Honda NSX NA1 1991-2005 (C30A) → MoTeC M170 13170 (auto)
Honda NSX NA1 1991-2005 (C30A) — MoTeC — M170
⚠ 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 | none |
| Size of the job | 69 wires · 10 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-25 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | M170-A-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | M170-A-32 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | M170-A-41 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-D-1 | M170-A-54 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-B-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | M170-A-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | M170-A-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | M170-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | M170-A-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | M170-A-21 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-B-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B-12 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-D-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-D-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | M170-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | M170-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-D-18 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-D-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-D-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-5V1-1 | M170-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-15 | M170-A-49 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-13 | M170-A-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-11 | M170-A-46 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-9 | M170-A-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-D-4 | M170-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-D-3 | M170-A-60 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-21 | M170-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A-22 | M170-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-8 | M170-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-6 | M170-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B-4 | M170-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B-3 | M170-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-1 | M170-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-3 | M170-A-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-5 | M170-A-50 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-2 | M170-A-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-4 | M170-A-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-6 | M170-A-66 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-8 | M170-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-15 | M170-A-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-18 | M170-A-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-7 | M170-A-62 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-5-F5 | M170-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-5-F7 | M170-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-10 | M170-A-59 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-12 | M170-A-65 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-11 | M170-A-58 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-13 | M170-A-64 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-D-17 | M170-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-D-11 | M170-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-D-14 | M170-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-D-16 | M170-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-D-13 | M170-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-D-15 | M170-A-38 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-D-12 | M170-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-C-2 | M170-A-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-D-9 | M170-A-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-5-F2 | M170-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-5-F4 | M170-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-B-7 | M170-A-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-C-11 | M170-A-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-C-3 | M170-A-44 | 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-54 | open (OL) | sensor ground must not touch +12 V supply | |
| 4 | M170-A-14 | M170-A-16 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | M170-A-14 | M170-A-23 | open (OL) | power ground must not touch +12 V supply | |
| 6 | M170-A-14 | M170-A-54 | open (OL) | power ground must not touch +12 V supply | |
| 7 | M170-A-23 | M170-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | M170-A-54 | M170-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference |
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 | — | W34 | — | 0.5 | OEM-A-21 | — | — | — |
| 10 | Low Side Ignition 4 | — | W37 | — | 0.5 | OEM-B-6 | — | — | — |
| 11 | Sensor 0V A | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Analogue Voltage Input 5 | — | W62 | — | 0.5 | OEM-D-12 | — | — | — |
| 13 | Universal Digital Input 7 | — | W65 | — | 0.5 | OEM-5-F2 | — | — | — |
| 14 | Battery Negative 1 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Battery Negative 2 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 16 | Sensor 5.0V A | — | W27 | — | 0.5 | SP-5V1-1 | — | — | — |
| 17 | Low Side Ignition 5 | — | W38 | — | 0.5 | OEM-B-4 | — | — | — |
| 18 | Analogue Voltage Input 2 | — | W57 | — | 0.5 | OEM-D-11 | — | — | — |
| 19 | Battery Negative 3 | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 20 | Battery Negative 4 | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Battery Negative 5 | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Universal Digital Input 8 | — | W66 | — | 0.5 | OEM-5-F4 | — | — | — |
| 23 | Battery Positive | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | Peak Hold Injector 5 | — | W46 | — | 0.5 | OEM-A-8 | — | — | — |
| 25 | Low Side Ignition 6 | — | W39 | — | 0.5 | OEM-B-3 | — | — | — |
| 26 | Analogue Voltage Input 1 | — | W56 | — | 0.5 | OEM-D-17 | — | — | — |
| 27 | Sensor 0V B | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Analogue Temperature Input 1 | — | W60 | — | 0.5 | OEM-D-13 | — | — | — |
| 29 | Knock Input 1 | — | W32 | — | 0.5 | OEM-D-4 | — | — | — |
| 3 | Low Side Ignition 7 | — | — | — | — | — | — | — | — |
| 30 | Analogue Temperature Input 3 | — | — | — | — | — | — | — | — |
| 31 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 32 | Battery Positive | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Peak Hold Injector 1 | — | W40 | — | 0.5 | OEM-A-1 | — | — | — |
| 34 | Sensor 5.0V B | — | — | — | — | — | — | — | — |
| 35 | Analogue Voltage Input 7 | — | W68 | — | 0.5 | OEM-C-11 | — | — | — |
| 36 | Analogue Voltage Input 6 | — | W67 | — | 0.5 | OEM-B-7 | — | — | — |
| 37 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 38 | Analogue Temperature Input 2 | — | W61 | — | 0.5 | OEM-D-15 | — | — | — |
| 39 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 4 | Low Side Ignition 3 | — | W36 | — | 0.5 | OEM-B-8 | — | — | — |
| 40 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 41 | Battery Positive | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 42 | Peak Hold Injector 6 | — | W47 | — | 0.5 | OEM-A-15 | — | — | — |
| 43 | Low Side Injector 1 | — | W41 | — | 0.5 | OEM-A-3 | — | — | — |
| 44 | Analogue Voltage Input 8 | — | W69 | — | 0.5 | OEM-C-3 | — | — | — |
| 45 | Universal Digital Input 4 | — | W31 | — | 0.5 | OEM-B-9 | — | — | — |
| 46 | Universal Digital Input 3 | — | W30 | — | 0.5 | OEM-B-11 | — | — | — |
| 47 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 48 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 49 | Universal Digital Input 1 | — | W28 | — | 0.5 | OEM-B-15 | — | — | — |
| 5 | Low Side Ignition 2 | — | W35 | — | 0.5 | OEM-A-22 | — | — | — |
| 50 | Peak Hold Injector 2 | — | W42 | — | 0.5 | OEM-A-5 | — | — | — |
| 51 | Low Side Injector 2 | — | W43 | — | 0.5 | OEM-A-2 | — | — | — |
| 52 | Universal Digital Input 5 | — | W63 | — | 0.5 | OEM-C-2 | — | — | — |
| 53 | Universal Digital Input 6 | — | W64 | — | 0.5 | OEM-D-9 | — | — | — |
| 54 | Battery Backup | — | W6 | — | 0.85 | OEM-D-1 | — | — | — |
| 55 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 56 | Universal Digital Input 2 | — | W29 | — | 0.5 | OEM-B-13 | — | — | — |
| 57 | Peak Hold Injector 7 | — | W48 | — | 0.5 | OEM-A-18 | — | — | — |
| 58 | Half Bridge Output 5 | — | W54 | — | 0.5 | OEM-A-11 | — | — | — |
| 59 | Half Bridge Output 3 | — | W52 | — | 0.5 | OEM-A-10 | — | — | — |
| 6 | Analogue Voltage Input 3 | — | W58 | — | 0.5 | OEM-D-14 | — | — | — |
| 60 | Knock Input 2 | — | W33 | — | 0.5 | OEM-D-3 | — | — | — |
| 61 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 62 | Peak Hold Injector 8 | — | W49 | — | 0.5 | OEM-A-7 | — | — | — |
| 63 | Peak Hold Injector 3 | — | W44 | — | 0.5 | OEM-A-4 | — | — | — |
| 64 | Half Bridge Output 6 | — | W55 | — | 0.5 | OEM-A-13 | — | — | — |
| 65 | Half Bridge Output 4 | — | W53 | — | 0.5 | OEM-A-12 | — | — | — |
| 66 | Peak Hold Injector 4 | — | W45 | — | 0.5 | OEM-A-6 | — | — | — |
| 7 | Analogue Voltage Input 4 | — | W59 | — | 0.5 | OEM-D-16 | — | — | — |
| 8 | Half Bridge Output 2 | — | W51 | — | 0.5 | OEM-5-F7 | — | — | — |
| 9 | Half Bridge Output 1 | — | W50 | — | 0.5 | OEM-5-F5 | — | — | — |
OEM-5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| F2 | Front VTEC pressure switch | — | W65 | — | 0.5 | M170-A-13 | — | — | — |
| F4 | Rear VTEC pressure switch | — | W66 | — | 0.5 | M170-A-22 | — | — | — |
| F5 | Front VTEC solenoid valve | — | W50 | — | 0.5 | M170-A-9 | — | — | — |
| F7 | Rear VTEC solenoid valve | — | W51 | — | 0.5 | M170-A-8 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W40 | — | 0.5 | M170-A-33 | — | — | — |
| 10 | Front O2 sensor heater (HTCNTF) | — | W52 | — | 0.5 | M170-A-59 | — | — | — |
| 11 | EGR control solenoid | — | W54 | — | 0.5 | M170-A-58 | — | — | — |
| 12 | Rear O2 sensor heater (HTCNTR) | — | W53 | — | 0.5 | M170-A-65 | — | — | — |
| 13 | Check engine light (WARN) | — | W55 | — | 0.5 | M170-A-64 | — | — | — |
| 14 | Chamber volume control solenoid (BPS) | — | — | — | — | — | — | — | — |
| 15 | A/C clutch relay (ACC) | — | W47 | — | 0.5 | M170-A-42 | — | — | — |
| 18 | Radiator fan control (FANCNTR) | — | W48 | — | 0.5 | M170-A-57 | — | — | — |
| 2 | Injector 4 | — | W43 | — | 0.5 | M170-A-51 | — | — | — |
| 20 | EVAP purge cut-off solenoid (PGS) | — | — | — | — | — | — | — | — |
| 21 | Ignition coil 1 | — | W34 | — | 0.5 | M170-A-1 | — | — | — |
| 22 | Ignition coil 2 | — | W35 | — | 0.5 | M170-A-5 | — | — | — |
| 23 | Power ground (PG1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Power ground (PG2) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | ECU power (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | Sensor ground (LG1) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 2 | — | W41 | — | 0.5 | M170-A-43 | — | — | — |
| 4 | Injector 5 | — | W44 | — | 0.5 | M170-A-63 | — | — | — |
| 5 | Injector 3 | — | W42 | — | 0.5 | M170-A-50 | — | — | — |
| 6 | Injector 6 | — | W45 | — | 0.5 | M170-A-66 | — | — | — |
| 7 | Main relay | — | W49 | — | 0.5 | M170-A-62 | — | — | — |
| 8 | Fuel pump relay 2 (FLR2) | — | W46 | — | 0.5 | M170-A-24 | — | — | — |
| 9 | Idle air control valve (IACV) | — | — | — | — | — | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | CYL 2M — CYP sensor 2 return | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | CYL 1P — CYP sensor 1 signal | — | W30 | — | 0.5 | M170-A-46 | — | — | — |
| 12 | CYL 1M — CYP sensor 1 return | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | CRNK 2P — TDC sensor signal | — | W29 | — | 0.5 | M170-A-56 | — | — | — |
| 14 | CRNK 2M — TDC sensor return | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CRNK 1P — crank sensor signal | — | W28 | — | 0.5 | M170-A-49 | — | — | — |
| 16 | CRNK 1M — crank sensor return | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Chassis ground (LG2) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Ignition coil 6 | — | W39 | — | 0.5 | M170-A-25 | — | — | — |
| 4 | Ignition coil 5 | — | W38 | — | 0.5 | M170-A-17 | — | — | — |
| 6 | Ignition coil 4 | — | W37 | — | 0.5 | M170-A-10 | — | — | — |
| 7 | Neutral switch (M/T) / gear position (A/T) | — | W67 | — | 0.5 | M170-A-36 | — | — | — |
| 8 | Ignition coil 3 | — | W36 | — | 0.5 | M170-A-4 | — | — | — |
| 9 | CYL 2P — CYP sensor 2 signal | — | W31 | — | 0.5 | M170-A-45 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU power (IGP2) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 10 | Traction control | — | — | — | — | — | — | — | — |
| 11 | Starter switch (STS) | — | W68 | — | 0.5 | M170-A-35 | — | — | — |
| 12 | Traction control | — | — | — | — | — | — | — | — |
| 2 | Vehicle speed sensor (VSS) | — | W63 | — | 0.5 | M170-A-52 | — | — | — |
| 3 | A/C switch (ACS) | — | W69 | — | 0.5 | M170-A-44 | — | — | — |
| 4 | Tachometer output (NEP) | — | — | — | — | — | — | — | — |
| 5 | A/C pressure switch (PDSW) | — | — | — | — | — | — | — | — |
| 6 | Traction control | — | — | — | — | — | — | — | — |
| 7 | Clutch switch (M/T) | — | — | — | — | — | — | — | — |
| 8 | Traction control | — | — | — | — | — | — | — | — |
| 9 | Service check connector (SCS) | — | — | — | — | — | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery backup (VBU) | — | W6 | — | 0.85 | M170-A-54 | — | — | — |
| 11 | Throttle position sensor (TPS) | — | W57 | — | 0.5 | M170-A-18 | — | — | — |
| 12 | EGR lift sensor (EGRL) | — | W62 | — | 0.5 | M170-A-12 | — | — | — |
| 13 | Engine coolant temperature (ECT) | — | W60 | — | 0.5 | M170-A-28 | — | — | — |
| 14 | Primary O2 sensor | — | W58 | — | 0.5 | M170-A-6 | — | — | — |
| 15 | Intake air temperature (IAT) | — | W61 | — | 0.5 | M170-A-38 | — | — | — |
| 16 | Secondary O2 sensor | — | W59 | — | 0.5 | M170-A-7 | — | — | — |
| 17 | MAP sensor | — | W56 | — | 0.5 | M170-A-26 | — | — | — |
| 18 | +5V sensor supply (VCC) | — | W24 | — | 0.5 | SP-5V1-1 | — | — | — |
| 19 | +5V sensor supply (VCC) | — | W25 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | +5V sensor supply (VCC) | — | W26 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor ground (SG) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Sensor ground (SG) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Knock sensor — rear | — | W33 | — | 0.5 | M170-A-60 | — | — | — |
| 4 | Knock sensor — front | — | W32 | — | 0.5 | M170-A-29 | — | — | — |
| 5 | Traction control | — | — | — | — | — | — | — | — |
| 6 | Fuel pump voltage monitor (VFP) | — | — | — | — | — | — | — | — |
| 8 | Ignition timing adjuster (IGADJ) | — | — | — | — | — | — | — | — |
| 9 | Alternator FR signal | — | W64 | — | 0.5 | M170-A-53 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-B-10 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-B-12 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-D-21 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-D-22 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | M170-A-11 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | M170-A-27 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-25 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-C-1 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | M170-A-23 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M170-A-32 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M170-A-41 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W24 | — | 0.5 | OEM-D-18 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-D-19 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-D-20 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | M170-A-16 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-B-2 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | M170-A-14 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | M170-A-15 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | M170-A-19 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | M170-A-20 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | M170-A-21 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-5-F2 | Front VTEC pressure switch | digital_in | M170-A-13 | Universal Digital Input 7 | digital_in | single_source | |
| OEM-5-F4 | Rear VTEC pressure switch | digital_in | M170-A-22 | Universal Digital Input 8 | digital_in | single_source | |
| OEM-5-F5 | Front VTEC solenoid valve | high_side_out | M170-A-9 | Half Bridge Output 1 | hbridge_out | single_source | |
| OEM-5-F7 | Rear VTEC solenoid valve | high_side_out | M170-A-8 | Half Bridge Output 2 | hbridge_out | single_source | |
| OEM-A-1 | Injector 1 | injector_out | M170-A-33 | Peak Hold Injector 1 | injector_out | single_source | |
| OEM-A-10 | Front O2 sensor heater (HTCNTF) | low_side_out | M170-A-59 | Half Bridge Output 3 | hbridge_out | single_source | |
| OEM-A-11 | EGR control solenoid | low_side_out | M170-A-58 | Half Bridge Output 5 | hbridge_out | single_source | |
| OEM-A-12 | Rear O2 sensor heater (HTCNTR) | low_side_out | M170-A-65 | Half Bridge Output 4 | hbridge_out | single_source | |
| OEM-A-13 | Check engine light (WARN) | low_side_out | M170-A-64 | Half Bridge Output 6 | hbridge_out | single_source | |
| OEM-A-14 | Chamber volume control solenoid (BPS) | low_side_out | — | — | — | single_source | |
| OEM-A-15 | A/C clutch relay (ACC) | low_side_out | M170-A-42 | Peak Hold Injector 6 | injector_out | single_source | |
| OEM-A-18 | Radiator fan control (FANCNTR) | low_side_out | M170-A-57 | Peak Hold Injector 7 | injector_out | single_source | |
| OEM-A-2 | Injector 4 | injector_out | M170-A-51 | Low Side Injector 2 | injector_out | single_source | |
| OEM-A-20 | EVAP purge cut-off solenoid (PGS) | low_side_out | — | — | — | single_source | |
| OEM-A-21 | Ignition coil 1 | ignition_out | M170-A-1 | Low Side Ignition 1 | ignition_out | single_source | |
| OEM-A-22 | Ignition coil 2 | ignition_out | M170-A-5 | Low Side Ignition 2 | ignition_out | single_source | |
| OEM-A-23 | 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-24 | 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-25 | ECU power (IGP1) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | single_source | |
| OEM-A-26 | Sensor ground (LG1) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-A-3 | Injector 2 | injector_out | M170-A-43 | Low Side Injector 1 | injector_out | single_source | |
| OEM-A-4 | Injector 5 | injector_out | M170-A-63 | Peak Hold Injector 3 | injector_out | corroborated | |
| OEM-A-5 | Injector 3 | injector_out | M170-A-50 | Peak Hold Injector 2 | injector_out | single_source | |
| OEM-A-6 | Injector 6 | injector_out | M170-A-66 | Peak Hold Injector 4 | injector_out | single_source | |
| OEM-A-7 | Main relay | low_side_out | M170-A-62 | Peak Hold Injector 8 | injector_out | single_source | |
| OEM-A-8 | Fuel pump relay 2 (FLR2) | low_side_out | M170-A-24 | Peak Hold Injector 5 | injector_out | single_source | |
| OEM-A-9 | Idle air control valve (IACV) | low_side_out | — | — | — | single_source | |
| OEM-B-10 | CYL 2M — CYP sensor 2 return | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-11 | CYL 1P — CYP sensor 1 signal | trigger_in | M170-A-46 | Universal Digital Input 3 | digital_in | single_source | |
| OEM-B-12 | CYL 1M — CYP sensor 1 return | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-13 | CRNK 2P — TDC sensor signal | trigger_in | M170-A-56 | Universal Digital Input 2 | digital_in | single_source | |
| OEM-B-14 | CRNK 2M — TDC sensor return | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-15 | CRNK 1P — crank sensor signal | trigger_in | M170-A-49 | Universal Digital Input 1 | digital_in | single_source | |
| OEM-B-16 | CRNK 1M — crank sensor return | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-B-2 | Chassis ground (LG2) | 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-B-3 | Ignition coil 6 | ignition_out | M170-A-25 | Low Side Ignition 6 | ignition_out | single_source | |
| OEM-B-4 | Ignition coil 5 | ignition_out | M170-A-17 | Low Side Ignition 5 | ignition_out | single_source | |
| OEM-B-6 | Ignition coil 4 | ignition_out | M170-A-10 | Low Side Ignition 4 | ignition_out | single_source | |
| OEM-B-7 | Neutral switch (M/T) / gear position (A/T) | digital_in | M170-A-36 | Analogue Voltage Input 6 | analog_in | single_source | |
| OEM-B-8 | Ignition coil 3 | ignition_out | M170-A-4 | Low Side Ignition 3 | ignition_out | single_source | |
| OEM-B-9 | CYL 2P — CYP sensor 2 signal | trigger_in | M170-A-45 | Universal Digital Input 4 | digital_in | single_source | |
| OEM-C-1 | ECU power (IGP2) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | single_source | |
| OEM-C-10 | Traction control | — | — | — | — | single_source | |
| OEM-C-11 | Starter switch (STS) | digital_in | M170-A-35 | Analogue Voltage Input 7 | analog_in | single_source | |
| OEM-C-12 | Traction control | — | — | — | — | single_source | |
| OEM-C-2 | Vehicle speed sensor (VSS) | digital_in | M170-A-52 | Universal Digital Input 5 | digital_in | single_source | |
| OEM-C-3 | A/C switch (ACS) | digital_in | M170-A-44 | Analogue Voltage Input 8 | analog_in | single_source | |
| OEM-C-4 | Tachometer output (NEP) | tacho_out | — | — | — | single_source | |
| OEM-C-5 | A/C pressure switch (PDSW) | digital_in | — | — | — | single_source | |
| OEM-C-6 | Traction control | — | — | — | — | single_source | |
| OEM-C-7 | Clutch switch (M/T) | digital_in | — | — | — | single_source | |
| OEM-C-8 | Traction control | — | — | — | — | single_source | |
| OEM-C-9 | Service check connector (SCS) | digital_in | — | — | — | single_source | |
| OEM-D-1 | Battery backup (VBU) | power_in | M170-A-54 | Battery Backup | power_in | single_source | |
| OEM-D-11 | Throttle position sensor (TPS) | analog_in | M170-A-18 | Analogue Voltage Input 2 | analog_in | single_source | |
| OEM-D-12 | EGR lift sensor (EGRL) | analog_in | M170-A-12 | Analogue Voltage Input 5 | analog_in | single_source | |
| OEM-D-13 | Engine coolant temperature (ECT) | temp_in | M170-A-28 | Analogue Temperature Input 1 | temp_in | single_source | |
| OEM-D-14 | Primary O2 sensor | lambda_nb_in | M170-A-6 | Analogue Voltage Input 3 | analog_in | single_source | |
| OEM-D-15 | Intake air temperature (IAT) | temp_in | M170-A-38 | Analogue Temperature Input 2 | temp_in | single_source | |
| OEM-D-16 | Secondary O2 sensor | lambda_nb_in | M170-A-7 | Analogue Voltage Input 4 | analog_in | single_source | |
| OEM-D-17 | MAP sensor | analog_in | M170-A-26 | Analogue Voltage Input 1 | analog_in | single_source | |
| OEM-D-18 | +5V sensor supply (VCC) | vref | M170-A-16 | Sensor 5.0V A | vref | single_source | |
| OEM-D-19 | +5V sensor supply (VCC) | vref | M170-A-16 | Sensor 5.0V A | vref | single_source | |
| OEM-D-20 | +5V sensor supply (VCC) | vref | M170-A-16 | Sensor 5.0V A | vref | single_source | |
| OEM-D-21 | Sensor ground (SG) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-D-22 | Sensor ground (SG) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-D-3 | Knock sensor — rear | knock_in | M170-A-60 | Knock Input 2 | knock_in | single_source | |
| OEM-D-4 | Knock sensor — front | knock_in | M170-A-29 | Knock Input 1 | knock_in | single_source | |
| OEM-D-5 | Traction control | — | — | — | — | single_source | |
| OEM-D-6 | Fuel pump voltage monitor (VFP) | — | — | — | — | corroborated | |
| OEM-D-8 | Ignition timing adjuster (IGADJ) | digital_in | — | — | — | single_source | |
| OEM-D-9 | Alternator FR signal | digital_in | M170-A-53 | Universal Digital Input 6 | digital_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-25 | SP-14V-1 | 0.85 | no route | ECU power (IGP1) | — | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | no route | ECU power (IGP2) | — | |
| W3 | SP-14V-1 | M170-A-23 | 0.85 | no route | Battery Positive | — | |
| W4 | SP-14V-1 | M170-A-32 | 0.85 | no route | Battery Positive | — | |
| W5 | SP-14V-1 | M170-A-41 | 0.85 | no route | Battery Positive | — | |
| W6 | OEM-D-1 | M170-A-54 | 0.85 | no route | Battery backup (VBU) | — | |
| W7 | OEM-A-23 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W8 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W9 | OEM-B-2 | SP-GND-1 | 0.85 | no route | Chassis ground (LG2) | — | |
| W10 | SP-GND-1 | M170-A-14 | 0.85 | no route | Battery Negative 1 | — | |
| W11 | SP-GND-1 | M170-A-15 | 0.85 | no route | Battery Negative 2 | — | |
| W12 | SP-GND-1 | M170-A-19 | 0.85 | no route | Battery Negative 3 | — | |
| W13 | SP-GND-1 | M170-A-20 | 0.85 | no route | Battery Negative 4 | — | |
| W14 | SP-GND-1 | M170-A-21 | 0.85 | no route | Battery Negative 5 | — | |
| W15 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Sensor ground (LG1) | — | |
| W16 | OEM-B-10 | SP-0V-1 | 0.5 | no route | CYL 2M — CYP sensor 2 return | — | |
| W17 | OEM-B-12 | SP-0V-1 | 0.5 | no route | CYL 1M — CYP sensor 1 return | — | |
| W18 | OEM-B-14 | SP-0V-1 | 0.5 | no route | CRNK 2M — TDC sensor return | — | |
| W19 | OEM-B-16 | SP-0V-1 | 0.5 | no route | CRNK 1M — crank sensor return | — | |
| W20 | OEM-D-21 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W21 | OEM-D-22 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W22 | SP-0V-1 | M170-A-11 | 0.5 | no route | Sensor 0V A | — | |
| W23 | SP-0V-1 | M170-A-27 | 0.5 | no route | Sensor 0V B | — | |
| W24 | OEM-D-18 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W25 | OEM-D-19 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W26 | OEM-D-20 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W27 | SP-5V1-1 | M170-A-16 | 0.5 | no route | Sensor 5.0V A | — | |
| W28 | OEM-B-15 | M170-A-49 | 0.5 | no route | CRNK 1P — crank sensor signal | — | |
| W29 | OEM-B-13 | M170-A-56 | 0.5 | no route | CRNK 2P — TDC sensor signal | — | |
| W30 | OEM-B-11 | M170-A-46 | 0.5 | no route | CYL 1P — CYP sensor 1 signal | — | |
| W31 | OEM-B-9 | M170-A-45 | 0.5 | no route | CYL 2P — CYP sensor 2 signal | — | |
| W32 | OEM-D-4 | M170-A-29 | 0.5 | no route | Knock sensor — front | — | |
| W33 | OEM-D-3 | M170-A-60 | 0.5 | no route | Knock sensor — rear | — | |
| W34 | OEM-A-21 | M170-A-1 | 0.5 | no route | Ignition coil 1 | — | |
| W35 | OEM-A-22 | M170-A-5 | 0.5 | no route | Ignition coil 2 | — | |
| W36 | OEM-B-8 | M170-A-4 | 0.5 | no route | Ignition coil 3 | — | |
| W37 | OEM-B-6 | M170-A-10 | 0.5 | no route | Ignition coil 4 | — | |
| W38 | OEM-B-4 | M170-A-17 | 0.5 | no route | Ignition coil 5 | — | |
| W39 | OEM-B-3 | M170-A-25 | 0.5 | no route | Ignition coil 6 | — | |
| W40 | OEM-A-1 | M170-A-33 | 0.5 | no route | Injector 1 | — | |
| W41 | OEM-A-3 | M170-A-43 | 0.5 | no route | Injector 2 | — | |
| W42 | OEM-A-5 | M170-A-50 | 0.5 | no route | Injector 3 | — | |
| W43 | OEM-A-2 | M170-A-51 | 0.5 | no route | Injector 4 | — | |
| W44 | OEM-A-4 | M170-A-63 | 0.5 | no route | Injector 5 | — | |
| W45 | OEM-A-6 | M170-A-66 | 0.5 | no route | Injector 6 | — | |
| W46 | OEM-A-8 | M170-A-24 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W47 | OEM-A-15 | M170-A-42 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W48 | OEM-A-18 | M170-A-57 | 0.5 | no route | Radiator fan control (FANCNTR) | — | |
| W49 | OEM-A-7 | M170-A-62 | 0.5 | no route | Main relay | — | |
| W50 | OEM-5-F5 | M170-A-9 | 0.5 | no route | Front VTEC solenoid valve | — | |
| W51 | OEM-5-F7 | M170-A-8 | 0.5 | no route | Rear VTEC solenoid valve | — | |
| W52 | OEM-A-10 | M170-A-59 | 0.5 | no route | Front O2 sensor heater (HTCNTF) | — | |
| W53 | OEM-A-12 | M170-A-65 | 0.5 | no route | Rear O2 sensor heater (HTCNTR) | — | |
| W54 | OEM-A-11 | M170-A-58 | 0.5 | no route | EGR control solenoid | — | |
| W55 | OEM-A-13 | M170-A-64 | 0.5 | no route | Check engine light (WARN) | — | |
| W56 | OEM-D-17 | M170-A-26 | 0.5 | no route | MAP sensor | — | |
| W57 | OEM-D-11 | M170-A-18 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W58 | OEM-D-14 | M170-A-6 | 0.5 | no route | Primary O2 sensor | — | |
| W59 | OEM-D-16 | M170-A-7 | 0.5 | no route | Secondary O2 sensor | — | |
| W60 | OEM-D-13 | M170-A-28 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W61 | OEM-D-15 | M170-A-38 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W62 | OEM-D-12 | M170-A-12 | 0.5 | no route | EGR lift sensor (EGRL) | — | |
| W63 | OEM-C-2 | M170-A-52 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W64 | OEM-D-9 | M170-A-53 | 0.5 | no route | Alternator FR signal | — | |
| W65 | OEM-5-F2 | M170-A-13 | 0.5 | no route | Front VTEC pressure switch | — | |
| W66 | OEM-5-F4 | M170-A-22 | 0.5 | no route | Rear VTEC pressure switch | — | |
| W67 | OEM-B-7 | M170-A-36 | 0.5 | no route | Neutral switch (M/T) / gear position (A/T) | — | |
| W68 | OEM-C-11 | M170-A-35 | 0.5 | no route | Starter switch (STS) | — | |
| W69 | OEM-C-3 | M170-A-44 | 0.5 | no route | A/C switch (ACS) | — |
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 (18)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-5-F5 ↔ M170-A-9 | OEM-5-F5 "Front VTEC solenoid valve" [high_side_out] is wired to M170-A-9 "Half Bridge Output 1" [hbridge_out]. A half-bridge can act as a high-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-5-F7 ↔ M170-A-8 | OEM-5-F7 "Rear VTEC solenoid valve" [high_side_out] is wired to M170-A-8 "Half Bridge Output 2" [hbridge_out]. A half-bridge can act as a high-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-A-10 ↔ M170-A-59 | OEM-A-10 "Front O2 sensor heater (HTCNTF)" [low_side_out] is wired to M170-A-59 "Half Bridge Output 3" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-A-11 ↔ M170-A-58 | OEM-A-11 "EGR control solenoid" [low_side_out] is wired to M170-A-58 "Half Bridge Output 5" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-A-12 ↔ M170-A-65 | OEM-A-12 "Rear O2 sensor heater (HTCNTR)" [low_side_out] is wired to M170-A-65 "Half Bridge Output 4" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-A-13 ↔ M170-A-64 | OEM-A-13 "Check engine light (WARN)" [low_side_out] is wired to M170-A-64 "Half Bridge Output 6" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-B-11 ↔ M170-A-46 | OEM-B-11 "CYL 1P — CYP sensor 1 signal" [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-13 ↔ M170-A-56 | OEM-B-13 "CRNK 2P — TDC sensor signal" [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-15 ↔ M170-A-49 | OEM-B-15 "CRNK 1P — crank sensor signal" [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. |
| warn | NET_FAMILY | OEM-B-7 ↔ M170-A-36 | OEM-B-7 "Neutral switch (M/T) / gear position (A/T)" [digital_in] is wired to M170-A-36 "Analogue Voltage Input 6" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-B-9 ↔ M170-A-45 | OEM-B-9 "CYL 2P — CYP sensor 2 signal" [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-C-11 ↔ M170-A-35 | OEM-C-11 "Starter switch (STS)" [digital_in] is wired to M170-A-35 "Analogue Voltage Input 7" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C-3 ↔ M170-A-44 | OEM-C-3 "A/C switch (ACS)" [digital_in] is wired to M170-A-44 "Analogue Voltage Input 8" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| info | NET_FAMILY | OEM-A-15 ↔ M170-A-42 | OEM-A-15 "A/C clutch relay (ACC)" [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-A-18 ↔ M170-A-57 | OEM-A-18 "Radiator fan control (FANCNTR)" [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-A-7 ↔ M170-A-62 | OEM-A-7 "Main relay" [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 | NET_FAMILY | OEM-A-8 ↔ M170-A-24 | OEM-A-8 "Fuel pump relay 2 (FLR2)" [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 | UNMAPPED | OEM | 14 optional OEM pins are not mapped: OEM-A-14 Chamber volume control solenoid (BPS); OEM-A-20 EVAP purge cut-off solenoid (PGS); OEM-A-9 Idle air control valve (IACV); OEM-C-10 Traction control; OEM-C-12 Traction control; OEM-C-4 Tachometer output (NEP); OEM-C-5 A/C pressure switch (PDSW); OEM-C-6 Traction control; OEM-C-7 Clutch switch (M/T); OEM-C-8 Traction control; OEM-C-9 Service check connector (SCS); OEM-D-5 Traction control; OEM-D-6 Fuel pump voltage monitor (VFP); OEM-D-8 Ignition timing adjuster (IGADJ) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Honda C30A 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) Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-A 14: Chamber volume control solenoid (BPS): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A 20: EVAP purge cut-off solenoid (PGS): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A 9: Idle air control valve (IACV): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-C 4: Tachometer output (NEP): no free tacho/frequency_out/low_side/ls_hs on MoTeC M170 - OEM-C 5: A/C pressure switch (PDSW): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-C 7: Clutch switch (M/T): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-C 9: Service check connector (SCS): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-D 8: Ignition timing adjuster (IGADJ): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-C 10: Traction control: not classified in the library; wire by hand - OEM-C 12: Traction control: not classified in the library; wire by hand - OEM-C 6: Traction control: not classified in the library; wire by hand - OEM-C 8: Traction control: not classified in the library; wire by hand - OEM-D 5: Traction control: not classified in the library; wire by hand - OEM-D 6: Fuel pump voltage monitor (VFP): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | AEM EMS 30-1042 (Series 1) plug-and-play install manual — 1991-94 NSX | https://fancy-craft.firebaseapp.com/NSX/report/ecu/EMS_-_30-1042.pdf | archive | 2026-10-05 | 0cad10bc64b5 |
| 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 |
| 3 | vendor_doc | dodo-upgrades: Honda OBD1 V6 ECU pinout | https://dodo-upgrades.nl/index.php/obd1-v6-pinouts/ | archive | 2026-10-05 | f9539af28904 |