Honda NSX NA2 1997-2005 (C32B) → MoTeC M170 13170 (auto)
Honda NSX NA2 1997-2005 (C32B) — MoTeC — M170
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12
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 | 70 wires · 11 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 | M170-A-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-14V-1 | M170-A-32 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-14V-1 | M170-A-41 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-D-1 | M170-A-54 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-A-12 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-25 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-G-7 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-G-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-GND-1 | M170-A-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-GND-1 | M170-A-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-GND-1 | M170-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-GND-1 | M170-A-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-GND-1 | M170-A-21 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B-13 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-B-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-D-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-F-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-F-2 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | SP-0V-1 | M170-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | SP-0V-1 | M170-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-D-10 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-F-1 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | SP-5V1-1 | M170-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-F-14 | M170-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-8 | M170-A-49 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-7 | M170-A-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-6 | M170-A-46 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B-5 | M170-A-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-D-13 | M170-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-D-2 | M170-A-60 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-11 | M170-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-24 | M170-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-B-12 | M170-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B-11 | M170-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-10 | M170-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B-2 | M170-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-1 | M170-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-2 | M170-A-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-3 | M170-A-50 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-14 | M170-A-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-15 | M170-A-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-16 | M170-A-66 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-5 | M170-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-F-19 | M170-A-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-F-20 | M170-A-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-D-9 | M170-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-F-13 | M170-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-F-12 | M170-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-D-12 | M170-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-D-7 | M170-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-F-4 | M170-A-62 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-D-16 | M170-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-D-17 | M170-A-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-D-18 | M170-A-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-D-19 | M170-A-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-D-8 | M170-A-38 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-C-7 | M170-A-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-F-16 | M170-A-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-F-6 | M170-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-B-1 | M170-A-22 | 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 | M170-A-23 | M170-A-11 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | M170-A-11 | M170-A-16 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | M170-A-11 | M170-A-34 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | M170-A-11 | M170-A-54 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | M170-A-14 | M170-A-16 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | M170-A-14 | M170-A-23 | open (OL) | power ground must not touch +12 V supply | |
| 7 | M170-A-14 | M170-A-34 | open (OL) | power ground must not touch 5 V sensor reference | |
| 8 | M170-A-14 | M170-A-54 | open (OL) | power ground must not touch +12 V supply | |
| 9 | M170-A-23 | M170-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 10 | M170-A-23 | M170-A-34 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 11 | M170-A-54 | M170-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 12 | M170-A-54 | M170-A-34 | 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
M170-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Low Side Ignition 1 | — | W41 | — | 0.5 | OEM-A-11 | — | — | — |
| 10 | Low Side Ignition 4 | — | W44 | — | 0.5 | OEM-B-11 | — | — | — |
| 11 | Sensor 0V A | — | W29 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Analogue Voltage Input 5 | — | W62 | — | 0.5 | OEM-D-16 | — | — | — |
| 13 | Universal Digital Input 7 | — | W69 | — | 0.5 | OEM-F-6 | — | — | — |
| 14 | Battery Negative 1 | — | W15 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Battery Negative 2 | — | W16 | — | 0.85 | SP-GND-1 | — | — | — |
| 16 | Sensor 5.0V A | — | W34 | — | 0.5 | OEM-F-14 | — | — | — |
| 17 | Low Side Ignition 5 | — | W45 | — | 0.5 | OEM-B-10 | — | — | — |
| 18 | Analogue Voltage Input 2 | — | W57 | — | 0.5 | OEM-F-13 | — | — | — |
| 19 | Battery Negative 3 | — | W17 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 20 | Battery Negative 4 | — | W18 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Battery Negative 5 | — | W19 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Universal Digital Input 8 | — | W70 | — | 0.5 | OEM-B-1 | — | — | — |
| 23 | Battery Positive | — | W7 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | Peak Hold Injector 5 | — | W53 | — | 0.5 | OEM-A-5 | — | — | — |
| 25 | Low Side Ignition 6 | — | W46 | — | 0.5 | OEM-B-2 | — | — | — |
| 26 | Analogue Voltage Input 1 | — | W56 | — | 0.5 | OEM-D-9 | — | — | — |
| 27 | Sensor 0V B | — | W30 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Analogue Temperature Input 1 | — | W60 | — | 0.5 | OEM-D-7 | — | — | — |
| 29 | Knock Input 1 | — | W39 | — | 0.5 | OEM-D-13 | — | — | — |
| 3 | Low Side Ignition 7 | — | — | — | — | — | — | — | — |
| 30 | Analogue Temperature Input 3 | — | — | — | — | — | — | — | — |
| 31 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 32 | Battery Positive | — | W8 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Peak Hold Injector 1 | — | W47 | — | 0.5 | OEM-A-1 | — | — | — |
| 34 | Sensor 5.0V B | — | W33 | — | 0.5 | SP-5V1-1 | — | — | — |
| 35 | Analogue Voltage Input 7 | — | W64 | — | 0.5 | OEM-D-18 | — | — | — |
| 36 | Analogue Voltage Input 6 | — | W63 | — | 0.5 | OEM-D-17 | — | — | — |
| 37 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 38 | Analogue Temperature Input 2 | — | W66 | — | 0.5 | OEM-D-8 | — | — | — |
| 39 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 4 | Low Side Ignition 3 | — | W43 | — | 0.5 | OEM-B-12 | — | — | — |
| 40 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 41 | Battery Positive | — | W9 | — | 0.85 | SP-14V-1 | — | — | — |
| 42 | Peak Hold Injector 6 | — | W54 | — | 0.5 | OEM-F-19 | — | — | — |
| 43 | Low Side Injector 1 | — | W48 | — | 0.5 | OEM-A-2 | — | — | — |
| 44 | Analogue Voltage Input 8 | — | W65 | — | 0.5 | OEM-D-19 | — | — | — |
| 45 | Universal Digital Input 4 | — | W38 | — | 0.5 | OEM-B-5 | — | — | — |
| 46 | Universal Digital Input 3 | — | W37 | — | 0.5 | OEM-B-6 | — | — | — |
| 47 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 48 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 49 | Universal Digital Input 1 | — | W35 | — | 0.5 | OEM-B-8 | — | — | — |
| 5 | Low Side Ignition 2 | — | W42 | — | 0.5 | OEM-A-24 | — | — | — |
| 50 | Peak Hold Injector 2 | — | W49 | — | 0.5 | OEM-A-3 | — | — | — |
| 51 | Low Side Injector 2 | — | W50 | — | 0.5 | OEM-A-14 | — | — | — |
| 52 | Universal Digital Input 5 | — | W67 | — | 0.5 | OEM-C-7 | — | — | — |
| 53 | Universal Digital Input 6 | — | W68 | — | 0.5 | OEM-F-16 | — | — | — |
| 54 | Battery Backup | — | W10 | — | 0.85 | OEM-D-1 | — | — | — |
| 55 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 56 | Universal Digital Input 2 | — | W36 | — | 0.5 | OEM-B-7 | — | — | — |
| 57 | Peak Hold Injector 7 | — | W55 | — | 0.5 | OEM-F-20 | — | — | — |
| 58 | Half Bridge Output 5 | — | — | — | — | — | — | — | — |
| 59 | Half Bridge Output 3 | — | — | — | — | — | — | — | — |
| 6 | Analogue Voltage Input 3 | — | W58 | — | 0.5 | OEM-F-12 | — | — | — |
| 60 | Knock Input 2 | — | W40 | — | 0.5 | OEM-D-2 | — | — | — |
| 61 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 62 | Peak Hold Injector 8 | — | W61 | — | 0.5 | OEM-F-4 | — | — | — |
| 63 | Peak Hold Injector 3 | — | W51 | — | 0.5 | OEM-A-15 | — | — | — |
| 64 | Half Bridge Output 6 | — | — | — | — | — | — | — | — |
| 65 | Half Bridge Output 4 | — | — | — | — | — | — | — | — |
| 66 | Peak Hold Injector 4 | — | W52 | — | 0.5 | OEM-A-16 | — | — | — |
| 7 | Analogue Voltage Input 4 | — | W59 | — | 0.5 | OEM-D-12 | — | — | — |
| 8 | Half Bridge Output 2 | — | — | — | — | — | — | — | — |
| 9 | Half Bridge Output 1 | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 (INJ1) | — | W47 | — | 0.5 | M170-A-33 | — | — | — |
| 10 | Rear secondary O2 heater (RSO2SHTC) | — | — | — | — | — | — | — | — |
| 11 | Ignition coil 1 (IGN COIL1) | — | W41 | — | 0.5 | M170-A-1 | — | — | — |
| 12 | Power ground (PG1) | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 13 | ECM power source (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Injector 4 (INJ4) | — | W50 | — | 0.5 | M170-A-51 | — | — | — |
| 15 | Injector 5 (INJ5) | — | W51 | — | 0.5 | M170-A-63 | — | — | — |
| 16 | Injector 6 (INJ6) | — | W52 | — | 0.5 | M170-A-66 | — | — | — |
| 17 | EVAP bypass solenoid (2WBS) | — | — | — | — | — | — | — | — |
| 2 | Injector 2 (INJ2) | — | W48 | — | 0.5 | M170-A-43 | — | — | — |
| 20 | IAB control solenoid (IABCS) | — | — | — | — | — | — | — | — |
| 21 | EVAP purge control solenoid (PCS) | — | — | — | — | — | — | — | — |
| 22 | Front primary O2 heater (FPO2SHTC) | — | — | — | — | — | — | — | — |
| 23 | Rear primary O2 heater (RPO2SHTC) | — | — | — | — | — | — | — | — |
| 24 | Ignition coil 2 (IGN COIL2) | — | W42 | — | 0.5 | M170-A-5 | — | — | — |
| 25 | Power ground (PG2) | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Logic ground (LG1) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W49 | — | 0.5 | M170-A-50 | — | — | — |
| 4 | EVAP canister vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 5 | Fuel pump relay (FLR1) | — | W53 | — | 0.5 | M170-A-24 | — | — | — |
| 6 | EGR control solenoid (ESOL) | — | — | — | — | — | — | — | — |
| 7 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
| 8 | A/C clutch relay (ACC) | — | — | — | — | — | — | — | — |
| 9 | Front secondary O2 heater (FSO2SHTC) | — | — | — | — | — | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTEC pressure switch front (VTP SWF) | — | W70 | — | 0.5 | M170-A-22 | — | — | — |
| 10 | Ignition coil 5 (IGN COIL5) | — | W45 | — | 0.5 | M170-A-17 | — | — | — |
| 11 | Ignition coil 4 (IGN COIL4) | — | W44 | — | 0.5 | M170-A-10 | — | — | — |
| 12 | Ignition coil 3 (IGN COIL3) | — | W43 | — | 0.5 | M170-A-4 | — | — | — |
| 13 | Cylinder position sensor 2 return (CYP 2M) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | Cylinder position sensor 1 return (CYP 1M) | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Crank position sensor 2 return (CKP 2M) | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank position sensor 1 return (CKP 1M) | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Ignition coil 6 (IGN COIL6) | — | W46 | — | 0.5 | M170-A-25 | — | — | — |
| 3 | VTEC pressure switch rear (VTP SWR) | — | — | — | — | — | — | — | — |
| 4 | Neutral switch (NT SW, M/T) | — | — | — | — | — | — | — | — |
| 5 | Cylinder position sensor 2 + (CYP 2P) | — | W38 | — | 0.5 | M170-A-45 | — | — | — |
| 6 | Cylinder position sensor 1 + (CYP 1P) | — | W37 | — | 0.5 | M170-A-46 | — | — | — |
| 7 | Crank position sensor 2 + (CKP 2P) | — | W36 | — | 0.5 | M170-A-56 | — | — | — |
| 8 | Crank position sensor 1 + (CKP 1P) | — | W35 | — | 0.5 | M170-A-49 | — | — | — |
| 9 | Logic ground (LG2) | — | W25 | — | 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) | — | W67 | — | 0.5 | M170-A-52 | — | — | — |
| 8 | Engine speed pulse (NEP) | — | — | — | — | — | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Backup power (VBU) | — | W10 | — | 0.85 | M170-A-54 | — | — | — |
| 10 | Sensor 5V supply (VCC2) | — | W31 | — | 0.5 | SP-5V1-1 | — | — | — |
| 11 | Sensor ground (SG2) | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Throttle position sensor (TPS) | — | W59 | — | 0.5 | M170-A-7 | — | — | — |
| 13 | Knock sensor front (KSF) | — | W39 | — | 0.5 | M170-A-29 | — | — | — |
| 16 | Front secondary O2 signal (O2S FS) | — | W62 | — | 0.5 | M170-A-12 | — | — | — |
| 17 | Rear secondary O2 signal (O2S RS) | — | W63 | — | 0.5 | M170-A-36 | — | — | — |
| 18 | Front primary O2 signal (O2S FP) | — | W64 | — | 0.5 | M170-A-35 | — | — | — |
| 19 | Rear primary O2 signal (O2S RP) | — | W65 | — | 0.5 | M170-A-44 | — | — | — |
| 2 | Knock sensor rear (KSR) | — | W40 | — | 0.5 | M170-A-60 | — | — | — |
| 20 | EGR valve lift sensor (EGRL) | — | — | — | — | — | — | — | — |
| 4 | K-line diagnostics | — | — | — | — | — | — | — | — |
| 7 | Engine coolant temperature (ECT) | — | W60 | — | 0.5 | M170-A-28 | — | — | — |
| 8 | Intake air temperature (IAT) | — | W66 | — | 0.5 | M170-A-38 | — | — | — |
| 9 | MAP sensor | — | W56 | — | 0.5 | M170-A-26 | — | — | — |
OEM-F
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor 5V supply (VCC1) | — | W32 | — | 0.5 | SP-5V1-1 | — | — | — |
| 12 | Accelerator pedal position 2 (AP2) | — | W58 | — | 0.5 | M170-A-6 | — | — | — |
| 13 | Accelerator pedal position 1 (AP1) | — | W57 | — | 0.5 | M170-A-18 | — | — | — |
| 14 | Accelerator pedal 5V supply (VCC3) | — | W34 | — | 0.5 | M170-A-16 | — | — | — |
| 15 | Accelerator pedal ground (SG3) | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Brake switch 1 (BKSW1) | — | W68 | — | 0.5 | M170-A-53 | — | — | — |
| 19 | VTEC solenoid front (VT SOLF) | — | W54 | — | 0.5 | M170-A-42 | — | — | — |
| 2 | Sensor ground (SG1) | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | VTEC solenoid rear (VT SOLR) | — | W55 | — | 0.5 | M170-A-57 | — | — | — |
| 4 | Fuel pump relay 2 (FLR2) | — | W61 | — | 0.5 | M170-A-62 | — | — | — |
| 6 | Brake switch 2 (BKSW2) | — | W69 | — | 0.5 | M170-A-13 | — | — | — |
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) | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Throttle motor ground 2 (PGM2) | — | W14 | — | 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 | — | — | W20 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-B-13 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | OEM-B-15 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-B-9 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-D-11 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | OEM-F-15 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | OEM-F-2 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | M170-A-11 | — | — | — |
| 1 | — | — | W30 | — | 0.5 | M170-A-27 | — | — | — |
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 | M170-A-23 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | M170-A-32 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | M170-A-41 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W31 | — | 0.5 | OEM-D-10 | — | — | — |
| 1 | — | — | W32 | — | 0.5 | OEM-F-1 | — | — | — |
| 1 | — | — | W33 | — | 0.5 | M170-A-34 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.85 | OEM-A-12 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | OEM-A-25 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | OEM-G-7 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | OEM-G-8 | — | — | — |
| 1 | — | — | W15 | — | 0.85 | M170-A-14 | — | — | — |
| 1 | — | — | W16 | — | 0.85 | M170-A-15 | — | — | — |
| 1 | — | — | W17 | — | 0.85 | M170-A-19 | — | — | — |
| 1 | — | — | W18 | — | 0.85 | M170-A-20 | — | — | — |
| 1 | — | — | W19 | — | 0.85 | M170-A-21 | — | — | — |
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 | M170-A-33 | Peak Hold Injector 1 | injector_out | single_source | |
| OEM-A-10 | Rear secondary O2 heater (RSO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-A-11 | Ignition coil 1 (IGN COIL1) | ignition_out | M170-A-1 | Low Side Ignition 1 | ignition_out | single_source | |
| OEM-A-12 | Power ground (PG1) | ground | M170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21 | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 | ground | single_source | |
| OEM-A-13 | ECM power source (IGP1) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | single_source | |
| OEM-A-14 | Injector 4 (INJ4) | injector_out | M170-A-51 | Low Side Injector 2 | injector_out | single_source | |
| OEM-A-15 | Injector 5 (INJ5) | injector_out | M170-A-63 | Peak Hold Injector 3 | injector_out | single_source | |
| OEM-A-16 | Injector 6 (INJ6) | injector_out | M170-A-66 | Peak Hold Injector 4 | injector_out | single_source | |
| OEM-A-17 | EVAP bypass solenoid (2WBS) | low_side_out | — | — | — | single_source | |
| OEM-A-2 | Injector 2 (INJ2) | injector_out | M170-A-43 | Low Side Injector 1 | injector_out | single_source | |
| OEM-A-20 | IAB control solenoid (IABCS) | low_side_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 | — | — | — | single_source | |
| OEM-A-23 | Rear primary O2 heater (RPO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-A-24 | Ignition coil 2 (IGN COIL2) | ignition_out | M170-A-5 | Low Side Ignition 2 | ignition_out | single_source | |
| OEM-A-25 | Power ground (PG2) | ground | M170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21 | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 | ground | single_source | |
| OEM-A-26 | Logic ground (LG1) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-A-3 | Injector 3 (INJ3) | injector_out | M170-A-50 | Peak Hold Injector 2 | 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 | M170-A-24 | Peak Hold Injector 5 | injector_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 | — | — | — | single_source | |
| OEM-A-9 | Front secondary O2 heater (FSO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-B-1 | VTEC pressure switch front (VTP SWF) | digital_in | M170-A-22 | Universal Digital Input 8 | digital_in | single_source | |
| OEM-B-10 | Ignition coil 5 (IGN COIL5) | ignition_out | M170-A-17 | Low Side Ignition 5 | ignition_out | single_source | |
| OEM-B-11 | Ignition coil 4 (IGN COIL4) | ignition_out | M170-A-10 | Low Side Ignition 4 | ignition_out | single_source | |
| OEM-B-12 | Ignition coil 3 (IGN COIL3) | ignition_out | M170-A-4 | Low Side Ignition 3 | ignition_out | single_source | |
| OEM-B-13 | Cylinder position sensor 2 return (CYP 2M) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-14 | Cylinder position sensor 1 return (CYP 1M) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-15 | Crank position sensor 2 return (CKP 2M) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-16 | Crank position sensor 1 return (CKP 1M) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-2 | Ignition coil 6 (IGN COIL6) | ignition_out | M170-A-25 | Low Side Ignition 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 | M170-A-45 | Universal Digital Input 4 | digital_in | single_source | |
| OEM-B-6 | Cylinder position sensor 1 + (CYP 1P) | trigger_in | M170-A-46 | Universal Digital Input 3 | digital_in | single_source | |
| OEM-B-7 | Crank position sensor 2 + (CKP 2P) | trigger_in | M170-A-56 | Universal Digital Input 2 | digital_in | single_source | |
| OEM-B-8 | Crank position sensor 1 + (CKP 1P) | trigger_in | M170-A-49 | Universal Digital Input 1 | digital_in | single_source | |
| OEM-B-9 | Logic ground (LG2) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-C-1 | ECM power source (IGP2) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | 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 | M170-A-52 | Universal Digital Input 5 | digital_in | single_source | |
| OEM-C-8 | Engine speed pulse (NEP) | tacho_out | — | — | — | single_source | |
| OEM-D-1 | Backup power (VBU) | power_in | M170-A-54 | Battery Backup | power_in | single_source | |
| OEM-D-10 | Sensor 5V supply (VCC2) | vref | M170-A-34 | Sensor 5.0V B | vref | single_source | |
| OEM-D-11 | Sensor ground (SG2) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-D-12 | Throttle position sensor (TPS) | analog_in | M170-A-7 | Analogue Voltage Input 4 | analog_in | single_source | |
| OEM-D-13 | Knock sensor front (KSF) | knock_in | M170-A-29 | Knock Input 1 | knock_in | single_source | |
| OEM-D-16 | Front secondary O2 signal (O2S FS) | lambda_nb_in | M170-A-12 | Analogue Voltage Input 5 | analog_in | single_source | |
| OEM-D-17 | Rear secondary O2 signal (O2S RS) | lambda_nb_in | M170-A-36 | Analogue Voltage Input 6 | analog_in | single_source | |
| OEM-D-18 | Front primary O2 signal (O2S FP) | lambda_nb_in | M170-A-35 | Analogue Voltage Input 7 | analog_in | single_source | |
| OEM-D-19 | Rear primary O2 signal (O2S RP) | lambda_nb_in | M170-A-44 | Analogue Voltage Input 8 | analog_in | single_source | |
| OEM-D-2 | Knock sensor rear (KSR) | knock_in | M170-A-60 | Knock Input 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 | M170-A-28 | Analogue Temperature Input 1 | temp_in | single_source | |
| OEM-D-8 | Intake air temperature (IAT) | temp_in | M170-A-38 | Analogue Temperature Input 2 | temp_in | single_source | |
| OEM-D-9 | MAP sensor | analog_in | M170-A-26 | Analogue Voltage Input 1 | analog_in | single_source | |
| OEM-F-1 | Sensor 5V supply (VCC1) | vref | M170-A-34 | Sensor 5.0V B | vref | single_source | |
| OEM-F-12 | Accelerator pedal position 2 (AP2) | analog_in | M170-A-6 | Analogue Voltage Input 3 | analog_in | single_source | |
| OEM-F-13 | Accelerator pedal position 1 (AP1) | analog_in | M170-A-18 | Analogue Voltage Input 2 | analog_in | single_source | |
| OEM-F-14 | Accelerator pedal 5V supply (VCC3) | vref | M170-A-16 | Sensor 5.0V A | vref | single_source | |
| OEM-F-15 | Accelerator pedal ground (SG3) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-F-16 | Brake switch 1 (BKSW1) | digital_in | M170-A-53 | Universal Digital Input 6 | digital_in | single_source | |
| OEM-F-19 | VTEC solenoid front (VT SOLF) | low_side_out | M170-A-42 | Peak Hold Injector 6 | injector_out | single_source | |
| OEM-F-2 | Sensor ground (SG1) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-F-20 | VTEC solenoid rear (VT SOLR) | low_side_out | M170-A-57 | Peak Hold Injector 7 | injector_out | single_source | |
| OEM-F-4 | Fuel pump relay 2 (FLR2) | low_side_out | M170-A-62 | Peak Hold Injector 8 | injector_out | single_source | |
| OEM-F-6 | Brake switch 2 (BKSW2) | digital_in | M170-A-13 | Universal Digital Input 7 | digital_in | single_source | |
| OEM-G-10 | Throttle motor common power phases 2&4 (COM2) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | 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 | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | single_source | |
| OEM-G-3 | Throttle motor power source 2 (IGM2) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | 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 | M170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21 | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 | ground | single_source | |
| OEM-G-8 | Throttle motor ground 2 (PGM2) | ground | M170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21 | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 | ground | single_source | |
| OEM-G-9 | Throttle motor common power phases 1&3 (COM1) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | 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 | M170-A-23 | 0.85 | no route | Battery Positive | — | |
| W8 | SP-14V-1 | M170-A-32 | 0.85 | no route | Battery Positive | — | |
| W9 | SP-14V-1 | M170-A-41 | 0.85 | no route | Battery Positive | — | |
| W10 | OEM-D-1 | M170-A-54 | 0.85 | no route | Backup power (VBU) | — | |
| W11 | OEM-A-12 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W12 | OEM-A-25 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W13 | OEM-G-7 | SP-GND-1 | 0.85 | no route | Throttle motor ground 1 (PGM1) | — | |
| W14 | OEM-G-8 | SP-GND-1 | 0.85 | no route | Throttle motor ground 2 (PGM2) | — | |
| W15 | SP-GND-1 | M170-A-14 | 0.85 | no route | Battery Negative 1 | — | |
| W16 | SP-GND-1 | M170-A-15 | 0.85 | no route | Battery Negative 2 | — | |
| W17 | SP-GND-1 | M170-A-19 | 0.85 | no route | Battery Negative 3 | — | |
| W18 | SP-GND-1 | M170-A-20 | 0.85 | no route | Battery Negative 4 | — | |
| W19 | SP-GND-1 | M170-A-21 | 0.85 | no route | Battery Negative 5 | — | |
| W20 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Logic ground (LG1) | — | |
| W21 | OEM-B-13 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 2 return (CYP 2M) | — | |
| W22 | OEM-B-14 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 1 return (CYP 1M) | — | |
| W23 | OEM-B-15 | SP-0V-1 | 0.5 | no route | Crank position sensor 2 return (CKP 2M) | — | |
| W24 | OEM-B-16 | SP-0V-1 | 0.5 | no route | Crank position sensor 1 return (CKP 1M) | — | |
| W25 | OEM-B-9 | SP-0V-1 | 0.5 | no route | Logic ground (LG2) | — | |
| W26 | OEM-D-11 | SP-0V-1 | 0.5 | no route | Sensor ground (SG2) | — | |
| W27 | OEM-F-15 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (SG3) | — | |
| W28 | OEM-F-2 | SP-0V-1 | 0.5 | no route | Sensor ground (SG1) | — | |
| W29 | SP-0V-1 | M170-A-11 | 0.5 | no route | Sensor 0V A | — | |
| W30 | SP-0V-1 | M170-A-27 | 0.5 | no route | Sensor 0V B | — | |
| W31 | OEM-D-10 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC2) | — | |
| W32 | OEM-F-1 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC1) | — | |
| W33 | SP-5V1-1 | M170-A-34 | 0.5 | no route | Sensor 5.0V B | — | |
| W34 | OEM-F-14 | M170-A-16 | 0.5 | no route | Accelerator pedal 5V supply (VCC3) | — | |
| W35 | OEM-B-8 | M170-A-49 | 0.5 | no route | Crank position sensor 1 + (CKP 1P) | — | |
| W36 | OEM-B-7 | M170-A-56 | 0.5 | no route | Crank position sensor 2 + (CKP 2P) | — | |
| W37 | OEM-B-6 | M170-A-46 | 0.5 | no route | Cylinder position sensor 1 + (CYP 1P) | — | |
| W38 | OEM-B-5 | M170-A-45 | 0.5 | no route | Cylinder position sensor 2 + (CYP 2P) | — | |
| W39 | OEM-D-13 | M170-A-29 | 0.5 | no route | Knock sensor front (KSF) | — | |
| W40 | OEM-D-2 | M170-A-60 | 0.5 | no route | Knock sensor rear (KSR) | — | |
| W41 | OEM-A-11 | M170-A-1 | 0.5 | no route | Ignition coil 1 (IGN COIL1) | — | |
| W42 | OEM-A-24 | M170-A-5 | 0.5 | no route | Ignition coil 2 (IGN COIL2) | — | |
| W43 | OEM-B-12 | M170-A-4 | 0.5 | no route | Ignition coil 3 (IGN COIL3) | — | |
| W44 | OEM-B-11 | M170-A-10 | 0.5 | no route | Ignition coil 4 (IGN COIL4) | — | |
| W45 | OEM-B-10 | M170-A-17 | 0.5 | no route | Ignition coil 5 (IGN COIL5) | — | |
| W46 | OEM-B-2 | M170-A-25 | 0.5 | no route | Ignition coil 6 (IGN COIL6) | — | |
| W47 | OEM-A-1 | M170-A-33 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W48 | OEM-A-2 | M170-A-43 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W49 | OEM-A-3 | M170-A-50 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W50 | OEM-A-14 | M170-A-51 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W51 | OEM-A-15 | M170-A-63 | 0.5 | no route | Injector 5 (INJ5) | — | |
| W52 | OEM-A-16 | M170-A-66 | 0.5 | no route | Injector 6 (INJ6) | — | |
| W53 | OEM-A-5 | M170-A-24 | 0.5 | no route | Fuel pump relay (FLR1) | — | |
| W54 | OEM-F-19 | M170-A-42 | 0.5 | no route | VTEC solenoid front (VT SOLF) | — | |
| W55 | OEM-F-20 | M170-A-57 | 0.5 | no route | VTEC solenoid rear (VT SOLR) | — | |
| W56 | OEM-D-9 | M170-A-26 | 0.5 | no route | MAP sensor | — | |
| W57 | OEM-F-13 | M170-A-18 | 0.5 | no route | Accelerator pedal position 1 (AP1) | — | |
| W58 | OEM-F-12 | M170-A-6 | 0.5 | no route | Accelerator pedal position 2 (AP2) | — | |
| W59 | OEM-D-12 | M170-A-7 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W60 | OEM-D-7 | M170-A-28 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W61 | OEM-F-4 | M170-A-62 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W62 | OEM-D-16 | M170-A-12 | 0.5 | no route | Front secondary O2 signal (O2S FS) | — | |
| W63 | OEM-D-17 | M170-A-36 | 0.5 | no route | Rear secondary O2 signal (O2S RS) | — | |
| W64 | OEM-D-18 | M170-A-35 | 0.5 | no route | Front primary O2 signal (O2S FP) | — | |
| W65 | OEM-D-19 | M170-A-44 | 0.5 | no route | Rear primary O2 signal (O2S RP) | — | |
| W66 | OEM-D-8 | M170-A-38 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W67 | OEM-C-7 | M170-A-52 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W68 | OEM-F-16 | M170-A-53 | 0.5 | no route | Brake switch 1 (BKSW1) | — | |
| W69 | OEM-F-6 | M170-A-13 | 0.5 | no route | Brake switch 2 (BKSW2) | — | |
| W70 | OEM-B-1 | M170-A-22 | 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 (14)
| 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 | NET_FAMILY | OEM-B-5 ↔ M170-A-45 | OEM-B-5 "Cylinder position sensor 2 + (CYP 2P)" [trigger_in] is wired to M170-A-45 "Universal Digital Input 4" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-B-6 ↔ M170-A-46 | OEM-B-6 "Cylinder position sensor 1 + (CYP 1P)" [trigger_in] is wired to M170-A-46 "Universal Digital Input 3" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-B-7 ↔ M170-A-56 | OEM-B-7 "Crank position sensor 2 + (CKP 2P)" [trigger_in] is wired to M170-A-56 "Universal Digital Input 2" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-B-8 ↔ M170-A-49 | OEM-B-8 "Crank position sensor 1 + (CKP 1P)" [trigger_in] is wired to M170-A-49 "Universal Digital Input 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| info | NET_FAMILY | OEM-A-5 ↔ M170-A-24 | OEM-A-5 "Fuel pump relay (FLR1)" [low_side_out] is wired to M170-A-24 "Peak Hold Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-F-19 ↔ M170-A-42 | OEM-F-19 "VTEC solenoid front (VT SOLF)" [low_side_out] is wired to M170-A-42 "Peak Hold Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-F-20 ↔ M170-A-57 | OEM-F-20 "VTEC solenoid rear (VT SOLR)" [low_side_out] is wired to M170-A-57 "Peak Hold Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-F-4 ↔ M170-A-62 | OEM-F-4 "Fuel pump relay 2 (FLR2)" [low_side_out] is wired to M170-A-62 "Peak Hold Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 18 optional OEM pins are not mapped: OEM-A-10 Rear secondary O2 heater (RSO2SHTC); OEM-A-17 EVAP bypass solenoid (2WBS); OEM-A-20 IAB control solenoid (IABCS); OEM-A-21 EVAP purge control solenoid (PCS); OEM-A-22 Front primary O2 heater (FPO2SHTC); OEM-A-23 Rear primary O2 heater (RPO2SHTC); OEM-A-4 EVAP canister vent shut valve (VSV); OEM-A-6 EGR control solenoid (ESOL); OEM-A-7 Malfunction indicator lamp (MIL); OEM-A-8 A/C clutch relay (ACC); OEM-A-9 Front secondary O2 heater (FSO2SHTC); OEM-B-3 VTEC pressure switch rear (VTP SWR); OEM-B-4 Neutral switch (NT SW, M/T); OEM-C-4 Clutch switch (MTCLS, M/T); OEM-C-6 Starter switch (STS); OEM-C-8 Engine speed pulse (NEP); OEM-D-20 EGR valve lift sensor (EGRL); OEM-D-4 K-line diagnostics |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Honda C32B not found in the ECU's docs (M150 engine-speed modes (datasheet 23514) list CBR250RR/F20C/J35A/K20/K20C1/K24AZ7/L15B7 — no C30A/C32B/NSX) - 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-A 8: A/C clutch relay (ACC): no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on MoTeC M170 - OEM-A 10: Rear secondary O2 heater (RSO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-A 22: Front primary O2 heater (FPO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-A 23: Rear primary O2 heater (RPO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-A 9: Front secondary O2 heater (FSO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-A 17: EVAP bypass solenoid (2WBS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-A 20: IAB control solenoid (IABCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-A 21: EVAP purge control solenoid (PCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-A 4: EVAP canister vent shut valve (VSV): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-A 6: EGR control solenoid (ESOL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-A 7: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-C 8: Engine speed pulse (NEP): no free tacho/frequency_out/low_side/ls_hs on MoTeC M170 - OEM-D 20: EGR valve lift sensor (EGRL): no free analog_0_5 on MoTeC M170 - OEM-B 3: VTEC pressure switch rear (VTP SWR): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-B 4: Neutral switch (NT SW, M/T): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-C 4: Clutch switch (MTCLS, M/T): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-C 6: Starter switch (STS): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-D 4: K-line diagnostics: no free k_line on MoTeC M170
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 | MoTeC: M1 ECU Hardware manual (7 Nov 2013) — M130/M150/M170/M190 pinout tables | https://web.archive.org/web/2023id_/https://www.motec.com.au/hessian/uploads/M1_ECU_Hardware_c2517380e4.pdf | — | 2026-10-05 | 03dc5975f739 |