SR20DET ECCS info


SR20DET ECU Plug.


Japanese SR20DET ECU pinouts
 ECU 
PINS
Description of use
Coil pack 1 output (via power transistor Unit)
2 Coil pack 2 output (via power transistor Unit)
3 Tachometer signal output
4 ECCS relay
5 Ignition pulse monitor (for trip comp ?)
6 Ignition Signal Ground
7 RX data (signal from Nissan Consult hand terminal)
8 Coil pack 3 output (via power transistor Unit)
9 Coil pack 4 output (via power transistor Unit)
10 -
11 -
12 A/T  signal  DT3  (autotrans gear select ?)
13 Ignition Signal Ground
14 CLK clock (timing signal) ?
15 TX data (signal to Nissan Consult hand terminal)
16 AFM Signal input (air flow meter)
17 AFM ground
18 Water temp sensor input
19 Oxygen Sensor input (O2)
20 TPS input (throttle position sensor)
21 Sensor ground
22 CAS 180deg signal (crank angle sensor)
23 CHK check (check start) ?
24 Monitor check lamp (Red) (fault code lamp output)
25 Exhaust over temp warning lamp output
26 Exhaust temp sensor input (behind the Cat)
27 Detonation sensor input (knock sensor)
28 TPS for A/T (kick down switch)
29 Sensor ground
30 CAS 180deg signal (crank angle sensor)
31 CAS 1deg signal (crank angle sensor)
32 Speed sensor input
33 -
34 START signal (from ignition switch)
35 A/T neutral switch input 
36 IGN (ignition ON, from ignition switch)
37 TPS power output (power to throttle position sensor)
38 ECCS power
39 ECCS ground
40 CAS 1deg signal (crank angle sensor)
41 A/C on input (Air Con ON from A/C  panel or climate control)
42 A/T  signal  DT1  (auto trans gear select ?)
43 Power steering switch (speed proportional control output)
44 A/T  signal  DT1  (auto trans gear select ?)
45 Ambient air temp sensor input
46 ECCS backup power
47 ECCS power
48 ECCS ground
101 Injector No 1 drive output
102 EAI  control solenoid output (EGR valve control ?)
103 Injector No 3 drive output
104 Fuel pump relay output
105 Fuel pressure control module
106 A/C on output (Air Conditioner on relay signal)
107 Injector ground
108 Injector ground
109 Reverse electrical flow return circuit (alternator fail input ?)
110 Injector No 2 drive output
111 Turbo boost pressure control solenoid (over boost cut ?)
112 Injector No 4 drive output
113 AAC valve control (Auxiliary Air Control, idle speed control)
114 -
115 -
116 Injector ground

 
ECU plug Pin Number Wire colour ECU plug Pin number Wire colour
1 Red White 33 -
2 Red Yellow 34 Orange
3 Yellow Red 35 Green Orange
4 Red Black 36 Black Red
5 37 Light Green Red
6 Black 38 Black White
7 Green Black 39 Black
8 Red White 40 Red Black
9 Red White 41 Blue Green
10 - 42
11 - 43 Purple White
12 44
13 Black 45 Blue White
14 Green White 46 Red
15 Green 47 Black White
16 White 48 Black
17 Black 101 White Black
18 Blue Brown 102 Orange Black
19 White 103 Green Black
20 White 104 Black Purple
21 Black 105 Red White
22 White 106 Green Black
23 Green Red 107 Black
24 108 Black
25 Orange 109 Red
26 Blue Yellow 110 Yellow Black
27 White 111 Orange Black
28 112 Blue Black
29 Black 113 Light Blue
30 White 114 -
31 Black 115 -
32 Yellow Green 116 Black