AP1 2000–03 (F20C) → MaxxECU MaxxECU MINI REV10+ (auto)
AP1 2000–03 (F20C) — MaxxECU — MaxxECU MINI
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08
Before you start
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 3: read the Findings page before cutting any wire |
| Size of the job | 40 wires · 9 connectors · 4 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-B-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-B-9 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | MAXXECUMINI-C1-H4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-B-10 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-B-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-B-20 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-B-22 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | MAXXECUMINI-C1-G4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-C-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-C-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-C-31 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-C-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | MAXXECUMINI-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | MAXXECUMINI-C1-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | MAXXECUMINI-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MAXXECUMINI-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-C-28 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-5V1-1 | MAXXECUMINI-C1-E2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-C-8 | MAXXECUMINI-C1-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-C-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C-4 | MAXXECUMINI-C1-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-C-12 | MAXXECUMINI-C1-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-C-13 | MAXXECUMINI-C1-F3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-C-14 | MAXXECUMINI-C1-F4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B-11 | MAXXECUMINI-C1-G3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-3 | MAXXECUMINI-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-4 | MAXXECUMINI-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-5 | MAXXECUMINI-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-15 | MAXXECUMINI-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-16 | MAXXECUMINI-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-17 | MAXXECUMINI-C1-E1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-20 | MAXXECUMINI-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-C-17 | MAXXECUMINI-C1-C3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-C-27 | MAXXECUMINI-C1-D2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-23 | MAXXECUMINI-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-C-26 | MAXXECUMINI-C1-C1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-C-25 | MAXXECUMINI-C1-C2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-9 | MAXXECUMINI-C1-B1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-C-5 | MAXXECUMINI-C1-B2 | 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 | MAXXECUMINI-C1-H4 | MAXXECUMINI-C1-A2 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MAXXECUMINI-C1-H4 | MAXXECUMINI-C1-G4 | open (OL) | +12 V supply must not touch power ground | |
| 3 | MAXXECUMINI-C1-A2 | MAXXECUMINI-C1-E2 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MAXXECUMINI-C1-G4 | MAXXECUMINI-C1-E2 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | MAXXECUMINI-C1-H4 | MAXXECUMINI-C1-E2 | open (OL) | +12 V supply must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECUMINI-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | TRIGGER | — | W20 | — | 0.5 | OEM-C-8 | — | — | — |
| A2 | TRIGGER GND | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| B1 | DIN 1 (Hall only) | — | W39 | — | 0.5 | OEM-A-9 | — | — | — |
| B2 | DIN 2 (Hall only) | — | W40 | — | 0.5 | OEM-C-5 | — | — | — |
| B3 | SENSOR GND | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| B4 | SENSOR GND | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| C1 | CLT | — | W37 | — | 0.5 | OEM-C-26 | — | — | — |
| C2 | IAT | — | W38 | — | 0.5 | OEM-C-25 | — | — | — |
| C3 | AIN 3 (0-5V) | — | W34 | — | 0.5 | OEM-C-17 | — | — | — |
| C4 | AIN 4 (0-5V) | — | W36 | — | 0.5 | OEM-A-23 | — | — | — |
| D1 | GPO 8/TACHO | — | W33 | — | 0.5 | OEM-A-20 | — | — | — |
| D2 | TPS | — | W35 | — | 0.5 | OEM-C-27 | — | — | — |
| D3 | GND Shield | — | — | — | — | — | — | — | — |
| D4 | SENSOR GND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| E1 | GPO 3 | — | W32 | — | 0.5 | OEM-A-17 | — | — | — |
| E2 | +5V sensor supply | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| E3 | CAN L | — | — | — | — | — | — | — | — |
| E4 | CAN H | — | — | — | — | — | — | — | — |
| F1 | IGN 1 | — | W22 | — | 0.5 | OEM-C-4 | — | — | — |
| F2 | IGN 2 | — | W23 | — | 0.5 | OEM-C-12 | — | — | — |
| F3 | IGN 3 | — | W24 | — | 0.5 | OEM-C-13 | — | — | — |
| F4 | IGN 4 | — | W25 | — | 0.5 | OEM-C-14 | — | — | — |
| G1 | GPO 2 | — | W31 | — | 0.5 | OEM-A-16 | — | — | — |
| G2 | GPO 1 | — | W30 | — | 0.5 | OEM-A-15 | — | — | — |
| G3 | INJ 1 | — | W26 | — | 0.5 | OEM-B-11 | — | — | — |
| G4 | ENGINE GND | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| H1 | INJ 2 | — | W27 | — | 0.5 | OEM-B-3 | — | — | — |
| H2 | INJ 3 | — | W28 | — | 0.5 | OEM-B-4 | — | — | — |
| H3 | INJ 4 | — | W29 | — | 0.5 | OEM-B-5 | — | — | — |
| H4 | +12V (ECU power supply) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coolant temp gauge drive | — | — | — | — | — | — | — | — |
| 2 | Air control valve solenoid | — | — | — | — | — | — | — | — |
| 3 | Evap bypass solenoid | — | — | — | — | — | — | — | — |
| 4 | Evap canister vent shut valve | — | — | — | — | — | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | Evap canister purge valve | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Vehicle speed sensor | — | W39 | — | 0.5 | MAXXECUMINI-C1-B1 | — | — | — |
| 10 | Service check signal | — | — | — | — | — | — | — | — |
| 11 | NC | — | — | — | — | — | — | — | — |
| 12 | Immobilizer indicator light | — | — | — | — | — | — | — | — |
| 13 | Immobilizer enable signal | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | Fuel pump relay (USDM) | — | W30 | — | 0.5 | MAXXECUMINI-C1-G2 | — | — | — |
| 16 | Fuel pump relay (JDM) | — | W31 | — | 0.5 | MAXXECUMINI-C1-G1 | — | — | — |
| 17 | A/C clutch relay | — | W32 | — | 0.5 | MAXXECUMINI-C1-E1 | — | — | — |
| 18 | Check engine light (MIL) | — | — | — | — | — | — | — | — |
| 19 | Tacho output | — | — | — | — | — | — | — | — |
| 20 | Radiator fan relay | — | W33 | — | 0.5 | MAXXECUMINI-C1-D1 | — | — | — |
| 21 | K-Line | — | — | — | — | — | — | — | — |
| 22 | NC | — | — | — | — | — | — | — | — |
| 23 | Secondary O2 sensor | — | W36 | — | 0.5 | MAXXECUMINI-C1-C4 | — | — | — |
| 24 | Starter switch signal | — | — | — | — | — | — | — | — |
| 25 | Immobilizer code | — | — | — | — | — | — | — | — |
| 26 | Power steering load detect | — | — | — | — | — | — | — | — |
| 27 | A/C switch (request) | — | — | — | — | — | — | — | — |
| 28 | Air pump relay | — | — | — | — | — | — | — | — |
| 29 | Fuel tank pressure sensor | — | — | — | — | — | — | — | — |
| 30 | Electrical load detector | — | — | — | — | — | — | — | — |
| 31 | NC | — | — | — | — | — | — | — | — |
| 32 | Brake switch | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Power source 1 (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Power ground 1 | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Injector 2 | — | W27 | — | 0.5 | MAXXECUMINI-C1-H1 | — | — | — |
| 4 | Injector 3 | — | W28 | — | 0.5 | MAXXECUMINI-C1-H2 | — | — | — |
| 5 | Injector 4 | — | W29 | — | 0.5 | MAXXECUMINI-C1-H3 | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Power source 2 (main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 10 | Power ground 2 | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Injector 1 | — | W26 | — | 0.5 | MAXXECUMINI-C1-G3 | — | — | — |
| 12 | VTEC solenoid | — | — | — | — | — | — | — | — |
| 13 | NC | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | NC | — | — | — | — | — | — | — | — |
| 17 | NC | — | — | — | — | — | — | — | — |
| 18 | NC | — | — | — | — | — | — | — | — |
| 19 | NC | — | — | — | — | — | — | — | — |
| 20 | Ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Backup power (battery constant) | — | — | — | — | — | — | — | — |
| 22 | Ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 23 | Idle air control valve | — | — | — | — | — | — | — | — |
| 24 | NC | — | — | — | — | — | — | — | — |
| 25 | NC | — | — | — | — | — | — | — | — |
OEM-C
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Primary O2 heater | — | — | — | — | — | — | — | — |
| 2 | Alternator control | — | — | — | — | — | — | — | — |
| 3 | Knock sensor | — | — | — | — | — | — | — | — |
| 4 | Ignition coil 1 | — | W22 | — | 0.5 | MAXXECUMINI-C1-F1 | — | — | — |
| 5 | Alternator FR signal | — | W40 | — | 0.5 | MAXXECUMINI-C1-B2 | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | Sensor ground 1 | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | Crank sensor + (CKP+) | — | W20 | — | 0.5 | MAXXECUMINI-C1-A1 | — | — | — |
| 9 | Crank sensor − (CKP−) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 10 | VTEC pressure switch | — | — | — | — | — | — | — | — |
| 11 | Secondary O2 heater control | — | — | — | — | — | — | — | — |
| 12 | Ignition coil 2 | — | W23 | — | 0.5 | MAXXECUMINI-C1-F2 | — | — | — |
| 13 | Ignition coil 3 | — | W24 | — | 0.5 | MAXXECUMINI-C1-F3 | — | — | — |
| 14 | Ignition coil 4 | — | W25 | — | 0.5 | MAXXECUMINI-C1-F4 | — | — | — |
| 15 | Secondary O2 sensor | — | — | — | — | — | — | — | — |
| 16 | Primary O2 sensor | — | — | — | — | — | — | — | — |
| 17 | MAP sensor | — | W34 | — | 0.5 | MAXXECUMINI-C1-C3 | — | — | — |
| 18 | Sensor ground 2 | — | W9 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor 5V supply 1 (MAP) | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | Cam (TDC1) sensor + | — | — | — | — | — | — | — | — |
| 21 | Cam (TDC1) sensor − | — | — | — | — | — | — | — | — |
| 22 | Knock sensor | — | — | — | — | — | — | — | — |
| 23 | NC | — | — | — | — | — | — | — | — |
| 24 | Air pump electric current sensor | — | — | — | — | — | — | — | — |
| 25 | Intake air temp sensor | — | W38 | — | 0.5 | MAXXECUMINI-C1-C2 | — | — | — |
| 26 | Coolant temp sensor | — | W37 | — | 0.5 | MAXXECUMINI-C1-C1 | — | — | — |
| 27 | Throttle position sensor | — | W35 | — | 0.5 | MAXXECUMINI-C1-D2 | — | — | — |
| 28 | Sensor 5V supply 2 | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 29 | Cam (TDC2) sensor + | — | — | — | — | — | — | — | — |
| 30 | Cam (TDC2) sensor − | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Timing ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | NC | — | — | — | — | — | — | — | — |
| 2 | NC | — | — | — | — | — | — | — | — |
| 3 | NC | — | — | — | — | — | — | — | — |
| 4 | NC | — | — | — | — | — | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | NC | — | — | — | — | — | — | — | — |
| 10 | NC | — | — | — | — | — | — | — | — |
| 11 | NC | — | — | — | — | — | — | — | — |
| 12 | NC | — | — | — | — | — | — | — | — |
| 13 | NC | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | NC | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W12 | — | 0.5 | OEM-C-7 | — | — | — |
| 1 | — | — | W9 | — | 0.5 | OEM-C-18 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | OEM-C-30 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-C-31 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | MAXXECUMINI-C1-A2 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | MAXXECUMINI-C1-B3 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | MAXXECUMINI-C1-B4 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MAXXECUMINI-C1-D4 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-C-9 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-B-1 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-B-9 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | MAXXECUMINI-C1-H4 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-C-19 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-C-28 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | MAXXECUMINI-C1-E2 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-B-10 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-B-2 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-B-20 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-B-22 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | MAXXECUMINI-C1-G4 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Coolant temp gauge drive | low_side_out | — | — | — | corroborated | |
| OEM-A-10 | Service check signal | — | — | — | — | single_source | |
| OEM-A-11 | NC | — | — | — | — | unverified | |
| OEM-A-12 | Immobilizer indicator light | low_side_out | — | — | — | single_source | |
| OEM-A-13 | Immobilizer enable signal | — | — | — | — | single_source | |
| OEM-A-14 | NC | — | — | — | — | unverified | |
| OEM-A-15 | Fuel pump relay (USDM) | low_side_out | MAXXECUMINI-C1-G2 | GPO 1 | low_side_out | corroborated | |
| OEM-A-16 | Fuel pump relay (JDM) | low_side_out | MAXXECUMINI-C1-G1 | GPO 2 | low_side_out | single_source | |
| OEM-A-17 | A/C clutch relay | low_side_out | MAXXECUMINI-C1-E1 | GPO 3 | low_side_out | corroborated | |
| OEM-A-18 | Check engine light (MIL) | low_side_out | — | — | — | corroborated | |
| OEM-A-19 | Tacho output | tacho_out | — | — | — | corroborated | |
| OEM-A-2 | Air control valve solenoid | low_side_out | — | — | — | single_source | |
| OEM-A-20 | Radiator fan relay | low_side_out | MAXXECUMINI-C1-D1 | GPO 8/TACHO | low_side_out | corroborated | |
| OEM-A-21 | K-Line | serial | — | — | — | single_source | |
| OEM-A-22 | NC | — | — | — | — | unverified | |
| OEM-A-23 | Secondary O2 sensor | lambda_nb_in | MAXXECUMINI-C1-C4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-A-24 | Starter switch signal | digital_in | — | — | — | corroborated | |
| OEM-A-25 | Immobilizer code | — | — | — | — | single_source | |
| OEM-A-26 | Power steering load detect | digital_in | — | — | — | corroborated | |
| OEM-A-27 | A/C switch (request) | digital_in | — | — | — | corroborated | |
| OEM-A-28 | Air pump relay | low_side_out | — | — | — | corroborated | |
| OEM-A-29 | Fuel tank pressure sensor | analog_in | — | — | — | corroborated | |
| OEM-A-3 | Evap bypass solenoid | low_side_out | — | — | — | single_source | |
| OEM-A-30 | Electrical load detector | analog_in | — | — | — | corroborated | |
| OEM-A-31 | NC | — | — | — | — | unverified | |
| OEM-A-32 | Brake switch | digital_in | — | — | — | corroborated | |
| OEM-A-4 | Evap canister vent shut valve | low_side_out | — | — | — | single_source | |
| OEM-A-5 | NC | — | — | — | — | unverified | |
| OEM-A-6 | Evap canister purge valve | low_side_out | — | — | — | single_source | |
| OEM-A-7 | NC | — | — | — | — | unverified | |
| OEM-A-8 | NC | — | — | — | — | unverified | |
| OEM-A-9 | Vehicle speed sensor | digital_in | MAXXECUMINI-C1-B1 | DIN 1 (Hall only) | digital_in | corroborated | |
| OEM-B-1 | Power source 1 (main relay) | power_in | MAXXECUMINI-C1-H4 | +12V (ECU power supply) | power_in | corroborated | |
| OEM-B-10 | Power ground 2 | ground | MAXXECUMINI-C1-G4 | ENGINE GND | ground | single_source | |
| OEM-B-11 | Injector 1 | injector_out | MAXXECUMINI-C1-G3 | INJ 1 | injector_out | corroborated | |
| OEM-B-12 | VTEC solenoid | high_side_out | — | — | — | corroborated | |
| OEM-B-13 | NC | — | — | — | — | unverified | |
| OEM-B-14 | NC | — | — | — | — | unverified | |
| OEM-B-15 | NC | — | — | — | — | unverified | |
| OEM-B-16 | NC | — | — | — | — | unverified | |
| OEM-B-17 | NC | — | — | — | — | unverified | |
| OEM-B-18 | NC | — | — | — | — | unverified | |
| OEM-B-19 | NC | — | — | — | — | unverified | |
| OEM-B-2 | Power ground 1 | ground | MAXXECUMINI-C1-G4 | ENGINE GND | ground | corroborated | |
| OEM-B-20 | Ground | ground | MAXXECUMINI-C1-G4 | ENGINE GND | ground | single_source | |
| OEM-B-21 | Backup power (battery constant) | power_in | — | — | — | single_source | |
| OEM-B-22 | Ground | ground | MAXXECUMINI-C1-G4 | ENGINE GND | ground | single_source | |
| OEM-B-23 | Idle air control valve | low_side_out | — | — | — | corroborated | |
| OEM-B-24 | NC | — | — | — | — | unverified | |
| OEM-B-25 | NC | — | — | — | — | unverified | |
| OEM-B-3 | Injector 2 | injector_out | MAXXECUMINI-C1-H1 | INJ 2 | injector_out | corroborated | |
| OEM-B-4 | Injector 3 | injector_out | MAXXECUMINI-C1-H2 | INJ 3 | injector_out | corroborated | |
| OEM-B-5 | Injector 4 | injector_out | MAXXECUMINI-C1-H3 | INJ 4 | injector_out | corroborated | |
| OEM-B-6 | NC | — | — | — | — | unverified | |
| OEM-B-7 | NC | — | — | — | — | unverified | |
| OEM-B-8 | NC | — | — | — | — | unverified | |
| OEM-B-9 | Power source 2 (main relay) | power_in | MAXXECUMINI-C1-H4 | +12V (ECU power supply) | power_in | corroborated | |
| OEM-C-1 | Primary O2 heater | low_side_out | — | — | — | corroborated | |
| OEM-C-10 | VTEC pressure switch | digital_in | — | — | — | corroborated | |
| OEM-C-11 | Secondary O2 heater control | low_side_out | — | — | — | single_source | |
| OEM-C-12 | Ignition coil 2 | ignition_out | MAXXECUMINI-C1-F2 | IGN 2 | ignition_out | corroborated | |
| OEM-C-13 | Ignition coil 3 | ignition_out | MAXXECUMINI-C1-F3 | IGN 3 | ignition_out | corroborated | |
| OEM-C-14 | Ignition coil 4 | ignition_out | MAXXECUMINI-C1-F4 | IGN 4 | ignition_out | corroborated | |
| OEM-C-15 | Secondary O2 sensor | lambda_nb_in | — | — | — | corroborated | |
| OEM-C-16 | Primary O2 sensor | lambda_nb_in | — | — | — | corroborated | |
| OEM-C-17 | MAP sensor | analog_in | MAXXECUMINI-C1-C3 | AIN 3 (0-5V) | analog_in | corroborated | |
| OEM-C-18 | Sensor ground 2 | sensor_ground | MAXXECUMINI-C1-A2 + MAXXECUMINI-C1-B3 + MAXXECUMINI-C1-B4 + MAXXECUMINI-C1-D4 | TRIGGER GND + SENSOR GND + SENSOR GND + SENSOR GND | sensor_ground | corroborated | |
| OEM-C-19 | Sensor 5V supply 1 (MAP) | vref | MAXXECUMINI-C1-E2 | +5V sensor supply | vref | corroborated | |
| OEM-C-2 | Alternator control | low_side_out | — | — | — | single_source | |
| OEM-C-20 | Cam (TDC1) sensor + | trigger_in | — | — | — | corroborated | |
| OEM-C-21 | Cam (TDC1) sensor − | trigger_in | — | — | — | corroborated | |
| OEM-C-22 | Knock sensor | knock_in | — | — | — | conflict | |
| OEM-C-23 | NC | — | — | — | — | unverified | |
| OEM-C-24 | Air pump electric current sensor | analog_in | — | — | — | single_source | |
| OEM-C-25 | Intake air temp sensor | temp_in | MAXXECUMINI-C1-C2 | IAT | temp_in | corroborated | |
| OEM-C-26 | Coolant temp sensor | temp_in | MAXXECUMINI-C1-C1 | CLT | temp_in | corroborated | |
| OEM-C-27 | Throttle position sensor | analog_in | MAXXECUMINI-C1-D2 | TPS | analog_in | corroborated | |
| OEM-C-28 | Sensor 5V supply 2 | vref | MAXXECUMINI-C1-E2 | +5V sensor supply | vref | corroborated | |
| OEM-C-29 | Cam (TDC2) sensor + | trigger_in | — | — | — | corroborated | |
| OEM-C-3 | Knock sensor | knock_in | — | — | — | conflict | |
| OEM-C-30 | Cam (TDC2) sensor − | sensor_ground | MAXXECUMINI-C1-A2 + MAXXECUMINI-C1-B3 + MAXXECUMINI-C1-B4 + MAXXECUMINI-C1-D4 | TRIGGER GND + SENSOR GND + SENSOR GND + SENSOR GND | sensor_ground | corroborated | |
| OEM-C-31 | Timing ground | sensor_ground | MAXXECUMINI-C1-A2 + MAXXECUMINI-C1-B3 + MAXXECUMINI-C1-B4 + MAXXECUMINI-C1-D4 | TRIGGER GND + SENSOR GND + SENSOR GND + SENSOR GND | sensor_ground | single_source | |
| OEM-C-4 | Ignition coil 1 | ignition_out | MAXXECUMINI-C1-F1 | IGN 1 | ignition_out | corroborated | |
| OEM-C-5 | Alternator FR signal | digital_in | MAXXECUMINI-C1-B2 | DIN 2 (Hall only) | digital_in | single_source | |
| OEM-C-6 | NC | — | — | — | — | unverified | |
| OEM-C-7 | Sensor ground 1 | sensor_ground | MAXXECUMINI-C1-A2 + MAXXECUMINI-C1-B3 + MAXXECUMINI-C1-B4 + MAXXECUMINI-C1-D4 | TRIGGER GND + SENSOR GND + SENSOR GND + SENSOR GND | sensor_ground | corroborated | |
| OEM-C-8 | Crank sensor + (CKP+) | trigger_in | MAXXECUMINI-C1-A1 | TRIGGER | trigger_in | corroborated | |
| OEM-C-9 | Crank sensor − (CKP−) | trigger_in | MAXXECUMINI-C1-A2 + MAXXECUMINI-C1-B3 + MAXXECUMINI-C1-B4 + MAXXECUMINI-C1-D4 | TRIGGER GND + SENSOR GND + SENSOR GND + SENSOR GND | sensor_ground | corroborated | |
| OEM-D-1 | NC | — | — | — | — | unverified | |
| OEM-D-10 | NC | — | — | — | — | unverified | |
| OEM-D-11 | NC | — | — | — | — | unverified | |
| OEM-D-12 | NC | — | — | — | — | unverified | |
| OEM-D-13 | NC | — | — | — | — | unverified | |
| OEM-D-14 | NC | — | — | — | — | unverified | |
| OEM-D-15 | NC | — | — | — | — | unverified | |
| OEM-D-16 | NC | — | — | — | — | unverified | |
| OEM-D-2 | NC | — | — | — | — | unverified | |
| OEM-D-3 | NC | — | — | — | — | unverified | |
| OEM-D-4 | NC | — | — | — | — | unverified | |
| OEM-D-5 | NC | — | — | — | — | unverified | |
| OEM-D-6 | NC | — | — | — | — | unverified | |
| OEM-D-7 | NC | — | — | — | — | unverified | |
| OEM-D-8 | NC | — | — | — | — | unverified | |
| OEM-D-9 | NC | — | — | — | — | unverified |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-B-1 | SP-14V-1 | 0.85 | no route | Power source 1 (main relay) | — | |
| W2 | OEM-B-9 | SP-14V-1 | 0.85 | no route | Power source 2 (main relay) | — | |
| W3 | SP-14V-1 | MAXXECUMINI-C1-H4 | 0.85 | no route | +12V (ECU power supply) | — | |
| W4 | OEM-B-10 | SP-GND-1 | 0.85 | no route | Power ground 2 | — | |
| W5 | OEM-B-2 | SP-GND-1 | 0.85 | no route | Power ground 1 | — | |
| W6 | OEM-B-20 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W7 | OEM-B-22 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W8 | SP-GND-1 | MAXXECUMINI-C1-G4 | 0.85 | no route | ENGINE GND | — | |
| W9 | OEM-C-18 | SP-0V-1 | 0.5 | no route | Sensor ground 2 | — | |
| W10 | OEM-C-30 | SP-0V-1 | 0.5 | no route | Cam (TDC2) sensor − | — | |
| W11 | OEM-C-31 | SP-0V-1 | 0.5 | no route | Timing ground | — | |
| W12 | OEM-C-7 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W13 | SP-0V-1 | MAXXECUMINI-C1-A2 | 0.5 | no route | TRIGGER GND | — | |
| W14 | SP-0V-1 | MAXXECUMINI-C1-B3 | 0.5 | no route | SENSOR GND | — | |
| W15 | SP-0V-1 | MAXXECUMINI-C1-B4 | 0.5 | no route | SENSOR GND | — | |
| W16 | SP-0V-1 | MAXXECUMINI-C1-D4 | 0.5 | no route | SENSOR GND | — | |
| W17 | OEM-C-19 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 1 (MAP) | — | |
| W18 | OEM-C-28 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 2 | — | |
| W19 | SP-5V1-1 | MAXXECUMINI-C1-E2 | 0.5 | no route | +5V sensor supply | — | |
| W20 | OEM-C-8 | MAXXECUMINI-C1-A1 | 0.5 | no route | Crank sensor + (CKP+) | — | |
| W21 | OEM-C-9 | SP-0V-1 | 0.5 | no route | Crank sensor − (CKP−) | — | |
| W22 | OEM-C-4 | MAXXECUMINI-C1-F1 | 0.5 | no route | Ignition coil 1 | — | |
| W23 | OEM-C-12 | MAXXECUMINI-C1-F2 | 0.5 | no route | Ignition coil 2 | — | |
| W24 | OEM-C-13 | MAXXECUMINI-C1-F3 | 0.5 | no route | Ignition coil 3 | — | |
| W25 | OEM-C-14 | MAXXECUMINI-C1-F4 | 0.5 | no route | Ignition coil 4 | — | |
| W26 | OEM-B-11 | MAXXECUMINI-C1-G3 | 0.5 | no route | Injector 1 | — | |
| W27 | OEM-B-3 | MAXXECUMINI-C1-H1 | 0.5 | no route | Injector 2 | — | |
| W28 | OEM-B-4 | MAXXECUMINI-C1-H2 | 0.5 | no route | Injector 3 | — | |
| W29 | OEM-B-5 | MAXXECUMINI-C1-H3 | 0.5 | no route | Injector 4 | — | |
| W30 | OEM-A-15 | MAXXECUMINI-C1-G2 | 0.5 | no route | Fuel pump relay (USDM) | — | |
| W31 | OEM-A-16 | MAXXECUMINI-C1-G1 | 0.5 | no route | Fuel pump relay (JDM) | — | |
| W32 | OEM-A-17 | MAXXECUMINI-C1-E1 | 0.5 | no route | A/C clutch relay | — | |
| W33 | OEM-A-20 | MAXXECUMINI-C1-D1 | 0.5 | no route | Radiator fan relay | — | |
| W34 | OEM-C-17 | MAXXECUMINI-C1-C3 | 0.5 | no route | MAP sensor | — | |
| W35 | OEM-C-27 | MAXXECUMINI-C1-D2 | 0.5 | no route | Throttle position sensor | — | |
| W36 | OEM-A-23 | MAXXECUMINI-C1-C4 | 0.5 | no route | Secondary O2 sensor | — | |
| W37 | OEM-C-26 | MAXXECUMINI-C1-C1 | 0.5 | no route | Coolant temp sensor | — | |
| W38 | OEM-C-25 | MAXXECUMINI-C1-C2 | 0.5 | no route | Intake air temp sensor | — | |
| W39 | OEM-A-9 | MAXXECUMINI-C1-B1 | 0.5 | no route | Vehicle speed sensor | — | |
| W40 | OEM-C-5 | MAXXECUMINI-C1-B2 | 0.5 | no route | Alternator FR signal | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 179679-6 | TE | S2000 2000–05 ECU harness plug B (25P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | 179680-5 | TE | S2000 2000–05 ECU harness plug C (31P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | 179681-6 | TE | S2000 2000–05 ECU harness plug A (32P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | S2K-0005-ECU-D | Honda | S2000 2000–05 ECU plug D (P/N unknown) | 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 (10)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-B-12 | Required OEM function "VTEC solenoid" (high_side_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-C-20 | Required OEM function "Cam (TDC1) sensor +" (trigger_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-C-21 | Required OEM function "Cam (TDC1) sensor −" (trigger_in) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | MAXXECUMINI-C1-D1 | MAXXECUMINI-C1-D1 "GPO 8/TACHO" drives OEM-A-20 Radiator fan relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECUMINI-C1-E1 | MAXXECUMINI-C1-E1 "GPO 3" drives OEM-A-17 A/C clutch relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECUMINI-C1-G1 | MAXXECUMINI-C1-G1 "GPO 2" drives OEM-A-16 Fuel pump relay (JDM) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECUMINI-C1-G2 | MAXXECUMINI-C1-G2 "GPO 1" drives OEM-A-15 Fuel pump relay (USDM) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | SUPPLY_GROUP | MAXXECUMINI-C1-E2 + OEM-C-19 + OEM-C-28 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-C-19 [s2k_vcc1], OEM-C-28 [s2k_vcc2]. 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 | NET_FAMILY | OEM-C-9 ↔ MAXXECUMINI-C1-A2 | OEM-C-9 "Crank sensor − (CKP−)" [trigger_in] is wired to MAXXECUMINI-C1-A2 "TRIGGER GND" [sensor_ground]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 31 optional OEM pins are not mapped: OEM-A-1 Coolant temp gauge drive; OEM-A-10 Service check signal; OEM-A-12 Immobilizer indicator light; OEM-A-13 Immobilizer enable signal; OEM-A-18 Check engine light (MIL); OEM-A-19 Tacho output; OEM-A-2 Air control valve solenoid; OEM-A-21 K-Line; OEM-A-24 Starter switch signal; OEM-A-25 Immobilizer code; OEM-A-26 Power steering load detect; OEM-A-27 A/C switch (request); OEM-A-28 Air pump relay; OEM-A-29 Fuel tank pressure sensor; OEM-A-3 Evap bypass solenoid; OEM-A-30 Electrical load detector; OEM-A-32 Brake switch; OEM-A-4 Evap canister vent shut valve; OEM-A-6 Evap canister purge valve; OEM-B-21 Backup power (battery constant); OEM-B-23 Idle air control valve; OEM-C-1 Primary O2 heater; OEM-C-10 VTEC pressure switch; OEM-C-11 Secondary O2 heater control; OEM-C-15 Secondary O2 sensor; OEM-C-16 Primary O2 sensor; OEM-C-2 Alternator control; OEM-C-22 Knock sensor; OEM-C-24 Air pump electric current sensor; OEM-C-29 Cam (TDC2) sensor +; OEM-C-3 Knock sensor |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Open items: - OEM-C 20: Cam (TDC1) sensor +: no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU MINI - OEM-C 21: Cam (TDC1) sensor −: no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU MINI - OEM-B 12: VTEC solenoid: no free high_side/ls_hs/hbridge rated ≥ 1.0 A on MaxxECU MaxxECU MINI Not wired: - OEM-B 21: Backup power (battery constant): MaxxECU MaxxECU MINI has no battery-constant input; not needed - OEM-C 29: Cam (TDC2) sensor +: no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU MINI - OEM-C 22: Knock sensor: no free knock input on MaxxECU MaxxECU MINI - OEM-C 3: Knock sensor: no free knock input on MaxxECU MaxxECU MINI - OEM-A 28: Air pump relay: no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MaxxECU MaxxECU MINI - OEM-C 1: Primary O2 heater: no free heater_low_side/low_side/ls_hs/hbridge on MaxxECU MaxxECU MINI - OEM-C 11: Secondary O2 heater control: no free heater_low_side/low_side/ls_hs/hbridge on MaxxECU MaxxECU MINI - OEM-B 23: Idle air control valve: no free low_side/ls_hs/injector/hbridge rated ≥ 1.0 A on MaxxECU MaxxECU MINI - OEM-A 1: Coolant temp gauge drive: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 12: Immobilizer indicator light: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 18: Check engine light (MIL): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 2: Air control valve solenoid: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 3: Evap bypass solenoid: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 4: Evap canister vent shut valve: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 6: Evap canister purge valve: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-C 2: Alternator control: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU MINI - OEM-A 19: Tacho output: no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU MINI - OEM-C 15: Secondary O2 sensor: no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU MINI - OEM-C 16: Primary O2 sensor: no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 29: Fuel tank pressure sensor: no free analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 30: Electrical load detector: no free analog_0_5 on MaxxECU MaxxECU MINI - OEM-C 24: Air pump electric current sensor: no free analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 24: Starter switch signal: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 26: Power steering load detect: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 27: A/C switch (request): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 32: Brake switch: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU MINI - OEM-C 10: VTEC pressure switch: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU MINI - OEM-A 21: K-Line: no free k_line on MaxxECU MaxxECU MINI - OEM-A 10: Service check signal: not classified in the library; wire by hand - OEM-A 13: Immobilizer enable signal: not classified in the library; wire by hand - OEM-A 25: Immobilizer code: not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | AEM 30-6052 Series 2 Plug & Play EMS, 2000–2005 S2000 (original ECU pinout) | https://documents.aemelectronics.com/techlibrary_30-6052_series_2_plug___play_ems.pdf | — | 2026-10-05 | 9f79620fff5a |
| 4 | vendor_doc | Haltech KB: F20C (AP1) engine | https://support.haltech.com/portal/en/kb/articles/f20c-ap1-engine | — | 2026-10-05 | e804da29d014 |
| 4 | vendor_doc | Link S2000 AP1 PlugIn installation manual | https://linkecu.com/documentation/S2000X.pdf | — | 2026-10-05 | d12b0ff3f006 |
| 4 | vendor_doc | MaxxECU GEN1 pinout (MINI / STREET / SPORT / V1 / RACE / PRO) | http://www.maxxecu.com/webhelp/wirings-maxxecu_pinout.html | archive | 2026-10-05 | 2e37b6814690 |
| 2 | forum | AllPinouts: 2000–2005 Honda S2000 ECU | https://allpinouts.org/pinouts/connectors/car/2000-2005-honda-s2000-ecu/ | archive | 2026-10-05 | 81d874e0385d |
| 2 | forum | Autodata blog: ECU Pinout Honda S2000 2000-2004 | http://autodatas.blogspot.com/2012/11/ecu-pinout-honda-s2000-2000-2004.html | — | 2026-10-05 | 33b93af7640e |
| 2 | derived | Typical load estimates (relay coil ~0.2 A, high-Z injector ~1.2 A, VVT solenoid ~1 A) | — | — | — | — |