition While engine idling
  8. Waveform 8
    G13202306Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Crankshaft position sensor signal (E52) No. 4 (+) - Engine ground 3 (B61) No. 63 (-):
    Ignition coil #1 (E51) No. 10 (+) - Engine ground 3 (B61) No. 63 (-):
    Ignition coil #2 (E51) No. 26 (+) - Engine ground 3 (B61) No. 63 (-):
    Ignition coil #3 (E51) No. 42 (+) - Engine ground 3 (B61) No. 63 (-):
    Ignition coil #4 (E51) No. 58 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition While engine idling
  9. Waveform 9
    G13866173Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Fuel pump control (B61) No. 11 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition While engine idling
  10. Waveform 10
    G13202308Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter switch (B61) No. 55 (+) - Engine ground 3 (B61) No. 63 (-):
    Starter switch 2 (B61) No. 53 (+) - Engine ground 3 (B61) No. 63 (-):
    Starter cut relay control (B61) No. 44 (+) - Engine ground 3 (B61) No. 63 (-):
    Starter relay control (B61) No. 12 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition When engine is started
  11. Waveform 11
    G13627325Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter switch (B61) No. 55 (+) - Engine ground 3 (B61) No. 63 (-):
    Starter switch 2 (B61) No. 53 (+) - Engine ground 3 (B61) No. 63 (-):
    Starter cut relay control (B61) No. 44 (+) - Engine ground 3 (B61) No. 63 (-):
    Accessory cut request (B61) No. 43 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition When engine is started
  12. Waveform 12
    G16541983Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter cut relay control (B61) No. 44 (+) - Engine ground 3 (B61) No. 63 (-):
    Starter relay control (B61) No. 12 (+) - Engine ground 3 (B61) No. 63 (-):
    Ignition switch (B61) No. 54 (+) - Engine ground 3 (B61) No. 63 (-):
    Measuring condition When engine is started
  13. Waveform 13
G12399904Courtesy of SUBARU OF AMERICA, INC.
Measured terminal Air flow sensor signal (B61) No. 62 (+) - Engine ground 3 (B61) No. 63 (-):
Measuring condition While engine idling
G00674225Courtesy of SUBARU OF AMERICA, INC.
G00674226Courtesy of SUBARU OF AMERICA, INC.
G14614371Courtesy of SUBARU OF AMERICA, INC.
G14614372Courtesy of SUBARU OF AMERICA, INC.
G14614373Courtesy of SUBARU OF AMERICA, INC.
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