THIS IS FOR THE S13 SRs The left side is for 91-96 Redtop/Blacktop The right side is for 97-98 Type X Blacktops

THIS ONLY APPLIES TO S14 NOTCHTOPS
S14 SR ECU PINOUTS

Pin Wire Description
101 W/B Fuel Injector # 1 Drive Input
102 L/R EGR & Canister Control Solenoid Valve
103 G/B Fuel Injector # 3 Drive Input
104
105 R/Y Unknown
106
107 B Engine Ground
108 B Engine Ground
109 R ECU Power
110 Y/B Fuel Injector # 2 Drive Input
111
112 L/B Fuel Injector # 4 Drive Input
113 Y VTC Solenoid Valve
114
115 B Heated Oxygen Sensor Heater
116 B Engine Ground
1 R/W Power Transistor Coil Pack # 1
2 R/Y Power Transistor Coil Pack # 2
3
4 SB IACV-AAC Valve
5
6
7 L/B Tachometer Signal Output
8
9 G/Y A/C Relay (Triple Pressure Switch)
10 B Engine Ground
11 R/G Power Transistor Coil Pack # 3
12 R/L Power Transistor Coil Pack # 4
13
14
15
16 R/B ECU Relay (Self Shut-Off)
17
18 B/Y Fuel Pump Relay
19 O/L Cooling Fan Relay (Low)
20 B Engine Ground
21 G/B SCI RX (In)
22 G SCI TX (Out)
23 W Knock Sensor
24
25 O/B Wastegate Valve Control Solenoid Valve
26 B Mass Air Flow Sensor Ground
27 W Mass Air Flow Sensor
28 L/O Engine Coolant Temperature Sensor Input
29 W Heated Oxygen Sensor
30 B Engine Ground
31 G/W SCI CLK
32 O Malfunction Indicator Lamp
33 O/B Cooling Fan Relay (High)
34 PU/W Power Steering Oil Pressure Switch
35 W Boost Pressure Sensor
36 B Ground
37
38 W Throttle Position Sensor
39
40
41 W Camshaft Position Sensor (Reference Signal)
42 B Camshaft Position Sensor (Position Signal)
43 O/L Start Signal
44 G/O Neutral Position Switch
45 B/R Ignition Switch
46 R Thermistor Control Amplifier
47 G/R Check Connector
48 LG/R Throttle Position Sensor Power Output (AVCC boost)
49 B/W ECU Power
50 B ECU Ground
51 W Camshaft Position Sensor (Reference Signal)
52 B Camshaft Position Sensor (Position Signal)
53 Y/G Vehicle Speed Sensor
54 L/R Load Signal
55
56
57 B/W Unknown
58 R Power Supply (Back-Up)
59 B/W ECU Power
60 B ECU Ground

THIS ONLY APPLIES TO S15 NOTCHTOPS
S15 SR ECU PINOUTS

Pin Wire Description
101 W/G Fuel Injector # 1
102
103 G/B Fuel Injector # 3
104
105 R/L Intake Valve Timing Control Solenoid Valve
106 B/P Fuel Pump Relay
107 B ECU Ground
108 B ECU Ground
109 W ECU Backup Power
110 L/R Fuel Injector # 2
111 B/R Front Heated Oxygen Sensor Heater
112 L/B Fuel Injector # 4
113 SB IACV, AAC (Auxiliary Air Control)
114
115 O/B Wastegate Valve Control Solenoid Valve
116 B ECU Ground
1 R/W Ignition Signal # 1
2 L/O Tachometer
3 Br/R Ignition Signal # 2
4 R/B ECU Relay
5 R/G Ignition Signal # 3
6 B ECU Ground
7 Br/Y Data Link Connector
8 ? NATS
9 P/B Cooling Fan Relay (Low)
10 L/G Cooling Fan Relay (High)
11 G Air Conditioner Relay
12 Pu/W Automatic Transmission Signal # 3
13 B ECU Ground
14
15 SB Data Link Connector
16 L Mass Air Flow Sensor
17 P Mass Air Flow Sensor Ground
18 P/B Engine Coolant Temperature Sensor
19 W Front Heated Oxygen Sensor
20 R Throttle Position Sensor
21 Gy TPS Ground
22
23 G/R Data Link Connector
24 O Malfunction Indicator Lamp
25 R/L Ignition Signal # 4
26
27 W Knock Sensor
28 R/Y Throttle Posion Sensor Signal Output (A/T)
29
30 B/Y Camshaft Position Sensor (Position Signal)
31 LG Camshaft Position Sensor (Reference Signal)
32 W/Pu Vehicle Speed Sensor
33 G/R Electrical Load Signal (Headlamp and Rear Defogger – Pu A/T)
34 O/L Start Signal
35 G/O Park/ Neutral Position Switch (R/G A/T)
36 B/R Ignition Switch
37 Lg/R Sensor’s Power Supply (TPS)
38 B/W ECU Power
39 B ECU Ground
40
41 L/B Air Conditioner Switch (Dual Pressure Switch)
42
43 Pu/W Power Steering Oil Pressure Switch
44 L/W Automatic Transmission Signal # 2
45 L/O Automatic Transmission Signal # 1
46 W ECU Backup Power
47 B/W ECU Power
48 B ECU Ground

would like to say that the s14 has two pin outs for the two WC and NA ecus. the NA ecu has the same pinout as the S15

for the s15 pin out you need to correct it, 22 is also the position signal and 40 is also the reference

Position for what? Throttle?

Reference for what?

Ok so I like the fact that it tells me where every thing is hooked up to my ECU but there is one problem.
I want to hook up the OBD port and I found this http://www.plmsdevelopments.com/consult_wiring.htm
I'm ready to splice the hook up the wires but as you can see the picture in the line shows wires as ( RX, TX, CLK ) Now I cant find the ECU pinout that tells out which pin the RX or the TX or the CLK are. So if anyone knows which one of those go where please share.

Thanks Tom

I'd try contacting OM3GA on here through PM. He works for wiring specialties, and he really knows his s***.

lilpiton wrote:Ok so I like the fact that it tells me where every thing is hooked up to my ECU but there is one problem.
I want to hook up the OBD port and I found this http://www.plmsdevelopments.com/consult_wiring.htm
I'm ready to splice the hook up the wires but as you can see the picture in the line shows wires as ( RX, TX, CLK ) Now I cant find the ECU pinout that tells out which pin the RX or the TX or the CLK are. So if anyone knows which one of those go where please share.

Thanks Tom

Its an easy splice and solder thing. Wires on the SR plug:

RX - Green/Black, Pin 7

CLK - Green/White, Pin 14

TX - Green, Pin 15

CHK - Green red, Pin 23

Fault code lamp output (check engine light) - Red, Pin 24

Assuming that your 240 is a 91-94, it should already have the ob consultd port, driver side kick-panel. It's all a matter of splicing the said wires (ECU connector side) to the brown dash connector, passenger side. Color match wires.

89-90 models require splicing a obd consult port, but you'll have to run it from the passenger side to driver side, or you can leave it next to the ecu. You'll also notice that there is an empty spot in (SR) Pin 24. You can pin it using an old KA connector's pin and wire it to the red wire on the (brown) dash connector. That way you can check for fault codes via instrument-dash cluster check engine light.

I did mine this way. Works just fine. Beats unbolting the ECU and checking it via red L.E.D. light. I can't recall at the moment the two pins you have to ground or short on the OBD consult port to make it work.

hope this helps. if it doesn't then I'm' sorry.

this is just what I was looking for, thanks alot!

So anothere issue of my happenes when i go to hook up the OBD port.
I locate the wires and i try to find the pin 7, 14, 15, 23 but there is no wires in those pin location!?
So yet another question. Will any older nissan ecu pinout wire hook up the my sr one?

lilpiton wrote:So anothere issue of my happenes when i go to hook up the OBD port.
I locate the wires and i try to find the pin 7, 14, 15, 23 but there is no wires in those pin location!?

Pin locations? SR ECU blue connector? What type of SR, ECU do you have?
Plz clarify.

lilpiton wrote:So yet another question. Will any older nissan ecu pinout wire hook up the my sr one?

Are you talking about the pinned wire? If so it should be the same.

I have an s15 sr and yea the pinned wires.

The S15 consult does not require a CLK signal. You will need the following:

RX
TX
CHK
IGN
__ (as in negative)





Seems like your ECU plug was depinned at one time, but that is kind of difficult. The pins are complex to pull. Can you post pics of the ECU plug and what other pins are you missing....?

i need some help does anyone know what wires on the s14 instrument cluster power the dash lights?

Try asking that in 240gen and I'm sure you'll receive a faster answer.