AP1 2000–03 (F20C) → MoTeC M170 13170 (auto)
AP1 2000–03 (F20C) — MoTeC — M170
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-08
Before you start
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 63 wires · 8 connectors · 4 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-B-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-B-9 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | 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-B-21 | M170-A-54 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-B-10 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-B-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-B-20 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-B-22 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | M170-A-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | M170-A-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | M170-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | M170-A-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-GND-1 | M170-A-21 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-C-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-C-31 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-C-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | M170-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | M170-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C-19 | M170-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-C-28 | M170-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-C-8 | M170-A-49 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-C-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-C-20 | M170-A-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-C-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-C-29 | M170-A-46 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-C-4 | M170-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-C-12 | M170-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-C-13 | M170-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-C-14 | M170-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-11 | M170-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-3 | M170-A-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-4 | M170-A-50 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-5 | M170-A-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-15 | M170-A-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-16 | M170-A-66 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-17 | M170-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-20 | M170-A-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-28 | M170-A-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-B-12 | M170-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-C-1 | M170-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-C-11 | M170-A-59 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-23 | M170-A-62 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-1 | M170-A-65 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-12 | M170-A-58 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-18 | M170-A-64 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-C-17 | M170-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-C-27 | M170-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-23 | M170-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-C-15 | M170-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-C-16 | M170-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-C-26 | M170-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-C-25 | M170-A-38 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A-29 | M170-A-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A-30 | M170-A-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-C-24 | M170-A-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A-9 | M170-A-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-C-5 | M170-A-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-A-24 | M170-A-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-A-26 | M170-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-A-27 | 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-23 | M170-A-14 | open (OL) | +12 V supply must not touch power ground | |
| 3 | M170-A-54 | M170-A-11 | open (OL) | +12 V supply must not touch sensor ground | |
| 4 | M170-A-11 | M170-A-16 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 5 | M170-A-11 | M170-A-34 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 6 | M170-A-14 | M170-A-16 | open (OL) | power ground must not touch 5 V sensor reference | |
| 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 |
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 | — | W29 | — | 0.5 | OEM-C-4 | — | — | — |
| 10 | Low Side Ignition 4 | — | W32 | — | 0.5 | OEM-C-14 | — | — | — |
| 11 | Sensor 0V A | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Analogue Voltage Input 5 | — | W53 | — | 0.5 | OEM-C-16 | — | — | — |
| 13 | Universal Digital Input 7 | — | W62 | — | 0.5 | OEM-A-26 | — | — | — |
| 14 | Battery Negative 1 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Battery Negative 2 | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 16 | Sensor 5.0V A | — | W22 | — | 0.5 | OEM-C-19 | — | — | — |
| 17 | Low Side Ignition 5 | — | — | — | — | — | — | — | — |
| 18 | Analogue Voltage Input 2 | — | W50 | — | 0.5 | OEM-C-27 | — | — | — |
| 19 | Battery Negative 3 | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 20 | Battery Negative 4 | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Battery Negative 5 | — | W15 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Universal Digital Input 8 | — | W63 | — | 0.5 | OEM-A-27 | — | — | — |
| 23 | Battery Positive | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | Peak Hold Injector 5 | — | W39 | — | 0.5 | OEM-A-17 | — | — | — |
| 25 | Low Side Ignition 6 | — | — | — | — | — | — | — | — |
| 26 | Analogue Voltage Input 1 | — | W49 | — | 0.5 | OEM-C-17 | — | — | — |
| 27 | Sensor 0V B | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Analogue Temperature Input 1 | — | W54 | — | 0.5 | OEM-C-26 | — | — | — |
| 29 | Knock Input 1 | — | — | — | — | — | — | — | — |
| 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 | — | W33 | — | 0.5 | OEM-B-11 | — | — | — |
| 34 | Sensor 5.0V B | — | W23 | — | 0.5 | OEM-C-28 | — | — | — |
| 35 | Analogue Voltage Input 7 | — | W57 | — | 0.5 | OEM-A-30 | — | — | — |
| 36 | Analogue Voltage Input 6 | — | W56 | — | 0.5 | OEM-A-29 | — | — | — |
| 37 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 38 | Analogue Temperature Input 2 | — | W55 | — | 0.5 | OEM-C-25 | — | — | — |
| 39 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 4 | Low Side Ignition 3 | — | W31 | — | 0.5 | OEM-C-13 | — | — | — |
| 40 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 41 | Battery Positive | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 42 | Peak Hold Injector 6 | — | W40 | — | 0.5 | OEM-A-20 | — | — | — |
| 43 | Low Side Injector 1 | — | W34 | — | 0.5 | OEM-B-3 | — | — | — |
| 44 | Analogue Voltage Input 8 | — | W58 | — | 0.5 | OEM-C-24 | — | — | — |
| 45 | Universal Digital Input 4 | — | W59 | — | 0.5 | OEM-A-9 | — | — | — |
| 46 | Universal Digital Input 3 | — | W28 | — | 0.5 | OEM-C-29 | — | — | — |
| 47 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 48 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 49 | Universal Digital Input 1 | — | W24 | — | 0.5 | OEM-C-8 | — | — | — |
| 5 | Low Side Ignition 2 | — | W30 | — | 0.5 | OEM-C-12 | — | — | — |
| 50 | Peak Hold Injector 2 | — | W35 | — | 0.5 | OEM-B-4 | — | — | — |
| 51 | Low Side Injector 2 | — | W36 | — | 0.5 | OEM-B-5 | — | — | — |
| 52 | Universal Digital Input 5 | — | W60 | — | 0.5 | OEM-C-5 | — | — | — |
| 53 | Universal Digital Input 6 | — | W61 | — | 0.5 | OEM-A-24 | — | — | — |
| 54 | Battery Backup | — | W6 | — | 0.85 | OEM-B-21 | — | — | — |
| 55 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 56 | Universal Digital Input 2 | — | W26 | — | 0.5 | OEM-C-20 | — | — | — |
| 57 | Peak Hold Injector 7 | — | W41 | — | 0.5 | OEM-A-28 | — | — | — |
| 58 | Half Bridge Output 5 | — | W47 | — | 0.5 | OEM-A-12 | — | — | — |
| 59 | Half Bridge Output 3 | — | W44 | — | 0.5 | OEM-C-11 | — | — | — |
| 6 | Analogue Voltage Input 3 | — | W51 | — | 0.5 | OEM-A-23 | — | — | — |
| 60 | Knock Input 2 | — | — | — | — | — | — | — | — |
| 61 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 62 | Peak Hold Injector 8 | — | W45 | — | 0.5 | OEM-B-23 | — | — | — |
| 63 | Peak Hold Injector 3 | — | W37 | — | 0.5 | OEM-A-15 | — | — | — |
| 64 | Half Bridge Output 6 | — | W48 | — | 0.5 | OEM-A-18 | — | — | — |
| 65 | Half Bridge Output 4 | — | W46 | — | 0.5 | OEM-A-1 | — | — | — |
| 66 | Peak Hold Injector 4 | — | W38 | — | 0.5 | OEM-A-16 | — | — | — |
| 7 | Analogue Voltage Input 4 | — | W52 | — | 0.5 | OEM-C-15 | — | — | — |
| 8 | Half Bridge Output 2 | — | W43 | — | 0.5 | OEM-C-1 | — | — | — |
| 9 | Half Bridge Output 1 | — | W42 | — | 0.5 | OEM-B-12 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coolant temp gauge drive | — | W46 | — | 0.5 | M170-A-65 | — | — | — |
| 2 | Air control valve solenoid | — | — | — | — | — | — | — | — |
| 3 | Evap bypass solenoid | — | — | — | — | — | — | — | — |
| 4 | Evap canister vent shut valve | — | — | — | — | — | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | Evap canister purge valve | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Vehicle speed sensor | — | W59 | — | 0.5 | M170-A-45 | — | — | — |
| 10 | Service check signal | — | — | — | — | — | — | — | — |
| 11 | NC | — | — | — | — | — | — | — | — |
| 12 | Immobilizer indicator light | — | W47 | — | 0.5 | M170-A-58 | — | — | — |
| 13 | Immobilizer enable signal | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | Fuel pump relay (USDM) | — | W37 | — | 0.5 | M170-A-63 | — | — | — |
| 16 | Fuel pump relay (JDM) | — | W38 | — | 0.5 | M170-A-66 | — | — | — |
| 17 | A/C clutch relay | — | W39 | — | 0.5 | M170-A-24 | — | — | — |
| 18 | Check engine light (MIL) | — | W48 | — | 0.5 | M170-A-64 | — | — | — |
| 19 | Tacho output | — | — | — | — | — | — | — | — |
| 20 | Radiator fan relay | — | W40 | — | 0.5 | M170-A-42 | — | — | — |
| 21 | K-Line | — | — | — | — | — | — | — | — |
| 22 | NC | — | — | — | — | — | — | — | — |
| 23 | Secondary O2 sensor | — | W51 | — | 0.5 | M170-A-6 | — | — | — |
| 24 | Starter switch signal | — | W61 | — | 0.5 | M170-A-53 | — | — | — |
| 25 | Immobilizer code | — | — | — | — | — | — | — | — |
| 26 | Power steering load detect | — | W62 | — | 0.5 | M170-A-13 | — | — | — |
| 27 | A/C switch (request) | — | W63 | — | 0.5 | M170-A-22 | — | — | — |
| 28 | Air pump relay | — | W41 | — | 0.5 | M170-A-57 | — | — | — |
| 29 | Fuel tank pressure sensor | — | W56 | — | 0.5 | M170-A-36 | — | — | — |
| 30 | Electrical load detector | — | W57 | — | 0.5 | M170-A-35 | — | — | — |
| 31 | NC | — | — | — | — | — | — | — | — |
| 32 | Brake switch | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Power source 1 (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Power ground 1 | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Injector 2 | — | W34 | — | 0.5 | M170-A-43 | — | — | — |
| 4 | Injector 3 | — | W35 | — | 0.5 | M170-A-50 | — | — | — |
| 5 | Injector 4 | — | W36 | — | 0.5 | M170-A-51 | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Power source 2 (main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 10 | Power ground 2 | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Injector 1 | — | W33 | — | 0.5 | M170-A-33 | — | — | — |
| 12 | VTEC solenoid | — | W42 | — | 0.5 | M170-A-9 | — | — | — |
| 13 | NC | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | NC | — | — | — | — | — | — | — | — |
| 17 | NC | — | — | — | — | — | — | — | — |
| 18 | NC | — | — | — | — | — | — | — | — |
| 19 | NC | — | — | — | — | — | — | — | — |
| 20 | Ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Backup power (battery constant) | — | W6 | — | 0.85 | M170-A-54 | — | — | — |
| 22 | Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 23 | Idle air control valve | — | W45 | — | 0.5 | M170-A-62 | — | — | — |
| 24 | NC | — | — | — | — | — | — | — | — |
| 25 | NC | — | — | — | — | — | — | — | — |
OEM-C
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Primary O2 heater | — | W43 | — | 0.5 | M170-A-8 | — | — | — |
| 2 | Alternator control | — | — | — | — | — | — | — | — |
| 3 | Knock sensor | — | — | — | — | — | — | — | — |
| 4 | Ignition coil 1 | — | W29 | — | 0.5 | M170-A-1 | — | — | — |
| 5 | Alternator FR signal | — | W60 | — | 0.5 | M170-A-52 | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | Sensor ground 1 | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | Crank sensor + (CKP+) | — | W24 | — | 0.5 | M170-A-49 | — | — | — |
| 9 | Crank sensor − (CKP−) | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 10 | VTEC pressure switch | — | — | — | — | — | — | — | — |
| 11 | Secondary O2 heater control | — | W44 | — | 0.5 | M170-A-59 | — | — | — |
| 12 | Ignition coil 2 | — | W30 | — | 0.5 | M170-A-5 | — | — | — |
| 13 | Ignition coil 3 | — | W31 | — | 0.5 | M170-A-4 | — | — | — |
| 14 | Ignition coil 4 | — | W32 | — | 0.5 | M170-A-10 | — | — | — |
| 15 | Secondary O2 sensor | — | W52 | — | 0.5 | M170-A-7 | — | — | — |
| 16 | Primary O2 sensor | — | W53 | — | 0.5 | M170-A-12 | — | — | — |
| 17 | MAP sensor | — | W49 | — | 0.5 | M170-A-26 | — | — | — |
| 18 | Sensor ground 2 | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor 5V supply 1 (MAP) | — | W22 | — | 0.5 | M170-A-16 | — | — | — |
| 20 | Cam (TDC1) sensor + | — | W26 | — | 0.5 | M170-A-56 | — | — | — |
| 21 | Cam (TDC1) sensor − | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Knock sensor | — | — | — | — | — | — | — | — |
| 23 | NC | — | — | — | — | — | — | — | — |
| 24 | Air pump electric current sensor | — | W58 | — | 0.5 | M170-A-44 | — | — | — |
| 25 | Intake air temp sensor | — | W55 | — | 0.5 | M170-A-38 | — | — | — |
| 26 | Coolant temp sensor | — | W54 | — | 0.5 | M170-A-28 | — | — | — |
| 27 | Throttle position sensor | — | W50 | — | 0.5 | M170-A-18 | — | — | — |
| 28 | Sensor 5V supply 2 | — | W23 | — | 0.5 | M170-A-34 | — | — | — |
| 29 | Cam (TDC2) sensor + | — | W28 | — | 0.5 | M170-A-46 | — | — | — |
| 30 | Cam (TDC2) sensor − | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Timing ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | NC | — | — | — | — | — | — | — | — |
| 2 | NC | — | — | — | — | — | — | — | — |
| 3 | NC | — | — | — | — | — | — | — | — |
| 4 | NC | — | — | — | — | — | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | NC | — | — | — | — | — | — | — | — |
| 10 | NC | — | — | — | — | — | — | — | — |
| 11 | NC | — | — | — | — | — | — | — | — |
| 12 | NC | — | — | — | — | — | — | — | — |
| 13 | NC | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | NC | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W27 | — | 0.5 | OEM-C-21 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-C-18 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-C-30 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-C-31 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-C-7 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | M170-A-11 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | M170-A-27 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-C-9 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-B-1 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-B-9 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | M170-A-23 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M170-A-32 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M170-A-41 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-B-10 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-B-2 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-B-20 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-B-22 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | M170-A-14 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | M170-A-15 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | M170-A-19 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | M170-A-20 | — | — | — |
| 1 | — | — | W15 | — | 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 | Coolant temp gauge drive | low_side_out | M170-A-65 | Half Bridge Output 4 | hbridge_out | corroborated | |
| OEM-A-10 | Service check signal | — | — | — | — | single_source | |
| OEM-A-11 | NC | — | — | — | — | unverified | |
| OEM-A-12 | Immobilizer indicator light | low_side_out | M170-A-58 | Half Bridge Output 5 | hbridge_out | single_source | |
| OEM-A-13 | Immobilizer enable signal | — | — | — | — | single_source | |
| OEM-A-14 | NC | — | — | — | — | unverified | |
| OEM-A-15 | Fuel pump relay (USDM) | low_side_out | M170-A-63 | Peak Hold Injector 3 | injector_out | corroborated | |
| OEM-A-16 | Fuel pump relay (JDM) | low_side_out | M170-A-66 | Peak Hold Injector 4 | injector_out | single_source | |
| OEM-A-17 | A/C clutch relay | low_side_out | M170-A-24 | Peak Hold Injector 5 | injector_out | corroborated | |
| OEM-A-18 | Check engine light (MIL) | low_side_out | M170-A-64 | Half Bridge Output 6 | hbridge_out | corroborated | |
| OEM-A-19 | Tacho output | tacho_out | — | — | — | corroborated | |
| OEM-A-2 | Air control valve solenoid | low_side_out | — | — | — | single_source | |
| OEM-A-20 | Radiator fan relay | low_side_out | M170-A-42 | Peak Hold Injector 6 | injector_out | corroborated | |
| OEM-A-21 | K-Line | serial | — | — | — | single_source | |
| OEM-A-22 | NC | — | — | — | — | unverified | |
| OEM-A-23 | Secondary O2 sensor | lambda_nb_in | M170-A-6 | Analogue Voltage Input 3 | analog_in | single_source | |
| OEM-A-24 | Starter switch signal | digital_in | M170-A-53 | Universal Digital Input 6 | digital_in | corroborated | |
| OEM-A-25 | Immobilizer code | — | — | — | — | single_source | |
| OEM-A-26 | Power steering load detect | digital_in | M170-A-13 | Universal Digital Input 7 | digital_in | corroborated | |
| OEM-A-27 | A/C switch (request) | digital_in | M170-A-22 | Universal Digital Input 8 | digital_in | corroborated | |
| OEM-A-28 | Air pump relay | low_side_out | M170-A-57 | Peak Hold Injector 7 | injector_out | corroborated | |
| OEM-A-29 | Fuel tank pressure sensor | analog_in | M170-A-36 | Analogue Voltage Input 6 | analog_in | corroborated | |
| OEM-A-3 | Evap bypass solenoid | low_side_out | — | — | — | single_source | |
| OEM-A-30 | Electrical load detector | analog_in | M170-A-35 | Analogue Voltage Input 7 | analog_in | corroborated | |
| OEM-A-31 | NC | — | — | — | — | unverified | |
| OEM-A-32 | Brake switch | digital_in | — | — | — | corroborated | |
| OEM-A-4 | Evap canister vent shut valve | low_side_out | — | — | — | single_source | |
| OEM-A-5 | NC | — | — | — | — | unverified | |
| OEM-A-6 | Evap canister purge valve | low_side_out | — | — | — | single_source | |
| OEM-A-7 | NC | — | — | — | — | unverified | |
| OEM-A-8 | NC | — | — | — | — | unverified | |
| OEM-A-9 | Vehicle speed sensor | digital_in | M170-A-45 | Universal Digital Input 4 | digital_in | corroborated | |
| OEM-B-1 | Power source 1 (main relay) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | corroborated | |
| OEM-B-10 | Power ground 2 | 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-11 | Injector 1 | injector_out | M170-A-33 | Peak Hold Injector 1 | injector_out | corroborated | |
| OEM-B-12 | VTEC solenoid | high_side_out | M170-A-9 | Half Bridge Output 1 | hbridge_out | corroborated | |
| OEM-B-13 | NC | — | — | — | — | unverified | |
| OEM-B-14 | NC | — | — | — | — | unverified | |
| OEM-B-15 | NC | — | — | — | — | unverified | |
| OEM-B-16 | NC | — | — | — | — | unverified | |
| OEM-B-17 | NC | — | — | — | — | unverified | |
| OEM-B-18 | NC | — | — | — | — | unverified | |
| OEM-B-19 | NC | — | — | — | — | unverified | |
| OEM-B-2 | Power ground 1 | ground | 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 | corroborated | |
| OEM-B-20 | Ground | 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-21 | Backup power (battery constant) | power_in | M170-A-54 | Battery Backup | power_in | single_source | |
| OEM-B-22 | Ground | 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-23 | Idle air control valve | low_side_out | M170-A-62 | Peak Hold Injector 8 | injector_out | corroborated | |
| OEM-B-24 | NC | — | — | — | — | unverified | |
| OEM-B-25 | NC | — | — | — | — | unverified | |
| OEM-B-3 | Injector 2 | injector_out | M170-A-43 | Low Side Injector 1 | injector_out | corroborated | |
| OEM-B-4 | Injector 3 | injector_out | M170-A-50 | Peak Hold Injector 2 | injector_out | corroborated | |
| OEM-B-5 | Injector 4 | injector_out | M170-A-51 | Low Side Injector 2 | injector_out | corroborated | |
| OEM-B-6 | NC | — | — | — | — | unverified | |
| OEM-B-7 | NC | — | — | — | — | unverified | |
| OEM-B-8 | NC | — | — | — | — | unverified | |
| OEM-B-9 | Power source 2 (main relay) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | corroborated | |
| OEM-C-1 | Primary O2 heater | low_side_out | M170-A-8 | Half Bridge Output 2 | hbridge_out | corroborated | |
| OEM-C-10 | VTEC pressure switch | digital_in | — | — | — | corroborated | |
| OEM-C-11 | Secondary O2 heater control | low_side_out | M170-A-59 | Half Bridge Output 3 | hbridge_out | single_source | |
| OEM-C-12 | Ignition coil 2 | ignition_out | M170-A-5 | Low Side Ignition 2 | ignition_out | corroborated | |
| OEM-C-13 | Ignition coil 3 | ignition_out | M170-A-4 | Low Side Ignition 3 | ignition_out | corroborated | |
| OEM-C-14 | Ignition coil 4 | ignition_out | M170-A-10 | Low Side Ignition 4 | ignition_out | corroborated | |
| OEM-C-15 | Secondary O2 sensor | lambda_nb_in | M170-A-7 | Analogue Voltage Input 4 | analog_in | corroborated | |
| OEM-C-16 | Primary O2 sensor | lambda_nb_in | M170-A-12 | Analogue Voltage Input 5 | analog_in | corroborated | |
| OEM-C-17 | MAP sensor | analog_in | M170-A-26 | Analogue Voltage Input 1 | analog_in | corroborated | |
| OEM-C-18 | Sensor ground 2 | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-C-19 | Sensor 5V supply 1 (MAP) | vref | M170-A-16 | Sensor 5.0V A | vref | corroborated | |
| OEM-C-2 | Alternator control | low_side_out | — | — | — | single_source | |
| OEM-C-20 | Cam (TDC1) sensor + | trigger_in | M170-A-56 | Universal Digital Input 2 | digital_in | corroborated | |
| OEM-C-21 | Cam (TDC1) sensor − | trigger_in | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-C-22 | Knock sensor | knock_in | — | — | — | conflict | |
| OEM-C-23 | NC | — | — | — | — | unverified | |
| OEM-C-24 | Air pump electric current sensor | analog_in | M170-A-44 | Analogue Voltage Input 8 | analog_in | single_source | |
| OEM-C-25 | Intake air temp sensor | temp_in | M170-A-38 | Analogue Temperature Input 2 | temp_in | corroborated | |
| OEM-C-26 | Coolant temp sensor | temp_in | M170-A-28 | Analogue Temperature Input 1 | temp_in | corroborated | |
| OEM-C-27 | Throttle position sensor | analog_in | M170-A-18 | Analogue Voltage Input 2 | analog_in | corroborated | |
| OEM-C-28 | Sensor 5V supply 2 | vref | M170-A-34 | Sensor 5.0V B | vref | corroborated | |
| OEM-C-29 | Cam (TDC2) sensor + | trigger_in | M170-A-46 | Universal Digital Input 3 | digital_in | corroborated | |
| OEM-C-3 | Knock sensor | knock_in | — | — | — | conflict | |
| OEM-C-30 | Cam (TDC2) sensor − | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-C-31 | Timing ground | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | single_source | |
| OEM-C-4 | Ignition coil 1 | ignition_out | M170-A-1 | Low Side Ignition 1 | ignition_out | corroborated | |
| OEM-C-5 | Alternator FR signal | digital_in | M170-A-52 | Universal Digital Input 5 | digital_in | single_source | |
| OEM-C-6 | NC | — | — | — | — | unverified | |
| OEM-C-7 | Sensor ground 1 | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-C-8 | Crank sensor + (CKP+) | trigger_in | M170-A-49 | Universal Digital Input 1 | digital_in | corroborated | |
| OEM-C-9 | Crank sensor − (CKP−) | trigger_in | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-D-1 | NC | — | — | — | — | unverified | |
| OEM-D-10 | NC | — | — | — | — | unverified | |
| OEM-D-11 | NC | — | — | — | — | unverified | |
| OEM-D-12 | NC | — | — | — | — | unverified | |
| OEM-D-13 | NC | — | — | — | — | unverified | |
| OEM-D-14 | NC | — | — | — | — | unverified | |
| OEM-D-15 | NC | — | — | — | — | unverified | |
| OEM-D-16 | NC | — | — | — | — | unverified | |
| OEM-D-2 | NC | — | — | — | — | unverified | |
| OEM-D-3 | NC | — | — | — | — | unverified | |
| OEM-D-4 | NC | — | — | — | — | unverified | |
| OEM-D-5 | NC | — | — | — | — | unverified | |
| OEM-D-6 | NC | — | — | — | — | unverified | |
| OEM-D-7 | NC | — | — | — | — | unverified | |
| OEM-D-8 | NC | — | — | — | — | unverified | |
| OEM-D-9 | NC | — | — | — | — | unverified |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-B-1 | SP-14V-1 | 0.85 | no route | Power source 1 (main relay) | — | |
| W2 | OEM-B-9 | SP-14V-1 | 0.85 | no route | Power source 2 (main relay) | — | |
| W3 | SP-14V-1 | 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-B-21 | M170-A-54 | 0.85 | no route | Backup power (battery constant) | — | |
| W7 | OEM-B-10 | SP-GND-1 | 0.85 | no route | Power ground 2 | — | |
| W8 | OEM-B-2 | SP-GND-1 | 0.85 | no route | Power ground 1 | — | |
| W9 | OEM-B-20 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W10 | OEM-B-22 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W11 | SP-GND-1 | M170-A-14 | 0.85 | no route | Battery Negative 1 | — | |
| W12 | SP-GND-1 | M170-A-15 | 0.85 | no route | Battery Negative 2 | — | |
| W13 | SP-GND-1 | M170-A-19 | 0.85 | no route | Battery Negative 3 | — | |
| W14 | SP-GND-1 | M170-A-20 | 0.85 | no route | Battery Negative 4 | — | |
| W15 | SP-GND-1 | M170-A-21 | 0.85 | no route | Battery Negative 5 | — | |
| W16 | OEM-C-18 | SP-0V-1 | 0.5 | no route | Sensor ground 2 | — | |
| W17 | OEM-C-30 | SP-0V-1 | 0.5 | no route | Cam (TDC2) sensor − | — | |
| W18 | OEM-C-31 | SP-0V-1 | 0.5 | no route | Timing ground | — | |
| W19 | OEM-C-7 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W20 | SP-0V-1 | M170-A-11 | 0.5 | no route | Sensor 0V A | — | |
| W21 | SP-0V-1 | M170-A-27 | 0.5 | no route | Sensor 0V B | — | |
| W22 | OEM-C-19 | M170-A-16 | 0.5 | no route | Sensor 5V supply 1 (MAP) | — | |
| W23 | OEM-C-28 | M170-A-34 | 0.5 | no route | Sensor 5V supply 2 | — | |
| W24 | OEM-C-8 | M170-A-49 | 0.5 | no route | Crank sensor + (CKP+) | — | |
| W25 | OEM-C-9 | SP-0V-1 | 0.5 | no route | Crank sensor − (CKP−) | — | |
| W26 | OEM-C-20 | M170-A-56 | 0.5 | no route | Cam (TDC1) sensor + | — | |
| W27 | OEM-C-21 | SP-0V-1 | 0.5 | no route | Cam (TDC1) sensor − | — | |
| W28 | OEM-C-29 | M170-A-46 | 0.5 | no route | Cam (TDC2) sensor + | — | |
| W29 | OEM-C-4 | M170-A-1 | 0.5 | no route | Ignition coil 1 | — | |
| W30 | OEM-C-12 | M170-A-5 | 0.5 | no route | Ignition coil 2 | — | |
| W31 | OEM-C-13 | M170-A-4 | 0.5 | no route | Ignition coil 3 | — | |
| W32 | OEM-C-14 | M170-A-10 | 0.5 | no route | Ignition coil 4 | — | |
| W33 | OEM-B-11 | M170-A-33 | 0.5 | no route | Injector 1 | — | |
| W34 | OEM-B-3 | M170-A-43 | 0.5 | no route | Injector 2 | — | |
| W35 | OEM-B-4 | M170-A-50 | 0.5 | no route | Injector 3 | — | |
| W36 | OEM-B-5 | M170-A-51 | 0.5 | no route | Injector 4 | — | |
| W37 | OEM-A-15 | M170-A-63 | 0.5 | no route | Fuel pump relay (USDM) | — | |
| W38 | OEM-A-16 | M170-A-66 | 0.5 | no route | Fuel pump relay (JDM) | — | |
| W39 | OEM-A-17 | M170-A-24 | 0.5 | no route | A/C clutch relay | — | |
| W40 | OEM-A-20 | M170-A-42 | 0.5 | no route | Radiator fan relay | — | |
| W41 | OEM-A-28 | M170-A-57 | 0.5 | no route | Air pump relay | — | |
| W42 | OEM-B-12 | M170-A-9 | 0.5 | no route | VTEC solenoid | — | |
| W43 | OEM-C-1 | M170-A-8 | 0.5 | no route | Primary O2 heater | — | |
| W44 | OEM-C-11 | M170-A-59 | 0.5 | no route | Secondary O2 heater control | — | |
| W45 | OEM-B-23 | M170-A-62 | 0.5 | no route | Idle air control valve | — | |
| W46 | OEM-A-1 | M170-A-65 | 0.5 | no route | Coolant temp gauge drive | — | |
| W47 | OEM-A-12 | M170-A-58 | 0.5 | no route | Immobilizer indicator light | — | |
| W48 | OEM-A-18 | M170-A-64 | 0.5 | no route | Check engine light (MIL) | — | |
| W49 | OEM-C-17 | M170-A-26 | 0.5 | no route | MAP sensor | — | |
| W50 | OEM-C-27 | M170-A-18 | 0.5 | no route | Throttle position sensor | — | |
| W51 | OEM-A-23 | M170-A-6 | 0.5 | no route | Secondary O2 sensor | — | |
| W52 | OEM-C-15 | M170-A-7 | 0.5 | no route | Secondary O2 sensor | — | |
| W53 | OEM-C-16 | M170-A-12 | 0.5 | no route | Primary O2 sensor | — | |
| W54 | OEM-C-26 | M170-A-28 | 0.5 | no route | Coolant temp sensor | — | |
| W55 | OEM-C-25 | M170-A-38 | 0.5 | no route | Intake air temp sensor | — | |
| W56 | OEM-A-29 | M170-A-36 | 0.5 | no route | Fuel tank pressure sensor | — | |
| W57 | OEM-A-30 | M170-A-35 | 0.5 | no route | Electrical load detector | — | |
| W58 | OEM-C-24 | M170-A-44 | 0.5 | no route | Air pump electric current sensor | — | |
| W59 | OEM-A-9 | M170-A-45 | 0.5 | no route | Vehicle speed sensor | — | |
| W60 | OEM-C-5 | M170-A-52 | 0.5 | no route | Alternator FR signal | — | |
| W61 | OEM-A-24 | M170-A-53 | 0.5 | no route | Starter switch signal | — | |
| W62 | OEM-A-26 | M170-A-13 | 0.5 | no route | Power steering load detect | — | |
| W63 | OEM-A-27 | M170-A-22 | 0.5 | no route | A/C switch (request) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 179679-6 | TE | S2000 2000–05 ECU harness plug B (25P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | 179680-5 | TE | S2000 2000–05 ECU harness plug C (31P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | 179681-6 | TE | S2000 2000–05 ECU harness plug A (32P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | S2K-0005-ECU-D | Honda | S2000 2000–05 ECU plug D (P/N unknown) | 1.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (17)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-A-1 ↔ M170-A-65 | OEM-A-1 "Coolant temp gauge drive" [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-12 ↔ M170-A-58 | OEM-A-12 "Immobilizer indicator light" [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-18 ↔ M170-A-64 | OEM-A-18 "Check engine light (MIL)" [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-12 ↔ M170-A-9 | OEM-B-12 "VTEC solenoid" [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-C-1 ↔ M170-A-8 | OEM-C-1 "Primary O2 heater" [low_side_out] is wired to M170-A-8 "Half Bridge Output 2" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-C-11 ↔ M170-A-59 | OEM-C-11 "Secondary O2 heater control" [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-C-20 ↔ M170-A-56 | OEM-C-20 "Cam (TDC1) sensor +" [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-C-29 ↔ M170-A-46 | OEM-C-29 "Cam (TDC2) sensor +" [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-C-8 ↔ M170-A-49 | OEM-C-8 "Crank sensor + (CKP+)" [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-15 ↔ M170-A-63 | OEM-A-15 "Fuel pump relay (USDM)" [low_side_out] is wired to M170-A-63 "Peak Hold Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-16 ↔ M170-A-66 | OEM-A-16 "Fuel pump relay (JDM)" [low_side_out] is wired to M170-A-66 "Peak Hold Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-17 ↔ M170-A-24 | OEM-A-17 "A/C clutch relay" [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-A-20 ↔ M170-A-42 | OEM-A-20 "Radiator fan relay" [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-28 ↔ M170-A-57 | OEM-A-28 "Air pump relay" [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-B-23 ↔ M170-A-62 | OEM-B-23 "Idle air control valve" [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-C-18 ↔ OEM-C-21 | OEM-C-18 "Sensor ground 2" [sensor_ground] is wired to OEM-C-21 "Cam (TDC1) sensor −" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 14 optional OEM pins are not mapped: OEM-A-10 Service check signal; OEM-A-13 Immobilizer enable signal; OEM-A-19 Tacho output; OEM-A-2 Air control valve solenoid; OEM-A-21 K-Line; OEM-A-25 Immobilizer code; OEM-A-3 Evap bypass solenoid; OEM-A-32 Brake switch; OEM-A-4 Evap canister vent shut valve; OEM-A-6 Evap canister purge valve; OEM-C-10 VTEC pressure switch; OEM-C-2 Alternator control; OEM-C-22 Knock sensor; OEM-C-3 Knock sensor |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-C 22: Knock sensor: 2 stock pins named "Knock sensor" without a documented polarity / pairing; wire by hand - OEM-C 3: Knock sensor: 2 stock pins named "Knock sensor" without a documented polarity / pairing; wire by hand - OEM-A 2: Air control valve solenoid: no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A 3: Evap bypass solenoid: no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A 4: Evap canister vent shut valve: no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A 6: Evap canister purge valve: no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-C 2: Alternator control: no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A 19: Tacho output: no free tacho/frequency_out/low_side/ls_hs on MoTeC M170 - OEM-A 32: Brake switch: no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-C 10: VTEC pressure switch: no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-A 21: K-Line: no free k_line on MoTeC M170 - OEM-A 10: Service check signal: not classified in the library; wire by hand - OEM-A 13: Immobilizer enable signal: not classified in the library; wire by hand - OEM-A 25: Immobilizer code: not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | AEM 30-6052 Series 2 Plug & Play EMS, 2000–2005 S2000 (original ECU pinout) | https://documents.aemelectronics.com/techlibrary_30-6052_series_2_plug___play_ems.pdf | — | 2026-10-05 | 9f79620fff5a |
| 4 | vendor_doc | Haltech KB: F20C (AP1) engine | https://support.haltech.com/portal/en/kb/articles/f20c-ap1-engine | — | 2026-10-05 | e804da29d014 |
| 4 | vendor_doc | Link S2000 AP1 PlugIn installation manual | https://linkecu.com/documentation/S2000X.pdf | — | 2026-10-05 | d12b0ff3f006 |
| 4 | vendor_doc | 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 |
| 2 | forum | AllPinouts: 2000–2005 Honda S2000 ECU | https://allpinouts.org/pinouts/connectors/car/2000-2005-honda-s2000-ecu/ | archive | 2026-10-05 | 81d874e0385d |
| 2 | forum | Autodata blog: ECU Pinout Honda S2000 2000-2004 | http://autodatas.blogspot.com/2012/11/ecu-pinout-honda-s2000-2000-2004.html | — | 2026-10-05 | 33b93af7640e |
| 2 | derived | Typical load estimates (relay coil ~0.2 A, high-Z injector ~1.2 A, VVT solenoid ~1 A) | — | — | — | — |