MX-5 Miata NB1 1999-00 (BP-4W) → MoTeC M190 13190 (auto)
MX-5 Miata NB1 1999-00 (BP-4W) — MoTeC — M190
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 | 67 wires · 9 connectors · 3 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-1-B | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-3-M | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | M190-B-H | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | M190-B-J | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | M190-B-K | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-14V-1 | M190-B-L | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-1-A | M190-A-38 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-3-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-3-B | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-3-C | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | M190-B-G | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | M190-B-W | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | M190-B-X | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | M190-B-Y | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-GND-1 | M190-B-Z | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-GND-1 | M190-B-c | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-3-F | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | M190-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | M190-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | M190-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | M190-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | M190-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | M190-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-0V-1 | M190-C-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-2-I | M190-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-2-J | M190-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-2-H | M190-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-2-F | M190-C-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-3-G | M190-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-3-H | M190-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-3-W | M190-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-3-X | M190-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-3-Y | M190-B-U | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-3-Z | M190-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-1-I | M190-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-1-R | M190-B-V | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-1-S | M190-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-3-N | M190-B-b | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-1-U | M190-B-A | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-3-V | M190-B-B | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-3-O | M190-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-1-E | M190-B-S | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-1-O | M190-A-48 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-1-Q | M190-B-a | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-2-M | M190-A-40 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-2-N | M190-B-T | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-2-O | M190-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-2-P | M190-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-3-L | M190-A-47 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-3-Q | M190-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-3-T | M190-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-3-U | M190-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-2-L | M190-C-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-3-E | M190-C-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-2-C | M190-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-3-J | M190-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-2-E | M190-C-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-2-B | M190-C-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-2-A | M190-C-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-3-K | M190-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-3-S | M190-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-2-D | M190-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-1-F | M190-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-1-G | M190-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-1-P | M190-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-1-V | M190-A-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-3-I | M190-C-27 | 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 | M190-A-16 | M190-A-18 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | M190-A-16 | M190-B-G | open (OL) | 5 V sensor reference must not touch power ground | |
| 3 | M190-A-38 | M190-A-18 | open (OL) | +12 V supply must not touch sensor ground | |
| 4 | M190-A-38 | M190-B-G | open (OL) | +12 V supply must not touch power ground | |
| 5 | M190-B-H | M190-A-18 | open (OL) | +12 V supply must not touch sensor ground | |
| 6 | M190-B-H | M190-B-G | open (OL) | +12 V supply must not touch power ground | |
| 7 | M190-A-38 | M190-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | M190-B-H | M190-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
M190-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Low Side Injector 3 | — | W37 | — | 0.5 | OEM-1-S | — | — | — |
| 10 | Low Side Injector 8 | — | W48 | — | 0.5 | OEM-2-P | — | — | — |
| 11 | Peak Hold Injector 1 | — | W31 | — | 0.5 | OEM-3-W | — | — | — |
| 12 | Peak Hold Injector 2 | — | W34 | — | 0.5 | OEM-3-Z | — | — | — |
| 13 | Analogue Voltage Input 11 | — | — | — | — | — | — | — | — |
| 14 | Digital Input 2 | — | W64 | — | 0.5 | OEM-1-G | — | — | — |
| 15 | RS232 Receive | — | — | — | — | — | — | — | — |
| 16 | Sensor 5.0V C3 | — | W25 | — | 0.5 | OEM-2-I | — | — | — |
| 17 | Low Side Injector 11 | — | W51 | — | 0.5 | OEM-3-T | — | — | — |
| 18 | Sensor 0V C1 | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor 0V C2 | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Low Side Injector 2 | — | W35 | — | 0.5 | OEM-1-I | — | — | — |
| 20 | Sensor 0V C3 | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Digital Input 1 | — | W63 | — | 0.5 | OEM-1-F | — | — | — |
| 22 | LIN Bus | — | — | — | — | — | — | — | — |
| 23 | RS232 Transmit | — | — | — | — | — | — | — | — |
| 24 | CAN Bus 2 High | — | — | — | — | — | — | — | — |
| 25 | Low Side Injector 7 | — | W47 | — | 0.5 | OEM-2-O | — | — | — |
| 26 | Peak Hold Injector 3 | — | — | — | — | — | — | — | — |
| 27 | Analogue Voltage Input 15 | — | — | — | — | — | — | — | — |
| 28 | Analogue Voltage Input 16 | — | — | — | — | — | — | — | — |
| 29 | Analogue Voltage Input 17 | — | — | — | — | — | — | — | — |
| 3 | Low Side Injector 1 | — | W32 | — | 0.5 | OEM-3-X | — | — | — |
| 30 | Digital Input 3 | — | W65 | — | 0.5 | OEM-1-P | — | — | — |
| 31 | CAN Bus 2 Low | — | — | — | — | — | — | — | — |
| 32 | Low Side Injector 10 | — | W50 | — | 0.5 | OEM-3-Q | — | — | — |
| 33 | Peak Hold Injector 4 | — | — | — | — | — | — | — | — |
| 34 | Analogue Voltage Input 13 | — | — | — | — | — | — | — | — |
| 35 | Analogue Voltage Input 12 | — | — | — | — | — | — | — | — |
| 36 | Peak Hold Injector 7 | — | — | — | — | — | — | — | — |
| 37 | Digital Input 4 | — | W66 | — | 0.5 | OEM-1-V | — | — | — |
| 38 | Battery Backup | — | W7 | — | 0.85 | OEM-1-A | — | — | — |
| 39 | CAN Bus 3 High | — | — | — | — | — | — | — | — |
| 4 | Low Side Injector 12 | — | W52 | — | 0.5 | OEM-3-U | — | — | — |
| 40 | Low Side Injector 6 | — | W45 | — | 0.5 | OEM-2-M | — | — | — |
| 41 | Analogue Voltage Input 14 | — | — | — | — | — | — | — | — |
| 42 | Peak Hold Injector 9 | — | — | — | — | — | — | — | — |
| 43 | Peak Hold Injector 10 | — | — | — | — | — | — | — | — |
| 44 | Peak Hold Injector 6 | — | — | — | — | — | — | — | — |
| 45 | Peak Hold Injector 5 | — | — | — | — | — | — | — | — |
| 46 | CAN Bus 3 Low | — | — | — | — | — | — | — | — |
| 47 | Low Side Injector 9 | — | W49 | — | 0.5 | OEM-3-L | — | — | — |
| 48 | Low Side Injector 5 | — | W43 | — | 0.5 | OEM-1-O | — | — | — |
| 49 | Peak Hold Injector 11 | — | — | — | — | — | — | — | — |
| 5 | Low Side Injector 4 | — | W41 | — | 0.5 | OEM-3-O | — | — | — |
| 50 | Peak Hold Injector 12 | — | — | — | — | — | — | — | — |
| 51 | Peak Hold Injector 8 | — | — | — | — | — | — | — | — |
| 52 | Low Side Ignition 12 | — | — | — | — | — | — | — | — |
| 53 | Low Side Ignition 9 | — | — | — | — | — | — | — | — |
| 54 | Low Side Ignition 10 | — | — | — | — | — | — | — | — |
| 55 | Low Side Ignition 11 | — | — | — | — | — | — | — | — |
| 6 | Lambda Narrow Input 2 | — | W56 | — | 0.5 | OEM-3-J | — | — | — |
| 7 | Lambda Narrow Input 1 | — | W55 | — | 0.5 | OEM-2-C | — | — | — |
| 8 | Sensor 5.0V C1 | — | — | — | — | — | — | — | — |
| 9 | Sensor 5.0V C2 | — | — | — | — | — | — | — | — |
M190-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Half Bridge Output 1 | — | W39 | — | 0.5 | OEM-1-U | — | — | — |
| B | Half Bridge Output 2 | — | W40 | — | 0.5 | OEM-3-V | — | — | — |
| C | Half Bridge Output 3 | — | — | — | — | — | — | — | — |
| D | Half Bridge Output 4 | — | — | — | — | — | — | — | — |
| E | Half Bridge Output 5 | — | — | — | — | — | — | — | — |
| F | Half Bridge Output 6 | — | — | — | — | — | — | — | — |
| G | Battery Negative 1 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| H | Battery Positive 1 | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| J | Battery Positive 2 | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| K | Battery Positive 3 | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| L | Battery Positive 4 | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
| M | Half Bridge Output 10 | — | — | — | — | — | — | — | — |
| N | Half Bridge Output 9 | — | — | — | — | — | — | — | — |
| P | Half Bridge Output 8 | — | — | — | — | — | — | — | — |
| R | Half Bridge Output 7 | — | — | — | — | — | — | — | — |
| S | Low Side Injector 4 | — | W42 | — | 0.5 | OEM-1-E | — | — | — |
| T | Low Side Injector 6 | — | W46 | — | 0.5 | OEM-2-N | — | — | — |
| U | Low Side Injector 1 | — | W33 | — | 0.5 | OEM-3-Y | — | — | — |
| V | Low Side Injector 2 | — | W36 | — | 0.5 | OEM-1-R | — | — | — |
| W | Battery Negative 2 | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| X | Battery Negative 3 | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| Y | Battery Negative 4 | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| Z | Battery Negative 5 | — | W15 | — | 0.85 | SP-GND-1 | — | — | — |
| a | Low Side Injector 5 | — | W44 | — | 0.5 | OEM-1-Q | — | — | — |
| b | Low Side Injector 3 | — | W38 | — | 0.5 | OEM-3-N | — | — | — |
| c | Battery Negative 6 | — | W16 | — | 0.85 | SP-GND-1 | — | — | — |
M190-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Low Side Ignition 4 | — | — | — | — | — | — | — | — |
| 10 | Universal Digital Input 8 | — | — | — | — | — | — | — | — |
| 11 | Analogue Voltage Input 6 | — | — | — | — | — | — | — | — |
| 12 | Analogue Voltage Input 7 | — | — | — | — | — | — | — | — |
| 13 | Analogue Voltage Input 9 | — | — | — | — | — | — | — | — |
| 14 | Sensor 0V A1 | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Sensor 0V A2 | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Low Side Ignition 1 | — | W29 | — | 0.5 | OEM-3-G | — | — | — |
| 17 | Universal Digital Input 7 | — | — | — | — | — | — | — | — |
| 18 | Universal Digital Input 1 | — | W26 | — | 0.5 | OEM-2-J | — | — | — |
| 19 | Universal Digital Input 12 | — | — | — | — | — | — | — | — |
| 2 | Low Side Ignition 3 | — | — | — | — | — | — | — | — |
| 20 | Universal Digital Input 11 | — | — | — | — | — | — | — | — |
| 21 | Universal Digital Input 10 | — | — | — | — | — | — | — | — |
| 22 | Universal Digital Input 9 | — | — | — | — | — | — | — | — |
| 23 | Sensor 0V B1 | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 25 | Universal Digital Input 3 | — | W62 | — | 0.5 | OEM-2-D | — | — | — |
| 26 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 27 | Universal Digital Input 4 | — | W67 | — | 0.5 | OEM-3-I | — | — | — |
| 28 | Analogue Voltage Input 4 | — | W60 | — | 0.5 | OEM-3-K | — | — | — |
| 29 | Analogue Voltage Input 5 | — | W61 | — | 0.5 | OEM-3-S | — | — | — |
| 3 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 30 | Sensor 0V B2 | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 32 | Universal Digital Input 2 | — | W27 | — | 0.5 | OEM-2-H | — | — | — |
| 33 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 34 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 35 | Analogue Voltage Input 3 | — | W59 | — | 0.5 | OEM-2-A | — | — | — |
| 36 | Analogue Voltage Input 2 | — | W54 | — | 0.5 | OEM-3-E | — | — | — |
| 37 | Analogue Temperature Input 1 | — | W57 | — | 0.5 | OEM-2-E | — | — | — |
| 38 | Analogue Temperature Input 3 | — | — | — | — | — | — | — | — |
| 39 | Analogue Temperature Input 2 | — | W58 | — | 0.5 | OEM-2-B | — | — | — |
| 4 | Low Side Ignition 6 | — | — | — | — | — | — | — | — |
| 40 | Universal Digital Input 5 | — | — | — | — | — | — | — | — |
| 41 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 42 | Analogue Voltage Input 1 | — | W53 | — | 0.5 | OEM-2-L | — | — | — |
| 43 | Knock Input 3 | — | — | — | — | — | — | — | — |
| 44 | Knock Input 2 | — | — | — | — | — | — | — | — |
| 45 | Analogue Temperature Input 5 | — | — | — | — | — | — | — | — |
| 46 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 47 | Universal Digital Input 6 | — | — | — | — | — | — | — | — |
| 48 | Sensor 5.0V A1 | — | — | — | — | — | — | — | — |
| 49 | Knock Input 4 | — | — | — | — | — | — | — | — |
| 5 | Low Side Ignition 5 | — | — | — | — | — | — | — | — |
| 50 | Sensor 5.0V B1 | — | — | — | — | — | — | — | — |
| 51 | Knock Input 1 | — | W28 | — | 0.5 | OEM-2-F | — | — | — |
| 52 | Analogue Temperature Input 6 | — | — | — | — | — | — | — | — |
| 53 | Sensor 5.0V A2 | — | — | — | — | — | — | — | — |
| 54 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 55 | Sensor 5.0V B2 | — | — | — | — | — | — | — | — |
| 6 | Analogue Voltage Input 8 | — | — | — | — | — | — | — | — |
| 7 | Analogue Voltage Input 10 | — | — | — | — | — | — | — | — |
| 8 | Low Side Ignition 2 | — | W30 | — | 0.5 | OEM-3-H | — | — | — |
| 9 | Low Side Ignition 7 | — | — | — | — | — | — | — | — |
OEM-1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Constant +12V | — | W7 | — | 0.85 | M190-A-38 | — | — | — |
| B | ECU power +14V (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| E | Malfunction indicator lamp (MIL) | — | W42 | — | 0.5 | M190-B-S | — | — | — |
| F | Brake switch | — | W63 | — | 0.5 | M190-A-21 | — | — | — |
| G | Power steering pressure switch | — | W64 | — | 0.5 | M190-A-14 | — | — | — |
| I | Condenser fan relay | — | W35 | — | 0.5 | M190-A-2 | — | — | — |
| O | Alternator control | — | W43 | — | 0.5 | M190-A-48 | — | — | — |
| P | A/C request | — | W65 | — | 0.5 | M190-A-30 | — | — | — |
| Q | Charge lamp | — | W44 | — | 0.5 | M190-B-a | — | — | — |
| R | Cooling fan relay | — | W36 | — | 0.5 | M190-B-V | — | — | — |
| S | A/C clutch relay | — | W37 | — | 0.5 | M190-A-1 | — | — | — |
| U | Front O2 heater | — | W39 | — | 0.5 | M190-B-A | — | — | — |
| V | Neutral switch | — | W66 | — | 0.5 | M190-A-37 | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Fuel tank pressure | — | W59 | — | 0.5 | M190-C-35 | — | — | — |
| B | Intake air temperature (IAT) | — | W58 | — | 0.5 | M190-C-39 | — | — | — |
| C | Front O2 signal | — | W55 | — | 0.5 | M190-A-7 | — | — | — |
| D | Vehicle speed | — | W62 | — | 0.5 | M190-C-25 | — | — | — |
| E | Coolant temperature (ECT) | — | W57 | — | 0.5 | M190-C-37 | — | — | — |
| F | Knock sensor | — | W28 | — | 0.5 | M190-C-51 | — | — | — |
| H | Cam position (CMP) | — | W27 | — | 0.5 | M190-C-32 | — | — | — |
| I | +5V sensor supply | — | W25 | — | 0.5 | M190-A-16 | — | — | — |
| J | Crank position (CKP) | — | W26 | — | 0.5 | M190-C-18 | — | — | — |
| K | Tachometer output | — | — | — | — | — | — | — | — |
| L | Mass air flow (MAF) | — | W53 | — | 0.5 | M190-C-42 | — | — | — |
| M | EGR valve | — | W45 | — | 0.5 | M190-A-40 | — | — | — |
| N | EGR valve | — | W46 | — | 0.5 | M190-B-T | — | — | — |
| O | EGR valve | — | W47 | — | 0.5 | M190-A-25 | — | — | — |
| P | EGR valve | — | W48 | — | 0.5 | M190-A-10 | — | — | — |
OEM-3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| B | Power ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| C | Power ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| E | Throttle position (TPS) | — | W54 | — | 0.5 | M190-C-36 | — | — | — |
| F | Signal ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| G | Ignition 1 (coils 1+4, wasted spark) | — | W29 | — | 0.5 | M190-C-16 | — | — | — |
| H | Ignition 2 (coils 2+3, wasted spark) | — | W30 | — | 0.5 | M190-C-8 | — | — | — |
| I | Clutch switch | — | W67 | — | 0.5 | M190-C-27 | — | — | — |
| J | Rear O2 signal | — | W56 | — | 0.5 | M190-A-6 | — | — | — |
| K | Fuel level | — | W60 | — | 0.5 | M190-C-28 | — | — | — |
| L | Evap purge solenoid | — | W49 | — | 0.5 | M190-A-47 | — | — | — |
| M | ISC valve +14V feed | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| N | Fuel pump relay | — | W38 | — | 0.5 | M190-B-b | — | — | — |
| O | ISC valve low side | — | W41 | — | 0.5 | M190-A-5 | — | — | — |
| Q | VICS solenoid (intake butterflies) | — | W50 | — | 0.5 | M190-A-32 | — | — | — |
| S | EGR boost sensor | — | W61 | — | 0.5 | M190-C-29 | — | — | — |
| T | EGR boost solenoid | — | W51 | — | 0.5 | M190-A-17 | — | — | — |
| U | Canister drain cut valve (CDCV) | — | W52 | — | 0.5 | M190-A-4 | — | — | — |
| V | Rear O2 heater | — | W40 | — | 0.5 | M190-B-B | — | — | — |
| W | Injector 1 | — | W31 | — | 0.5 | M190-A-11 | — | — | — |
| X | Injector 2 | — | W32 | — | 0.5 | M190-A-3 | — | — | — |
| Y | Injector 3 | — | W33 | — | 0.5 | M190-B-U | — | — | — |
| Z | Injector 4 | — | W34 | — | 0.5 | M190-A-12 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-3-F | — | — | — |
| 1 | — | — | W18 | — | 0.5 | M190-A-18 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | M190-A-19 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | M190-A-20 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | M190-C-14 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | M190-C-15 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | M190-C-23 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | M190-C-30 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-1-B | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-3-M | — | — | — |
| 1 | — | — | W3 | — | 0.85 | M190-B-H | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M190-B-J | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M190-B-K | — | — | — |
| 1 | — | — | W6 | — | 0.85 | M190-B-L | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | OEM-3-A | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-3-B | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-3-C | — | — | — |
| 1 | — | — | W11 | — | 0.85 | M190-B-G | — | — | — |
| 1 | — | — | W12 | — | 0.85 | M190-B-W | — | — | — |
| 1 | — | — | W13 | — | 0.85 | M190-B-X | — | — | — |
| 1 | — | — | W14 | — | 0.85 | M190-B-Y | — | — | — |
| 1 | — | — | W15 | — | 0.85 | M190-B-Z | — | — | — |
| 1 | — | — | W16 | — | 0.85 | M190-B-c | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-1-A | Constant +12V | power_in | M190-A-38 | Battery Backup | power_in | single_source | |
| OEM-1-B | ECU power +14V (main relay) | power_in | M190-B-H + M190-B-J + M190-B-K + M190-B-L | Battery Positive 1 + Battery Positive 2 + Battery Positive 3 + Battery Positive 4 | power_in | single_source | |
| OEM-1-E | Malfunction indicator lamp (MIL) | low_side_out | M190-B-S | Low Side Injector 4 | injector_out | single_source | |
| OEM-1-F | Brake switch | digital_in | M190-A-21 | Digital Input 1 | digital_in | single_source | |
| OEM-1-G | Power steering pressure switch | digital_in | M190-A-14 | Digital Input 2 | digital_in | single_source | |
| OEM-1-I | Condenser fan relay | low_side_out | M190-A-2 | Low Side Injector 2 | injector_out | single_source | |
| OEM-1-O | Alternator control | low_side_out | M190-A-48 | Low Side Injector 5 | injector_out | single_source | |
| OEM-1-P | A/C request | digital_in | M190-A-30 | Digital Input 3 | digital_in | single_source | |
| OEM-1-Q | Charge lamp | low_side_out | M190-B-a | Low Side Injector 5 | injector_out | single_source | |
| OEM-1-R | Cooling fan relay | low_side_out | M190-B-V | Low Side Injector 2 | injector_out | single_source | |
| OEM-1-S | A/C clutch relay | low_side_out | M190-A-1 | Low Side Injector 3 | injector_out | single_source | |
| OEM-1-U | Front O2 heater | low_side_out | M190-B-A | Half Bridge Output 1 | hbridge_out | single_source | |
| OEM-1-V | Neutral switch | digital_in | M190-A-37 | Digital Input 4 | digital_in | single_source | |
| OEM-2-A | Fuel tank pressure | analog_in | M190-C-35 | Analogue Voltage Input 3 | analog_in | single_source | |
| OEM-2-B | Intake air temperature (IAT) | temp_in | M190-C-39 | Analogue Temperature Input 2 | temp_in | single_source | |
| OEM-2-C | Front O2 signal | lambda_nb_in | M190-A-7 | Lambda Narrow Input 1 | lambda_nb_in | single_source | |
| OEM-2-D | Vehicle speed | digital_in | M190-C-25 | Universal Digital Input 3 | digital_in | single_source | |
| OEM-2-E | Coolant temperature (ECT) | temp_in | M190-C-37 | Analogue Temperature Input 1 | temp_in | single_source | |
| OEM-2-F | Knock sensor | knock_in | M190-C-51 | Knock Input 1 | knock_in | single_source | |
| OEM-2-H | Cam position (CMP) | trigger_in | M190-C-32 | Universal Digital Input 2 | digital_in | single_source | |
| OEM-2-I | +5V sensor supply | vref | M190-A-16 | Sensor 5.0V C3 | vref | single_source | |
| OEM-2-J | Crank position (CKP) | trigger_in | M190-C-18 | Universal Digital Input 1 | digital_in | single_source | |
| OEM-2-K | Tachometer output | tacho_out | — | — | — | single_source | |
| OEM-2-L | Mass air flow (MAF) | analog_in | M190-C-42 | Analogue Voltage Input 1 | analog_in | single_source | |
| OEM-2-M | EGR valve | low_side_out | M190-A-40 | Low Side Injector 6 | injector_out | single_source | |
| OEM-2-N | EGR valve | low_side_out | M190-B-T | Low Side Injector 6 | injector_out | single_source | |
| OEM-2-O | EGR valve | low_side_out | M190-A-25 | Low Side Injector 7 | injector_out | single_source | |
| OEM-2-P | EGR valve | low_side_out | M190-A-10 | Low Side Injector 8 | injector_out | single_source | |
| OEM-3-A | Power ground | ground | M190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-c | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6 | ground | single_source | |
| OEM-3-B | Power ground | ground | M190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-c | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6 | ground | single_source | |
| OEM-3-C | Power ground | ground | M190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-c | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6 | ground | single_source | |
| OEM-3-E | Throttle position (TPS) | analog_in | M190-C-36 | Analogue Voltage Input 2 | analog_in | single_source | |
| OEM-3-F | Signal ground | sensor_ground | M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30 | Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2 | sensor_ground | single_source | |
| OEM-3-G | Ignition 1 (coils 1+4, wasted spark) | ignition_out | M190-C-16 | Low Side Ignition 1 | ignition_out | single_source | |
| OEM-3-H | Ignition 2 (coils 2+3, wasted spark) | ignition_out | M190-C-8 | Low Side Ignition 2 | ignition_out | single_source | |
| OEM-3-I | Clutch switch | digital_in | M190-C-27 | Universal Digital Input 4 | digital_in | single_source | |
| OEM-3-J | Rear O2 signal | lambda_nb_in | M190-A-6 | Lambda Narrow Input 2 | lambda_nb_in | single_source | |
| OEM-3-K | Fuel level | analog_in | M190-C-28 | Analogue Voltage Input 4 | analog_in | single_source | |
| OEM-3-L | Evap purge solenoid | low_side_out | M190-A-47 | Low Side Injector 9 | injector_out | single_source | |
| OEM-3-M | ISC valve +14V feed | power_in | M190-B-H + M190-B-J + M190-B-K + M190-B-L | Battery Positive 1 + Battery Positive 2 + Battery Positive 3 + Battery Positive 4 | power_in | single_source | |
| OEM-3-N | Fuel pump relay | low_side_out | M190-B-b | Low Side Injector 3 | injector_out | single_source | |
| OEM-3-O | ISC valve low side | low_side_out | M190-A-5 | Low Side Injector 4 | injector_out | single_source | |
| OEM-3-Q | VICS solenoid (intake butterflies) | low_side_out | M190-A-32 | Low Side Injector 10 | injector_out | single_source | |
| OEM-3-S | EGR boost sensor | analog_in | M190-C-29 | Analogue Voltage Input 5 | analog_in | single_source | |
| OEM-3-T | EGR boost solenoid | low_side_out | M190-A-17 | Low Side Injector 11 | injector_out | single_source | |
| OEM-3-U | Canister drain cut valve (CDCV) | low_side_out | M190-A-4 | Low Side Injector 12 | injector_out | single_source | |
| OEM-3-V | Rear O2 heater | low_side_out | M190-B-B | Half Bridge Output 2 | hbridge_out | single_source | |
| OEM-3-W | Injector 1 | injector_out | M190-A-11 | Peak Hold Injector 1 | injector_out | single_source | |
| OEM-3-X | Injector 2 | injector_out | M190-A-3 | Low Side Injector 1 | injector_out | single_source | |
| OEM-3-Y | Injector 3 | injector_out | M190-B-U | Low Side Injector 1 | injector_out | single_source | |
| OEM-3-Z | Injector 4 | injector_out | M190-A-12 | Peak Hold Injector 2 | injector_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-1-B | SP-14V-1 | 0.85 | no route | ECU power +14V (main relay) | — | |
| W2 | OEM-3-M | SP-14V-1 | 0.85 | no route | ISC valve +14V feed | — | |
| W3 | SP-14V-1 | M190-B-H | 0.85 | no route | Battery Positive 1 | — | |
| W4 | SP-14V-1 | M190-B-J | 0.85 | no route | Battery Positive 2 | — | |
| W5 | SP-14V-1 | M190-B-K | 0.85 | no route | Battery Positive 3 | — | |
| W6 | SP-14V-1 | M190-B-L | 0.85 | no route | Battery Positive 4 | — | |
| W7 | OEM-1-A | M190-A-38 | 0.85 | no route | Constant +12V | — | |
| W8 | OEM-3-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W9 | OEM-3-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W10 | OEM-3-C | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W11 | SP-GND-1 | M190-B-G | 0.85 | no route | Battery Negative 1 | — | |
| W12 | SP-GND-1 | M190-B-W | 0.85 | no route | Battery Negative 2 | — | |
| W13 | SP-GND-1 | M190-B-X | 0.85 | no route | Battery Negative 3 | — | |
| W14 | SP-GND-1 | M190-B-Y | 0.85 | no route | Battery Negative 4 | — | |
| W15 | SP-GND-1 | M190-B-Z | 0.85 | no route | Battery Negative 5 | — | |
| W16 | SP-GND-1 | M190-B-c | 0.85 | no route | Battery Negative 6 | — | |
| W17 | OEM-3-F | SP-0V-1 | 0.5 | no route | Signal ground | — | |
| W18 | SP-0V-1 | M190-A-18 | 0.5 | no route | Sensor 0V C1 | — | |
| W19 | SP-0V-1 | M190-A-19 | 0.5 | no route | Sensor 0V C2 | — | |
| W20 | SP-0V-1 | M190-A-20 | 0.5 | no route | Sensor 0V C3 | — | |
| W21 | SP-0V-1 | M190-C-14 | 0.5 | no route | Sensor 0V A1 | — | |
| W22 | SP-0V-1 | M190-C-15 | 0.5 | no route | Sensor 0V A2 | — | |
| W23 | SP-0V-1 | M190-C-23 | 0.5 | no route | Sensor 0V B1 | — | |
| W24 | SP-0V-1 | M190-C-30 | 0.5 | no route | Sensor 0V B2 | — | |
| W25 | OEM-2-I | M190-A-16 | 0.5 | no route | +5V sensor supply | — | |
| W26 | OEM-2-J | M190-C-18 | 0.5 | no route | Crank position (CKP) | — | |
| W27 | OEM-2-H | M190-C-32 | 0.5 | no route | Cam position (CMP) | — | |
| W28 | OEM-2-F | M190-C-51 | 0.5 | no route | Knock sensor | — | |
| W29 | OEM-3-G | M190-C-16 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W30 | OEM-3-H | M190-C-8 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W31 | OEM-3-W | M190-A-11 | 0.5 | no route | Injector 1 | — | |
| W32 | OEM-3-X | M190-A-3 | 0.5 | no route | Injector 2 | — | |
| W33 | OEM-3-Y | M190-B-U | 0.5 | no route | Injector 3 | — | |
| W34 | OEM-3-Z | M190-A-12 | 0.5 | no route | Injector 4 | — | |
| W35 | OEM-1-I | M190-A-2 | 0.5 | no route | Condenser fan relay | — | |
| W36 | OEM-1-R | M190-B-V | 0.5 | no route | Cooling fan relay | — | |
| W37 | OEM-1-S | M190-A-1 | 0.5 | no route | A/C clutch relay | — | |
| W38 | OEM-3-N | M190-B-b | 0.5 | no route | Fuel pump relay | — | |
| W39 | OEM-1-U | M190-B-A | 0.5 | no route | Front O2 heater | — | |
| W40 | OEM-3-V | M190-B-B | 0.5 | no route | Rear O2 heater | — | |
| W41 | OEM-3-O | M190-A-5 | 0.5 | no route | ISC valve low side | — | |
| W42 | OEM-1-E | M190-B-S | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W43 | OEM-1-O | M190-A-48 | 0.5 | no route | Alternator control | — | |
| W44 | OEM-1-Q | M190-B-a | 0.5 | no route | Charge lamp | — | |
| W45 | OEM-2-M | M190-A-40 | 0.5 | no route | EGR valve | — | |
| W46 | OEM-2-N | M190-B-T | 0.5 | no route | EGR valve | — | |
| W47 | OEM-2-O | M190-A-25 | 0.5 | no route | EGR valve | — | |
| W48 | OEM-2-P | M190-A-10 | 0.5 | no route | EGR valve | — | |
| W49 | OEM-3-L | M190-A-47 | 0.5 | no route | Evap purge solenoid | — | |
| W50 | OEM-3-Q | M190-A-32 | 0.5 | no route | VICS solenoid (intake butterflies) | — | |
| W51 | OEM-3-T | M190-A-17 | 0.5 | no route | EGR boost solenoid | — | |
| W52 | OEM-3-U | M190-A-4 | 0.5 | no route | Canister drain cut valve (CDCV) | — | |
| W53 | OEM-2-L | M190-C-42 | 0.5 | no route | Mass air flow (MAF) | — | |
| W54 | OEM-3-E | M190-C-36 | 0.5 | no route | Throttle position (TPS) | — | |
| W55 | OEM-2-C | M190-A-7 | 0.5 | no route | Front O2 signal | — | |
| W56 | OEM-3-J | M190-A-6 | 0.5 | no route | Rear O2 signal | — | |
| W57 | OEM-2-E | M190-C-37 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W58 | OEM-2-B | M190-C-39 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W59 | OEM-2-A | M190-C-35 | 0.5 | no route | Fuel tank pressure | — | |
| W60 | OEM-3-K | M190-C-28 | 0.5 | no route | Fuel level | — | |
| W61 | OEM-3-S | M190-C-29 | 0.5 | no route | EGR boost sensor | — | |
| W62 | OEM-2-D | M190-C-25 | 0.5 | no route | Vehicle speed | — | |
| W63 | OEM-1-F | M190-A-21 | 0.5 | no route | Brake switch | — | |
| W64 | OEM-1-G | M190-A-14 | 0.5 | no route | Power steering pressure switch | — | |
| W65 | OEM-1-P | M190-A-30 | 0.5 | no route | A/C request | — | |
| W66 | OEM-1-V | M190-A-37 | 0.5 | no route | Neutral switch | — | |
| W67 | OEM-3-I | M190-C-27 | 0.5 | no route | Clutch switch | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 174514-6 | TE | AMP Multilock .040/.070 hybrid 16-pin female harness plug (Miata NB1 ECU) | 1.000 | ea |
| connector | 174515-6 | TE | AMP Multilock .040/.070 hybrid 22-pin female harness plug (Miata NA/NB ECU) | 1.000 | ea |
| connector | 174516-6 | TE | AMP Multilock .040/.070 hybrid 26-pin female harness plug (Miata NA/NB ECU) | 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 (21)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-1-U ↔ M190-B-A | OEM-1-U "Front O2 heater" [low_side_out] is wired to M190-B-A "Half Bridge Output 1" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-2-H ↔ M190-C-32 | OEM-2-H "Cam position (CMP)" [trigger_in] is wired to M190-C-32 "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-2-J ↔ M190-C-18 | OEM-2-J "Crank position (CKP)" [trigger_in] is wired to M190-C-18 "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-3-V ↔ M190-B-B | OEM-3-V "Rear O2 heater" [low_side_out] is wired to M190-B-B "Half Bridge Output 2" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| info | NET_FAMILY | OEM-1-E ↔ M190-B-S | OEM-1-E "Malfunction indicator lamp (MIL)" [low_side_out] is wired to M190-B-S "Low Side Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-1-I ↔ M190-A-2 | OEM-1-I "Condenser fan relay" [low_side_out] is wired to M190-A-2 "Low Side Injector 2" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-1-O ↔ M190-A-48 | OEM-1-O "Alternator control" [low_side_out] is wired to M190-A-48 "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-1-Q ↔ M190-B-a | OEM-1-Q "Charge lamp" [low_side_out] is wired to M190-B-a "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-1-R ↔ M190-B-V | OEM-1-R "Cooling fan relay" [low_side_out] is wired to M190-B-V "Low Side Injector 2" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-1-S ↔ M190-A-1 | OEM-1-S "A/C clutch relay" [low_side_out] is wired to M190-A-1 "Low Side Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-M ↔ M190-A-40 | OEM-2-M "EGR valve" [low_side_out] is wired to M190-A-40 "Low Side Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-N ↔ M190-B-T | OEM-2-N "EGR valve" [low_side_out] is wired to M190-B-T "Low Side Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-O ↔ M190-A-25 | OEM-2-O "EGR valve" [low_side_out] is wired to M190-A-25 "Low Side Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-P ↔ M190-A-10 | OEM-2-P "EGR valve" [low_side_out] is wired to M190-A-10 "Low Side Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-L ↔ M190-A-47 | OEM-3-L "Evap purge solenoid" [low_side_out] is wired to M190-A-47 "Low Side Injector 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-N ↔ M190-B-b | OEM-3-N "Fuel pump relay" [low_side_out] is wired to M190-B-b "Low Side Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-O ↔ M190-A-5 | OEM-3-O "ISC valve low side" [low_side_out] is wired to M190-A-5 "Low Side Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-Q ↔ M190-A-32 | OEM-3-Q "VICS solenoid (intake butterflies)" [low_side_out] is wired to M190-A-32 "Low Side Injector 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-T ↔ M190-A-17 | OEM-3-T "EGR boost solenoid" [low_side_out] is wired to M190-A-17 "Low Side Injector 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-U ↔ M190-A-4 | OEM-3-U "Canister drain cut valve (CDCV)" [low_side_out] is wired to M190-A-4 "Low Side Injector 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 1 optional OEM pins are not mapped: OEM-2-K Tachometer output |
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-2 K: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MoTeC M190
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Link G4X MX5NB1X install manual (NB1 1999-00) | https://linkecu.com/documentation/MX5XNB1.pdf | archive | 2026-10-05 | 2e36c91270cc |
| 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 |