Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
Components
| Ref | Kind | Part | Exclude from BOM |
|---|---|---|---|
| MS3PROULTIMA-A | connector | ||
| MS3PROULTIMA-B | connector | ||
| MS3PROULTIMA-C | connector | ||
| OEM-A | connector | ||
| OEM-B | connector | ||
| OEM-D | connector | ||
| OEM-E | connector | ||
| RLY1-R | connector | ||
| SP-0V | splice | ||
| SP-14V | splice | ||
| SP-GND | splice | ||
| TB-J | connector |
Create part
Cut list
Lengths need a layout (0 of 85 routed).
| Wire | From / To | Gauge | Signal |
|---|---|---|---|
| W1 | OEM-A-2 / SP-14V-1 | 0.85 | Ignition power 2 |
| W2 | OEM-A-3 / SP-14V-1 | 0.85 | Ignition power 1 |
| W3 | SP-14V-1 / MS3PROULTIMA-A-35 | 0.85 | 12V+ switched power in |
| W4 | OEM-A-4 / SP-GND-1 | 0.85 | Power ground 2 |
| W5 | OEM-A-5 / SP-GND-1 | 0.85 | Power ground 1 |
| W6 | OEM-A-8 / SP-GND-1 | 0.85 | Logic ground 2 |
| W7 | OEM-A-9 / SP-GND-1 | 0.85 | Logic ground 1 |
| W8 | OEM-E-3 / SP-GND-1 | 0.85 | Logic ground 3 |
| W9 | SP-GND-1 / MS3PROULTIMA-A-13 | 0.85 | Power ground |
| W10 | SP-GND-1 / MS3PROULTIMA-B-18 | 0.85 | Ground |
| W11 | SP-GND-1 / MS3PROULTIMA-B-3 | 0.85 | Ground |
| W12 | SP-GND-1 / MS3PROULTIMA-B-5 | 0.85 | Ground |
| W13 | SP-GND-1 / MS3PROULTIMA-B-7 | 0.85 | Ground |
| W14 | SP-GND-1 / MS3PROULTIMA-B-9 | 0.85 | Ground |
| W15 | OEM-A-23 / SP-0V-1 | 0.5 | Sensor ground 2 |
| W16 | OEM-A-24 / SP-0V-1 | 0.5 | Sensor ground 1 |
| W17 | OEM-E-4 / SP-0V-1 | 0.5 | Sensor ground 3 |
| W18 | TB-J-GND / SP-0V-1 | 0.5 | Throttle sensor ground |
| W19 | SP-0V-1 / MS3PROULTIMA-A-16 | 0.5 | Logic ground |
| W20 | SP-0V-1 / MS3PROULTIMA-A-18 | 0.5 | Sensor return |
| W21 | SP-0V-1 / MS3PROULTIMA-C-17 | 0.5 | Sensor return |
| W22 | SP-0V-1 / MS3PROULTIMA-C-18 | 0.5 | Sensor return |
| W23 | SP-0V-1 / MS3PROULTIMA-C-19 | 0.5 | Sensor return |
| W24 | SP-0V-1 / MS3PROULTIMA-C-20 | 0.5 | Sensor return |
| W25 | SP-0V-1 / MS3PROULTIMA-C-21 | 0.5 | Sensor return |
| W26 | OEM-A-20 / MS3PROULTIMA-C-15 | 0.5 | Sensor voltage 2 |
| W27 | OEM-A-21 / MS3PROULTIMA-C-22 | 0.5 | Sensor voltage 1 |
| W28 | OEM-E-5 / MS3PROULTIMA-C-8 | 0.5 | Sensor voltage 3 |
| W29 | TB-J-VCC / MS3PROULTIMA-A-8 | 0.5 | Throttle sensor 5V supply |
| W30 | OEM-A-7 / MS3PROULTIMA-A-6 | 0.5 | Crank position sensor (T1) |
| W31 | SP-0V-1 / MS3PROULTIMA-A-15 | 0.5 | CKP− |
| W32 | OEM-A-6 / MS3PROULTIMA-A-26 | 0.5 | Cam position sensor (T2) |
| W33 | SP-0V-1 / MS3PROULTIMA-A-27 | 0.5 | CMP− |
| W34 | OEM-A-1 / MS3PROULTIMA-A-31 | 0.5 | Knock sensor |
| W35 | OEM-A-16 / MS3PROULTIMA-B-13 | 0.5 | Ignition coil 1 |
| W36 | OEM-A-15 / MS3PROULTIMA-B-14 | 0.5 | Ignition coil 2 |
| W37 | OEM-A-14 / MS3PROULTIMA-B-15 | 0.5 | Ignition coil 3 |
| W38 | OEM-A-13 / MS3PROULTIMA-B-16 | 0.5 | Ignition coil 4 |
| W39 | OEM-B-5 / MS3PROULTIMA-A-3 | 0.5 | Injector 1 |
| W40 | OEM-B-4 / MS3PROULTIMA-A-4 | 0.5 | Injector 2 |
| W41 | OEM-B-3 / MS3PROULTIMA-B-1 | 0.5 | Injector 3 |
| W42 | OEM-B-2 / MS3PROULTIMA-B-10 | 0.5 | Injector 4 |
| W43 | TB-J-M- / MS3PROULTIMA-B-31 | 0.5 | Throttle motor − |
| W44 | TB-J-M+ / MS3PROULTIMA-B-30 | 0.5 | Throttle motor + |
| W45 | OEM-E-17 / MS3PROULTIMA-A-28 | 0.5 | Fuel pump relay |
| W46 | OEM-E-7 / MS3PROULTIMA-A-14 | 0.5 | Main relay control |
| W47 | OEM-B-6 / RLY1-R-OUT | 0.5 | VTEC solenoid |
| W48 | SP-14V-1 / RLY1-R-IN | 0.5 | Relay contact input (switched +12 V) |
| W49 | SP-14V-1 / RLY1-R-COIL+ | 0.5 | Relay coil positive (switched +12 V) |
| W50 | RLY1-R-COIL- / MS3PROULTIMA-C-4 | 0.5 | Relay coil negative (ECU low-side driver) |
| W51 | OEM-A-30 / MS3PROULTIMA-A-19 | 0.5 | MAP sensor |
| W52 | OEM-A-25 / MS3PROULTIMA-A-9 | 0.5 | Accelerator pedal position B |
| W53 | OEM-A-26 / MS3PROULTIMA-A-20 | 0.5 | Accelerator pedal position A |
| W54 | OEM-B-8 / MS3PROULTIMA-A-11 | 0.5 | Coolant temp sensor |
| W55 | TB-J-TPS1 / MS3PROULTIMA-A-21 | 0.5 | Throttle position 1 |
| W56 | TB-J-TPS2 / MS3PROULTIMA-A-22 | 0.5 | Throttle position 2 |
| W57 | OEM-E-9 / MS3PROULTIMA-B-19 | 0.5 | Ignition signal |
| W58 | OEM-D-15 / MS3PROULTIMA-A-29 | 0.5 | Throttle actuator relay |
| W59 | OEM-E-12 / MS3PROULTIMA-C-3 | 0.5 | Radiator fan control |
| W60 | OEM-E-18 / MS3PROULTIMA-A-30 | 0.5 | A/C clutch relay |
| W61 | OEM-E-8 / MS3PROULTIMA-C-2 | 0.5 | A/F sensor heater relay |
| W62 | OEM-E-21 / MS3PROULTIMA-C-1 | 0.5 | Secondary O2 heater |
| W63 | OEM-A-10 / MS3PROULTIMA-A-1 | 0.5 | A/F sensor heater |
| W64 | OEM-B-15 / MS3PROULTIMA-A-2 | 0.5 | Engine mount control solenoid |
| W65 | OEM-B-18 / MS3PROULTIMA-A-5 | 0.5 | Alternator control |
| W66 | OEM-B-21 / MS3PROULTIMA-B-11 | 0.5 | Evap canister purge valve |
| W67 | OEM-E-19 / MS3PROULTIMA-B-12 | 0.5 | Evap canister vent shut valve |
| W68 | OEM-E-25 / MS3PROULTIMA-A-24 | 0.5 | Engine speed pulse (tacho) |
| W69 | OEM-E-20 / MS3PROULTIMA-A-25 | 0.5 | Secondary O2 sensor |
| W70 | OEM-E-1 / MS3PROULTIMA-A-10 | 0.5 | Coolant temp sensor 2 |
| W71 | OEM-B-17 / MS3PROULTIMA-A-23 | 0.5 | Intake air temp sensor |
| W72 | OEM-B-13 / MS3PROULTIMA-A-12 | 0.5 | Alternator FR signal |
| W73 | OEM-E-14 / MS3PROULTIMA-A-17 | 0.5 | Fuel tank pressure sensor |
| W74 | OEM-E-15 / MS3PROULTIMA-C-7 | 0.5 | Electrical load detector |
| W75 | OEM-A-18 / MS3PROULTIMA-B-28 | 0.5 | Vehicle speed sensor |
| W76 | OEM-B-11 / MS3PROULTIMA-A-32 | 0.5 | VTEC oil pressure switch |
| W77 | OEM-D-1 / MS3PROULTIMA-B-20 | 0.5 | Cruise set switch |
| W78 | OEM-D-4 / MS3PROULTIMA-B-29 | 0.5 | Cruise main switch |
| W79 | OEM-D-7 / MS3PROULTIMA-C-11 | 0.5 | Cruise resume switch |
| W80 | OEM-D-8 / MS3PROULTIMA-C-10 | 0.5 | Brake pedal position switch |
| W81 | OEM-D-9 / MS3PROULTIMA-B-34 | 0.5 | Cruise clutch signal |
| W82 | OEM-E-22 / MS3PROULTIMA-B-35 | 0.5 | Brake pedal switch |
| W83 | OEM-E-28 / MS3PROULTIMA-B-17 | 0.5 | A/C switch signal |
| W84 | OEM-E-11 / MS3PROULTIMA-A-34 | 0.5 | CAN H |
| W85 | OEM-E-24 / MS3PROULTIMA-A-33 | 0.5 | CAN L |
Bill of materials
No wire parts assigned: 85 wires need a wire part.
| Part number | Manufacturer | Description | Qty | Unit | Unit price | Buy |
|---|---|---|---|---|---|---|
| connector5 lines | ||||||
| S2K-0609-ECU-A | Honda | S2000 2006–09 ECU plug A (P/N unknown) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| S2K-0609-ECU-B | Honda | S2000 2006–09 ECU plug B (P/N unknown) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| S2K-0609-ECU-D | Honda | S2000 2006–09 ECU plug D (P/N unknown) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| S2K-0609-ECU-E | Honda | S2000 2006–09 ECU plug E (P/N unknown) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| S2K-0609-TB | Honda | 2006–09 S2000 throttle body plug, 6-way (pin numbers from Link forum dealer post; housing P/N unknown) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |