Honda NSX NA2 1997-2005 (C32B) → MaxxECU MaxxECU RACE REV9+ (auto)
Honda NSX NA2 1997-2005 (C32B) — MaxxECU — MaxxECU RACE
⚠ 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 | 5: read the Findings page before cutting any wire |
| Size of the job | 68 wires · 12 connectors · 0 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-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-G-10 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-G-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-G-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-G-9 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-14V-1 | MAXXECURACE-C1-M4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-12 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A-25 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-G-7 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-G-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | MAXXECURACE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | MAXXECURACE-C2-G4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-B-13 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-D-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-F-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-F-2 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | MAXXECURACE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-0V-1 | MAXXECURACE-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-D-10 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-F-1 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-F-14 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-5V1-1 | MAXXECURACE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-8 | MAXXECURACE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-6 | MAXXECURACE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-D-13 | MAXXECURACE-C2-E2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-D-2 | MAXXECURACE-C2-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-11 | MAXXECURACE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-24 | MAXXECURACE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-12 | MAXXECURACE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-11 | MAXXECURACE-C1-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-10 | MAXXECURACE-C1-C2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B-2 | MAXXECURACE-C1-C3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-1 | MAXXECURACE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-2 | MAXXECURACE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-3 | MAXXECURACE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-14 | MAXXECURACE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-15 | MAXXECURACE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-16 | MAXXECURACE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-5 | MAXXECURACE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-F-19 | MAXXECURACE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-F-20 | MAXXECURACE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-D-9 | MAXXECURACE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-F-13 | MAXXECURACE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-F-12 | MAXXECURACE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-D-12 | MAXXECURACE-C2-G3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-D-7 | MAXXECURACE-C1-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-F-4 | MAXXECURACE-C1-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-8 | MAXXECURACE-C1-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-10 | MAXXECURACE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A-22 | MAXXECURACE-C1-B1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A-23 | MAXXECURACE-C1-C1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-A-9 | MAXXECURACE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A-17 | MAXXECURACE-C1-L2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-A-20 | MAXXECURACE-C1-L1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-D-16 | MAXXECURACE-C2-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-D-17 | MAXXECURACE-C2-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-D-18 | MAXXECURACE-C2-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-D-8 | MAXXECURACE-C1-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-C-7 | MAXXECURACE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-F-16 | MAXXECURACE-C1-K4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-F-6 | MAXXECURACE-C2-F3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-B-1 | MAXXECURACE-C2-F4 | 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 | MAXXECURACE-C1-M4 | MAXXECURACE-C1-H1 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MAXXECURACE-C1-H1 | MAXXECURACE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MAXXECURACE-C1-L4 | MAXXECURACE-C1-G1 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | MAXXECURACE-C1-L4 | MAXXECURACE-C1-M4 | open (OL) | power ground must not touch +12 V supply | |
| 5 | MAXXECURACE-C1-M4 | MAXXECURACE-C1-G1 | 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
MAXXECURACE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | GPO 5 | — | W54 | — | 0.5 | OEM-A-8 | — | — | — |
| A2 | IGN 1 | — | W33 | — | 0.5 | OEM-A-11 | — | — | — |
| A3 | IGN 2 | — | W34 | — | 0.5 | OEM-A-24 | — | — | — |
| A4 | GPO 8/TACHO | — | W58 | — | 0.5 | OEM-A-9 | — | — | — |
| B1 | GPO 6 | — | W56 | — | 0.5 | OEM-A-22 | — | — | — |
| B2 | IGN 3 | — | W35 | — | 0.5 | OEM-B-12 | — | — | — |
| B3 | IGN 4 | — | W36 | — | 0.5 | OEM-B-11 | — | — | — |
| B4 | GPO 1 | — | W45 | — | 0.5 | OEM-A-5 | — | — | — |
| C1 | GPO 7 | — | W57 | — | 0.5 | OEM-A-23 | — | — | — |
| C2 | IGN 5 | — | W37 | — | 0.5 | OEM-B-10 | — | — | — |
| C3 | IGN 6 | — | W38 | — | 0.5 | OEM-B-2 | — | — | — |
| C4 | GPO 2 | — | W46 | — | 0.5 | OEM-F-19 | — | — | — |
| D1 | WBO2 Heater- | — | W55 | — | 0.5 | OEM-A-10 | — | — | — |
| D2 | IGN 7 | — | — | — | — | — | — | — | — |
| D3 | IGN 8 | — | — | — | — | — | — | — | — |
| D4 | GPO 3 | — | W47 | — | 0.5 | OEM-F-20 | — | — | — |
| E1 | CAN H | — | — | — | — | — | — | — | — |
| E2 | CAN L | — | — | — | — | — | — | — | — |
| E3 | GND Shield | — | — | — | — | — | — | — | — |
| E4 | GPO 4 | — | W53 | — | 0.5 | OEM-F-4 | — | — | — |
| F1 | CLT | — | W52 | — | 0.5 | OEM-D-7 | — | — | — |
| F2 | IAT | — | W64 | — | 0.5 | OEM-D-8 | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W28 | — | 0.5 | SP-5V1-1 | — | — | — |
| G2 | TPS/AIN | — | W49 | — | 0.5 | OEM-F-13 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W29 | — | 0.5 | OEM-B-8 | — | — | — |
| H4 | HOME | — | W30 | — | 0.5 | OEM-B-6 | — | — | — |
| J1 | AIN 1 (temperature) | — | — | — | — | — | — | — | — |
| J2 | AIN 2 (temperature) | — | — | — | — | — | — | — | — |
| J3 | AIN 3 (0-5V) | — | W48 | — | 0.5 | OEM-D-9 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W50 | — | 0.5 | OEM-F-12 | — | — | — |
| K1 | INJ 1 | — | W39 | — | 0.5 | OEM-A-1 | — | — | — |
| K2 | INJ 2 | — | W40 | — | 0.5 | OEM-A-2 | — | — | — |
| K3 | DIN/VR 1 | — | W65 | — | 0.5 | OEM-C-7 | — | — | — |
| K4 | DIN/VR 2 | — | W66 | — | 0.5 | OEM-F-16 | — | — | — |
| L1 | INJ 8 | — | W60 | — | 0.5 | OEM-A-20 | — | — | — |
| L2 | INJ 7 | — | W59 | — | 0.5 | OEM-A-17 | — | — | — |
| L3 | INJ 6 | — | W44 | — | 0.5 | OEM-A-16 | — | — | — |
| L4 | Engine GND | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W41 | — | 0.5 | OEM-A-3 | — | — | — |
| M2 | INJ 4 | — | W42 | — | 0.5 | OEM-A-14 | — | — | — |
| M3 | INJ 5 | — | W43 | — | 0.5 | OEM-A-15 | — | — | — |
| M4 | +12V ECU power supply | — | W7 | — | 0.85 | SP-14V-1 | — | — | — |
MAXXECURACE-C2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | EGT 5+ | — | — | — | — | — | — | — | — |
| A2 | EGT 6+ | — | — | — | — | — | — | — | — |
| A3 | EGT 7+ | — | — | — | — | — | — | — | — |
| A4 | EGT 8+ | — | — | — | — | — | — | — | — |
| B1 | EGT 5- | — | — | — | — | — | — | — | — |
| B2 | EGT 6- | — | — | — | — | — | — | — | — |
| B3 | EGT 7- | — | — | — | — | — | — | — | — |
| B4 | EGT 8- | — | — | — | — | — | — | — | — |
| C1 | EGT 1+ | — | — | — | — | — | — | — | — |
| C2 | EGT 2+ | — | — | — | — | — | — | — | — |
| C3 | EGT 3+ | — | — | — | — | — | — | — | — |
| C4 | EGT 4+ | — | — | — | — | — | — | — | — |
| D1 | EGT 1- | — | — | — | — | — | — | — | — |
| D2 | EGT 2- | — | — | — | — | — | — | — | — |
| D3 | EGT 3- | — | — | — | — | — | — | — | — |
| D4 | EGT 4- | — | — | — | — | — | — | — | — |
| E1 | KNOCK GND | — | — | — | — | — | — | — | — |
| E2 | Knock 1 | — | W31 | — | 0.5 | OEM-D-13 | — | — | — |
| E3 | Knock 2 | — | W32 | — | 0.5 | OEM-D-2 | — | — | — |
| E4 | AIN 6 (0-5V) | — | W61 | — | 0.5 | OEM-D-16 | — | — | — |
| F1 | AIN 7 (0-5V) | — | W62 | — | 0.5 | OEM-D-17 | — | — | — |
| F2 | AIN 8 (0-5V) | — | W63 | — | 0.5 | OEM-D-18 | — | — | — |
| F3 | DIN/VR 4 | — | W67 | — | 0.5 | OEM-F-6 | — | — | — |
| F4 | DIN/VR 5 | — | W68 | — | 0.5 | OEM-B-1 | — | — | — |
| G1 | GPO 15 (+12V) | — | — | — | — | — | — | — | — |
| G2 | GPO 16 (+12V) | — | — | — | — | — | — | — | — |
| G3 | AIN 5 (0-5V) | — | W51 | — | 0.5 | OEM-D-12 | — | — | — |
| G4 | ENGINE GROUND | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| H1 | MOTOR 2+ | — | — | — | — | — | — | — | — |
| H2 | MOTOR 1- | — | — | — | — | — | — | — | — |
| H3 | MOTOR 2- | — | — | — | — | — | — | — | — |
| H4 | MOTOR 1+ | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 (INJ1) | — | W39 | — | 0.5 | MAXXECURACE-C1-K1 | — | — | — |
| 10 | Rear secondary O2 heater (RSO2SHTC) | — | W55 | — | 0.5 | MAXXECURACE-C1-D1 | — | — | — |
| 11 | Ignition coil 1 (IGN COIL1) | — | W33 | — | 0.5 | MAXXECURACE-C1-A2 | — | — | — |
| 12 | Power ground (PG1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 13 | ECM power source (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Injector 4 (INJ4) | — | W42 | — | 0.5 | MAXXECURACE-C1-M2 | — | — | — |
| 15 | Injector 5 (INJ5) | — | W43 | — | 0.5 | MAXXECURACE-C1-M3 | — | — | — |
| 16 | Injector 6 (INJ6) | — | W44 | — | 0.5 | MAXXECURACE-C1-L3 | — | — | — |
| 17 | EVAP bypass solenoid (2WBS) | — | W59 | — | 0.5 | MAXXECURACE-C1-L2 | — | — | — |
| 2 | Injector 2 (INJ2) | — | W40 | — | 0.5 | MAXXECURACE-C1-K2 | — | — | — |
| 20 | IAB control solenoid (IABCS) | — | W60 | — | 0.5 | MAXXECURACE-C1-L1 | — | — | — |
| 21 | EVAP purge control solenoid (PCS) | — | — | — | — | — | — | — | — |
| 22 | Front primary O2 heater (FPO2SHTC) | — | W56 | — | 0.5 | MAXXECURACE-C1-B1 | — | — | — |
| 23 | Rear primary O2 heater (RPO2SHTC) | — | W57 | — | 0.5 | MAXXECURACE-C1-C1 | — | — | — |
| 24 | Ignition coil 2 (IGN COIL2) | — | W34 | — | 0.5 | MAXXECURACE-C1-A3 | — | — | — |
| 25 | Power ground (PG2) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Logic ground (LG1) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W41 | — | 0.5 | MAXXECURACE-C1-M1 | — | — | — |
| 4 | EVAP canister vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 5 | Fuel pump relay (FLR1) | — | W45 | — | 0.5 | MAXXECURACE-C1-B4 | — | — | — |
| 6 | EGR control solenoid (ESOL) | — | — | — | — | — | — | — | — |
| 7 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
| 8 | A/C clutch relay (ACC) | — | W54 | — | 0.5 | MAXXECURACE-C1-A1 | — | — | — |
| 9 | Front secondary O2 heater (FSO2SHTC) | — | W58 | — | 0.5 | MAXXECURACE-C1-A4 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTEC pressure switch front (VTP SWF) | — | W68 | — | 0.5 | MAXXECURACE-C2-F4 | — | — | — |
| 10 | Ignition coil 5 (IGN COIL5) | — | W37 | — | 0.5 | MAXXECURACE-C1-C2 | — | — | — |
| 11 | Ignition coil 4 (IGN COIL4) | — | W36 | — | 0.5 | MAXXECURACE-C1-B3 | — | — | — |
| 12 | Ignition coil 3 (IGN COIL3) | — | W35 | — | 0.5 | MAXXECURACE-C1-B2 | — | — | — |
| 13 | Cylinder position sensor 2 return (CYP 2M) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | Cylinder position sensor 1 return (CYP 1M) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Crank position sensor 2 return (CKP 2M) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank position sensor 1 return (CKP 1M) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Ignition coil 6 (IGN COIL6) | — | W38 | — | 0.5 | MAXXECURACE-C1-C3 | — | — | — |
| 3 | VTEC pressure switch rear (VTP SWR) | — | — | — | — | — | — | — | — |
| 4 | Neutral switch (NT SW, M/T) | — | — | — | — | — | — | — | — |
| 5 | Cylinder position sensor 2 + (CYP 2P) | — | — | — | — | — | — | — | — |
| 6 | Cylinder position sensor 1 + (CYP 1P) | — | W30 | — | 0.5 | MAXXECURACE-C1-H4 | — | — | — |
| 7 | Crank position sensor 2 + (CKP 2P) | — | — | — | — | — | — | — | — |
| 8 | Crank position sensor 1 + (CKP 1P) | — | W29 | — | 0.5 | MAXXECURACE-C1-H3 | — | — | — |
| 9 | Logic ground (LG2) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECM power source (IGP2) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Clutch switch (MTCLS, M/T) | — | — | — | — | — | — | — | — |
| 6 | Starter switch (STS) | — | — | — | — | — | — | — | — |
| 7 | Vehicle speed sensor (VSS) | — | W65 | — | 0.5 | MAXXECURACE-C1-K3 | — | — | — |
| 8 | Engine speed pulse (NEP) | — | — | — | — | — | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Backup power (VBU) | — | — | — | — | — | — | — | — |
| 10 | Sensor 5V supply (VCC2) | — | W25 | — | 0.5 | SP-5V1-1 | — | — | — |
| 11 | Sensor ground (SG2) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Throttle position sensor (TPS) | — | W51 | — | 0.5 | MAXXECURACE-C2-G3 | — | — | — |
| 13 | Knock sensor front (KSF) | — | W31 | — | 0.5 | MAXXECURACE-C2-E2 | — | — | — |
| 16 | Front secondary O2 signal (O2S FS) | — | W61 | — | 0.5 | MAXXECURACE-C2-E4 | — | — | — |
| 17 | Rear secondary O2 signal (O2S RS) | — | W62 | — | 0.5 | MAXXECURACE-C2-F1 | — | — | — |
| 18 | Front primary O2 signal (O2S FP) | — | W63 | — | 0.5 | MAXXECURACE-C2-F2 | — | — | — |
| 19 | Rear primary O2 signal (O2S RP) | — | — | — | — | — | — | — | — |
| 2 | Knock sensor rear (KSR) | — | W32 | — | 0.5 | MAXXECURACE-C2-E3 | — | — | — |
| 20 | EGR valve lift sensor (EGRL) | — | — | — | — | — | — | — | — |
| 4 | K-line diagnostics | — | — | — | — | — | — | — | — |
| 7 | Engine coolant temperature (ECT) | — | W52 | — | 0.5 | MAXXECURACE-C1-F1 | — | — | — |
| 8 | Intake air temperature (IAT) | — | W64 | — | 0.5 | MAXXECURACE-C1-F2 | — | — | — |
| 9 | MAP sensor | — | W48 | — | 0.5 | MAXXECURACE-C1-J3 | — | — | — |
OEM-F
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor 5V supply (VCC1) | — | W26 | — | 0.5 | SP-5V1-1 | — | — | — |
| 12 | Accelerator pedal position 2 (AP2) | — | W50 | — | 0.5 | MAXXECURACE-C1-J4 | — | — | — |
| 13 | Accelerator pedal position 1 (AP1) | — | W49 | — | 0.5 | MAXXECURACE-C1-G2 | — | — | — |
| 14 | Accelerator pedal 5V supply (VCC3) | — | W27 | — | 0.5 | SP-5V1-1 | — | — | — |
| 15 | Accelerator pedal ground (SG3) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Brake switch 1 (BKSW1) | — | W66 | — | 0.5 | MAXXECURACE-C1-K4 | — | — | — |
| 19 | VTEC solenoid front (VT SOLF) | — | W46 | — | 0.5 | MAXXECURACE-C1-C4 | — | — | — |
| 2 | Sensor ground (SG1) | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | VTEC solenoid rear (VT SOLR) | — | W47 | — | 0.5 | MAXXECURACE-C1-D4 | — | — | — |
| 4 | Fuel pump relay 2 (FLR2) | — | W53 | — | 0.5 | MAXXECURACE-C1-E4 | — | — | — |
| 6 | Brake switch 2 (BKSW2) | — | W67 | — | 0.5 | MAXXECURACE-C2-F3 | — | — | — |
OEM-G
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Throttle motor common power phases 2&4 (COM2) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 11 | Throttle motor phase 3 (PM3) | — | — | — | — | — | — | — | — |
| 12 | Throttle motor phase 4 (PM4) | — | — | — | — | — | — | — | — |
| 2 | Throttle motor power source 1 (IGM1) | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Throttle motor power source 2 (IGM2) | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Throttle motor phase 1 (PM1) | — | — | — | — | — | — | — | — |
| 5 | Throttle motor phase 2 (PM2) | — | — | — | — | — | — | — | — |
| 7 | Throttle motor ground 1 (PGM1) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Throttle motor ground 2 (PGM2) | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Throttle motor common power phases 1&3 (COM1) | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W14 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-B-13 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-B-15 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-B-9 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-D-11 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-F-15 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-F-2 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | MAXXECURACE-C1-H1 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | MAXXECURACE-C1-H2 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-C-1 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-G-10 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-G-2 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-G-3 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-G-9 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | MAXXECURACE-C1-M4 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W25 | — | 0.5 | OEM-D-10 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-F-1 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | OEM-F-14 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | MAXXECURACE-C1-G1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | OEM-A-12 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A-25 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-G-7 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | OEM-G-8 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | MAXXECURACE-C1-L4 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | MAXXECURACE-C2-G4 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Injector 1 (INJ1) | injector_out | MAXXECURACE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-A-10 | Rear secondary O2 heater (RSO2SHTC) | low_side_out | MAXXECURACE-C1-D1 | WBO2 Heater- | low_side_out | single_source | |
| OEM-A-11 | Ignition coil 1 (IGN COIL1) | ignition_out | MAXXECURACE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-A-12 | Power ground (PG1) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-A-13 | ECM power source (IGP1) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-A-14 | Injector 4 (INJ4) | injector_out | MAXXECURACE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-A-15 | Injector 5 (INJ5) | injector_out | MAXXECURACE-C1-M3 | INJ 5 | injector_out | single_source | |
| OEM-A-16 | Injector 6 (INJ6) | injector_out | MAXXECURACE-C1-L3 | INJ 6 | injector_out | single_source | |
| OEM-A-17 | EVAP bypass solenoid (2WBS) | low_side_out | MAXXECURACE-C1-L2 | INJ 7 | injector_out | single_source | |
| OEM-A-2 | Injector 2 (INJ2) | injector_out | MAXXECURACE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-A-20 | IAB control solenoid (IABCS) | low_side_out | MAXXECURACE-C1-L1 | INJ 8 | injector_out | single_source | |
| OEM-A-21 | EVAP purge control solenoid (PCS) | low_side_out | — | — | — | single_source | |
| OEM-A-22 | Front primary O2 heater (FPO2SHTC) | low_side_out | MAXXECURACE-C1-B1 | GPO 6 | low_side_out | single_source | |
| OEM-A-23 | Rear primary O2 heater (RPO2SHTC) | low_side_out | MAXXECURACE-C1-C1 | GPO 7 | low_side_out | single_source | |
| OEM-A-24 | Ignition coil 2 (IGN COIL2) | ignition_out | MAXXECURACE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-A-25 | Power ground (PG2) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-A-26 | Logic ground (LG1) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A-3 | Injector 3 (INJ3) | injector_out | MAXXECURACE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-A-4 | EVAP canister vent shut valve (VSV) | low_side_out | — | — | — | single_source | |
| OEM-A-5 | Fuel pump relay (FLR1) | low_side_out | MAXXECURACE-C1-B4 | GPO 1 | low_side_out | single_source | |
| OEM-A-6 | EGR control solenoid (ESOL) | low_side_out | — | — | — | single_source | |
| OEM-A-7 | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | single_source | |
| OEM-A-8 | A/C clutch relay (ACC) | low_side_out | MAXXECURACE-C1-A1 | GPO 5 | low_side_out | single_source | |
| OEM-A-9 | Front secondary O2 heater (FSO2SHTC) | low_side_out | MAXXECURACE-C1-A4 | GPO 8/TACHO | low_side_out | single_source | |
| OEM-B-1 | VTEC pressure switch front (VTP SWF) | digital_in | MAXXECURACE-C2-F4 | DIN/VR 5 | digital_in | single_source | |
| OEM-B-10 | Ignition coil 5 (IGN COIL5) | ignition_out | MAXXECURACE-C1-C2 | IGN 5 | ignition_out | single_source | |
| OEM-B-11 | Ignition coil 4 (IGN COIL4) | ignition_out | MAXXECURACE-C1-B3 | IGN 4 | ignition_out | single_source | |
| OEM-B-12 | Ignition coil 3 (IGN COIL3) | ignition_out | MAXXECURACE-C1-B2 | IGN 3 | ignition_out | single_source | |
| OEM-B-13 | Cylinder position sensor 2 return (CYP 2M) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-14 | Cylinder position sensor 1 return (CYP 1M) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-15 | Crank position sensor 2 return (CKP 2M) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-16 | Crank position sensor 1 return (CKP 1M) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-2 | Ignition coil 6 (IGN COIL6) | ignition_out | MAXXECURACE-C1-C3 | IGN 6 | ignition_out | single_source | |
| OEM-B-3 | VTEC pressure switch rear (VTP SWR) | digital_in | — | — | — | single_source | |
| OEM-B-4 | Neutral switch (NT SW, M/T) | digital_in | — | — | — | single_source | |
| OEM-B-5 | Cylinder position sensor 2 + (CYP 2P) | trigger_in | — | — | — | single_source | |
| OEM-B-6 | Cylinder position sensor 1 + (CYP 1P) | trigger_in | MAXXECURACE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-B-7 | Crank position sensor 2 + (CKP 2P) | trigger_in | — | — | — | single_source | |
| OEM-B-8 | Crank position sensor 1 + (CKP 1P) | trigger_in | MAXXECURACE-C1-H3 | TRIGGER | trigger_in | single_source | |
| OEM-B-9 | Logic ground (LG2) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-C-1 | ECM power source (IGP2) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-C-4 | Clutch switch (MTCLS, M/T) | digital_in | — | — | — | single_source | |
| OEM-C-6 | Starter switch (STS) | digital_in | — | — | — | single_source | |
| OEM-C-7 | Vehicle speed sensor (VSS) | digital_in | MAXXECURACE-C1-K3 | DIN/VR 1 | digital_in | single_source | |
| OEM-C-8 | Engine speed pulse (NEP) | tacho_out | — | — | — | single_source | |
| OEM-D-1 | Backup power (VBU) | power_in | — | — | — | single_source | |
| OEM-D-10 | Sensor 5V supply (VCC2) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-11 | Sensor ground (SG2) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-D-12 | Throttle position sensor (TPS) | analog_in | MAXXECURACE-C2-G3 | AIN 5 (0-5V) | analog_in | single_source | |
| OEM-D-13 | Knock sensor front (KSF) | knock_in | MAXXECURACE-C2-E2 | Knock 1 | knock_in | single_source | |
| OEM-D-16 | Front secondary O2 signal (O2S FS) | lambda_nb_in | MAXXECURACE-C2-E4 | AIN 6 (0-5V) | analog_in | single_source | |
| OEM-D-17 | Rear secondary O2 signal (O2S RS) | lambda_nb_in | MAXXECURACE-C2-F1 | AIN 7 (0-5V) | analog_in | single_source | |
| OEM-D-18 | Front primary O2 signal (O2S FP) | lambda_nb_in | MAXXECURACE-C2-F2 | AIN 8 (0-5V) | analog_in | single_source | |
| OEM-D-19 | Rear primary O2 signal (O2S RP) | lambda_nb_in | — | — | — | single_source | |
| OEM-D-2 | Knock sensor rear (KSR) | knock_in | MAXXECURACE-C2-E3 | Knock 2 | knock_in | single_source | |
| OEM-D-20 | EGR valve lift sensor (EGRL) | analog_in | — | — | — | single_source | |
| OEM-D-4 | K-line diagnostics | serial | — | — | — | single_source | |
| OEM-D-7 | Engine coolant temperature (ECT) | temp_in | MAXXECURACE-C1-F1 | CLT | temp_in | single_source | |
| OEM-D-8 | Intake air temperature (IAT) | temp_in | MAXXECURACE-C1-F2 | IAT | temp_in | single_source | |
| OEM-D-9 | MAP sensor | analog_in | MAXXECURACE-C1-J3 | AIN 3 (0-5V) | analog_in | single_source | |
| OEM-F-1 | Sensor 5V supply (VCC1) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-F-12 | Accelerator pedal position 2 (AP2) | analog_in | MAXXECURACE-C1-J4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-F-13 | Accelerator pedal position 1 (AP1) | analog_in | MAXXECURACE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-F-14 | Accelerator pedal 5V supply (VCC3) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-F-15 | Accelerator pedal ground (SG3) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-F-16 | Brake switch 1 (BKSW1) | digital_in | MAXXECURACE-C1-K4 | DIN/VR 2 | digital_in | single_source | |
| OEM-F-19 | VTEC solenoid front (VT SOLF) | low_side_out | MAXXECURACE-C1-C4 | GPO 2 | low_side_out | single_source | |
| OEM-F-2 | Sensor ground (SG1) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-F-20 | VTEC solenoid rear (VT SOLR) | low_side_out | MAXXECURACE-C1-D4 | GPO 3 | low_side_out | single_source | |
| OEM-F-4 | Fuel pump relay 2 (FLR2) | low_side_out | MAXXECURACE-C1-E4 | GPO 4 | low_side_out | single_source | |
| OEM-F-6 | Brake switch 2 (BKSW2) | digital_in | MAXXECURACE-C2-F3 | DIN/VR 4 | digital_in | single_source | |
| OEM-G-10 | Throttle motor common power phases 2&4 (COM2) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-G-11 | Throttle motor phase 3 (PM3) | hbridge_out | — | — | — | single_source | |
| OEM-G-12 | Throttle motor phase 4 (PM4) | hbridge_out | — | — | — | single_source | |
| OEM-G-2 | Throttle motor power source 1 (IGM1) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-G-3 | Throttle motor power source 2 (IGM2) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-G-4 | Throttle motor phase 1 (PM1) | hbridge_out | — | — | — | single_source | |
| OEM-G-5 | Throttle motor phase 2 (PM2) | hbridge_out | — | — | — | single_source | |
| OEM-G-7 | Throttle motor ground 1 (PGM1) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-G-8 | Throttle motor ground 2 (PGM2) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-G-9 | Throttle motor common power phases 1&3 (COM1) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-13 | SP-14V-1 | 0.85 | no route | ECM power source (IGP1) | — | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | no route | ECM power source (IGP2) | — | |
| W3 | OEM-G-10 | SP-14V-1 | 0.85 | no route | Throttle motor common power phases 2&4 (COM2) | — | |
| W4 | OEM-G-2 | SP-14V-1 | 0.85 | no route | Throttle motor power source 1 (IGM1) | — | |
| W5 | OEM-G-3 | SP-14V-1 | 0.85 | no route | Throttle motor power source 2 (IGM2) | — | |
| W6 | OEM-G-9 | SP-14V-1 | 0.85 | no route | Throttle motor common power phases 1&3 (COM1) | — | |
| W7 | SP-14V-1 | MAXXECURACE-C1-M4 | 0.85 | no route | +12V ECU power supply | — | |
| W8 | OEM-A-12 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W9 | OEM-A-25 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W10 | OEM-G-7 | SP-GND-1 | 0.85 | no route | Throttle motor ground 1 (PGM1) | — | |
| W11 | OEM-G-8 | SP-GND-1 | 0.85 | no route | Throttle motor ground 2 (PGM2) | — | |
| W12 | SP-GND-1 | MAXXECURACE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W13 | SP-GND-1 | MAXXECURACE-C2-G4 | 0.85 | no route | ENGINE GROUND | — | |
| W14 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Logic ground (LG1) | — | |
| W15 | OEM-B-13 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 2 return (CYP 2M) | — | |
| W16 | OEM-B-14 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 1 return (CYP 1M) | — | |
| W17 | OEM-B-15 | SP-0V-1 | 0.5 | no route | Crank position sensor 2 return (CKP 2M) | — | |
| W18 | OEM-B-16 | SP-0V-1 | 0.5 | no route | Crank position sensor 1 return (CKP 1M) | — | |
| W19 | OEM-B-9 | SP-0V-1 | 0.5 | no route | Logic ground (LG2) | — | |
| W20 | OEM-D-11 | SP-0V-1 | 0.5 | no route | Sensor ground (SG2) | — | |
| W21 | OEM-F-15 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (SG3) | — | |
| W22 | OEM-F-2 | SP-0V-1 | 0.5 | no route | Sensor ground (SG1) | — | |
| W23 | SP-0V-1 | MAXXECURACE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W24 | SP-0V-1 | MAXXECURACE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| W25 | OEM-D-10 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC2) | — | |
| W26 | OEM-F-1 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC1) | — | |
| W27 | OEM-F-14 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCC3) | — | |
| W28 | SP-5V1-1 | MAXXECURACE-C1-G1 | 0.5 | no route | +5V sensor supply | — | |
| W29 | OEM-B-8 | MAXXECURACE-C1-H3 | 0.5 | no route | Crank position sensor 1 + (CKP 1P) | — | |
| W30 | OEM-B-6 | MAXXECURACE-C1-H4 | 0.5 | no route | Cylinder position sensor 1 + (CYP 1P) | — | |
| W31 | OEM-D-13 | MAXXECURACE-C2-E2 | 0.5 | no route | Knock sensor front (KSF) | — | |
| W32 | OEM-D-2 | MAXXECURACE-C2-E3 | 0.5 | no route | Knock sensor rear (KSR) | — | |
| W33 | OEM-A-11 | MAXXECURACE-C1-A2 | 0.5 | no route | Ignition coil 1 (IGN COIL1) | — | |
| W34 | OEM-A-24 | MAXXECURACE-C1-A3 | 0.5 | no route | Ignition coil 2 (IGN COIL2) | — | |
| W35 | OEM-B-12 | MAXXECURACE-C1-B2 | 0.5 | no route | Ignition coil 3 (IGN COIL3) | — | |
| W36 | OEM-B-11 | MAXXECURACE-C1-B3 | 0.5 | no route | Ignition coil 4 (IGN COIL4) | — | |
| W37 | OEM-B-10 | MAXXECURACE-C1-C2 | 0.5 | no route | Ignition coil 5 (IGN COIL5) | — | |
| W38 | OEM-B-2 | MAXXECURACE-C1-C3 | 0.5 | no route | Ignition coil 6 (IGN COIL6) | — | |
| W39 | OEM-A-1 | MAXXECURACE-C1-K1 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W40 | OEM-A-2 | MAXXECURACE-C1-K2 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W41 | OEM-A-3 | MAXXECURACE-C1-M1 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W42 | OEM-A-14 | MAXXECURACE-C1-M2 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W43 | OEM-A-15 | MAXXECURACE-C1-M3 | 0.5 | no route | Injector 5 (INJ5) | — | |
| W44 | OEM-A-16 | MAXXECURACE-C1-L3 | 0.5 | no route | Injector 6 (INJ6) | — | |
| W45 | OEM-A-5 | MAXXECURACE-C1-B4 | 0.5 | no route | Fuel pump relay (FLR1) | — | |
| W46 | OEM-F-19 | MAXXECURACE-C1-C4 | 0.5 | no route | VTEC solenoid front (VT SOLF) | — | |
| W47 | OEM-F-20 | MAXXECURACE-C1-D4 | 0.5 | no route | VTEC solenoid rear (VT SOLR) | — | |
| W48 | OEM-D-9 | MAXXECURACE-C1-J3 | 0.5 | no route | MAP sensor | — | |
| W49 | OEM-F-13 | MAXXECURACE-C1-G2 | 0.5 | no route | Accelerator pedal position 1 (AP1) | — | |
| W50 | OEM-F-12 | MAXXECURACE-C1-J4 | 0.5 | no route | Accelerator pedal position 2 (AP2) | — | |
| W51 | OEM-D-12 | MAXXECURACE-C2-G3 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W52 | OEM-D-7 | MAXXECURACE-C1-F1 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W53 | OEM-F-4 | MAXXECURACE-C1-E4 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W54 | OEM-A-8 | MAXXECURACE-C1-A1 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W55 | OEM-A-10 | MAXXECURACE-C1-D1 | 0.5 | no route | Rear secondary O2 heater (RSO2SHTC) | — | |
| W56 | OEM-A-22 | MAXXECURACE-C1-B1 | 0.5 | no route | Front primary O2 heater (FPO2SHTC) | — | |
| W57 | OEM-A-23 | MAXXECURACE-C1-C1 | 0.5 | no route | Rear primary O2 heater (RPO2SHTC) | — | |
| W58 | OEM-A-9 | MAXXECURACE-C1-A4 | 0.5 | no route | Front secondary O2 heater (FSO2SHTC) | — | |
| W59 | OEM-A-17 | MAXXECURACE-C1-L2 | 0.5 | no route | EVAP bypass solenoid (2WBS) | — | |
| W60 | OEM-A-20 | MAXXECURACE-C1-L1 | 0.5 | no route | IAB control solenoid (IABCS) | — | |
| W61 | OEM-D-16 | MAXXECURACE-C2-E4 | 0.5 | no route | Front secondary O2 signal (O2S FS) | — | |
| W62 | OEM-D-17 | MAXXECURACE-C2-F1 | 0.5 | no route | Rear secondary O2 signal (O2S RS) | — | |
| W63 | OEM-D-18 | MAXXECURACE-C2-F2 | 0.5 | no route | Front primary O2 signal (O2S FP) | — | |
| W64 | OEM-D-8 | MAXXECURACE-C1-F2 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W65 | OEM-C-7 | MAXXECURACE-C1-K3 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W66 | OEM-F-16 | MAXXECURACE-C1-K4 | 0.5 | no route | Brake switch 1 (BKSW1) | — | |
| W67 | OEM-F-6 | MAXXECURACE-C2-F3 | 0.5 | no route | Brake switch 2 (BKSW2) | — | |
| W68 | OEM-B-1 | MAXXECURACE-C2-F4 | 0.5 | no route | VTEC pressure switch front (VTP SWF) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (13)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | DBW_SENSOR_INPUT | tps | Only 0 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them. |
| error | REQUIRED_UNMAPPED | OEM-G-11 | Required OEM function "Throttle motor phase 3 (PM3)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-12 | Required OEM function "Throttle motor phase 4 (PM4)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-4 | Required OEM function "Throttle motor phase 1 (PM1)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-5 | Required OEM function "Throttle motor phase 2 (PM2)" (hbridge_out) is not connected to the new ECU. |
| warn | DBW_SHARED_5V | MAXXECURACE-C1-G1 + OEM-D-10 + OEM-F-1 + OEM-F-14 + SP-5V1-1 | These 5 V supplies are separate in the stock car (OEM-D-10 [tps], OEM-F-14 [pedal]) and here share one ECU 5 V (MAXXECURACE-C1-G1). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. MaxxECU RACE has 1 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 | MAXXECURACE-C1-A1 | MAXXECURACE-C1-A1 "GPO 5" drives OEM-A-8 A/C clutch relay (ACC) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECURACE-C1-B4 | MAXXECURACE-C1-B4 "GPO 1" drives OEM-A-5 Fuel pump relay (FLR1) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECURACE-C1-E4 | MAXXECURACE-C1-E4 "GPO 4" drives OEM-F-4 Fuel pump relay 2 (FLR2) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | SUPPLY_GROUP | MAXXECURACE-C1-G1 + OEM-D-10 + OEM-F-1 + OEM-F-14 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-D-10 [tps], OEM-F-14 [pedal]. 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-A-17 ↔ MAXXECURACE-C1-L2 | OEM-A-17 "EVAP bypass solenoid (2WBS)" [low_side_out] is wired to MAXXECURACE-C1-L2 "INJ 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-20 ↔ MAXXECURACE-C1-L1 | OEM-A-20 "IAB control solenoid (IABCS)" [low_side_out] is wired to MAXXECURACE-C1-L1 "INJ 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 14 optional OEM pins are not mapped: OEM-A-21 EVAP purge control solenoid (PCS); OEM-A-4 EVAP canister vent shut valve (VSV); OEM-A-6 EGR control solenoid (ESOL); OEM-A-7 Malfunction indicator lamp (MIL); OEM-B-3 VTEC pressure switch rear (VTP SWR); OEM-B-4 Neutral switch (NT SW, M/T); OEM-B-5 Cylinder position sensor 2 + (CYP 2P); OEM-B-7 Crank position sensor 2 + (CKP 2P); OEM-C-4 Clutch switch (MTCLS, M/T); OEM-C-6 Starter switch (STS); OEM-C-8 Engine speed pulse (NEP); OEM-D-19 Rear primary O2 signal (O2S RP); OEM-D-20 EGR valve lift sensor (EGRL); OEM-D-4 K-line diagnostics |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-D-1 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Honda C32B not found in the ECU's docs (MaxxECU trigger list has no C30A/C32B/NSX (Honda K20/K20A2/K20Z4/F20C only)) - This car has Honda Type 1A (1997+) immobilizer; needs a delete/bypass Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-G 4: Throttle motor phase 1 (PM1): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 5: Throttle motor phase 2 (PM2): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 11: Throttle motor phase 3 (PM3): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 12: Throttle motor phase 4 (PM4): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand Not wired: - OEM-D 1: Backup power (VBU): MaxxECU MaxxECU RACE has no battery-constant input; not needed - OEM-B 7: Crank position sensor 2 + (CKP 2P): no free crank_vr/frequency_in input on MaxxECU MaxxECU RACE - OEM-B 5: Cylinder position sensor 2 + (CYP 2P): no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU RACE - OEM-A 21: EVAP purge control solenoid (PCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-A 4: EVAP canister vent shut valve (VSV): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-A 6: EGR control solenoid (ESOL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-A 7: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-C 8: Engine speed pulse (NEP): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU RACE - OEM-D 19: Rear primary O2 signal (O2S RP): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU RACE - OEM-D 20: EGR valve lift sensor (EGRL): no free analog_0_5 on MaxxECU MaxxECU RACE - OEM-B 3: VTEC pressure switch rear (VTP SWR): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B 4: Neutral switch (NT SW, M/T): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-C 4: Clutch switch (MTCLS, M/T): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-C 6: Starter switch (STS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-D 4: K-line diagnostics: no free k_line on MaxxECU MaxxECU RACE
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | 1997-2005 Acura NSX Service Manual §11 (PGM-FI), ECM terminal arrangement | https://www.manualslib.com/manual/1540331/Acura-Nsx-1997.html | — | — | — |
| 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 |