V1-2 Pinout

Subaru V1-2 WRX/STi, RS Legacy

Pin

ECU Pin

Function

Pin

ECU Pin

Function

1

Injector 1

Injection

55

An Volt 3

TPS (Main)

2

Injector 2

Injection

56

Ground (TPS)

 

3

Injector 3

Injection

57

DI 3

Ignition Switch

4

Ignition 1

Ignition

58

DI 4

Vehicle Speed

5

Ignition 3

Ignition

59

nc

 

6

Ignition 2

Ignition

60

nc

 

7

Ignition 4

Ignition

61

nc

 

8

Aux 7

Purge

62

nc

 

9

nc

 

 

10

Injector 5 (Aux)

Fan Relay 2

71

Ground (Signal)

 

11

Aux 4

Wastegate Solenoid

72

Ground (AFM)

 

12

Aux 2

ISC Open (ISC Solenoid)

73

An Volt 2

AFM Signal

13

Aux 1

ISC Close (ISC Slave)

74

AFM +12V

 

14

Injector 4

Injection

75

An Temp 1

ECT

15

Ground

 

76

An Volt 4

Oxygen Sensor Signal

16

Ground

 

77

nc

 

17

Aux 5

Fuel Pump Relay

78

An Volt 1

Factory MAP Sensor

18

Aux 6

A/C Out

79

+5V Out (MAP)

 

19

nc

 

80

+14V

ECU Power

20

nc

 

81

nc

 

21

Aux 8

CE Light

82

Ground (Signal)

 

22

nc

 

83

Ground (MAP)

 

23

Injector 6 (Aux)

Fan Relay 1

84

nc

 

24

 

 

85

nc

 

25

 

 

86

nc

 

26

Ground

 

87

Ground (O2 Shield)

 

 

88

nc


31

nc

 

89

nc (+12V constant)

 

32

nc

 

90

nc

 

33

nc

 

91

+14V

ECU Power

34

Knock 1

Knock

92

nc

 

35

Ground (Knock)

 

 

36

Ground (Trig 2 Shield)

 

Expansion 1

Ground (Signal)

 

37

Ground (Trig 2)

 

Expansion 2

+5V Out

 

38

Trig 2

Trig 2

Expansion 3

DI 5

 

39

Aux 3

Tacho

Expansion 4

DI 6

 

40

nc

 

Expansion 5

An Volt 5

 

41

nc

 

Expansion 6

An Volt 6

 

42

nc

 

Expansion 7

An Temp 2

 

43

nc

 

Expansion 8

An Temp 3

 

44

nc

 

Expansion 9

Ground (Signal)

 

45

DI 1

Start Signal

Expansion 10

+5V Out

 

46

DI 2

A/C In

Expansion 11

DI 9

 

 

Expansion 12

DI 10

 

51

Ground (Trig 1 Shield)

 

Expansion 13

An Volt 8

 

52

Ground (Trig 1)

 

Expansion 14

An Volt 9

 

53

Trig 1

Trig 1

Expansion 15

Ignition 7 (Aux)

 

54

+5V Out

 

Expansion 16

Ignition 8 (Aux)

 

 

Note: Injector Drives 7 and 8 aren't exposed and don't have the hardware required to drive Injectors.