Nissan engine wirings and pinouts

Connector_car_nissan_sr20set_1997_2002

JDM S14 - 23710-74F05 07/95 - 07/96 ECU pinout (same as EURO S14A)
ECU power → relay R 109 101 W/B Injector #1
Injector #2 Y/B 110 102 O/B Wastegate valve control
O2 heater gnd B 111 103 G/B Injector #3
Injector #4 L/B 112 104 -
AAC idle Light Blue 113 105 L/R EGR → F4 29
VTC Y 114 106 B/Y Fuel pump → F4 30
- 115 107 B GND
GND B 116 108 B GND
NATS → F4 19 G/Y 8 1 R/W PTU coil #1
Cooling fan → F4 28 O/L 9 2 L/B Tachometer
- 10 3 R/Y PTU coil #2
AC relay → F4 25 G/Y 11 4 R/B ECU relay
- 12 5 R/G PTU coil #3
GND B 13 6 B GND
Consult CLK G/W 14 7 G/B Consult RX
Consult Check G/R 23 15 G Consult TX
Malfunction Indication lamp O 24 16 W MAF signal
PTU coil #4 R/L 25 17 B MAF GND
NATS → F4 15 Y/G 26 18 L/O Coolant sensor input
Knock sensor W 27 19 W O2 signal
- 28 20 W TPS signal
- 29 21 B TPS GND (temp sensor gnd)
CAS position (=ecu pin 22) B 30 22 B CAS position (=ecu pin30)
Cas reference (=ecu pin31) W 40 31 W CAS reference (=ecu pin40)
AR CON → F4 17 R 41 32 Y/G Speed
- 42 33 -
Power steering switch Violet/W 43 34 O/L Start signal → F4 22
- 44 35 G/O Neutral switch → F4 4
- 45 36 B/R Ignition to injectors → F4 48
ECU relay R 46 37 Light Green/R TPS power output
ECU power → relay B/W 47 38 B/W Power relay
GND B 48 39 B GND

F4 SR20

23710-74F05 F4 pinout
Wiper Violet 9 1 -
Wiper L/W 10 2 B NATS ground
Tachometer → ecu2 L/B 11 3 B GND
Water temp to dash Y 12 4 G/O Neutral switch → ecu35
Speed → ecu32 Y/G 13 5 G/Y ABS
- 14 6 L/R ABS
NATS → ecu26 Y/G 15 7 G/W Consult CLK
Consult RX G/B 16 8 G/B LH turn signal
AC relay → ecu11 G/Y 25 17 R AR CON → ecu41
Consult TX G 26 18 -
Consult Check G/Brown 27 19 G/Y NATS → ecu8
Cooling fan → ecu9 O/L 28 20 O Malfunction Indication lamp → ecu24
EGR → ecu105 L/R 29 21 Brown O2
Fuel pump → ecu106 B/Y 30 22 O/L Start signal → ecu34
- 31 23 B/Y EVAP
- 32 24 R ECU backup power
- 41 33 Brown Wiper
- 42 34 Light Green/R Wiper
- 43 35 Light Green/B Wiper
- 44 36 Light Green Wiper
AC L/R 45 37 Pink Wiper
- 46 38 - Wiper
- 47 39 -
Ignition to injectors → ecu36 B/R 48 40 -

S14 SR20DET LHD F4
1 – PU – Wipers INT VR
2 – L/Y – Wipers INT SW
3 –
4 –
5 – Y/G – Speed signal to dash (VSP)
6 –
7 – R/G – ECU to Power transistor IGN#3
8 – G/B – CONSULT SCI RX IN
9 – G/Y – Turn Signal LH side
10 – L/G – FAN CONTROL (RF RH)
11 – R/L – ECU to Power transistor IGN#4
12 – G/OR – Neutral position switch (NEUT) (MT ONLY!, AT wires R/G to F7 plug)
13 –
14 –
15 – G/W – CONSULT CLK
16 – R/Y – ECU to Power transistor IGN#2
17 – G/Y – AC Tripple pressure switch (AC RLY)
18 – G – CONSULT TX OUT
19 – G/R – CONSULT CHECK
20 – OR/L – FAN CONTROL (RF RL)
21 – PU/W – Power steering oil pressure switch (PWST)
22 – B/P – Fuel pump relay (from ecu to relay)
23 – B – Boost pressure sensor ground to ecu
24 – LG/R – ECU to Boost pressure sensor (AVCC)
25 – R – ECU AIR CON
26 – R/W – ECU to Power transistor IGN#1
27 – OR/B – Wastegate control (from ecu to wg solenoid) (WGC)
28 – OR – Malfunction indicator (check engine) (LED-R)
29 – BR – O2 sensor/VTC +12v from ignition
30 – OR/L – Start Signal
31 – B/Y – IACV-AAC VALVE (idle) +12V
32 – R – BATTERY to ECCS RELAY +12V
33 – G – Power transistor to coil#4
34 – BR – Power transistor to coil#3
35 – W – Power transistor to coil#2
36 – R – Power transistor to coil#1
37 – L/R – IACV-FICD solenoid valve
38 – GRAY – Boost sensor signal shielding ground
39 – W – Boost pressure sensor to ECU (TPRESS)
40 – B/R – Ignition switch +12V (powers injectors relay)
41 – BR – Wipers OFF AND INT SW
42 – LG/R – Wipers LO
43 – LG/B – Wipers HI
44 – LG – Wipers +12V
45 – P – Wipers washer switch (WASH SW)
46 –
47 – L/R – Rear window defogger switch (LOAD) (AT MODELS ONLY)
48 – B/R – IGN SW to ECU +12V

S14 SR20DET RHD F4
1 – PU – Wipers INT VR
2 – L/Y – Wipers INT SW
3 –
4 –
5 – Y/G – Speed signal to dash (VSP)
6 –
7 –
8 – G/B – CONSULT SCI RX IN
9 –
10 – B – Consult GND
11 –
12 – G/OR – Neutral position switch (NEUT) (MT ONLY!, AT wires R/G to F7 plug)
13 –
14 –
15 – G/W – CONSULT CLK
16 – G/B – Side turn signal lamp LH
17 – G/Y – AC Tripple pressure switch (AC RLY)
18 – G – CONSULT TX OUT
19 – G/R – CONSULT CHECK
20 – OR/L – FAN CONTROL (RF RL)
21 – L/R – EGR (from ecu)
22 – B/Y – Fuel pump relay (from ecu to relay)
23 – B – Boost pressure sensor ground to ecu
24 – LG/R – ECU to Boost pressure sensor (AVCC)
25 – R – ECU AIR CON
26 – L/G – FAN CONTROL (RF RH)
27 –
28 – OR – Malfunction indicator (check engine) (LED-R)
29 – BR – O2 sensor /Wastegate solenoid/VTC +12v from ignition
30 – OR/L – Start Signal
31 – B/Y – IACV-AAC VALVE (idle) +12V
32 – R – BATTERY to ECCS RELAY +12V
33 –
34 –
35 – B/W – CAS +12V to IMMU
36 – B/W – CAS +12V from IMMU
37 – L/R – IACV-FICD solenoid valve
38 – GRAY – Boost sensor signal shielding ground
39 – W – Boost pressure sensor to ECU (TPRESS)
40 – R/L – Ignition switch +12V (powers injectors relay)
41 – BR – Wipers OFF AND INT SW
42 – LG/R – Wipers LO
43 – LG/B – Wipers HI
44 – LG – Wipers +12V
45 – P – Wipers washer switch (WASH SW)
46 –
47 –
48 – BR – IGN SW to ECU +12V

2 thoughts on “Nissan engine wirings and pinouts

  1. Hi
    I Have a nissan sr20de and looking for the pinout the ecu is a 2371053J12 can you help thanks

    • What car is it from? P10 primera? there should be a factory service manual with all required pinouts available to download.

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