Pin |
ECU Pin |
Function |
Pin |
ECU Pin |
Function |
101 |
Injector 1 |
Injection |
31 |
nc |
|
102 |
nc |
|
32 |
Aux 7 |
CE Light |
103 |
Injector 3 |
Injection |
33 |
nc |
|
104 |
Aux 2 |
FP Speed 1 |
34 |
Ground (AFM Front) |
(GTR Only) |
105 |
Injector 2 |
Injection |
35 |
An Volt 5 |
AFM Signal (Front) (GTR Only) |
106 |
Aux 1 |
FP Speed 2 (GTR Only) |
36 |
An Temp 2 |
Factory IAT (GTR Only) |
107 |
Ground |
|
37 |
nc |
|
108 |
Ground |
|
38 |
An Volt 3 |
TPS (Main) |
109 |
nc (+12V from ECCS Relay) |
|
39 |
nc |
|
110 |
Injector 5 |
Injection |
40 |
nc |
|
111 |
nc |
|
41 |
Trig 2 |
swapped via switch |
112 |
Injector 6 |
Injection |
42 |
Trig 1 |
swapped via switch |
113 |
Aux 1 |
VTC Cam Solenoid (S2 RB25) |
43 |
DI 2 |
Start Signal |
114 |
Injector 4 |
Injection |
44 |
DI 8 |
Neutral Switch |
115 |
Ground (O2 Heater) |
|
45 |
12V Ignition Switch Input |
Controls Pin 16 |
116 |
Ground |
|
46 |
DI 4 |
A/C In |
|
47 |
nc |
|
||
1 |
Ignition 1 |
Ignition |
48 |
+5V Out |
|
2 |
Ignition 5 |
Ignition |
49 |
+14V ECCS Relay |
ECU Power |
3 |
Ignition 3 |
Ignition |
50 |
Ground (Signal) |
|
4 |
Injector 7 (Aux) |
ISC Solenoid |
51 |
Trig 2 |
swapped via switch |
5 |
nc |
|
52 |
Trig 1 |
swapped via switch |
6 |
Injector 8 (Aux) |
Fan Relay (GTR Only) |
53 |
DI 3 |
Vehicle Speed |
7 |
Aux 4 |
Tacho |
54 |
DI 7 |
Idle Switch |
8 |
Ignition Switch Input (R34 Euro) |
Controls Pin 16 |
55 |
An Volt 9 |
Oxy Signal (Rear) (GTR Only) |
9 |
Aux 3 |
A/C Out |
56 |
TPS Out |
Required by 4wd system |
10 |
Ground |
|
57 |
+5V Out (TPS Idle Sw) |
|
11 |
Ignition 6 |
Ignition |
58 |
+12V constant |
ISC Flywheeling |
12 |
Ignition 2 |
Ignition |
59 |
+14V ECCS Relay |
ECU Power |
13 |
Ignition 4 |
Ignition |
60 |
Ground (Signal) |
|
14 |
nc |
|
On Board MAP |
An Volt 1 |
MAP |
15 |
nc |
|
Expansion 1 |
Ground (Signal) |
|
16 |
ECCS Relay Control |
Pulls to ground when Ign is on |
Expansion 2 |
+5V Out |
|
17 |
Injector 1 |
R34 GTR Trip Computer Tacho |
Expansion 3 |
DI 5 |
|
18 |
Aux 6 |
FP Relay |
Expansion 4 |
DI 6 |
|
19 |
DI 1 |
Power Steer Switch |
Expansion 5 |
An Volt 8 |
|
20 |
Ground |
|
Expansion 6 |
An Volt 2 |
|
21 |
nc |
|
Expansion 7 |
An Temp 3 |
|
22 |
nc |
|
Expansion 8 |
An Temp 4 |
|
23 |
Knock 1 |
Knock |
Expansion 9 |
Ground (Signal) |
|
24 |
Knock 2 |
Knock |
Expansion 10 |
+5V Out |
|
25 |
Aux 8 |
WG Solenoid (GTR and RB25DET) |
Expansion 11 |
Ignition 7 |
|
26 |
Ground (AFM) |
|
Expansion 12 |
Ignition 8 |
|
27 |
An Volt 4 |
AFM Signal (GTR Rear) |
Expansion 13 |
DI 9 |
|
28 |
An Temp 1 |
ECT |
Expansion 14 |
DI 10 |
|
29 |
An Volt 6 |
Oxy Signal (Front) |
Expansion 15 |
An Volt 10 |
|
30 |
Ground (Signal) |
|
Expansion 16 |
Aux 11 |
|
Note: RB20DE and RB20DET Looms have Injector 4 and 6 swapped around, this can be corrected at the ECU header or the injector sub loom plug.
Note: Aux 1 is exposed on two pins (106 & 113) and has a different function depending on the vehicle.