AP2 2006–09 (F22C1, DBW) → Motorsport Electronics ME221 (auto)
AP2 2006–09 (F22C1, DBW) — Motorsport Electronics — ME221
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 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 | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 1: read the Findings page before cutting any wire |
| Size of the job | 62 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-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | TB-J-GND | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | ME221-C1-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | ME221-C1-84 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-5V1-1 | ME221-C1-46 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-21 | ME221-C1-76 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | TB-J-VCC | ME221-C1-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-7 | ME221-C1-80 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-6 | ME221-C1-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-1 | ME221-C1-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-16 | ME221-C1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-15 | ME221-C1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-14 | ME221-C1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-13 | ME221-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B-5 | ME221-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-4 | ME221-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-3 | ME221-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-2 | ME221-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | TB-J-M- | ME221-C1-68 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | TB-J-M+ | ME221-C1-67 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E-17 | ME221-C1-73 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E-7 | ME221-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-6 | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | RLY1-R-COIL- | ME221-C1-74 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-30 | ME221-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-25 | ME221-C1-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-26 | ME221-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B-8 | ME221-C1-86 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | TB-J-TPS1 | ME221-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-D-15 | ME221-C1-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E-12 | ME221-C1-69 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E-18 | ME221-C1-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E-8 | ME221-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E-21 | ME221-C1-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-10 | ME221-C1-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-B-15 | ME221-C1-72 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-B-18 | ME221-C1-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E-25 | ME221-C1-79 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E-1 | ME221-C1-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A-18 | ME221-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-B-11 | ME221-C1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E-11 | ME221-C1-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E-24 | ME221-C1-51 | 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-C1-76 | ME221-C1-52 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 5 | ME221-C1-10 | ME221-C1-45 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | ME221-C1-10 | ME221-C1-46 | open (OL) | power ground must not touch 5 V sensor reference | |
| 7 | ME221-C1-10 | ME221-C1-76 | open (OL) | power ground must not touch 5 V sensor reference | |
| 8 | ME221-C1-10 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 9 | ME221-C1-15 | ME221-C1-45 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 10 | ME221-C1-15 | ME221-C1-46 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 11 | ME221-C1-15 | ME221-C1-76 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 12 | ME221-C1-46 | RLY1-R-OUT | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 13 | ME221-C1-52 | ME221-C1-45 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 14 | ME221-C1-52 | RLY1-R-OUT | open (OL) | sensor ground must not touch +12 V supply | |
| 15 | ME221-C1-76 | RLY1-R-OUT | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 16 | RLY1-R-OUT | ME221-C1-45 | open (OL) | +12 V supply must not touch 5 V sensor reference |
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 | — | W31 | — | 0.5 | OEM-A-13 | — | — | — |
| 10 | GROUND CHASSIS | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | LOW SIDE 2 | — | W39 | — | 0.5 | OEM-E-7 | — | — | — |
| 14 | LSU +12V | — | — | — | — | — | — | — | — |
| 15 | IGN +12V | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 16 | LSU HEATER -VE | — | W52 | — | 0.5 | OEM-E-8 | — | — | — |
| 17 | ANA VOLT 3 | — | W46 | — | 0.5 | OEM-A-26 | — | — | — |
| 18 | ANA VOLT 4 | — | W48 | — | 0.5 | TB-J-TPS1 | — | — | — |
| 19 | LSU UN | — | — | — | — | — | — | — | — |
| 2 | COIL 3 | — | W30 | — | 0.5 | OEM-A-14 | — | — | — |
| 20 | LSU VM | — | — | — | — | — | — | — | — |
| 21 | CAN 1 HIGH | — | W61 | — | 0.5 | OEM-E-11 | — | — | — |
| 22 | CAM A VR+ | — | W26 | — | 0.5 | OEM-A-6 | — | — | — |
| 23 | CAM A VR- | — | — | — | — | — | — | — | — |
| 24 | SERIAL 1 GROUND | — | — | — | — | — | — | — | — |
| 25 | SERIAL 1 TX | — | — | — | — | — | — | — | — |
| 26 | ANA VOLT 1 | — | W44 | — | 0.5 | OEM-A-30 | — | — | — |
| 3 | INJECTOR 4 | — | W35 | — | 0.5 | OEM-B-2 | — | — | — |
| 31 | COIL 2 | — | W29 | — | 0.5 | OEM-A-15 | — | — | — |
| 32 | COIL 1 | — | W28 | — | 0.5 | OEM-A-16 | — | — | — |
| 33 | INJECTOR 3 | — | W34 | — | 0.5 | OEM-B-3 | — | — | — |
| 35 | USB D+ | — | — | — | — | — | — | — | — |
| 36 | USB D- | — | — | — | — | — | — | — | — |
| 37 | LOW SIDE RELAY 11 | — | W53 | — | 0.5 | OEM-E-21 | — | — | — |
| 38 | USB VBUS | — | — | — | — | — | — | — | — |
| 39 | LOW SIDE 6 | — | W51 | — | 0.5 | OEM-E-18 | — | — | — |
| 4 | INJECTOR 2 | — | W33 | — | 0.5 | OEM-B-4 | — | — | — |
| 41 | USB GROUND | — | — | — | — | — | — | — | — |
| 42 | LOW SIDE RELAY 12 | — | W54 | — | 0.5 | OEM-A-10 | — | — | — |
| 43 | LOW SIDE RELAY 14 | — | W56 | — | 0.5 | OEM-B-18 | — | — | — |
| 44 | LOW SIDE 4 | — | W49 | — | 0.5 | OEM-D-15 | — | — | — |
| 45 | 5V REF | — | W24 | — | 0.5 | TB-J-VCC | — | — | — |
| 46 | 5V REF | — | W22 | — | 0.5 | SP-5V1-1 | — | — | — |
| 49 | LSU IA | — | — | — | — | — | — | — | — |
| 50 | LSU IP | — | — | — | — | — | — | — | — |
| 51 | CAN 1 LOW | — | W62 | — | 0.5 | OEM-E-24 | — | — | — |
| 52 | SENSORS GROUND | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | KNOCK 1 SIGNAL | — | W27 | — | 0.5 | OEM-A-1 | — | — | — |
| 55 | SERIAL 1 RX | — | — | — | — | — | — | — | — |
| 56 | ANA VOLT 2 | — | W45 | — | 0.5 | OEM-A-25 | — | — | — |
| 57 | ANA TEMP 2 | — | W58 | — | 0.5 | OEM-E-1 | — | — | — |
| 6 | DIG_IN 1 | — | W59 | — | 0.5 | OEM-A-18 | — | — | — |
| 61 | GROUND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 63 | INJECTOR 1 | — | W32 | — | 0.5 | OEM-B-5 | — | — | — |
| 64 | VBAT | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 67 | Stepper 1 / A1 | — | W37 | — | 0.5 | TB-J-M+ | — | — | — |
| 68 | Stepper 2 / A2 | — | W36 | — | 0.5 | TB-J-M- | — | — | — |
| 69 | LOW SIDE 5 | — | W50 | — | 0.5 | OEM-E-12 | — | — | — |
| 7 | DIG_IN 2 | — | W60 | — | 0.5 | OEM-B-11 | — | — | — |
| 70 | Stepper 3 / B1 | — | — | — | — | — | — | — | — |
| 71 | Stepper 4 / B2 | — | — | — | — | — | — | — | — |
| 72 | LOW SIDE RELAY 13 | — | W55 | — | 0.5 | OEM-B-15 | — | — | — |
| 73 | LOW SIDE 1 | — | W38 | — | 0.5 | OEM-E-17 | — | — | — |
| 74 | LOW SIDE 3 | — | W43 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| 76 | 5V REF | — | W23 | — | 0.5 | OEM-A-21 | — | — | — |
| 79 | TACHOMETER | — | W57 | — | 0.5 | OEM-E-25 | — | — | — |
| 80 | CRANK VR+ | — | W25 | — | 0.5 | OEM-A-7 | — | — | — |
| 81 | CRANK VR- | — | — | — | — | — | — | — | — |
| 84 | Sensor Ground | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 86 | ANA TEMP 1 | — | W47 | — | 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 | — | W27 | — | 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) | — | W26 | — | 0.5 | ME221-C1-22 | — | — | — |
| 7 | Crank position sensor (T1) | — | W25 | — | 0.5 | ME221-C1-80 | — | — | — |
| 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 | — | W54 | — | 0.5 | ME221-C1-42 | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 | — | W31 | — | 0.5 | ME221-C1-1 | — | — | — |
| 14 | Ignition coil 3 | — | W30 | — | 0.5 | ME221-C1-2 | — | — | — |
| 15 | Ignition coil 2 | — | W29 | — | 0.5 | ME221-C1-31 | — | — | — |
| 16 | Ignition coil 1 | — | W28 | — | 0.5 | ME221-C1-32 | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor | — | W59 | — | 0.5 | ME221-C1-6 | — | — | — |
| 19 | Unused cavity | — | — | — | — | — | — | — | — |
| 20 | Sensor voltage 2 | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor voltage 1 | — | W23 | — | 0.5 | ME221-C1-76 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Sensor ground 2 | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Sensor ground 1 | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 25 | Accelerator pedal position B | — | W45 | — | 0.5 | ME221-C1-56 | — | — | — |
| 26 | Accelerator pedal position A | — | W46 | — | 0.5 | ME221-C1-17 | — | — | — |
| 27 | Unused cavity | — | — | — | — | — | — | — | — |
| 28 | A/F sensor signal − | — | — | — | — | — | — | — | — |
| 29 | Unused cavity | — | — | — | — | — | — | — | — |
| 30 | MAP sensor | — | W44 | — | 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 | — | W35 | — | 0.5 | ME221-C1-3 | — | — | — |
| 3 | Injector 3 | — | W34 | — | 0.5 | ME221-C1-33 | — | — | — |
| 4 | Injector 2 | — | W33 | — | 0.5 | ME221-C1-4 | — | — | — |
| 5 | Injector 1 | — | W32 | — | 0.5 | ME221-C1-63 | — | — | — |
| 6 | VTEC solenoid | — | W40 | — | 0.5 | RLY1-R-OUT | — | — | — |
| 7 | Unused cavity | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor | — | W47 | — | 0.5 | ME221-C1-86 | — | — | — |
| 9 | Unused cavity | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal | — | — | — | — | — | — | — | — |
| 11 | VTEC oil pressure switch | — | W60 | — | 0.5 | ME221-C1-7 | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal | — | — | — | — | — | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Engine mount control solenoid | — | W55 | — | 0.5 | ME221-C1-72 | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor | — | — | — | — | — | — | — | — |
| 18 | Alternator control | — | W56 | — | 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 | — | W49 | — | 0.5 | ME221-C1-44 | — | — | — |
| 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 | — | W58 | — | 0.5 | ME221-C1-57 | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Logic ground 3 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor voltage 3 | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Main relay control | — | W39 | — | 0.5 | ME221-C1-12 | — | — | — |
| 8 | A/F sensor heater relay | — | W52 | — | 0.5 | ME221-C1-16 | — | — | — |
| 9 | Ignition signal | — | — | — | — | — | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | CAN H | — | W61 | — | 0.5 | ME221-C1-21 | — | — | — |
| 12 | Radiator fan control | — | W50 | — | 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 | — | W38 | — | 0.5 | ME221-C1-73 | — | — | — |
| 18 | A/C clutch relay | — | W51 | — | 0.5 | ME221-C1-39 | — | — | — |
| 19 | Evap canister vent shut valve | — | — | — | — | — | — | — | — |
| 20 | Secondary O2 sensor | — | — | — | — | — | — | — | — |
| 21 | Secondary O2 heater | — | W53 | — | 0.5 | ME221-C1-37 | — | — | — |
| 22 | Brake pedal switch | — | — | — | — | — | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | W62 | — | 0.5 | ME221-C1-51 | — | — | — |
| 25 | Engine speed pulse (tacho) | — | W57 | — | 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) | — | W42 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W43 | — | 0.5 | ME221-C1-74 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W41 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W40 | — | 0.5 | OEM-B-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W14 | — | 0.5 | OEM-A-23 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | TB-J-GND | — | — | — |
| 1 | — | — | W18 | — | 0.5 | ME221-C1-52 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | ME221-C1-84 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | ME221-C1-15 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | ME221-C1-64 | — | — | — |
| 1 | — | — | W41 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W42 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W20 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-E-5 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | ME221-C1-46 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | W12 | — | 0.85 | ME221-C1-89 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | ME221-C1-90 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | ME221-C1-61 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-5 | — | — | — |
TB-J
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| TPS1 | Throttle position 1 | — | W48 | — | 0.5 | ME221-C1-18 | — | — | — |
| VCC | Throttle sensor 5V supply | — | W24 | — | 0.5 | ME221-C1-45 | — | — | — |
| TPS2 | Throttle position 2 | — | — | — | — | — | — | — | — |
| GND | Throttle sensor ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| M- | Throttle motor − | — | W36 | — | 0.5 | ME221-C1-68 | — | — | — |
| M+ | Throttle motor + | — | W37 | — | 0.5 | ME221-C1-67 | — | — | — |
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 | ME221-C1-46 | 5V REF | vref | corroborated | |
| OEM-A-21 | Sensor voltage 1 | vref | ME221-C1-76 | 5V REF | vref | single_source | |
| OEM-A-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-23 | Sensor ground 2 | sensor_ground | ME221-C1-52 + ME221-C1-84 + TB-J-GND | SENSORS GROUND + Sensor Ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-A-24 | Sensor ground 1 | sensor_ground | ME221-C1-52 + ME221-C1-84 + TB-J-GND | SENSORS GROUND + Sensor Ground + Throttle sensor ground | sensor_ground | single_source | |
| OEM-A-25 | Accelerator pedal position B | analog_in | ME221-C1-56 | ANA VOLT 2 | analog_in | corroborated | |
| OEM-A-26 | Accelerator pedal position A | analog_in | ME221-C1-17 | ANA VOLT 3 | 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-C1-80 | 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 | ME221-C1-44 | LOW SIDE 4 | 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 | — | — | — | 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 | ME221-C1-52 + ME221-C1-84 + TB-J-GND | SENSORS GROUND + Sensor Ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-E-5 | Sensor voltage 3 | vref | ME221-C1-46 | 5V REF | 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-23 | SP-0V-1 | 0.5 | no route | Sensor ground 2 | — | |
| W15 | OEM-A-24 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W16 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 | — | |
| W17 | TB-J-GND | SP-0V-1 | 0.5 | no route | Throttle sensor ground | — | |
| W18 | SP-0V-1 | ME221-C1-52 | 0.5 | no route | SENSORS GROUND | — | |
| W19 | SP-0V-1 | ME221-C1-84 | 0.5 | no route | Sensor Ground | — | |
| W20 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor voltage 2 | — | |
| W21 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor voltage 3 | — | |
| W22 | SP-5V1-1 | ME221-C1-46 | 0.5 | no route | 5V REF | — | |
| W23 | OEM-A-21 | ME221-C1-76 | 0.5 | no route | Sensor voltage 1 | — | |
| W24 | TB-J-VCC | ME221-C1-45 | 0.5 | no route | Throttle sensor 5V supply | — | |
| W25 | OEM-A-7 | ME221-C1-80 | 0.5 | no route | Crank position sensor (T1) | — | |
| W26 | OEM-A-6 | ME221-C1-22 | 0.5 | no route | Cam position sensor (T2) | — | |
| W27 | OEM-A-1 | ME221-C1-53 | 0.5 | no route | Knock sensor | — | |
| W28 | OEM-A-16 | ME221-C1-32 | 0.5 | no route | Ignition coil 1 | — | |
| W29 | OEM-A-15 | ME221-C1-31 | 0.5 | no route | Ignition coil 2 | — | |
| W30 | OEM-A-14 | ME221-C1-2 | 0.5 | no route | Ignition coil 3 | — | |
| W31 | OEM-A-13 | ME221-C1-1 | 0.5 | no route | Ignition coil 4 | — | |
| W32 | OEM-B-5 | ME221-C1-63 | 0.5 | no route | Injector 1 | — | |
| W33 | OEM-B-4 | ME221-C1-4 | 0.5 | no route | Injector 2 | — | |
| W34 | OEM-B-3 | ME221-C1-33 | 0.5 | no route | Injector 3 | — | |
| W35 | OEM-B-2 | ME221-C1-3 | 0.5 | no route | Injector 4 | — | |
| W36 | TB-J-M- | ME221-C1-68 | 0.5 | no route | Throttle motor − | — | |
| W37 | TB-J-M+ | ME221-C1-67 | 0.5 | no route | Throttle motor + | — | |
| W38 | OEM-E-17 | ME221-C1-73 | 0.5 | no route | Fuel pump relay | — | |
| W39 | OEM-E-7 | ME221-C1-12 | 0.5 | no route | Main relay control | — | |
| W40 | OEM-B-6 | RLY1-R-OUT | 0.5 | no route | VTEC solenoid | — | |
| W41 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W42 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W43 | RLY1-R-COIL- | ME221-C1-74 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W44 | OEM-A-30 | ME221-C1-26 | 0.5 | no route | MAP sensor | — | |
| W45 | OEM-A-25 | ME221-C1-56 | 0.5 | no route | Accelerator pedal position B | — | |
| W46 | OEM-A-26 | ME221-C1-17 | 0.5 | no route | Accelerator pedal position A | — | |
| W47 | OEM-B-8 | ME221-C1-86 | 0.5 | no route | Coolant temp sensor | — | |
| W48 | TB-J-TPS1 | ME221-C1-18 | 0.5 | no route | Throttle position 1 | — | |
| W49 | OEM-D-15 | ME221-C1-44 | 0.5 | no route | Throttle actuator relay | — | |
| W50 | OEM-E-12 | ME221-C1-69 | 0.5 | no route | Radiator fan control | — | |
| W51 | OEM-E-18 | ME221-C1-39 | 0.5 | no route | A/C clutch relay | — | |
| W52 | OEM-E-8 | ME221-C1-16 | 0.5 | no route | A/F sensor heater relay | — | |
| W53 | OEM-E-21 | ME221-C1-37 | 0.5 | no route | Secondary O2 heater | — | |
| W54 | OEM-A-10 | ME221-C1-42 | 0.5 | no route | A/F sensor heater | — | |
| W55 | OEM-B-15 | ME221-C1-72 | 0.5 | no route | Engine mount control solenoid | — | |
| W56 | OEM-B-18 | ME221-C1-43 | 0.5 | no route | Alternator control | — | |
| W57 | OEM-E-25 | ME221-C1-79 | 0.5 | no route | Engine speed pulse (tacho) | — | |
| W58 | OEM-E-1 | ME221-C1-57 | 0.5 | no route | Coolant temp sensor 2 | — | |
| W59 | OEM-A-18 | ME221-C1-6 | 0.5 | no route | Vehicle speed sensor | — | |
| W60 | OEM-B-11 | ME221-C1-7 | 0.5 | no route | VTEC oil pressure switch | — | |
| W61 | OEM-E-11 | ME221-C1-21 | 0.5 | no route | CAN H | — | |
| W62 | OEM-E-24 | ME221-C1-51 | 0.5 | no route | CAN L | — |
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 | S2K-0609-TB | Honda | 2006–09 S2000 throttle body plug, 6-way (pin numbers from Link forum dealer post; housing P/N unknown) | 1.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| dbw_motor | TB | Throttle motor + | — | ME221-C1-67 | Stepper 1 / A1 | hbridge | — |
| dbw_motor | TB | Throttle motor − | — | ME221-C1-68 | Stepper 2 / A2 | hbridge | — |
| dbw_tps | TB | Throttle position 1 | 0_5v | ME221-C1-18 | ANA VOLT 4 | analog_0_5 | — |
| dbw_tps | TB | Throttle position 2 | 0_5v | — | — | — | — |
Findings
Open (6)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | TB-J-TPS2 | TB-J-TPS2 "Throttle position 2" is required but not wired. |
| warn | DBW_SHARED_5V | ME221-C1-46 + OEM-A-20 + OEM-E-5 + SP-5V1-1 | These 5 V supplies are separate in the stock car (OEM-A-20 [s2k_vcc2], OEM-E-5 [s2k_vcc3]) and here share one ECU 5 V (ME221-C1-46). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. ME221 has 3 5 V sensor supply pin(s). All are in use, so decide: accept the shared supply (and rely on the ECU's DBW fault checks), or add a separate regulated 5 V for the sub tracks. |
| 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. |
| warn | SUPPLY_GROUP | ME221-C1-46 + OEM-A-20 + OEM-E-5 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-A-20 [s2k_vcc2], OEM-E-5 [s2k_vcc3]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all. |
| 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-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-20 Secondary O2 sensor; 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 (0)
| Code | Subject | Reason | By |
|---|
Notes
Fit check: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - Trigger pattern needs a workaround: derived: ME sells an S2000 plug-in ('Honda S2000 (AP1) 00-05') and an ME360 F20C harness. The 2004-05 AP2 F22C1 uses the same 12-tooth crank + two 3-tooth cam trigger as the F20C, so it falls inside ME's documented S2000 support. Derived... Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - TB-J TPS2: Throttle position 2: no free analog_0_5 on Motorsport Electronics ME221 Not wired: - OEM-E 9: Ignition signal: key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); Motorsport Electronics ME221 has no dedicated key-on input - OEM-B 21: Evap canister purge valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E 19: Evap canister vent shut valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E 26: Vehicle speed output: no free frequency_out/tacho/low_side/ls_hs on Motorsport Electronics ME221 - OEM-E 20: Secondary O2 sensor: no free o2_narrowband/analog_0_5 on Motorsport Electronics ME221 - OEM-B 17: Intake air temp sensor: no free thermistor/analog_0_5 on Motorsport Electronics ME221 - OEM-B 13: Alternator FR signal: no free analog_0_5 on Motorsport Electronics ME221 - OEM-E 14: Fuel tank pressure sensor: no free analog_0_5 on Motorsport Electronics ME221 - OEM-E 15: Electrical load detector: no free analog_0_5 on Motorsport Electronics ME221 - OEM-E 16: Power steering load detector: no free analog_0_5 on Motorsport Electronics ME221 - OEM-D 1: Cruise set switch: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-D 4: Cruise main switch: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-D 7: Cruise resume switch: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-D 8: Brake pedal position switch: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-D 9: Cruise clutch signal: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-E 22: Brake pedal switch: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-E 28: A/C switch signal: no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-E 13: Multiplex communication: no free k_line on Motorsport Electronics ME221 - OEM-A 28: A/F sensor signal −: not classified in the library; wire by hand - OEM-A 31: A/F sensor signal +: not classified in the library; wire by hand - OEM-B 10: Alternator L signal: not classified in the library; wire by hand - OEM-B 19: Throttle actuator command to throttle control module (SEFD): not classified in the library; wire by hand - OEM-B 20: Throttle actuator command to throttle control module (SEDF): not classified in the library; wire by hand - OEM-E 27: Immobilizer code: not classified in the library; wire by hand - OEM-E 29: Service check signal: not classified in the library; wire by hand - OEM-E 30: Write enable signal: not classified in the library; wire by hand
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 |
| 2 | forum | Link forum: dbw wiring (07/08 S2000, ViPEC V88) | https://forums.linkecu.com/topic/313-dbw-wiring/ | — | 2026-10-05 | b788a1b47b9e |