100%
Stock ECU being replaced
NEXUSS3-A-5 Injector 5
NEXUSS3-A-8 Injector 8
NEXUSS3-A-20 HBO 2
NEXUSS3-A-21 HBO 3
5 no data
NEXUSS3-A-22 HBO 4
7–8 no data
NEXUSS3-C-6 SPI 2
11 no data
NEXUSS3-A-6 Injector 6
14 no data
NEXUSS3-A-26 ECR output
NEXUSS3-A-9 DPO 1
NEXUSS3-A-12 DPO 2
NEXUSS3-A-7 Injector 7
NEXUSS3-A-14 DPO 3
22 no data
NEXUSS3-C-12 AVI 3
NEXUSS3-C-8 SPI 4
NEXUSS3-C-19 SPI 5
NEXUSS3-C-20 SPI 6
NEXUSS3-A-15 DPO 4
NEXUSS3-C-17 AVI 8
NEXUSS3-C-18 AVI 9
31 no data
NEXUSS3-C-28 AVI 11
OEM-A
Stock ECU being replaced
1Coolant temp gauge drive
2Air control valve solenoid
3Evap bypass solenoid
4Evap canister vent shut valve
5 no data
6Evap canister purge valve
7–8 no data
9Vehicle speed sensor
11 no data
12Immobilizer indicator light
14 no data
15Fuel pump relay (USDM)
16Fuel pump relay (JDM)
17A/C clutch relay
18Check engine light (MIL)
20Radiator fan relay
22 no data
23Secondary O2 sensor
24Starter switch signal
26Power steering load detect
27A/C switch (request)
28Air pump relay
29Fuel tank pressure sensor
30Electrical load detector
31 no data
32Brake switch
Power source 1 (main relay)
GND
NEXUSS3-A-2 Injector 2
NEXUSS3-A-3 Injector 3
NEXUSS3-A-4 Injector 4
6–8 no data
Power source 2 (main relay)
GND
NEXUSS3-A-1 Injector 1
NEXUSS3-A-19 HBO 1
13–19 no data
GND
GND
NEXUSS3-A-17 DPO 6
24–25 no data
OEM-B
Stock ECU being replaced
1Power source 1 (main relay)
2Power ground 1
3Injector 2
4Injector 3
5Injector 4
6–8 no data
9Power source 2 (main relay)
10Power ground 2
11Injector 1
12VTEC solenoid
13–19 no data
20Ground
22Ground
23Idle air control valve
24–25 no data
NEXUSS3-C-33 WBI 1 Heater -
NEXUSS3-A-27 Ignition 1
NEXUSS3-C-7 SPI 3
6 no data
0V sensor
NEXUSS3-C-1 Trigger +
NEXUSS3-C-2 Trigger -
NEXUSS3-A-16 DPO 5
NEXUSS3-A-28 Ignition 2
NEXUSS3-A-29 Ignition 3
NEXUSS3-A-30 Ignition 4
NEXUSS3-C-13 AVI 4
NEXUSS3-C-14 AVI 5
NEXUSS3-C-10 AVI 1
0V sensor
5V ref
NEXUSS3-C-3 Home +
NEXUSS3-C-4 Home -
23 no data
NEXUSS3-C-27 AVI 10
NEXUSS3-C-16 AVI 7
NEXUSS3-C-15 AVI 6
NEXUSS3-C-11 AVI 2
NEXUSS3-C-5 SPI 1
0V sensor
0V sensor
OEM-C
Stock ECU being replaced
1Primary O2 heater
4Ignition coil 1
5Alternator FR signal
6 no data
7Sensor ground 1
8Crank sensor + (CKP+)
9Crank sensor − (CKP−)
11Secondary O2 heater control
12Ignition coil 2
13Ignition coil 3
14Ignition coil 4
15Secondary O2 sensor
16Primary O2 sensor
17MAP sensor
18Sensor ground 2
19Sensor 5V supply 1 (MAP)
20Cam (TDC1) sensor +
21Cam (TDC1) sensor −
23 no data
24Air pump electric current sensor
25Intake air temp sensor
26Coolant temp sensor
27Throttle position sensor
29Cam (TDC2) sensor +
30Cam (TDC2) sensor −
31Timing ground
1–16 no data
OEM-D
Stock ECU being replaced
1–16 no data
NEXUSS3
NEXUSS3-A
NEXUSS3
1Injector 1
2Injector 2
3Injector 3
4Injector 4
5Injector 5
6Injector 6
7Injector 7
8Injector 8
9DPO 1
10Battery ground
11Battery ground
12DPO 2
14DPO 3
15DPO 4
16DPO 5
17DPO 6
18+12V switched input
19HBO 1
20HBO 2
21HBO 3
22HBO 4
25+12V switched input
26ECR output
27Ignition 1
28Ignition 2
29Ignition 3
30Ignition 4
OEM-B-11 Injector 1
OEM-B-3 Injector 2
OEM-B-4 Injector 3
OEM-B-5 Injector 4
OEM-A-1 Coolant temp gauge drive
OEM-A-12 Immobilizer indicator light
OEM-A-18 Check engine light (MIL)
OEM-A-2 Air control valve solenoid
OEM-A-16 Fuel pump relay (JDM)
GND
GND
OEM-A-17 A/C clutch relay
OEM-A-20 Radiator fan relay
OEM-A-28 Air pump relay
OEM-C-11 Secondary O2 heater control
OEM-B-23 Idle air control valve
+12V switched input
OEM-B-12 VTEC solenoid
OEM-A-3 Evap bypass solenoid
OEM-A-4 Evap canister vent shut valve
OEM-A-6 Evap canister purge valve
+12V switched input
OEM-A-15 Fuel pump relay (USDM)
OEM-C-4 Ignition coil 1
OEM-C-12 Ignition coil 2
OEM-C-13 Ignition coil 3
OEM-C-14 Ignition coil 4
NEXUSS3-C
NEXUSS3
1Trigger +
2Trigger -
3Home +
4Home -
5SPI 1
6SPI 2
7SPI 3
8SPI 4
10AVI 1
11AVI 2
12AVI 3
13AVI 4
14AVI 5
15AVI 6
16AVI 7
17AVI 8
18AVI 9
19SPI 5
20SPI 6
25+5V
26Signal ground
27AVI 10
28AVI 11
33WBI 1 Heater -
OEM-C-8 Crank sensor + (CKP+)
OEM-C-9 Crank sensor − (CKP−)
OEM-C-20 Cam (TDC1) sensor +
OEM-C-21 Cam (TDC1) sensor −
OEM-C-29 Cam (TDC2) sensor +
OEM-A-9 Vehicle speed sensor
OEM-C-5 Alternator FR signal
OEM-A-24 Starter switch signal
OEM-C-17 MAP sensor
OEM-C-27 Throttle position sensor
OEM-A-23 Secondary O2 sensor
OEM-C-15 Secondary O2 sensor
OEM-C-16 Primary O2 sensor
OEM-C-26 Coolant temp sensor
OEM-C-25 Intake air temp sensor
OEM-A-29 Fuel tank pressure sensor
OEM-A-30 Electrical load detector
OEM-A-26 Power steering load detect
OEM-A-27 A/C switch (request)
5V ref
0V sensor
OEM-C-24 Air pump electric current sensor
OEM-A-32 Brake switch
OEM-C-1 Primary O2 heater
SP-14V · 5 pins
SP-GND · 7 pins
SP-0V · 6 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.