WRXLink (3-4)

Subaru V3-4 WRX/STi – Legacy GTB (Single Turbo Conv.)

Pin

ECU Pin

Function

Pin

ECU Pin

Function

1

Injector 2

Injection

51

+12V Ignition Switch

Controls Main Relay

2

Injector 3

Injection

52

Trig 1 / Trig 2

Triggers via Dip Switch

3

Injector 4

Injection

53

Ground (Triggers)

4

Ignition 1

Ignition 1&2

54

Trig 2 / Trig 1

5

Ignition 2

Ignition 3&4

55

Ground (AFM)

6

Injector 5 (Aux)

CE Light

56

An Volt 2

AFM Signal

7

Injector 6 (Aux)

Fuel Pump Relay

57

An Volt 4

Oxygen Sensor Signal

8

nc

58

Knock 1

Knock

9

nc

59

An Temp 1

ECT

10

nc

60

+14V Main Relay

ECU Power

11

Aux 3

Wastegate Solenoid

61

+14V Main Relay

ECU Power

12

Aux 2

ISC Open (ISC Solenoid)

62

Main Relay Control

13

Aux 1

ISC Close (ISC Slave)

63

nc

14

Injector 1

Injection

64

nc

15

Ground

65

nc

16

Ground

66

Ground

17

Ignition 2

Ignition 3&4

67

An Volt 1

Factory MAP Sensor

18

Ignition 1

Ignition 1&2

68

An Volt 3

TPS (Main)

19

Aux 6

A/C Out

69

nc

20

nc

70

+5V Out

21

nc

71

Ground (Signal)

22

nc

72

Ground

23

Injector 6 (Aux)

Fuel Pump Relay

24

nc

25

nc (+12V constant)

26

Ground

31

Ignition 3 (Aux)

Engine Fan

Expansion 1

Ground (Signal)

32

nc

Expansion 2

+5V Out

33

nc

Expansion 3

DI 5

34

nc

Expansion 4

DI 6

35

nc

Expansion 5

An Volt 5

36

DI 1

Vehicle Speed

Expansion 6

An Volt 6

37

DI 3

Start Signal

Expansion 7

An Temp 4

38

An Temp 2

Factory IAT Sensor

Expansion 8

An Temp 3

39

Ignition 4 (Aux)

Engine Fan (High Speed)

Expansion 9

Ground (Signal)

40

Aux 8

Purge Solenoid

Expansion 10

+5V Out

41

Aux 4

Tacho

Expansion 11

DI 9

42

nc

Expansion 12

DI 10

43

nc

Expansion 13

An Volt 8

44

nc

Expansion 14

An Volt 9

45

DI 2

A/C In

Expansion 15

Ignition 7 (Aux)

46

DI 4

Neutral Switch

Expansion 16

Ignition 8 (Aux)