Pin |
ECU Pin |
Function |
Pin |
ECU Pin |
Function |
101 |
Injector 1 |
Injection |
37 |
nc |
4wd TPS Out (Not Connected) |
102 |
nc |
|
38 |
nc |
|
103 |
Injector 3 |
Injection |
39 |
nc |
|
104 |
Aux 1 |
Intake Solenoid / WG Solenoid (R34 RB25DET) |
40 |
nc |
|
105 |
Injector 2 |
Injection |
41 |
nc |
|
106 |
nc |
|
42 |
nc |
|
107 |
Aux 5 |
Air Jet Swirl Solenoid (RB20DE Only) |
43 |
Ground (Signal) |
|
108 |
An Temp 4 |
|
44 |
Trig 2 |
Trig 2 |
109 |
+12V constant |
AC Clutch Relay Flywheeling |
45 |
Trig 2 |
Trig 2 |
110 |
Injector 5 |
Injection |
46 |
Trig 1 |
Trig 1 |
111 |
Aux 5 |
FP Speed (RB25DET Only) |
47 |
An Volt 3 |
Factory MAP Signal (RB25DET Only) |
112 |
Injector 6 |
Injection |
48 |
+5V Out |
|
113 |
nc |
|
49 |
nc |
|
114 |
Injector 4 |
Injection |
50 |
An Volt 2 |
Oxy Signal |
115 |
nc |
|
51 |
nc |
|
116 |
Ground |
|
52 |
nc |
|
117 |
Aux 6 |
VTC Cam Solenoid |
53 |
nc |
|
118 |
Aux 7 |
Oxy Heater |
54 |
An Volt 1 |
MAF Signal |
119 |
nc |
|
55 |
Ground (MAF) |
|
120 |
nc |
|
56 |
An Temp 1 |
ECT |
121 |
nc |
|
57 |
nc |
|
122 |
nc |
|
58 |
nc |
|
123 |
nc |
|
59 |
nc |
|
124 |
Ground |
|
60 |
nc |
|
|
61 |
nc |
|
||
1 |
Ignition 1 |
Ignition |
62 |
Knock 2 |
Knock |
2 |
Ignition 5 |
Ignition |
63 |
Knock 1 |
Knock |
3 |
Ignition 3 |
Ignition |
64 |
nc |
|
4 |
ECCS Relay Control |
Pulls to ground when Ign is on |
65 |
nc |
|
5 |
Aux 3 |
Tacho (20% Duty Cycle) |
66 |
nc |
|
6 |
|
|
67 |
+14V (Main Relay) |
ECU Power |
7 |
Ignition 6 |
Ignition |
68 |
nc |
|
8 |
Ignition 2 |
Ignition |
69 |
nc |
|
9 |
Ignition 4 |
Ignition |
70 |
nc |
|
10 |
nc |
|
71 |
nc |
|
11 |
Aux 4 |
ISC Solenoid |
72 |
+14V (Main Relay) |
ECU Power |
12 |
nc |
|
73 |
nc |
|
13 |
Aux 2 |
FP Relay |
74 |
nc |
|
14 |
Injector 7 (Aux) |
A/C Clutch |
75 |
nc |
|
15 |
nc |
|
76 |
nc |
|
16 |
nc |
|
77 |
nc |
|
17 |
Aux 8 |
CE Light |
78 |
Injector 8 (Aux) |
A/C Fan (RB25DE and RB25DET) |
18 |
nc |
|
79 |
nc |
|
19 |
nc |
|
80 |
nc (+12V constant) |
|
20 |
DI 2 |
Start Signal |
|
||
21 |
DI 3 |
A/C In |
Expansion 1 |
Ground (Signal) |
|
22 |
nc |
|
Expansion 2 |
+5V Out |
|
23 |
An Volt 4 |
TPS(Main) |
Expansion 3 |
DI 5 |
|
24 |
Ignition Switch (+12V) |
Used for Fan Flywheeling |
Expansion 4 |
DI 6 |
|
25 |
Ground |
|
Expansion 5 |
An Volt 5 |
|
26 |
DI 1 |
Power Steer Switch |
Expansion 6 |
An Volt 6 |
|
27 |
nc |
|
Expansion 7 |
An Temp 2 |
|
28 |
nc |
|
Expansion 8 |
An Temp 3 |
|
29 |
DI 4 |
Vehicle Speed |
Expansion 9 |
Ground (Signal) |
|
30 |
nc |
|
Expansion 10 |
+5V Out |
|
31 |
12V Ignition Sw Input |
Controls Pin 4 |
Expansion 11 |
DI 7 |
|
32 |
nc |
|
Expansion 12 |
DI 8 |
|
33 |
nc |
|
Expansion 13 |
An Volt 10 |
|
34 |
nc |
|
Expansion 14 |
An Volt 9 |
|
35 |
nc |
|
Expansion 15 |
Ignition 7 |
|
36 |
nc |
|
Expansion 16 |
Ignition 8 |
|
Note: Aux 5 is exposed on two pins (107 & 111) and has a different function depending on the vehicle.
Note: Tacho Duty Cycle depends on vehicle, 20% for RB20DE and RB25DE, 70% for RB25DET