S2000 AP2 2006–09 cable conversion → Haltech Nexus S3
AP2 2006–09 converted to cable throttle — Haltech — Nexus S3
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-05
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
NEXUSS3-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W23 | — | 0.5 | OEM-B-5 | — | — | — |
| 10 | Battery ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | DPO 2 | — | — | — | — | — | — | — | — |
| 13 | Ignition switch input | — | W27 | — | 0.5 | OEM-E-9 | — | — | — |
| 14 | DPO 3 | — | W30 | — | 0.5 | OEM-E-12 | — | — | — |
| 15 | DPO 4 | — | W31 | — | 0.5 | OEM-E-18 | — | — | — |
| 16 | DPO 5 | — | W32 | — | 0.5 | OEM-E-8 | — | — | — |
| 17 | DPO 6 | — | W35 | — | 0.5 | OEM-A-10 | — | — | — |
| 18 | +12V switched input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 19 | HBO 1 | — | W33 | — | 0.5 | OEM-B-6 | — | — | — |
| 2 | Injector 2 | — | W24 | — | 0.5 | OEM-B-4 | — | — | — |
| 20 | HBO 2 | — | — | — | — | — | — | — | — |
| 21 | HBO 3 | — | — | — | — | — | — | — | — |
| 22 | HBO 4 | — | — | — | — | — | — | — | — |
| 23 | CAN 1 High | — | W55 | — | 0.5 | OEM-E-11 | — | — | — |
| 24 | CAN 1 Low | — | W56 | — | 0.5 | OEM-E-24 | — | — | — |
| 25 | +12V switched input | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | ECR output | — | W28 | — | 0.5 | OEM-E-17 | — | — | — |
| 27 | Ignition 1 | — | W19 | — | 0.5 | OEM-A-16 | — | — | — |
| 28 | Ignition 2 | — | W20 | — | 0.5 | OEM-A-15 | — | — | — |
| 29 | Ignition 3 | — | W21 | — | 0.5 | OEM-A-14 | — | — | — |
| 3 | Injector 3 | — | W25 | — | 0.5 | OEM-B-3 | — | — | — |
| 30 | Ignition 4 | — | W22 | — | 0.5 | OEM-A-13 | — | — | — |
| 31 | Ignition 5 | — | — | — | — | — | — | — | — |
| 32 | Ignition 6 | — | — | — | — | — | — | — | — |
| 33 | Ignition 7 | — | — | — | — | — | — | — | — |
| 34 | Ignition 8 | — | — | — | — | — | — | — | — |
| 4 | Injector 4 | — | W26 | — | 0.5 | OEM-B-2 | — | — | — |
| 5 | Injector 5 | — | W36 | — | 0.5 | OEM-B-15 | — | — | — |
| 6 | Injector 6 | — | W37 | — | 0.5 | OEM-B-18 | — | — | — |
| 7 | Injector 7 | — | W38 | — | 0.5 | OEM-B-21 | — | — | — |
| 8 | Injector 8 | — | W39 | — | 0.5 | OEM-E-19 | — | — | — |
| 9 | DPO 1 | — | W29 | — | 0.5 | OEM-E-7 | — | — | — |
NEXUSS3-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Trigger + | — | W14 | — | 0.5 | OEM-A-7 | — | — | — |
| 10 | AVI 1 | — | W40 | — | 0.5 | OEM-A-30 | — | — | — |
| 11 | AVI 2 | — | — | — | — | — | — | — | — |
| 12 | AVI 3 | — | W60 | — | 0.5 | TPS-J-SIG | — | — | — |
| 13 | AVI 4 | — | W41 | — | 0.5 | OEM-E-20 | — | — | — |
| 14 | AVI 5 | — | W42 | — | 0.5 | OEM-B-8 | — | — | — |
| 15 | AVI 6 | — | W43 | — | 0.5 | OEM-E-1 | — | — | — |
| 16 | AVI 7 | — | W44 | — | 0.5 | OEM-B-17 | — | — | — |
| 17 | AVI 8 | — | W45 | — | 0.5 | OEM-B-13 | — | — | — |
| 18 | AVI 9 | — | W46 | — | 0.5 | OEM-E-14 | — | — | — |
| 19 | SPI 5 | — | W53 | — | 0.5 | OEM-D-7 | — | — | — |
| 2 | Trigger - | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | SPI 6 | — | W54 | — | 0.5 | OEM-D-8 | — | — | — |
| 21 | CAN 2 High | — | — | — | — | — | — | — | — |
| 22 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 23 | Knock 1 | — | W18 | — | 0.5 | OEM-A-1 | — | — | — |
| 24 | Knock 2 | — | — | — | — | — | — | — | — |
| 25 | +5V | — | W58 | — | 0.5 | SP-5V-1 | — | — | — |
| 26 | Signal ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | AVI 10 | — | W47 | — | 0.5 | OEM-E-15 | — | — | — |
| 28 | AVI 11 | — | W48 | — | 0.5 | OEM-E-16 | — | — | — |
| 29 | WBI 1 Heater + | — | — | — | — | — | — | — | — |
| 3 | Home + | — | W16 | — | 0.5 | OEM-A-6 | — | — | — |
| 30 | WBI 1 Input | — | — | — | — | — | — | — | — |
| 31 | WBI 1 Pump | — | — | — | — | — | — | — | — |
| 32 | WBI 1 Nernst | — | — | — | — | — | — | — | — |
| 33 | WBI 1 Heater - | — | W34 | — | 0.5 | OEM-E-21 | — | — | — |
| 34 | WBI 1 Cal | — | — | — | — | — | — | — | — |
| 4 | Home - | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | SPI 1 | — | W49 | — | 0.5 | OEM-A-18 | — | — | — |
| 6 | SPI 2 | — | W50 | — | 0.5 | OEM-B-11 | — | — | — |
| 7 | SPI 3 | — | W51 | — | 0.5 | OEM-D-1 | — | — | — |
| 8 | SPI 4 | — | W52 | — | 0.5 | OEM-D-4 | — | — | — |
| 9 | +8V | — | — | — | — | — | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Knock sensor | — | W18 | — | 0.5 | NEXUSS3-C-23 | — | — | — |
| 2 | Ignition power 2 | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Cam position sensor (T2) | — | W16 | — | 0.5 | NEXUSS3-C-3 | — | — | — |
| 7 | Crank position sensor (T1) | — | W14 | — | 0.5 | NEXUSS3-C-1 | — | — | — |
| 8 | Logic ground 2 | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Logic ground 1 | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | A/F sensor heater | — | W35 | — | 0.5 | NEXUSS3-A-17 | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 | — | W22 | — | 0.5 | NEXUSS3-A-30 | — | — | — |
| 14 | Ignition coil 3 | — | W21 | — | 0.5 | NEXUSS3-A-29 | — | — | — |
| 15 | Ignition coil 2 | — | W20 | — | 0.5 | NEXUSS3-A-28 | — | — | — |
| 16 | Ignition coil 1 | — | W19 | — | 0.5 | NEXUSS3-A-27 | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor | — | W49 | — | 0.5 | NEXUSS3-C-5 | — | — | — |
| 19 | Unused cavity | — | — | — | — | — | — | — | — |
| 20 | Sensor voltage 2 | — | — | — | — | — | — | — | — |
| 21 | Sensor voltage 1 | — | W57 | — | 0.5 | SP-5V-1 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Sensor ground 2 | — | — | — | — | — | — | — | — |
| 24 | Sensor ground 1 | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 25 | Accelerator pedal position B | — | — | — | — | — | — | — | — |
| 26 | Accelerator pedal position A | — | — | — | — | — | — | — | — |
| 27 | Unused cavity | — | — | — | — | — | — | — | — |
| 28 | A/F sensor signal − | — | — | — | — | — | — | — | — |
| 29 | Unused cavity | — | — | — | — | — | — | — | — |
| 30 | MAP sensor | — | W40 | — | 0.5 | NEXUSS3-C-10 | — | — | — |
| 31 | A/F sensor signal + | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Unused cavity | — | — | — | — | — | — | — | — |
| 2 | Injector 4 | — | W26 | — | 0.5 | NEXUSS3-A-4 | — | — | — |
| 3 | Injector 3 | — | W25 | — | 0.5 | NEXUSS3-A-3 | — | — | — |
| 4 | Injector 2 | — | W24 | — | 0.5 | NEXUSS3-A-2 | — | — | — |
| 5 | Injector 1 | — | W23 | — | 0.5 | NEXUSS3-A-1 | — | — | — |
| 6 | VTEC solenoid | — | W33 | — | 0.5 | NEXUSS3-A-19 | — | — | — |
| 7 | Unused cavity | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor | — | W42 | — | 0.5 | NEXUSS3-C-14 | — | — | — |
| 9 | Unused cavity | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal | — | — | — | — | — | — | — | — |
| 11 | VTEC oil pressure switch | — | W50 | — | 0.5 | NEXUSS3-C-6 | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal | — | W45 | — | 0.5 | NEXUSS3-C-17 | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Engine mount control solenoid | — | W36 | — | 0.5 | NEXUSS3-A-5 | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor | — | W44 | — | 0.5 | NEXUSS3-C-16 | — | — | — |
| 18 | Alternator control | — | W37 | — | 0.5 | NEXUSS3-A-6 | — | — | — |
| 19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | — | — | — | — |
| 20 | Throttle actuator command to throttle control module (SEDF) | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve | — | W38 | — | 0.5 | NEXUSS3-A-7 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | Unused cavity | — | — | — | — | — | — | — | — |
OEM-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Cruise set switch | — | W51 | — | 0.5 | NEXUSS3-C-7 | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Unused cavity | — | — | — | — | — | — | — | — |
| 4 | Cruise main switch | — | W52 | — | 0.5 | NEXUSS3-C-8 | — | — | — |
| 5 | Unused cavity | — | — | — | — | — | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Cruise resume switch | — | W53 | — | 0.5 | NEXUSS3-C-19 | — | — | — |
| 8 | Brake pedal position switch | — | W54 | — | 0.5 | NEXUSS3-C-20 | — | — | — |
| 9 | Cruise clutch signal | — | — | — | — | — | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Unused cavity | — | — | — | — | — | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Throttle actuator relay | — | — | — | — | — | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coolant temp sensor 2 | — | W43 | — | 0.5 | NEXUSS3-C-15 | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Logic ground 3 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 | — | — | — | — | — | — | — | — |
| 5 | Sensor voltage 3 | — | — | — | — | — | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Main relay control | — | W29 | — | 0.5 | NEXUSS3-A-9 | — | — | — |
| 8 | A/F sensor heater relay | — | W32 | — | 0.5 | NEXUSS3-A-16 | — | — | — |
| 9 | Ignition signal | — | W27 | — | 0.5 | NEXUSS3-A-13 | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | CAN H | — | W55 | — | 0.5 | NEXUSS3-A-23 | — | — | — |
| 12 | Radiator fan control | — | W30 | — | 0.5 | NEXUSS3-A-14 | — | — | — |
| 13 | Multiplex communication | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor | — | W46 | — | 0.5 | NEXUSS3-C-18 | — | — | — |
| 15 | Electrical load detector | — | W47 | — | 0.5 | NEXUSS3-C-27 | — | — | — |
| 16 | Power steering load detector | — | W48 | — | 0.5 | NEXUSS3-C-28 | — | — | — |
| 17 | Fuel pump relay | — | W28 | — | 0.5 | NEXUSS3-A-26 | — | — | — |
| 18 | A/C clutch relay | — | W31 | — | 0.5 | NEXUSS3-A-15 | — | — | — |
| 19 | Evap canister vent shut valve | — | W39 | — | 0.5 | NEXUSS3-A-8 | — | — | — |
| 20 | Secondary O2 sensor | — | W41 | — | 0.5 | NEXUSS3-C-13 | — | — | — |
| 21 | Secondary O2 heater | — | W34 | — | 0.5 | NEXUSS3-C-33 | — | — | — |
| 22 | Brake pedal switch | — | — | — | — | — | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | W56 | — | 0.5 | NEXUSS3-A-24 | — | — | — |
| 25 | Engine speed pulse (tacho) | — | — | — | — | — | — | — | — |
| 26 | Vehicle speed output | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code | — | — | — | — | — | — | — | — |
| 28 | A/C switch signal | — | — | — | — | — | — | — | — |
| 29 | Service check signal | — | — | — | — | — | — | — | — |
| 30 | Write enable signal | — | — | — | — | — | — | — | — |
| 31 | Unused cavity | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W12 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | NEXUSS3-C-26 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | NEXUSS3-C-2 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | NEXUSS3-C-4 | — | — | — |
| 1 | — | — | W61 | — | 0.5 | TPS-J-GND | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | NEXUSS3-A-18 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | NEXUSS3-A-25 | — | — | — |
SP-5V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W59 | — | 0.5 | TPS-J-VCC | — | — | — |
| 1 | — | — | W58 | — | 0.5 | NEXUSS3-C-25 | — | — | — |
| 1 | — | — | W57 | — | 0.5 | OEM-A-21 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-A-8 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | NEXUSS3-A-10 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | NEXUSS3-A-11 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A-9 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-5 | — | — | — |
TPS-J
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| VCC | 5V supply in | — | W59 | — | 0.5 | SP-5V-1 | — | — | — |
| SIG | Throttle position signal | — | W60 | — | 0.5 | NEXUSS3-C-12 | — | — | — |
| GND | Sensor ground | — | W61 | — | 0.5 | SP-0V-1 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Knock sensor | knock_in | NEXUSS3-C-23 | Knock 1 | knock_in | single_source | |
| OEM-A-10 | A/F sensor heater | low_side_out | NEXUSS3-A-17 | DPO 6 | low_side_out | single_source | |
| OEM-A-11 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-13 | Ignition coil 4 | ignition_out | NEXUSS3-A-30 | Ignition 4 | ignition_out | single_source | |
| OEM-A-14 | Ignition coil 3 | ignition_out | NEXUSS3-A-29 | Ignition 3 | ignition_out | single_source | |
| OEM-A-15 | Ignition coil 2 | ignition_out | NEXUSS3-A-28 | Ignition 2 | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 | ignition_out | NEXUSS3-A-27 | Ignition 1 | ignition_out | single_source | |
| OEM-A-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-18 | Vehicle speed sensor | digital_in | NEXUSS3-C-5 | SPI 1 | digital_in | single_source | |
| OEM-A-19 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-2 | Ignition power 2 | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-A-20 | Sensor voltage 2 | vref | — | — | — | corroborated | |
| OEM-A-21 | Sensor voltage 1 | vref | NEXUSS3-C-25 + TPS-J-VCC | +5V + 5V supply in | power_in + vref | single_source | |
| OEM-A-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-23 | Sensor ground 2 | sensor_ground | — | — | — | corroborated | |
| OEM-A-24 | Sensor ground 1 | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 + TPS-J-GND | Trigger - + Signal ground + Home - + Sensor ground | sensor_ground + trigger_in | single_source | |
| OEM-A-25 | Accelerator pedal position B | analog_in | — | — | — | corroborated | |
| OEM-A-26 | Accelerator pedal position A | analog_in | — | — | — | corroborated | |
| OEM-A-27 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-28 | A/F sensor signal − | — | — | — | — | single_source | |
| OEM-A-29 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-3 | Ignition power 1 | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-A-30 | MAP sensor | analog_in | NEXUSS3-C-10 | AVI 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor signal + | — | — | — | — | single_source | |
| OEM-A-4 | Power ground 2 | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-A-5 | Power ground 1 | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-A-6 | Cam position sensor (T2) | trigger_in | NEXUSS3-C-3 | Home + | trigger_in | single_source | |
| OEM-A-7 | Crank position sensor (T1) | trigger_in | NEXUSS3-C-1 | Trigger + | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-A-9 | Logic ground 1 | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-B-1 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-10 | Alternator L signal | — | — | — | — | single_source | |
| OEM-B-11 | VTEC oil pressure switch | digital_in | NEXUSS3-C-6 | SPI 2 | digital_in | single_source | |
| OEM-B-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-13 | Alternator FR signal | analog_in | NEXUSS3-C-17 | AVI 8 | analog_in | single_source | |
| OEM-B-14 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-15 | Engine mount control solenoid | low_side_out | NEXUSS3-A-5 | Injector 5 | injector_out | single_source | |
| OEM-B-16 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-17 | Intake air temp sensor | temp_in | NEXUSS3-C-16 | AVI 7 | analog_in | single_source | |
| OEM-B-18 | Alternator control | low_side_out | NEXUSS3-A-6 | Injector 6 | injector_out | single_source | |
| OEM-B-19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | conflict | |
| OEM-B-2 | Injector 4 | injector_out | NEXUSS3-A-4 | Injector 4 | injector_out | single_source | |
| OEM-B-20 | Throttle actuator command to throttle control module (SEDF) | — | — | — | — | conflict | |
| OEM-B-21 | Evap canister purge valve | low_side_out | NEXUSS3-A-7 | Injector 7 | injector_out | single_source | |
| OEM-B-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-23 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-24 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-3 | Injector 3 | injector_out | NEXUSS3-A-3 | Injector 3 | injector_out | single_source | |
| OEM-B-4 | Injector 2 | injector_out | NEXUSS3-A-2 | Injector 2 | injector_out | single_source | |
| OEM-B-5 | Injector 1 | injector_out | NEXUSS3-A-1 | Injector 1 | injector_out | single_source | |
| OEM-B-6 | VTEC solenoid | high_side_out | NEXUSS3-A-19 | HBO 1 | hbridge_out | single_source | |
| OEM-B-7 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-8 | Coolant temp sensor | temp_in | NEXUSS3-C-14 | AVI 5 | analog_in | single_source | |
| OEM-B-9 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-1 | Cruise set switch | digital_in | NEXUSS3-C-7 | SPI 3 | digital_in | single_source | |
| OEM-D-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-11 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-13 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-14 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-15 | Throttle actuator relay | low_side_out | — | — | — | single_source | |
| OEM-D-16 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-2 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-3 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-4 | Cruise main switch | digital_in | NEXUSS3-C-8 | SPI 4 | digital_in | single_source | |
| OEM-D-5 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-7 | Cruise resume switch | digital_in | NEXUSS3-C-19 | SPI 5 | digital_in | single_source | |
| OEM-D-8 | Brake pedal position switch | digital_in | NEXUSS3-C-20 | SPI 6 | digital_in | single_source | |
| OEM-D-9 | Cruise clutch signal | digital_in | — | — | — | single_source | |
| OEM-E-1 | Coolant temp sensor 2 | temp_in | NEXUSS3-C-15 | AVI 6 | analog_in | single_source | |
| OEM-E-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-11 | CAN H | can_h | NEXUSS3-A-23 | CAN 1 High | can_h | single_source | |
| OEM-E-12 | Radiator fan control | low_side_out | NEXUSS3-A-14 | DPO 3 | low_side_out | single_source | |
| OEM-E-13 | Multiplex communication | serial | — | — | — | single_source | |
| OEM-E-14 | Fuel tank pressure sensor | analog_in | NEXUSS3-C-18 | AVI 9 | analog_in | single_source | |
| OEM-E-15 | Electrical load detector | analog_in | NEXUSS3-C-27 | AVI 10 | analog_in | single_source | |
| OEM-E-16 | Power steering load detector | analog_in | NEXUSS3-C-28 | AVI 11 | analog_in | corroborated | |
| OEM-E-17 | Fuel pump relay | low_side_out | NEXUSS3-A-26 | ECR output | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay | low_side_out | NEXUSS3-A-15 | DPO 4 | low_side_out | single_source | |
| OEM-E-19 | Evap canister vent shut valve | low_side_out | NEXUSS3-A-8 | Injector 8 | injector_out | single_source | |
| OEM-E-2 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-20 | Secondary O2 sensor | lambda_nb_in | NEXUSS3-C-13 | AVI 4 | analog_in | single_source | |
| OEM-E-21 | Secondary O2 heater | low_side_out | NEXUSS3-C-33 | WBI 1 Heater - | low_side_out | single_source | |
| OEM-E-22 | Brake pedal switch | digital_in | — | — | — | single_source | |
| OEM-E-23 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-24 | CAN L | can_l | NEXUSS3-A-24 | CAN 1 Low | can_l | single_source | |
| OEM-E-25 | Engine speed pulse (tacho) | tacho_out | — | — | — | single_source | |
| OEM-E-26 | Vehicle speed output | tacho_out | — | — | — | single_source | |
| OEM-E-27 | Immobilizer code | — | — | — | — | single_source | |
| OEM-E-28 | A/C switch signal | digital_in | — | — | — | single_source | |
| OEM-E-29 | Service check signal | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-E-30 | Write enable signal | — | — | — | — | single_source | |
| OEM-E-31 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-4 | Sensor ground 3 | sensor_ground | — | — | — | corroborated | |
| OEM-E-5 | Sensor voltage 3 | vref | — | — | — | corroborated | |
| OEM-E-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-7 | Main relay control | low_side_out | NEXUSS3-A-9 | DPO 1 | low_side_out | single_source | |
| OEM-E-8 | A/F sensor heater relay | low_side_out | NEXUSS3-A-16 | DPO 5 | low_side_out | single_source | |
| OEM-E-9 | Ignition signal | digital_in | NEXUSS3-A-13 | Ignition switch input | digital_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | no route | Ignition power 2 | — | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | no route | Ignition power 1 | — | |
| W3 | SP-14V-1 | NEXUSS3-A-18 | 0.85 | no route | +12V switched input | — | |
| W4 | SP-14V-1 | NEXUSS3-A-25 | 0.85 | no route | +12V switched input | — | |
| W5 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 | — | |
| W6 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 | — | |
| W7 | OEM-A-8 | SP-GND-1 | 0.85 | no route | Logic ground 2 | — | |
| W8 | OEM-A-9 | SP-GND-1 | 0.85 | no route | Logic ground 1 | — | |
| W9 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 | — | |
| W10 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | no route | Battery ground | — | |
| W11 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | no route | Battery ground | — | |
| W12 | OEM-A-24 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W13 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | no route | Signal ground | — | |
| W14 | OEM-A-7 | NEXUSS3-C-1 | 0.5 | no route | Crank position sensor (T1) | — | |
| W15 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | no route | Trigger - | — | |
| W16 | OEM-A-6 | NEXUSS3-C-3 | 0.5 | no route | Cam position sensor (T2) | — | |
| W17 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | no route | Home - | — | |
| W18 | OEM-A-1 | NEXUSS3-C-23 | 0.5 | no route | Knock sensor | — | |
| W19 | OEM-A-16 | NEXUSS3-A-27 | 0.5 | no route | Ignition coil 1 | — | |
| W20 | OEM-A-15 | NEXUSS3-A-28 | 0.5 | no route | Ignition coil 2 | — | |
| W21 | OEM-A-14 | NEXUSS3-A-29 | 0.5 | no route | Ignition coil 3 | — | |
| W22 | OEM-A-13 | NEXUSS3-A-30 | 0.5 | no route | Ignition coil 4 | — | |
| W23 | OEM-B-5 | NEXUSS3-A-1 | 0.5 | no route | Injector 1 | — | |
| W24 | OEM-B-4 | NEXUSS3-A-2 | 0.5 | no route | Injector 2 | — | |
| W25 | OEM-B-3 | NEXUSS3-A-3 | 0.5 | no route | Injector 3 | — | |
| W26 | OEM-B-2 | NEXUSS3-A-4 | 0.5 | no route | Injector 4 | — | |
| W27 | OEM-E-9 | NEXUSS3-A-13 | 0.5 | no route | Ignition signal | — | |
| W28 | OEM-E-17 | NEXUSS3-A-26 | 0.5 | no route | Fuel pump relay | — | |
| W29 | OEM-E-7 | NEXUSS3-A-9 | 0.5 | no route | Main relay control | — | |
| W30 | OEM-E-12 | NEXUSS3-A-14 | 0.5 | no route | Radiator fan control | — | |
| W31 | OEM-E-18 | NEXUSS3-A-15 | 0.5 | no route | A/C clutch relay | — | |
| W32 | OEM-E-8 | NEXUSS3-A-16 | 0.5 | no route | A/F sensor heater relay | — | |
| W33 | OEM-B-6 | NEXUSS3-A-19 | 0.5 | no route | VTEC solenoid | — | |
| W34 | OEM-E-21 | NEXUSS3-C-33 | 0.5 | no route | Secondary O2 heater | — | |
| W35 | OEM-A-10 | NEXUSS3-A-17 | 0.5 | no route | A/F sensor heater | — | |
| W36 | OEM-B-15 | NEXUSS3-A-5 | 0.5 | no route | Engine mount control solenoid | — | |
| W37 | OEM-B-18 | NEXUSS3-A-6 | 0.5 | no route | Alternator control | — | |
| W38 | OEM-B-21 | NEXUSS3-A-7 | 0.5 | no route | Evap canister purge valve | — | |
| W39 | OEM-E-19 | NEXUSS3-A-8 | 0.5 | no route | Evap canister vent shut valve | — | |
| W40 | OEM-A-30 | NEXUSS3-C-10 | 0.5 | no route | MAP sensor | — | |
| W41 | OEM-E-20 | NEXUSS3-C-13 | 0.5 | no route | Secondary O2 sensor | — | |
| W42 | OEM-B-8 | NEXUSS3-C-14 | 0.5 | no route | Coolant temp sensor | — | |
| W43 | OEM-E-1 | NEXUSS3-C-15 | 0.5 | no route | Coolant temp sensor 2 | — | |
| W44 | OEM-B-17 | NEXUSS3-C-16 | 0.5 | no route | Intake air temp sensor | — | |
| W45 | OEM-B-13 | NEXUSS3-C-17 | 0.5 | no route | Alternator FR signal | — | |
| W46 | OEM-E-14 | NEXUSS3-C-18 | 0.5 | no route | Fuel tank pressure sensor | — | |
| W47 | OEM-E-15 | NEXUSS3-C-27 | 0.5 | no route | Electrical load detector | — | |
| W48 | OEM-E-16 | NEXUSS3-C-28 | 0.5 | no route | Power steering load detector | — | |
| W49 | OEM-A-18 | NEXUSS3-C-5 | 0.5 | no route | Vehicle speed sensor | — | |
| W50 | OEM-B-11 | NEXUSS3-C-6 | 0.5 | no route | VTEC oil pressure switch | — | |
| W51 | OEM-D-1 | NEXUSS3-C-7 | 0.5 | no route | Cruise set switch | — | |
| W52 | OEM-D-4 | NEXUSS3-C-8 | 0.5 | no route | Cruise main switch | — | |
| W53 | OEM-D-7 | NEXUSS3-C-19 | 0.5 | no route | Cruise resume switch | — | |
| W54 | OEM-D-8 | NEXUSS3-C-20 | 0.5 | no route | Brake pedal position switch | — | |
| W55 | OEM-E-11 | NEXUSS3-A-23 | 0.5 | no route | CAN H | — | |
| W56 | OEM-E-24 | NEXUSS3-A-24 | 0.5 | no route | CAN L | — | |
| W57 | OEM-A-21 | SP-5V-1 | 0.5 | no route | Sensor voltage 1 | — | |
| W58 | SP-5V-1 | NEXUSS3-C-25 | 0.5 | no route | +5V | — | |
| W59 | SP-5V-1 | TPS-J-VCC | 0.5 | no route | 5V supply in | — | |
| W60 | TPS-J-SIG | NEXUSS3-C-12 | 0.5 | no route | Throttle position signal | — | |
| W61 | TPS-J-GND | SP-0V-1 | 0.5 | no route | Sensor ground | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | S2K-0609-ECU-A | Honda | S2000 2006–09 ECU plug A (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-ECU-B | Honda | S2000 2006–09 ECU plug B (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-ECU-D | Honda | S2000 2006–09 ECU plug D (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-ECU-E | Honda | S2000 2006–09 ECU plug E (P/N unknown) | 1.000 | ea |
| connector | TPS-3W | Generic | 3-way throttle position sensor plug (match to your throttle body) | 1.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (14)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | LOAD_UNKNOWN | NEXUSS3-A-26 | NEXUSS3-A-26 "ECR output" drives OEM-E-17 Fuel pump relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-B-6 ↔ NEXUSS3-A-19 | OEM-B-6 "VTEC solenoid" [high_side_out] is wired to NEXUSS3-A-19 "HBO 1" [hbridge_out]. A half-bridge can act as a high-side switch only if configured that way. |
| info | NET_FAMILY | NEXUSS3-C-2 ↔ TPS-J-GND | NEXUSS3-C-2 "Trigger -" [trigger_in] is wired to TPS-J-GND "Sensor ground" [sensor_ground]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-B-15 ↔ NEXUSS3-A-5 | OEM-B-15 "Engine mount control solenoid" [low_side_out] is wired to NEXUSS3-A-5 "Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-17 ↔ NEXUSS3-C-16 | OEM-B-17 "Intake air temp sensor" [temp_in] is wired to NEXUSS3-C-16 "AVI 7" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-B-18 ↔ NEXUSS3-A-6 | OEM-B-18 "Alternator control" [low_side_out] is wired to NEXUSS3-A-6 "Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-21 ↔ NEXUSS3-A-7 | OEM-B-21 "Evap canister purge valve" [low_side_out] is wired to NEXUSS3-A-7 "Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-8 ↔ NEXUSS3-C-14 | OEM-B-8 "Coolant temp sensor" [temp_in] is wired to NEXUSS3-C-14 "AVI 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-E-1 ↔ NEXUSS3-C-15 | OEM-E-1 "Coolant temp sensor 2" [temp_in] is wired to NEXUSS3-C-15 "AVI 6" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-E-19 ↔ NEXUSS3-A-8 | OEM-E-19 "Evap canister vent shut valve" [low_side_out] is wired to NEXUSS3-A-8 "Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | PIN_UNSOURCED | TPS-J-GND | TPS-J-GND "Sensor ground" has no recorded source. |
| info | PIN_UNSOURCED | TPS-J-SIG | TPS-J-SIG "Throttle position signal" has no recorded source. |
| info | PIN_UNSOURCED | TPS-J-VCC | TPS-J-VCC "5V supply in" has no recorded source. |
| info | UNMAPPED | OEM | 15 optional OEM pins are not mapped: OEM-A-28 A/F sensor signal −; OEM-A-31 A/F sensor signal +; OEM-B-10 Alternator L signal; OEM-B-19 Throttle actuator command to throttle control module (SEFD); OEM-B-20 Throttle actuator command to throttle control module (SEDF); OEM-D-15 Throttle actuator relay; OEM-D-9 Cruise clutch signal; OEM-E-13 Multiplex communication; OEM-E-22 Brake pedal switch; OEM-E-25 Engine speed pulse (tacho); OEM-E-26 Vehicle speed output; OEM-E-27 Immobilizer code; OEM-E-28 A/C switch signal; OEM-E-29 Service check signal; OEM-E-30 Write enable signal |
Accepted (6)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-A-20 | DBW removed: accelerator pedal dropped (its signal, 5 V supply and sensor ground are no longer needed). | mapping-proposal |
| REQUIRED_UNMAPPED | OEM-A-23 | DBW removed: accelerator pedal dropped (its signal, 5 V supply and sensor ground are no longer needed). | mapping-proposal |
| REQUIRED_UNMAPPED | OEM-A-25 | DBW removed: accelerator pedal dropped (its signal, 5 V supply and sensor ground are no longer needed). | mapping-proposal |
| REQUIRED_UNMAPPED | OEM-A-26 | DBW removed: accelerator pedal dropped (its signal, 5 V supply and sensor ground are no longer needed). | mapping-proposal |
| REQUIRED_UNMAPPED | OEM-E-4 | DBW removed: accelerator pedal dropped (its signal, 5 V supply and sensor ground are no longer needed). | mapping-proposal |
| REQUIRED_UNMAPPED | OEM-E-5 | DBW removed: accelerator pedal dropped (its signal, 5 V supply and sensor ground are no longer needed). | mapping-proposal |
Notes
No notes.
Sources
| Reliability | Kind | Title | URL |
|---|---|---|---|
| 4 | vendor_doc | AEM 30-6053 Series 2 Plug & Play EMS, 2006–2008 S2000 AP2 (original ECU pinout) | https://documents.aemelectronics.com/techlibrary_30-6053_series_2_plug___play_ems.pdf |
| 4 | vendor_doc | Haltech: Nexus S3 Plug 'n' Play adapter QSG (Subaru WRX/STI ADM, HT-186300) — ECU Connector A & C pinout | https://www.haltech.com/product/ht-186300-nexus-s3-plug-n-play-adapter-harness/ |
| 4 | vendor_doc | Haltech: Nexus S3/S2 ECU Overview (QSG) — specifications | https://store.haltech.com/product/ht-213000-nexus-s3-ecu-only/ |
| 4 | service_manual | Honda S2000 Service Manual 2000–2008 (DBW engine control) | https://www.s2000.wiki/view/images/7/7f/Service_Manual_2000-2008.pdf |
| 3 | vendor_doc | ScienceofSpeed Link G4X ECU, S2000 2006–09 (product page) | https://www.scienceofspeed.com/s2000-2000-09/scienceofspeed-link-g4x-ecu-s2000-2006-09-enpp-3822.html |