2020 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE

Electrical Specification

WARNING: This page is about a different variant/trim than selected.
G13627314Courtesy 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 Power supply E52 8 5 5  
Signal E52 14 0 or 5 0 or 5 Waveforms 1 and 8
Ground E52 22 0 0  
Intake camshaft position sensor RH E52 20 0 or 5 0 or 5 Waveform 1
LH E52 29 0 or 5 0 or 5 Waveform 1
Exhaust camshaft position sensor RH E52 21 0 or 5 0 or 5 Waveform 1
LH E52 13 0 or 5 0 or 5 Waveform 1
Camshaft position sensor ground E52 30 0 0 -
Front oxygen (A/F) sensor IP (+) signal E51 43 2 - 3 2 - 4 Waveform 2
VS (+) signal E51 56 2 - 3 3 - 5 Waveform 2
COM signal E51 44 2 - 3 3 - 4  
Heater signal E51 65 Battery voltage 0 or battery voltage Waveform 4
Rear oxygen sensor (+) signal E51 31 2 - 3 2 - 3 Waveform 3
(-) signal E51 30 2 - 3 2 - 3  
Heater signal E51 27 Battery voltage 0 or battery voltage Waveform 4
Air flow sensor Signal B61 63 0 1 Waveform 13
Ground B61 62 0 0 -
Intake air temperature sensor
(Integrated with air flow sensor)		 B61 3 2 - 3 2 - 3 -
Engine coolant temperature sensor E52 15 1 - 3 1 - 3 -
Engine oil temperature sensor E52 24 1 - 3 1 - 3 -
Manifold absolute pressure sensor E51 47 2 1 -
Intake air temperature sensor
(Integrated with manifold absolute pressure sensor)		 E51 59 2 - 3 2 - 3 -
Fuel pressure sensor Main signal E51 60 1 - 1.6 1 -
Sub signal E51 58 3 - 3.6 3 - 3.6 -
CPC pressure sensor E52 16 1 - 4 1 - 4 -
Knock sensor RH E51 42 2.5 2.5 -
LH E51 55 2.5 2.5 -
Accelerator pedal position sensor Main power supply B61 1 5 5 -
Main signal B61 16 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 61 0 0 -
Sub power supply B61 14 5 5 -
Sub signal B61 42 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 48 0 0 -
Tumble generator valve RH Position signal E51 28 1 1 Fully closed: 1
Fully opened: 3
Waveform 5
Motor open E51 9 0 0 When in operation: Waveform 5
Motor closed E51 8 0 0 When in operation: Waveform 5
Tumble generator valve LH Position signal E51 29 1 1 Fully closed: 1
Fully opened: 3
Waveform 6
Motor open E51 11 0 0 When in operation: Waveform 6
Motor closed E51 10 0 0 When in operation: Waveform 6
Intake oil control solenoid RH E51 7 Battery voltage 0 or battery voltage Drive frequency: 125 Hz Waveform 7
LH E51 6 Battery voltage 0 or battery voltage Drive frequency: 125 Hz Waveform 7
Exhaust oil control solenoid RH E51 5 Battery voltage 0 or battery voltage Drive frequency: 125 Hz Waveform 7
LH E51 4 Battery voltage 0 or battery voltage Drive frequency: 125 Hz Waveform 7
Purge control solenoid valve E51 2 Battery voltage Battery voltage When in operation: 0 or battery voltage
Ignition control #1 E51 24 0 0 or 5 Waveform 8
#2 E51 37 0 0 or 5 Waveform 8
#3 E51 50 0 0 or 5 Waveform 8
#4 E51 63 0 0 or 5 Waveform 8
EGR control valve A (+) E51 25 0 or battery voltage 0 or battery voltage -
A (-) E51 51 0 or battery voltage 0 or battery voltage -
B (+) E51 38 0 or battery voltage 0 or battery voltage -
B (-) E51 64 0 or battery voltage 0 or battery voltage -
Leak check valve assembly Switching valve B61 5 Battery voltage Battery voltage Operating: 0
Vacuum pump B61 10 Battery voltage Battery voltage Operating: 0
Pressure sensor E52 31 1 - 4 1 - 4 When ignition switch is turned to ON: atmospheric pressure
Fuel pump control unit Control signal B61 25 ON: 0 or battery voltage OFF: 0 0 or battery voltage Waveform 9
Diagnostic signal B61 34 ON: Battery voltage OFF: 0 Battery voltage -
High-pressure fuel pump HI E52 3 - - Measurement prohibited
LO E52 4 - - Measurement prohibited
Fuel injector Power supply 1 E51 1 Battery voltage Battery voltage -
Power supply 2 E51 14 Battery voltage Battery voltage -
#1 (+) E52 2 0 - Measurement is prohibited while the engine is running.
#1 (-) E52 1 0 -
#2 (+) E52 10 0 -
#2 (-) E52 9 0 -
#3 (+) E52 18 0 -
#3 (-) E52 17 0 -
#4 (+) E52 26 0  
#4 (-) E52 25 0  
Electronic throttle control Power supply E51 49 5 5 -
Main signal E51 34 Fully closed: Approx. 0.7 Fully open: Approx. 3.9 Fully closed: Approx. 0.7 Fully open: Approx. 3.9 -
Sub signal E51 32 Fully closed: Approx. 4.4 Fully open: 1.1 Fully closed: Approx. 4.4 Fully open: 1.1 -
Ground E51 20 0 0 -
Motor (+) E51 13 0 0 or battery voltage Drive frequency: 10 kHz
Motor (-) E51 26 0 0 or battery voltage Drive frequency: 10 kHz
Electronic throttle control motor power supply B61 65 Battery voltage Battery voltage -
Electronic throttle control relay control B61 36 0 0 -
Electronic wastegate valve Position signal E52 23 1 - 1.4 1 - 1.4 -
Motor (+) E51 39 0 0 or battery voltage -
Motor (-) E51 52 0 0 or battery voltage -
Electronic air by-pass valve E51 12 Battery voltage Battery voltage -
Radiator main fan Control signal B61 23 0 0 ON
Diagnostic signal B61 18 Battery voltage Battery voltage -
Main fan relay control B61 12 0 0 -
Radiator sub fan Control signal B61 37 0 0 ON
Diagnostic signal B61 31 Battery voltage Battery voltage -
Sub fan relay control B61 50 0 0 -
Self-shutoff relay control B61 49 0 0 -
Starter relay control B61 9 Models without push button start: 0
Model with push button start: 3		 3 Models without push button start: Waveform 10
Models with push button start: Waveform 12
Starter cut relay control B61 8 Battery voltage Battery voltage Models without push button start: Waveform 10
Models with push button start: Waveform 11 and 12
Starter switch B61 4 0 0 Models without push button start: Waveform 10
Models with push button start: Waveform 11
Starter switch 2 B61 19 0 0 Models without push button start: Waveform 10
Models with push button start: Waveform 11
Accessory cut request B61 51 Battery voltage Battery voltage Models with push button start: Waveform 11
Engine speed output B61 24 0 0 or battery voltage Models with push button start: Waveform 12
Brake switch 1 (Brake switch) B61 35 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 20 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 E51 17 ON: 0
OFF: Battery voltage		 ON: 0
OFF: Battery voltage		 Switch is ON when select lever is in "P" range or "N" range.
Oil level switch E52 11 0 0 Oil level LOW: Battery voltage
Ignition switch B61 46 Battery voltage Battery voltage Model without push button start: - Models with push button start: Waveform 12
Delivery mode switch B61 21 Battery voltage Battery voltage When the fuse is installed: 0
Blow-by leak diagnosis E52 12 0 0 At the time of open circuit (fault): 5
DC/DC converter boost command E51 23 0 or battery voltage 0 or battery voltage -
Starter relay diagnosis B61 55 6 - 10 6 - 10 -
DC/DC converter voltage monitor B61 54 0 - 16 0 - 16 -
TCM start command input E51 19 Battery voltage Battery voltage -
LIN communication B61 56 - - -
Immobilizer communication B61 43 - - -
CAN communication (P/U1 CAN) HI B61 45 - - -
LO B61 58 - - -
CAN communication ((I)_P/U2 CAN) HI B61 44 - - -
LO B61 57 - - -
Control module power supply B61 13 Battery voltage Battery voltage -
B61 26 Battery voltage Battery voltage -
Backup power supply B61 39 Battery voltage Battery voltage -
Sensor power supply B61 2 5 5 -
B61 15 5 5 -
E51 62 5 5 -
E52 7 5 5 -
Ground Body B61 64 0 0 -
Sensor E51 22 0 0 -
E52 5 0 0 -
Engine 1 B61 52 0 0 -
Engine 2 B61 27 0 0 -
Engine 3 B61 40 0 0 -
Engine 4 E51 40 0 0 -
Engine 5 E51 53 0 0 -
Engine 6 E52 19 0 0 -
Engine 7 E52 27 0 0 -
Engine 8 B61 53 0 0 -
NOTE:
  • After engine is warmed up, attach the check board for measurement.
  • Place the select lever in "P" range or "N" range.
  • 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. 14 (+) - Engine ground 3 (B61) No. 40 (-):
    Intake camshaft position sensor RH (E52) No. 20 (+) - Engine ground 3 (B61) No. 40 (-):
    Intake camshaft position sensor LH (E52) No. 29 (+) - Engine ground 3 (B61) No. 40 (-):
    Exhaust camshaft position sensor RH (E52) No. 21 (+) - Engine ground 3 (B61) No. 40 (-):
    Exhaust camshaft position sensor LH (E52) No. 13 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition While engine idling
  2. Waveform 2
    G13627316Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Front oxygen (A/F) sensor IP (+) signal (E51) No. 43 (+) - Engine ground 3 (B61) No. 40 (-):
    Front oxygen (A/F) sensor VS (+) signal (E51) No. 56 (+) - Engine ground 3 (B61) No. 40 (-):
    Accelerator pedal position sensor main signal (B61) No. 16 (+) - Engine ground 3 (B61) No. 40 (-):
    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. 31 (+) - Rear oxygen sensor (-) signal (E51) No. 30 (-):
    Accelerator pedal position sensor main signal (B61) No. 16 (+) - Engine ground 3 (B61) No. 40 (-):
    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 (E51) No. 65 (+) - Engine ground 3 (B61) No. 40 (-):
    Rear oxygen sensor heater signal (E51) No. 27 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition While engine idling
  5. Waveform 5
    G13627319Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Tumble generator valve RH position signal (E51) No. 28 (+) - Engine ground 3 (B61) No. 40 (-):
    Tumble generator valve RH motor open (E51) No. 9 (+) - Engine ground 3 (B61) No. 40 (-):
    Tumble generator valve RH motor closed (E51) No. 8 (+) - Engine ground 3 (B61) No. 40 (-):
    Accelerator pedal position sensor main signal (B61) No. 16 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition (a) Accelerator pedal fully closed (b) Accelerator pedal fully opened
  6. Waveform 6
    G13627320Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Tumble generator valve LH position signal (E51) No. 29 (+) - Engine ground 3 (B61) No. 40 (-):
    Tumble generator valve LH motor open (E51) No. 11 (+) - Engine ground 3 (B61) No. 40 (-):
    Tumble generator valve LH motor closed (E51) No. 10 (+) - Engine ground 3 (B61) No. 40 (-):
    Accelerator pedal position sensor main signal (B61) No. 16 (+) - Engine ground 3 (B61) No. 40 (-):
    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. 7 (+) - Engine ground 3 (B61) No. 40 (-):
    Intake oil control solenoid LH (E51) No. 6 (+) - Engine ground 3 (B61) No. 40 (-):
    Exhaust oil control solenoid RH (E51) No. 5 (+) - Engine ground 3 (B61) No. 40 (-):
    Exhaust oil control solenoid LH (E51) No. 4 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition While engine idling
  8. Waveform 8
    G13202306Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Crankshaft position sensor signal (E52) No. 14 (+) - Engine ground 3 (B61) No. 40 (-):
    Ignition control #1 (E51) No. 24 (+) - Engine ground 3 (B61) No. 40 (-):
    Ignition control #2 (E51) No. 37 (+) - Engine ground 3 (B61) No. 40 (-):
    Ignition control #3 (E51) No. 50 (+) - Engine ground 3 (B61) No. 40 (-):
    Ignition control #4 (E51) No. 63 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition While engine idling
  9. Waveform 9
    G13202307Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Fuel pump control (B61) No. 25 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition When engine is started
  10. Waveform 10
    G13202308Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter switch (B61) No. 4 (+) - Engine ground 3 (B61) No. 40 (-):
    Starter switch 2 (B61) No. 19 (+) - Engine ground 3 (B61) No. 40 (-):
    Starter cut relay control (B61) No. 8 (+) - Engine ground 3 (B61) No. 40 (-):
    Starter relay control (B61) No. 9 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition When engine is started
  11. Waveform 11
    G13627325Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter switch (B61) No. 4 (+) - Engine ground 3 (B61) No. 40 (-):
    Starter switch 2 (B61) No. 19 (+) - Engine ground 3 (B61) No. 40 (-):
    Starter cut relay control (B61) No. 8 (+) - Engine ground 3 (B61) No. 40 (-):
    Accessory cut request (B61) No. 51 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition When engine is started
  12. Waveform 12
    G13627326Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Starter cut relay control (B61) No. 8 (+) - Engine ground 3 (B61) No. 40 (-):
    Starter relay control (B61) No. 9 (+) - Engine ground 3 (B61) No. 40 (-):
    Engine speed output (B61) No. 24 (+) - Engine ground 3 (B61) No. 40 (-):
    Ignition switch (B61) No. 46 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition When engine is started
  13. Waveform 13
    G12399904Courtesy of SUBARU OF AMERICA, INC.
    Measured terminal Air flow sensor signal (B61) No. 63 (+) - Engine ground 3 (B61) No. 40 (-):
    Measuring condition While engine idling
    G13627328Courtesy of SUBARU OF AMERICA, INC.
    G13627329Courtesy of SUBARU OF AMERICA, INC.
    G13627330Courtesy of SUBARU OF AMERICA, INC.
    G13627331Courtesy of SUBARU OF AMERICA, INC.
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