S2000 AP2 2006–09 cable conversion → Motorsport Electronics ME221
AP2 2006–09 converted to cable throttle — Motorsport Electronics — ME221
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-11
Before you start
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.
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 54 wires · 11 connectors · 5 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | ME221-C1-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | ME221-C1-64 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-9 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-E-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | ME221-C1-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | ME221-C1-61 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | ME221-C1-89 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | ME221-C1-90 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | ME221-C1-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | ME221-C1-84 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-7 | ME221-C1-81 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-A-6 | ME221-C1-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-A-1 | ME221-C1-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-16 | ME221-C1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-15 | ME221-C1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-14 | ME221-C1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-13 | ME221-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B-5 | ME221-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B-4 | ME221-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B-3 | ME221-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-2 | ME221-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E-17 | ME221-C1-73 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E-7 | ME221-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-6 | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | RLY1-R-COIL- | ME221-C1-74 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-30 | ME221-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-8 | ME221-C1-86 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E-12 | ME221-C1-69 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E-18 | ME221-C1-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E-8 | ME221-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E-21 | ME221-C1-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-10 | ME221-C1-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B-15 | ME221-C1-72 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-B-18 | ME221-C1-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E-25 | ME221-C1-79 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E-20 | ME221-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E-1 | ME221-C1-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-18 | ME221-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B-11 | ME221-C1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E-11 | ME221-C1-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E-24 | ME221-C1-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-21 | SP-5V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | SP-5V-1 | ME221-C1-46 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | SP-5V-1 | TPS-J-VCC | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | TPS-J-SIG | ME221-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | TPS-J-GND | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ |
Bench test (before first power-up)
Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).
| # | Probe A | Probe B | Expect | Why | Reading |
|---|---|---|---|---|---|
| 1 | ME221-C1-15 | ME221-C1-10 | open (OL) | +12 V supply must not touch power ground | |
| 2 | ME221-C1-15 | ME221-C1-52 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | ME221-C1-46 | ME221-C1-52 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | ME221-C1-10 | ME221-C1-46 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | ME221-C1-10 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 6 | ME221-C1-15 | ME221-C1-46 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | ME221-C1-46 | RLY1-R-OUT | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 8 | ME221-C1-52 | RLY1-R-OUT | open (OL) | sensor ground must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
ME221-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | COIL 4 | — | W23 | — | 0.5 | OEM-A-13 | — | — | — |
| 10 | GROUND CHASSIS | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | LOW SIDE 2 | — | W29 | — | 0.5 | OEM-E-7 | — | — | — |
| 14 | LSU +12V | — | — | — | — | — | — | — | — |
| 15 | IGN +12V | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 16 | LSU HEATER -VE | — | W38 | — | 0.5 | OEM-E-8 | — | — | — |
| 17 | ANA VOLT 3 | — | W53 | — | 0.5 | TPS-J-SIG | — | — | — |
| 18 | ANA VOLT 4 | — | W44 | — | 0.5 | OEM-E-20 | — | — | — |
| 19 | LSU UN | — | — | — | — | — | — | — | — |
| 2 | COIL 3 | — | W22 | — | 0.5 | OEM-A-14 | — | — | — |
| 20 | LSU VM | — | — | — | — | — | — | — | — |
| 21 | CAN 1 HIGH | — | W48 | — | 0.5 | OEM-E-11 | — | — | — |
| 22 | CAM A VR+ | — | W18 | — | 0.5 | OEM-A-6 | — | — | — |
| 23 | CAM A VR- | — | — | — | — | — | — | — | — |
| 24 | SERIAL 1 GROUND | — | — | — | — | — | — | — | — |
| 25 | SERIAL 1 TX | — | — | — | — | — | — | — | — |
| 26 | ANA VOLT 1 | — | W34 | — | 0.5 | OEM-A-30 | — | — | — |
| 3 | INJECTOR 4 | — | W27 | — | 0.5 | OEM-B-2 | — | — | — |
| 31 | COIL 2 | — | W21 | — | 0.5 | OEM-A-15 | — | — | — |
| 32 | COIL 1 | — | W20 | — | 0.5 | OEM-A-16 | — | — | — |
| 33 | INJECTOR 3 | — | W26 | — | 0.5 | OEM-B-3 | — | — | — |
| 35 | USB D+ | — | — | — | — | — | — | — | — |
| 36 | USB D- | — | — | — | — | — | — | — | — |
| 37 | LOW SIDE RELAY 11 | — | W39 | — | 0.5 | OEM-E-21 | — | — | — |
| 38 | USB VBUS | — | — | — | — | — | — | — | — |
| 39 | LOW SIDE 6 | — | W37 | — | 0.5 | OEM-E-18 | — | — | — |
| 4 | INJECTOR 2 | — | W25 | — | 0.5 | OEM-B-4 | — | — | — |
| 41 | USB GROUND | — | — | — | — | — | — | — | — |
| 42 | LOW SIDE RELAY 12 | — | W40 | — | 0.5 | OEM-A-10 | — | — | — |
| 43 | LOW SIDE RELAY 14 | — | W42 | — | 0.5 | OEM-B-18 | — | — | — |
| 44 | LOW SIDE 4 | — | — | — | — | — | — | — | — |
| 45 | 5V REF | — | — | — | — | — | — | — | — |
| 46 | 5V REF | — | W51 | — | 0.5 | SP-5V-1 | — | — | — |
| 49 | LSU IA | — | — | — | — | — | — | — | — |
| 50 | LSU IP | — | — | — | — | — | — | — | — |
| 51 | CAN 1 LOW | — | W49 | — | 0.5 | OEM-E-24 | — | — | — |
| 52 | SENSORS GROUND | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | KNOCK 1 SIGNAL | — | W19 | — | 0.5 | OEM-A-1 | — | — | — |
| 55 | SERIAL 1 RX | — | — | — | — | — | — | — | — |
| 56 | ANA VOLT 2 | — | — | — | — | — | — | — | — |
| 57 | ANA TEMP 2 | — | W45 | — | 0.5 | OEM-E-1 | — | — | — |
| 6 | DIG_IN 1 | — | W46 | — | 0.5 | OEM-A-18 | — | — | — |
| 61 | GROUND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 63 | INJECTOR 1 | — | W24 | — | 0.5 | OEM-B-5 | — | — | — |
| 64 | VBAT | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 67 | Stepper 1 / A1 | — | — | — | — | — | — | — | — |
| 68 | Stepper 2 / A2 | — | — | — | — | — | — | — | — |
| 69 | LOW SIDE 5 | — | W36 | — | 0.5 | OEM-E-12 | — | — | — |
| 7 | DIG_IN 2 | — | W47 | — | 0.5 | OEM-B-11 | — | — | — |
| 70 | Stepper 3 / B1 | — | — | — | — | — | — | — | — |
| 71 | Stepper 4 / B2 | — | — | — | — | — | — | — | — |
| 72 | LOW SIDE RELAY 13 | — | W41 | — | 0.5 | OEM-B-15 | — | — | — |
| 73 | LOW SIDE 1 | — | W28 | — | 0.5 | OEM-E-17 | — | — | — |
| 74 | LOW SIDE 3 | — | W33 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| 76 | 5V REF | — | — | — | — | — | — | — | — |
| 79 | TACHOMETER | — | W43 | — | 0.5 | OEM-E-25 | — | — | — |
| 80 | CRANK VR+ | — | — | — | — | — | — | — | — |
| 81 | CRANK VR- | — | W17 | — | 0.5 | OEM-A-7 | — | — | — |
| 84 | Sensor Ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 86 | ANA TEMP 1 | — | W35 | — | 0.5 | OEM-B-8 | — | — | — |
| 89 | GROUND | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 90 | GROUND | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Knock sensor | — | W19 | — | 0.5 | ME221-C1-53 | — | — | — |
| 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) | — | W18 | — | 0.5 | ME221-C1-22 | — | — | — |
| 7 | Crank position sensor (T1) | — | W17 | — | 0.5 | ME221-C1-81 | — | — | — |
| 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 | — | W40 | — | 0.5 | ME221-C1-42 | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 | — | W23 | — | 0.5 | ME221-C1-1 | — | — | — |
| 14 | Ignition coil 3 | — | W22 | — | 0.5 | ME221-C1-2 | — | — | — |
| 15 | Ignition coil 2 | — | W21 | — | 0.5 | ME221-C1-31 | — | — | — |
| 16 | Ignition coil 1 | — | W20 | — | 0.5 | ME221-C1-32 | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor | — | W46 | — | 0.5 | ME221-C1-6 | — | — | — |
| 19 | Unused cavity | — | — | — | — | — | — | — | — |
| 20 | Sensor voltage 2 | — | — | — | — | — | — | — | — |
| 21 | Sensor voltage 1 | — | W50 | — | 0.5 | SP-5V-1 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Sensor ground 2 | — | — | — | — | — | — | — | — |
| 24 | Sensor ground 1 | — | W14 | — | 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 | — | W34 | — | 0.5 | ME221-C1-26 | — | — | — |
| 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 | — | W27 | — | 0.5 | ME221-C1-3 | — | — | — |
| 3 | Injector 3 | — | W26 | — | 0.5 | ME221-C1-33 | — | — | — |
| 4 | Injector 2 | — | W25 | — | 0.5 | ME221-C1-4 | — | — | — |
| 5 | Injector 1 | — | W24 | — | 0.5 | ME221-C1-63 | — | — | — |
| 6 | VTEC solenoid | — | W30 | — | 0.5 | RLY1-R-OUT | — | — | — |
| 7 | Unused cavity | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor | — | W35 | — | 0.5 | ME221-C1-86 | — | — | — |
| 9 | Unused cavity | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal | — | — | — | — | — | — | — | — |
| 11 | VTEC oil pressure switch | — | W47 | — | 0.5 | ME221-C1-7 | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal | — | — | — | — | — | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Engine mount control solenoid | — | W41 | — | 0.5 | ME221-C1-72 | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor | — | — | — | — | — | — | — | — |
| 18 | Alternator control | — | W42 | — | 0.5 | ME221-C1-43 | — | — | — |
| 19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | — | — | — | — |
| 20 | Throttle actuator command to throttle control module (SEDF) | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Unused cavity | — | — | — | — | — | — | — | — |
| 4 | Cruise main switch | — | — | — | — | — | — | — | — |
| 5 | Unused cavity | — | — | — | — | — | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Cruise resume switch | — | — | — | — | — | — | — | — |
| 8 | Brake pedal position switch | — | — | — | — | — | — | — | — |
| 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 | — | W45 | — | 0.5 | ME221-C1-57 | — | — | — |
| 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 | ME221-C1-12 | — | — | — |
| 8 | A/F sensor heater relay | — | W38 | — | 0.5 | ME221-C1-16 | — | — | — |
| 9 | Ignition signal | — | — | — | — | — | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | CAN H | — | W48 | — | 0.5 | ME221-C1-21 | — | — | — |
| 12 | Radiator fan control | — | W36 | — | 0.5 | ME221-C1-69 | — | — | — |
| 13 | Multiplex communication | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor | — | — | — | — | — | — | — | — |
| 15 | Electrical load detector | — | — | — | — | — | — | — | — |
| 16 | Power steering load detector | — | — | — | — | — | — | — | — |
| 17 | Fuel pump relay | — | W28 | — | 0.5 | ME221-C1-73 | — | — | — |
| 18 | A/C clutch relay | — | W37 | — | 0.5 | ME221-C1-39 | — | — | — |
| 19 | Evap canister vent shut valve | — | — | — | — | — | — | — | — |
| 20 | Secondary O2 sensor | — | W44 | — | 0.5 | ME221-C1-18 | — | — | — |
| 21 | Secondary O2 heater | — | W39 | — | 0.5 | ME221-C1-37 | — | — | — |
| 22 | Brake pedal switch | — | — | — | — | — | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | W49 | — | 0.5 | ME221-C1-51 | — | — | — |
| 25 | Engine speed pulse (tacho) | — | W43 | — | 0.5 | ME221-C1-79 | — | — | — |
| 26 | Vehicle speed output | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code | — | — | — | — | — | — | — | — |
| 28 | A/C switch signal | — | — | — | — | — | — | — | — |
| 29 | Service check signal | — | — | — | — | — | — | — | — |
| 30 | Write enable signal | — | — | — | — | — | — | — | — |
| 31 | Unused cavity | — | — | — | — | — | — | — | — |
RLY1-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W32 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W33 | — | 0.5 | ME221-C1-74 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W31 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W30 | — | 0.5 | OEM-B-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W16 | — | 0.5 | ME221-C1-84 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | ME221-C1-52 | — | — | — |
| 1 | — | — | W54 | — | 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 | ME221-C1-15 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | ME221-C1-64 | — | — | — |
| 1 | — | — | W31 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W32 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
SP-5V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W50 | — | 0.5 | OEM-A-21 | — | — | — |
| 1 | — | — | W51 | — | 0.5 | ME221-C1-46 | — | — | — |
| 1 | — | — | W52 | — | 0.5 | TPS-J-VCC | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-8 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A-9 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | ME221-C1-10 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | ME221-C1-61 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | ME221-C1-89 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | ME221-C1-90 | — | — | — |
TPS-J
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| VCC | 5V supply in | — | W52 | — | 0.5 | SP-5V-1 | — | — | — |
| SIG | Throttle position signal | — | W53 | — | 0.5 | ME221-C1-17 | — | — | — |
| GND | Sensor ground | — | W54 | — | 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 | ME221-C1-53 | KNOCK 1 SIGNAL | knock_in | single_source | |
| OEM-A-10 | A/F sensor heater | low_side_out | ME221-C1-42 | LOW SIDE RELAY 12 | 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 | ME221-C1-1 | COIL 4 | ignition_out | single_source | |
| OEM-A-14 | Ignition coil 3 | ignition_out | ME221-C1-2 | COIL 3 | ignition_out | single_source | |
| OEM-A-15 | Ignition coil 2 | ignition_out | ME221-C1-31 | COIL 2 | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 | ignition_out | ME221-C1-32 | COIL 1 | ignition_out | single_source | |
| OEM-A-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-18 | Vehicle speed sensor | digital_in | ME221-C1-6 | DIG_IN 1 | digital_in | single_source | |
| OEM-A-19 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-2 | Ignition power 2 | power_in | ME221-C1-15 + ME221-C1-64 + RLY1-R-COIL+ + RLY1-R-IN | IGN +12V + VBAT + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | single_source | |
| OEM-A-20 | Sensor voltage 2 | vref | — | — | — | corroborated | |
| OEM-A-21 | Sensor voltage 1 | vref | ME221-C1-46 + TPS-J-VCC | 5V REF + 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 | ME221-C1-52 + ME221-C1-84 + TPS-J-GND | SENSORS GROUND + Sensor Ground + Sensor ground | sensor_ground | 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 | ME221-C1-15 + ME221-C1-64 + RLY1-R-COIL+ + RLY1-R-IN | IGN +12V + VBAT + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | single_source | |
| OEM-A-30 | MAP sensor | analog_in | ME221-C1-26 | ANA VOLT 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor signal + | — | — | — | — | single_source | |
| OEM-A-4 | Power ground 2 | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-A-5 | Power ground 1 | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-A-6 | Cam position sensor (T2) | trigger_in | ME221-C1-22 | CAM A VR+ | trigger_in | single_source | |
| OEM-A-7 | Crank position sensor (T1) | trigger_in | ME221-C1-81 | CRANK VR- | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-A-9 | Logic ground 1 | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + 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 | ME221-C1-7 | DIG_IN 2 | digital_in | single_source | |
| OEM-B-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-13 | Alternator FR signal | analog_in | — | — | — | single_source | |
| OEM-B-14 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-15 | Engine mount control solenoid | low_side_out | ME221-C1-72 | LOW SIDE RELAY 13 | low_side_out | single_source | |
| OEM-B-16 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-17 | Intake air temp sensor | temp_in | — | — | — | single_source | |
| OEM-B-18 | Alternator control | low_side_out | ME221-C1-43 | LOW SIDE RELAY 14 | low_side_out | single_source | |
| OEM-B-19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | conflict | |
| OEM-B-2 | Injector 4 | injector_out | ME221-C1-3 | 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 | — | — | — | 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 | ME221-C1-33 | INJECTOR 3 | injector_out | single_source | |
| OEM-B-4 | Injector 2 | injector_out | ME221-C1-4 | INJECTOR 2 | injector_out | single_source | |
| OEM-B-5 | Injector 1 | injector_out | ME221-C1-63 | INJECTOR 1 | injector_out | single_source | |
| OEM-B-6 | VTEC solenoid | high_side_out | RLY1-R-OUT | Relay contact output (switched +12 V to load) | power_out | single_source | |
| OEM-B-7 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-8 | Coolant temp sensor | temp_in | ME221-C1-86 | ANA TEMP 1 | temp_in | single_source | |
| OEM-B-9 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-1 | Cruise set switch | 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 | — | — | — | single_source | |
| OEM-D-5 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-7 | Cruise resume switch | digital_in | — | — | — | single_source | |
| OEM-D-8 | Brake pedal position switch | digital_in | — | — | — | single_source | |
| OEM-D-9 | Cruise clutch signal | digital_in | — | — | — | single_source | |
| OEM-E-1 | Coolant temp sensor 2 | temp_in | ME221-C1-57 | ANA TEMP 2 | temp_in | single_source | |
| OEM-E-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-11 | CAN H | can_h | ME221-C1-21 | CAN 1 HIGH | can_h | single_source | |
| OEM-E-12 | Radiator fan control | low_side_out | ME221-C1-69 | LOW SIDE 5 | low_side_out | single_source | |
| OEM-E-13 | Multiplex communication | serial | — | — | — | single_source | |
| OEM-E-14 | Fuel tank pressure sensor | analog_in | — | — | — | single_source | |
| OEM-E-15 | Electrical load detector | analog_in | — | — | — | single_source | |
| OEM-E-16 | Power steering load detector | analog_in | — | — | — | corroborated | |
| OEM-E-17 | Fuel pump relay | low_side_out | ME221-C1-73 | LOW SIDE 1 | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay | low_side_out | ME221-C1-39 | LOW SIDE 6 | low_side_out | single_source | |
| OEM-E-19 | Evap canister vent shut valve | low_side_out | — | — | — | single_source | |
| OEM-E-2 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-20 | Secondary O2 sensor | lambda_nb_in | ME221-C1-18 | ANA VOLT 4 | analog_in | single_source | |
| OEM-E-21 | Secondary O2 heater | low_side_out | ME221-C1-37 | LOW SIDE RELAY 11 | 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 | ME221-C1-51 | CAN 1 LOW | can_l | single_source | |
| OEM-E-25 | Engine speed pulse (tacho) | tacho_out | ME221-C1-79 | TACHOMETER | 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 | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + 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 | ME221-C1-12 | LOW SIDE 2 | low_side_out | single_source | |
| OEM-E-8 | A/F sensor heater relay | low_side_out | ME221-C1-16 | LSU HEATER -VE | low_side_out | single_source | |
| OEM-E-9 | Ignition signal | 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 | ME221-C1-15 | 0.85 | no route | IGN +12V | — | |
| W4 | SP-14V-1 | ME221-C1-64 | 0.85 | no route | VBAT | — | |
| 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 | ME221-C1-10 | 0.85 | no route | GROUND CHASSIS | — | |
| W11 | SP-GND-1 | ME221-C1-61 | 0.85 | no route | GROUND | — | |
| W12 | SP-GND-1 | ME221-C1-89 | 0.85 | no route | GROUND | — | |
| W13 | SP-GND-1 | ME221-C1-90 | 0.85 | no route | GROUND | — | |
| W14 | OEM-A-24 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W15 | SP-0V-1 | ME221-C1-52 | 0.5 | no route | SENSORS GROUND | — | |
| W16 | SP-0V-1 | ME221-C1-84 | 0.5 | no route | Sensor Ground | — | |
| W17 | OEM-A-7 | ME221-C1-81 | 0.5 | no route | Crank position sensor (T1) | — | |
| W18 | OEM-A-6 | ME221-C1-22 | 0.5 | no route | Cam position sensor (T2) | — | |
| W19 | OEM-A-1 | ME221-C1-53 | 0.5 | no route | Knock sensor | — | |
| W20 | OEM-A-16 | ME221-C1-32 | 0.5 | no route | Ignition coil 1 | — | |
| W21 | OEM-A-15 | ME221-C1-31 | 0.5 | no route | Ignition coil 2 | — | |
| W22 | OEM-A-14 | ME221-C1-2 | 0.5 | no route | Ignition coil 3 | — | |
| W23 | OEM-A-13 | ME221-C1-1 | 0.5 | no route | Ignition coil 4 | — | |
| W24 | OEM-B-5 | ME221-C1-63 | 0.5 | no route | Injector 1 | — | |
| W25 | OEM-B-4 | ME221-C1-4 | 0.5 | no route | Injector 2 | — | |
| W26 | OEM-B-3 | ME221-C1-33 | 0.5 | no route | Injector 3 | — | |
| W27 | OEM-B-2 | ME221-C1-3 | 0.5 | no route | Injector 4 | — | |
| W28 | OEM-E-17 | ME221-C1-73 | 0.5 | no route | Fuel pump relay | — | |
| W29 | OEM-E-7 | ME221-C1-12 | 0.5 | no route | Main relay control | — | |
| W30 | OEM-B-6 | RLY1-R-OUT | 0.5 | no route | VTEC solenoid | — | |
| W31 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W32 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W33 | RLY1-R-COIL- | ME221-C1-74 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W34 | OEM-A-30 | ME221-C1-26 | 0.5 | no route | MAP sensor | — | |
| W35 | OEM-B-8 | ME221-C1-86 | 0.5 | no route | Coolant temp sensor | — | |
| W36 | OEM-E-12 | ME221-C1-69 | 0.5 | no route | Radiator fan control | — | |
| W37 | OEM-E-18 | ME221-C1-39 | 0.5 | no route | A/C clutch relay | — | |
| W38 | OEM-E-8 | ME221-C1-16 | 0.5 | no route | A/F sensor heater relay | — | |
| W39 | OEM-E-21 | ME221-C1-37 | 0.5 | no route | Secondary O2 heater | — | |
| W40 | OEM-A-10 | ME221-C1-42 | 0.5 | no route | A/F sensor heater | — | |
| W41 | OEM-B-15 | ME221-C1-72 | 0.5 | no route | Engine mount control solenoid | — | |
| W42 | OEM-B-18 | ME221-C1-43 | 0.5 | no route | Alternator control | — | |
| W43 | OEM-E-25 | ME221-C1-79 | 0.5 | no route | Engine speed pulse (tacho) | — | |
| W44 | OEM-E-20 | ME221-C1-18 | 0.5 | no route | Secondary O2 sensor | — | |
| W45 | OEM-E-1 | ME221-C1-57 | 0.5 | no route | Coolant temp sensor 2 | — | |
| W46 | OEM-A-18 | ME221-C1-6 | 0.5 | no route | Vehicle speed sensor | — | |
| W47 | OEM-B-11 | ME221-C1-7 | 0.5 | no route | VTEC oil pressure switch | — | |
| W48 | OEM-E-11 | ME221-C1-21 | 0.5 | no route | CAN H | — | |
| W49 | OEM-E-24 | ME221-C1-51 | 0.5 | no route | CAN L | — | |
| W50 | OEM-A-21 | SP-5V-1 | 0.5 | no route | Sensor voltage 1 | — | |
| W51 | SP-5V-1 | ME221-C1-46 | 0.5 | no route | 5V REF | — | |
| W52 | SP-5V-1 | TPS-J-VCC | 0.5 | no route | 5V supply in | — | |
| W53 | TPS-J-SIG | ME221-C1-17 | 0.5 | no route | Throttle position signal | — | |
| W54 | 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 (6)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | LOAD_UNKNOWN | ME221-C1-16 | ME221-C1-16 "LSU HEATER -VE" drives OEM-E-8 A/F sensor heater relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | RLY1-R-OUT | RLY1-R-OUT "Relay contact output (switched +12 V to load)" drives OEM-B-6 VTEC solenoid (load 1.0 A) but its current rating is unknown. Check the ECU manual. |
| 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 | 26 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-13 Alternator FR signal; OEM-B-17 Intake air temp sensor; OEM-B-19 Throttle actuator command to throttle control module (SEFD); OEM-B-20 Throttle actuator command to throttle control module (SEDF); OEM-B-21 Evap canister purge valve; OEM-D-1 Cruise set switch; OEM-D-15 Throttle actuator relay; OEM-D-4 Cruise main switch; OEM-D-7 Cruise resume switch; OEM-D-8 Brake pedal position switch; OEM-D-9 Cruise clutch signal; OEM-E-13 Multiplex communication; OEM-E-14 Fuel tank pressure sensor; OEM-E-15 Electrical load detector; OEM-E-16 Power steering load detector; OEM-E-19 Evap canister vent shut valve; OEM-E-22 Brake pedal switch; 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; OEM-E-9 Ignition 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 | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 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 | — | 2026-10-05 | ecc8006f849f |
| 4 | vendor_doc | Bosch relay catalogue (mini ISO relays) | https://www.bosch-ibusiness.com/media/downloads/kataloge/relay/2025_10_bosch_relay_catalogue.pdf | archive | 2026-10-05 | 20344cff1ef3 |
| 4 | community_copy | Honda S2000 Service Manual 2000–2008, Fuel and Emissions Systems | https://www.s2000.wiki/view/images/7/7f/Service_Manual_2000-2008.pdf | archive | 2026-10-05 | a470cfc928e9 |
| 4 | vendor_doc | Motorsport Electronics GEN2 ME221/ME360/ME442 wire-in pinout | https://motorsport-electronics.co.uk/onlinehelp/html/ME442ME360ME221GEN2Wire-InPinout.html | — | — | — |
| 4 | vendor_doc | Omron G8V-RH-1C7T-R-DC12 high-current micro 280 automotive relay datasheet | https://www.alldatasheet.com/datasheet-pdf/pdf/333797/OMRON/G8V-RH-1C7T-R-DC12.html | — | 2026-10-05 | 764a0505a941 |
| 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 | archive | 2026-10-05 | 643bc0efd6d7 |