MX-5 Miata Mazdaspeed 2004-05 (BP-ZET turbo, no VVT) → MoTeC M150 13150 (auto)
MX-5 Miata Mazdaspeed 2004-05 (BP-ZET turbo, no VVT) — MoTeC — M150
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-17
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 68 wires · 12 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-2-P | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-4-AF | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | M150-B-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | M150-B-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | M150-C-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-4-AG | M150-D-12 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-3-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-3-B | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-4-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | M150-A-24 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | M150-A-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | M150-A-32 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | M150-C-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | M150-C-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-4-O | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | M150-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | M150-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | M150-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | M150-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | M150-D-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | M150-D-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-4-L | M150-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-3-Y | M150-D-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-3-V | M150-D-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-4-M | M150-D-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-3-F | M150-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-3-I | M150-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-2-A | M150-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-2-D | M150-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-2-G | M150-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-2-J | M150-C-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-4-X | M150-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-4-V | M150-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-4-P | M150-D-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-2-B | M150-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-2-C | M150-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-2-K | M150-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-2-M | M150-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-3-H | M150-C-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-2-O | M150-C-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-4-D | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | RLY1-R-COIL- | M150-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-4-E | RLY2-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | SP-14V-1 | RLY2-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | SP-14V-1 | RLY2-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | RLY2-R-COIL- | M150-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-3-J | M150-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-3-P | M150-C-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-2-Q | M150-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-2-E | M150-B-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-2-F | M150-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-2-H | M150-B-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-4-AE | M150-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-4-AA | M150-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-4-W | M150-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-4-R | M150-D-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-4-N | M150-D-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-4-AD | M150-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-3-T | M150-D-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-3-S | M150-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-4-B | M150-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-4-C | M150-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-4-F | M150-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-4-H | M150-D-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-4-I | M150-D-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-4-J | M150-D-11 | 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 | M150-A-10 | M150-A-26 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | M150-B-13 | M150-A-24 | open (OL) | +12 V supply must not touch power ground | |
| 3 | M150-B-13 | M150-A-26 | open (OL) | +12 V supply must not touch sensor ground | |
| 4 | M150-D-12 | M150-A-26 | open (OL) | +12 V supply must not touch sensor ground | |
| 5 | RLY1-R-OUT | M150-A-26 | open (OL) | +12 V supply must not touch sensor ground | |
| 6 | RLY2-R-OUT | M150-A-26 | open (OL) | +12 V supply must not touch sensor ground | |
| 7 | M150-A-24 | M150-A-10 | open (OL) | power ground must not touch 5 V sensor reference | |
| 8 | M150-A-24 | M150-D-12 | open (OL) | power ground must not touch +12 V supply | |
| 9 | M150-A-24 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 10 | M150-A-24 | RLY2-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 11 | M150-B-13 | M150-A-10 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 12 | M150-D-12 | M150-A-10 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 13 | RLY1-R-OUT | M150-A-10 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 14 | RLY2-R-OUT | M150-A-10 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
M150-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue Temperature Input 5 | — | — | — | — | — | — | — | — |
| 10 | Sensor 5.0V C1 | — | W22 | — | 0.5 | OEM-4-L | — | — | — |
| 11 | Lambda Narrow Input 1 | — | W56 | — | 0.5 | OEM-4-AA | — | — | — |
| 12 | Lambda Narrow Input 2 | — | W57 | — | 0.5 | OEM-4-W | — | — | — |
| 13 | Knock Input 3 | — | — | — | — | — | — | — | — |
| 14 | Knock Input 4 | — | — | — | — | — | — | — | — |
| 15 | Digital Input 2 | — | W63 | — | 0.5 | OEM-4-B | — | — | — |
| 16 | Digital Input 3 | — | W64 | — | 0.5 | OEM-4-C | — | — | — |
| 17 | Digital Input 4 | — | W65 | — | 0.5 | OEM-4-F | — | — | — |
| 18 | Sensor 5.0V C2 | — | — | — | — | — | — | — | — |
| 19 | Sensor 5.0V B2 | — | — | — | — | — | — | — | — |
| 2 | Analogue Temperature Input 6 | — | — | — | — | — | — | — | — |
| 20 | LIN Bus | — | — | — | — | — | — | — | — |
| 21 | RS232 Receive | — | — | — | — | — | — | — | — |
| 22 | RS232 Transmit | — | — | — | — | — | — | — | — |
| 23 | Digital Input 1 | — | W62 | — | 0.5 | OEM-3-S | — | — | — |
| 24 | Battery Negative 3 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Battery Negative 4 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Sensor 0V C1 | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | Sensor 0V C2 | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | CAN Bus 3 High | — | — | — | — | — | — | — | — |
| 29 | CAN Bus 3 Low | — | — | — | — | — | — | — | — |
| 3 | Analogue Voltage Input 15 | — | — | — | — | — | — | — | — |
| 30 | CAN Bus 2 High | — | — | — | — | — | — | — | — |
| 31 | CAN Bus 2 Low | — | — | — | — | — | — | — | — |
| 32 | Battery Negative 5 | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 33 | Sensor 0V B1 | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Sensor 0V A1 | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 4 | Analogue Voltage Input 16 | — | — | — | — | — | — | — | — |
| 5 | Analogue Voltage Input 17 | — | — | — | — | — | — | — | — |
| 6 | Low Side Ignition 9 | — | — | — | — | — | — | — | — |
| 7 | Low Side Ignition 10 | — | — | — | — | — | — | — | — |
| 8 | Low Side Ignition 11 | — | — | — | — | — | — | — | — |
| 9 | Low Side Ignition 12 | — | — | — | — | — | — | — | — |
M150-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Half Bridge Output 9 | — | — | — | — | — | — | — | — |
| 10 | Analogue Voltage Input 9 | — | — | — | — | — | — | — | — |
| 11 | Analogue Voltage Input 10 | — | — | — | — | — | — | — | — |
| 12 | Analogue Voltage Input 11 | — | — | — | — | — | — | — | — |
| 13 | Battery Positive | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Low Side Injector 6 | — | W38 | — | 0.5 | OEM-2-M | — | — | — |
| 15 | Low Side Injector 4 | — | W36 | — | 0.5 | OEM-2-C | — | — | — |
| 16 | Analogue Voltage Input 12 | — | — | — | — | — | — | — | — |
| 17 | Analogue Voltage Input 13 | — | — | — | — | — | — | — | — |
| 18 | Analogue Voltage Input 14 | — | — | — | — | — | — | — | — |
| 19 | Battery Positive | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Half Bridge Output 10 | — | — | — | — | — | — | — | — |
| 20 | Half Bridge Output 7 | — | — | — | — | — | — | — | — |
| 21 | Half Bridge Output 8 | — | — | — | — | — | — | — | — |
| 22 | Peak Hold Injector 9 | — | W51 | — | 0.5 | OEM-2-Q | — | — | — |
| 23 | Peak Hold Injector 10 | — | W52 | — | 0.5 | OEM-2-E | — | — | — |
| 24 | Peak Hold Injector 11 | — | W53 | — | 0.5 | OEM-2-F | — | — | — |
| 25 | Peak Hold Injector 12 | — | W54 | — | 0.5 | OEM-2-H | — | — | — |
| 26 | Sensor 5.0V A | — | — | — | — | — | — | — | — |
| 3 | Universal Digital Input 8 | — | — | — | — | — | — | — | — |
| 4 | Universal Digital Input 9 | — | — | — | — | — | — | — | — |
| 5 | Universal Digital Input 10 | — | — | — | — | — | — | — | — |
| 6 | Universal Digital Input 11 | — | — | — | — | — | — | — | — |
| 7 | Universal Digital Input 12 | — | — | — | — | — | — | — | — |
| 8 | Low Side Injector 5 | — | W37 | — | 0.5 | OEM-2-K | — | — | — |
| 9 | Low Side Injector 3 | — | W35 | — | 0.5 | OEM-2-B | — | — | — |
M150-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Half Bridge Output 2 | — | — | — | — | — | — | — | — |
| 10 | Battery Negative 1 | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery Negative 2 | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | Low Side Ignition 7 | — | — | — | — | — | — | — | — |
| 13 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 14 | Analogue Voltage Input 1 | — | W32 | — | 0.5 | OEM-4-X | — | — | — |
| 15 | Analogue Voltage Input 2 | — | W33 | — | 0.5 | OEM-4-V | — | — | — |
| 16 | Analogue Voltage Input 3 | — | W55 | — | 0.5 | OEM-4-AE | — | — | — |
| 17 | Analogue Voltage Input 4 | — | W60 | — | 0.5 | OEM-4-AD | — | — | — |
| 18 | Half Bridge Output 1 | — | — | — | — | — | — | — | — |
| 19 | Peak Hold Injector 1 | — | W28 | — | 0.5 | OEM-2-A | — | — | — |
| 2 | Sensor 5.0V A | — | — | — | — | — | — | — | — |
| 20 | Peak Hold Injector 2 | — | W30 | — | 0.5 | OEM-2-G | — | — | — |
| 21 | Peak Hold Injector 3 | — | W39 | — | 0.5 | OEM-3-H | — | — | — |
| 22 | Peak Hold Injector 4 | — | W40 | — | 0.5 | OEM-2-O | — | — | — |
| 23 | Low Side Injector 1 | — | W29 | — | 0.5 | OEM-2-D | — | — | — |
| 24 | Low Side Injector 2 | — | W31 | — | 0.5 | OEM-2-J | — | — | — |
| 25 | Analogue Voltage Input 5 | — | — | — | — | — | — | — | — |
| 26 | Battery Positive | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 27 | Peak Hold Injector 5 | — | W44 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| 28 | Peak Hold Injector 6 | — | W48 | — | 0.5 | RLY2-R-COIL- | — | — | — |
| 29 | Peak Hold Injector 7 | — | W49 | — | 0.5 | OEM-3-J | — | — | — |
| 3 | Low Side Ignition 1 | — | W26 | — | 0.5 | OEM-3-F | — | — | — |
| 30 | Peak Hold Injector 8 | — | W50 | — | 0.5 | OEM-3-P | — | — | — |
| 31 | Half Bridge Output 3 | — | — | — | — | — | — | — | — |
| 32 | Half Bridge Output 4 | — | — | — | — | — | — | — | — |
| 33 | Half Bridge Output 5 | — | — | — | — | — | — | — | — |
| 34 | Half Bridge Output 6 | — | — | — | — | — | — | — | — |
| 4 | Low Side Ignition 2 | — | W27 | — | 0.5 | OEM-3-I | — | — | — |
| 5 | Low Side Ignition 3 | — | — | — | — | — | — | — | — |
| 6 | Low Side Ignition 4 | — | — | — | — | — | — | — | — |
| 7 | Low Side Ignition 5 | — | — | — | — | — | — | — | — |
| 8 | Low Side Ignition 6 | — | — | — | — | — | — | — | — |
| 9 | Sensor 5.0V B | — | — | — | — | — | — | — | — |
M150-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Universal Digital Input 1 | — | W23 | — | 0.5 | OEM-3-Y | — | — | — |
| 10 | Universal Digital Input 5 | — | W67 | — | 0.5 | OEM-4-I | — | — | — |
| 11 | Universal Digital Input 6 | — | W68 | — | 0.5 | OEM-4-J | — | — | — |
| 12 | Battery Backup | — | W6 | — | 0.85 | OEM-4-AG | — | — | — |
| 13 | Knock Input 2 | — | — | — | — | — | — | — | — |
| 14 | Universal Digital Input 7 | — | — | — | — | — | — | — | — |
| 15 | Sensor 0V A | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Sensor 0V B | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 18 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 19 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 2 | Universal Digital Input 2 | — | W24 | — | 0.5 | OEM-3-V | — | — | — |
| 20 | Analogue Voltage Input 6 | — | — | — | — | — | — | — | — |
| 21 | Analogue Voltage Input 7 | — | — | — | — | — | — | — | — |
| 22 | Analogue Voltage Input 8 | — | — | — | — | — | — | — | — |
| 23 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 24 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 25 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 26 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 3 | Analogue Temperature Input 1 | — | W34 | — | 0.5 | OEM-4-P | — | — | — |
| 4 | Analogue Temperature Input 2 | — | W58 | — | 0.5 | OEM-4-R | — | — | — |
| 5 | Analogue Temperature Input 3 | — | W59 | — | 0.5 | OEM-4-N | — | — | — |
| 6 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 7 | Knock Input 1 | — | W25 | — | 0.5 | OEM-4-M | — | — | — |
| 8 | Universal Digital Input 3 | — | W61 | — | 0.5 | OEM-3-T | — | — | — |
| 9 | Universal Digital Input 4 | — | W66 | — | 0.5 | OEM-4-H | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Injector 1 | — | W28 | — | 0.5 | M150-C-19 | — | — | — |
| B | Cooling fan relay | — | W35 | — | 0.5 | M150-B-9 | — | — | — |
| C | Condenser fan relay | — | W36 | — | 0.5 | M150-B-15 | — | — | — |
| D | Injector 2 | — | W29 | — | 0.5 | M150-C-23 | — | — | — |
| E | EGR valve | — | W52 | — | 0.5 | M150-B-23 | — | — | — |
| F | EGR valve | — | W53 | — | 0.5 | M150-B-24 | — | — | — |
| G | Injector 3 | — | W30 | — | 0.5 | M150-C-20 | — | — | — |
| H | EGR valve | — | W54 | — | 0.5 | M150-B-25 | — | — | — |
| I | EGR valve | — | — | — | — | — | — | — | — |
| J | Injector 4 | — | W31 | — | 0.5 | M150-C-24 | — | — | — |
| K | A/C clutch relay | — | W37 | — | 0.5 | M150-B-8 | — | — | — |
| L | NC | — | — | — | — | — | — | — | — |
| M | Fuel pump relay | — | W38 | — | 0.5 | M150-B-14 | — | — | — |
| N | VTCS solenoid (intake butterflies) | — | — | — | — | — | — | — | — |
| O | Fuel pump relay (non-immobiliser) | — | W40 | — | 0.5 | M150-C-22 | — | — | — |
| P | ISC valve +14V feed | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| Q | ISC valve low side | — | W51 | — | 0.5 | M150-B-22 | — | — | — |
| R | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
OEM-3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| B | Power ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| C | Purge solenoid valve | — | — | — | — | — | — | — | — |
| D | EGR boost solenoid | — | — | — | — | — | — | — | — |
| E | NC | — | — | — | — | — | — | — | — |
| F | Ignition 1 (coils 1+4, wasted spark) | — | W26 | — | 0.5 | M150-C-3 | — | — | — |
| G | NC | — | — | — | — | — | — | — | — |
| H | Main relay | — | W39 | — | 0.5 | M150-C-21 | — | — | — |
| I | Ignition 2 (coils 2+3, wasted spark) | — | W27 | — | 0.5 | M150-C-4 | — | — | — |
| J | Front O2 heater | — | W49 | — | 0.5 | M150-C-29 | — | — | — |
| K | EVAP leak detection pump | — | — | — | — | — | — | — | — |
| L | NC | — | — | — | — | — | — | — | — |
| M | Alternator control | — | — | — | — | — | — | — | — |
| N | NC | — | — | — | — | — | — | — | — |
| O | Tachometer output | — | — | — | — | — | — | — | — |
| P | Rear O2 heater | — | W50 | — | 0.5 | M150-C-30 | — | — | — |
| Q | Data link connector (K-line) | — | — | — | — | — | — | — | — |
| R | NC | — | — | — | — | — | — | — | — |
| S | Immobiliser | — | W62 | — | 0.5 | M150-A-23 | — | — | — |
| T | Vehicle speed | — | W61 | — | 0.5 | M150-D-8 | — | — | — |
| U | Charge lamp | — | — | — | — | — | — | — | — |
| V | Cam position (CMP) | — | W24 | — | 0.5 | M150-D-2 | — | — | — |
| W | NC | — | — | — | — | — | — | — | — |
| X | NC | — | — | — | — | — | — | — | — |
| Y | Crank position (CKP) | — | W23 | — | 0.5 | M150-D-1 | — | — | — |
| Z | NC | — | — | — | — | — | — | — | — |
OEM-4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| AA | Rear O2 signal | — | W56 | — | 0.5 | M150-A-11 | — | — | — |
| AB | NC | — | — | — | — | — | — | — | — |
| AC | Data link connector (DLC TEN, turbo) | — | — | — | — | — | — | — | — |
| AD | Fuel level | — | W60 | — | 0.5 | M150-C-17 | — | — | — |
| AE | BARO/MAP sensor (turbo boost pressure) | — | W55 | — | 0.5 | M150-C-16 | — | — | — |
| AF | ECU power +14V (main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| AG | Constant +12V | — | W6 | — | 0.85 | M150-D-12 | — | — | — |
| AH | EVAP leak detection pump solenoid valve | — | — | — | — | — | — | — | — |
| B | Brake switch | — | W63 | — | 0.5 | M150-A-15 | — | — | — |
| C | Power steering pressure switch | — | W64 | — | 0.5 | M150-A-16 | — | — | — |
| D | Boost control solenoid (turbo) | — | W41 | — | 0.5 | RLY1-R-OUT | — | — | — |
| E | Boost control solenoid (turbo) | — | W45 | — | 0.5 | RLY2-R-OUT | — | — | — |
| F | A/C request | — | W65 | — | 0.5 | M150-A-17 | — | — | — |
| G | NC | — | — | — | — | — | — | — | — |
| H | Neutral switch | — | W66 | — | 0.5 | M150-D-9 | — | — | — |
| I | Clutch switch | — | W67 | — | 0.5 | M150-D-10 | — | — | — |
| J | VTCS vacuum switch | — | W68 | — | 0.5 | M150-D-11 | — | — | — |
| K | NC | — | — | — | — | — | — | — | — |
| L | +5V sensor supply | — | W22 | — | 0.5 | M150-A-10 | — | — | — |
| M | Knock sensor | — | W25 | — | 0.5 | M150-D-7 | — | — | — |
| N | Intake air temperature (IAT) | — | W59 | — | 0.5 | M150-D-5 | — | — | — |
| O | Signal ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| P | Coolant temperature (ECT) | — | W34 | — | 0.5 | M150-D-3 | — | — | — |
| Q | NC | — | — | — | — | — | — | — | — |
| R | Intake air temperature 2 (IAT2, turbo) | — | W58 | — | 0.5 | M150-D-4 | — | — | — |
| S | Ignition switch (IG1) sense | — | — | — | — | — | — | — | — |
| T | Generator output voltage (terminal P) | — | — | — | — | — | — | — | — |
| U | NC | — | — | — | — | — | — | — | — |
| V | Throttle position (TPS) | — | W33 | — | 0.5 | M150-C-15 | — | — | — |
| W | Front O2 signal | — | W57 | — | 0.5 | M150-A-12 | — | — | — |
| X | Mass air flow (MAF) | — | W32 | — | 0.5 | M150-C-14 | — | — | — |
| Y | NC | — | — | — | — | — | — | — | — |
| Z | TCM (automatic only) | — | — | — | — | — | — | — | — |
RLY1-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W43 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W44 | — | 0.5 | M150-C-27 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W42 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W41 | — | 0.5 | OEM-4-D | — | — | — |
RLY2-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W47 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W48 | — | 0.5 | M150-C-28 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W46 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W45 | — | 0.5 | OEM-4-E | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-4-O | — | — | — |
| 1 | — | — | W16 | — | 0.5 | M150-A-26 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | M150-A-27 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | M150-A-33 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | M150-A-34 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | M150-D-15 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | M150-D-16 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-2-P | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-4-AF | — | — | — |
| 1 | — | — | W3 | — | 0.85 | M150-B-13 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M150-B-19 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M150-C-26 | — | — | — |
| 1 | — | — | W42 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W43 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
| 1 | — | — | W46 | — | 0.5 | RLY2-R-IN | — | — | — |
| 1 | — | — | W47 | — | 0.5 | RLY2-R-COIL+ | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-3-A | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-3-B | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-4-A | — | — | — |
| 1 | — | — | W10 | — | 0.85 | M150-A-24 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | M150-A-25 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | M150-A-32 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | M150-C-10 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | M150-C-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-2-A | Injector 1 | injector_out | M150-C-19 | Peak Hold Injector 1 | injector_out | corroborated | |
| OEM-2-B | Cooling fan relay | low_side_out | M150-B-9 | Low Side Injector 3 | injector_out | corroborated | |
| OEM-2-C | Condenser fan relay | low_side_out | M150-B-15 | Low Side Injector 4 | injector_out | corroborated | |
| OEM-2-D | Injector 2 | injector_out | M150-C-23 | Low Side Injector 1 | injector_out | corroborated | |
| OEM-2-E | EGR valve | low_side_out | M150-B-23 | Peak Hold Injector 10 | injector_out | corroborated | |
| OEM-2-F | EGR valve | low_side_out | M150-B-24 | Peak Hold Injector 11 | injector_out | corroborated | |
| OEM-2-G | Injector 3 | injector_out | M150-C-20 | Peak Hold Injector 2 | injector_out | corroborated | |
| OEM-2-H | EGR valve | low_side_out | M150-B-25 | Peak Hold Injector 12 | injector_out | corroborated | |
| OEM-2-I | EGR valve | low_side_out | — | — | — | corroborated | |
| OEM-2-J | Injector 4 | injector_out | M150-C-24 | Low Side Injector 2 | injector_out | corroborated | |
| OEM-2-K | A/C clutch relay | low_side_out | M150-B-8 | Low Side Injector 5 | injector_out | corroborated | |
| OEM-2-L | NC | — | — | — | — | single_source | |
| OEM-2-M | Fuel pump relay | low_side_out | M150-B-14 | Low Side Injector 6 | injector_out | corroborated | |
| OEM-2-N | VTCS solenoid (intake butterflies) | low_side_out | — | — | — | corroborated | |
| OEM-2-O | Fuel pump relay (non-immobiliser) | low_side_out | M150-C-22 | Peak Hold Injector 4 | injector_out | corroborated | |
| OEM-2-P | ISC valve +14V feed | power_in | M150-B-13 + M150-B-19 + M150-C-26 + RLY1-R-COIL+ + RLY1-R-IN + RLY2-R-COIL+ + RLY2-R-IN | Battery Positive + Battery Positive + Battery Positive + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | corroborated | |
| OEM-2-Q | ISC valve low side | low_side_out | M150-B-22 | Peak Hold Injector 9 | injector_out | corroborated | |
| OEM-2-R | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | corroborated | |
| OEM-3-A | Power ground | ground | M150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11 | Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2 | ground | corroborated | |
| OEM-3-B | Power ground | ground | M150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11 | Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2 | ground | corroborated | |
| OEM-3-C | Purge solenoid valve | low_side_out | — | — | — | corroborated | |
| OEM-3-D | EGR boost solenoid | — | — | — | — | conflict | |
| OEM-3-E | NC | — | — | — | — | single_source | |
| OEM-3-F | Ignition 1 (coils 1+4, wasted spark) | ignition_out | M150-C-3 | Low Side Ignition 1 | ignition_out | corroborated | |
| OEM-3-G | NC | — | — | — | — | single_source | |
| OEM-3-H | Main relay | low_side_out | M150-C-21 | Peak Hold Injector 3 | injector_out | corroborated | |
| OEM-3-I | Ignition 2 (coils 2+3, wasted spark) | ignition_out | M150-C-4 | Low Side Ignition 2 | ignition_out | corroborated | |
| OEM-3-J | Front O2 heater | low_side_out | M150-C-29 | Peak Hold Injector 7 | injector_out | corroborated | |
| OEM-3-K | EVAP leak detection pump | low_side_out | — | — | — | corroborated | |
| OEM-3-L | NC | — | — | — | — | single_source | |
| OEM-3-M | Alternator control | low_side_out | — | — | — | corroborated | |
| OEM-3-N | NC | — | — | — | — | single_source | |
| OEM-3-O | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-3-P | Rear O2 heater | low_side_out | M150-C-30 | Peak Hold Injector 8 | injector_out | corroborated | |
| OEM-3-Q | Data link connector (K-line) | serial | — | — | — | corroborated | |
| OEM-3-R | NC | — | — | — | — | single_source | |
| OEM-3-S | Immobiliser | digital_in | M150-A-23 | Digital Input 1 | digital_in | corroborated | |
| OEM-3-T | Vehicle speed | digital_in | M150-D-8 | Universal Digital Input 3 | digital_in | corroborated | |
| OEM-3-U | Charge lamp | low_side_out | — | — | — | corroborated | |
| OEM-3-V | Cam position (CMP) | trigger_in | M150-D-2 | Universal Digital Input 2 | digital_in | corroborated | |
| OEM-3-W | NC | — | — | — | — | single_source | |
| OEM-3-X | NC | — | — | — | — | single_source | |
| OEM-3-Y | Crank position (CKP) | trigger_in | M150-D-1 | Universal Digital Input 1 | digital_in | corroborated | |
| OEM-3-Z | NC | — | — | — | — | single_source | |
| OEM-4-A | Power ground | ground | M150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11 | Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2 | ground | corroborated | |
| OEM-4-AA | Rear O2 signal | lambda_nb_in | M150-A-11 | Lambda Narrow Input 1 | lambda_nb_in | corroborated | |
| OEM-4-AB | NC | — | — | — | — | single_source | |
| OEM-4-AC | Data link connector (DLC TEN, turbo) | serial | — | — | — | BrY | single_source |
| OEM-4-AD | Fuel level | analog_in | M150-C-17 | Analogue Voltage Input 4 | analog_in | corroborated | |
| OEM-4-AE | BARO/MAP sensor (turbo boost pressure) | analog_in | M150-C-16 | Analogue Voltage Input 3 | analog_in | LY | single_source |
| OEM-4-AF | ECU power +14V (main relay) | power_in | M150-B-13 + M150-B-19 + M150-C-26 + RLY1-R-COIL+ + RLY1-R-IN + RLY2-R-COIL+ + RLY2-R-IN | Battery Positive + Battery Positive + Battery Positive + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | corroborated | |
| OEM-4-AG | Constant +12V | power_in | M150-D-12 | Battery Backup | power_in | corroborated | |
| OEM-4-AH | EVAP leak detection pump solenoid valve | low_side_out | — | — | — | corroborated | |
| OEM-4-B | Brake switch | digital_in | M150-A-15 | Digital Input 2 | digital_in | corroborated | |
| OEM-4-C | Power steering pressure switch | digital_in | M150-A-16 | Digital Input 3 | digital_in | corroborated | |
| OEM-4-D | Boost control solenoid (turbo) | high_side_out | RLY1-R-OUT | Relay contact output (switched +12 V to load) | power_out | Y | single_source |
| OEM-4-E | Boost control solenoid (turbo) | high_side_out | RLY2-R-OUT | Relay contact output (switched +12 V to load) | power_out | Y | single_source |
| OEM-4-F | A/C request | digital_in | M150-A-17 | Digital Input 4 | digital_in | corroborated | |
| OEM-4-G | NC | — | — | — | — | single_source | |
| OEM-4-H | Neutral switch | digital_in | M150-D-9 | Universal Digital Input 4 | digital_in | corroborated | |
| OEM-4-I | Clutch switch | digital_in | M150-D-10 | Universal Digital Input 5 | digital_in | corroborated | |
| OEM-4-J | VTCS vacuum switch | digital_in | M150-D-11 | Universal Digital Input 6 | digital_in | corroborated | |
| OEM-4-K | NC | — | — | — | — | single_source | |
| OEM-4-L | +5V sensor supply | vref | M150-A-10 | Sensor 5.0V C1 | vref | corroborated | |
| OEM-4-M | Knock sensor | knock_in | M150-D-7 | Knock Input 1 | knock_in | corroborated | |
| OEM-4-N | Intake air temperature (IAT) | temp_in | M150-D-5 | Analogue Temperature Input 3 | temp_in | corroborated | |
| OEM-4-O | Signal ground | sensor_ground | M150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16 | Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-4-P | Coolant temperature (ECT) | temp_in | M150-D-3 | Analogue Temperature Input 1 | temp_in | corroborated | |
| OEM-4-Q | NC | — | — | — | — | single_source | |
| OEM-4-R | Intake air temperature 2 (IAT2, turbo) | temp_in | M150-D-4 | Analogue Temperature Input 2 | temp_in | VY | single_source |
| OEM-4-S | Ignition switch (IG1) sense | digital_in | — | — | — | corroborated | |
| OEM-4-T | Generator output voltage (terminal P) | — | — | — | — | corroborated | |
| OEM-4-U | NC | — | — | — | — | single_source | |
| OEM-4-V | Throttle position (TPS) | analog_in | M150-C-15 | Analogue Voltage Input 2 | analog_in | corroborated | |
| OEM-4-W | Front O2 signal | lambda_nb_in | M150-A-12 | Lambda Narrow Input 2 | lambda_nb_in | corroborated | |
| OEM-4-X | Mass air flow (MAF) | analog_in | M150-C-14 | Analogue Voltage Input 1 | analog_in | corroborated | |
| OEM-4-Y | NC | — | — | — | — | single_source | |
| OEM-4-Z | TCM (automatic only) | — | — | — | — | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-2-P | SP-14V-1 | 0.85 | no route | ISC valve +14V feed | — | |
| W2 | OEM-4-AF | SP-14V-1 | 0.85 | no route | ECU power +14V (main relay) | — | |
| W3 | SP-14V-1 | M150-B-13 | 0.85 | no route | Battery Positive | — | |
| W4 | SP-14V-1 | M150-B-19 | 0.85 | no route | Battery Positive | — | |
| W5 | SP-14V-1 | M150-C-26 | 0.85 | no route | Battery Positive | — | |
| W6 | OEM-4-AG | M150-D-12 | 0.85 | no route | Constant +12V | — | |
| W7 | OEM-3-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W8 | OEM-3-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W9 | OEM-4-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W10 | SP-GND-1 | M150-A-24 | 0.85 | no route | Battery Negative 3 | — | |
| W11 | SP-GND-1 | M150-A-25 | 0.85 | no route | Battery Negative 4 | — | |
| W12 | SP-GND-1 | M150-A-32 | 0.85 | no route | Battery Negative 5 | — | |
| W13 | SP-GND-1 | M150-C-10 | 0.85 | no route | Battery Negative 1 | — | |
| W14 | SP-GND-1 | M150-C-11 | 0.85 | no route | Battery Negative 2 | — | |
| W15 | OEM-4-O | SP-0V-1 | 0.5 | no route | Signal ground | — | |
| W16 | SP-0V-1 | M150-A-26 | 0.5 | no route | Sensor 0V C1 | — | |
| W17 | SP-0V-1 | M150-A-27 | 0.5 | no route | Sensor 0V C2 | — | |
| W18 | SP-0V-1 | M150-A-33 | 0.5 | no route | Sensor 0V B1 | — | |
| W19 | SP-0V-1 | M150-A-34 | 0.5 | no route | Sensor 0V A1 | — | |
| W20 | SP-0V-1 | M150-D-15 | 0.5 | no route | Sensor 0V A | — | |
| W21 | SP-0V-1 | M150-D-16 | 0.5 | no route | Sensor 0V B | — | |
| W22 | OEM-4-L | M150-A-10 | 0.5 | no route | +5V sensor supply | — | |
| W23 | OEM-3-Y | M150-D-1 | 0.5 | no route | Crank position (CKP) | — | |
| W24 | OEM-3-V | M150-D-2 | 0.5 | no route | Cam position (CMP) | — | |
| W25 | OEM-4-M | M150-D-7 | 0.5 | no route | Knock sensor | — | |
| W26 | OEM-3-F | M150-C-3 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W27 | OEM-3-I | M150-C-4 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W28 | OEM-2-A | M150-C-19 | 0.5 | no route | Injector 1 | — | |
| W29 | OEM-2-D | M150-C-23 | 0.5 | no route | Injector 2 | — | |
| W30 | OEM-2-G | M150-C-20 | 0.5 | no route | Injector 3 | — | |
| W31 | OEM-2-J | M150-C-24 | 0.5 | no route | Injector 4 | — | |
| W32 | OEM-4-X | M150-C-14 | 0.5 | no route | Mass air flow (MAF) | — | |
| W33 | OEM-4-V | M150-C-15 | 0.5 | no route | Throttle position (TPS) | — | |
| W34 | OEM-4-P | M150-D-3 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W35 | OEM-2-B | M150-B-9 | 0.5 | no route | Cooling fan relay | — | |
| W36 | OEM-2-C | M150-B-15 | 0.5 | no route | Condenser fan relay | — | |
| W37 | OEM-2-K | M150-B-8 | 0.5 | no route | A/C clutch relay | — | |
| W38 | OEM-2-M | M150-B-14 | 0.5 | no route | Fuel pump relay | — | |
| W39 | OEM-3-H | M150-C-21 | 0.5 | no route | Main relay | — | |
| W40 | OEM-2-O | M150-C-22 | 0.5 | no route | Fuel pump relay (non-immobiliser) | — | |
| W41 | OEM-4-D | RLY1-R-OUT | 0.5 | no route | Boost control solenoid (turbo) | — | |
| W42 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W43 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W44 | RLY1-R-COIL- | M150-C-27 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W45 | OEM-4-E | RLY2-R-OUT | 0.5 | no route | Boost control solenoid (turbo) | — | |
| W46 | SP-14V-1 | RLY2-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W47 | SP-14V-1 | RLY2-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W48 | RLY2-R-COIL- | M150-C-28 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W49 | OEM-3-J | M150-C-29 | 0.5 | no route | Front O2 heater | — | |
| W50 | OEM-3-P | M150-C-30 | 0.5 | no route | Rear O2 heater | — | |
| W51 | OEM-2-Q | M150-B-22 | 0.5 | no route | ISC valve low side | — | |
| W52 | OEM-2-E | M150-B-23 | 0.5 | no route | EGR valve | — | |
| W53 | OEM-2-F | M150-B-24 | 0.5 | no route | EGR valve | — | |
| W54 | OEM-2-H | M150-B-25 | 0.5 | no route | EGR valve | — | |
| W55 | OEM-4-AE | M150-C-16 | 0.5 | no route | BARO/MAP sensor (turbo boost pressure) | — | |
| W56 | OEM-4-AA | M150-A-11 | 0.5 | no route | Rear O2 signal | — | |
| W57 | OEM-4-W | M150-A-12 | 0.5 | no route | Front O2 signal | — | |
| W58 | OEM-4-R | M150-D-4 | 0.5 | no route | Intake air temperature 2 (IAT2, turbo) | — | |
| W59 | OEM-4-N | M150-D-5 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W60 | OEM-4-AD | M150-C-17 | 0.5 | no route | Fuel level | — | |
| W61 | OEM-3-T | M150-D-8 | 0.5 | no route | Vehicle speed | — | |
| W62 | OEM-3-S | M150-A-23 | 0.5 | no route | Immobiliser | — | |
| W63 | OEM-4-B | M150-A-15 | 0.5 | no route | Brake switch | — | |
| W64 | OEM-4-C | M150-A-16 | 0.5 | no route | Power steering pressure switch | — | |
| W65 | OEM-4-F | M150-A-17 | 0.5 | no route | A/C request | — | |
| W66 | OEM-4-H | M150-D-9 | 0.5 | no route | Neutral switch | — | |
| W67 | OEM-4-I | M150-D-10 | 0.5 | no route | Clutch switch | — | |
| W68 | OEM-4-J | M150-D-11 | 0.5 | no route | VTCS vacuum switch | — |
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 (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-3-V ↔ M150-D-2 | OEM-3-V "Cam position (CMP)" [trigger_in] is wired to M150-D-2 "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-3-Y ↔ M150-D-1 | OEM-3-Y "Crank position (CKP)" [trigger_in] is wired to M150-D-1 "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-2-B ↔ M150-B-9 | OEM-2-B "Cooling fan relay" [low_side_out] is wired to M150-B-9 "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-C ↔ M150-B-15 | OEM-2-C "Condenser fan relay" [low_side_out] is wired to M150-B-15 "Low Side Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-E ↔ M150-B-23 | OEM-2-E "EGR valve" [low_side_out] is wired to M150-B-23 "Peak Hold Injector 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-F ↔ M150-B-24 | OEM-2-F "EGR valve" [low_side_out] is wired to M150-B-24 "Peak Hold Injector 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-H ↔ M150-B-25 | OEM-2-H "EGR valve" [low_side_out] is wired to M150-B-25 "Peak Hold Injector 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-K ↔ M150-B-8 | OEM-2-K "A/C clutch relay" [low_side_out] is wired to M150-B-8 "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-M ↔ M150-B-14 | OEM-2-M "Fuel pump relay" [low_side_out] is wired to M150-B-14 "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 ↔ M150-C-22 | OEM-2-O "Fuel pump relay (non-immobiliser)" [low_side_out] is wired to M150-C-22 "Peak Hold Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-Q ↔ M150-B-22 | OEM-2-Q "ISC valve low side" [low_side_out] is wired to M150-B-22 "Peak Hold Injector 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-H ↔ M150-C-21 | OEM-3-H "Main relay" [low_side_out] is wired to M150-C-21 "Peak Hold Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-J ↔ M150-C-29 | OEM-3-J "Front O2 heater" [low_side_out] is wired to M150-C-29 "Peak Hold Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-P ↔ M150-C-30 | OEM-3-P "Rear O2 heater" [low_side_out] is wired to M150-C-30 "Peak Hold Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 15 optional OEM pins are not mapped: OEM-2-I EGR valve; OEM-2-N VTCS solenoid (intake butterflies); OEM-2-R Malfunction indicator lamp (MIL); OEM-3-C Purge solenoid valve; OEM-3-D EGR boost solenoid; OEM-3-K EVAP leak detection pump; OEM-3-M Alternator control; OEM-3-O Tachometer output; OEM-3-Q Data link connector (K-line); OEM-3-U Charge lamp; OEM-4-AC Data link connector (DLC TEN, turbo); OEM-4-AH EVAP leak detection pump solenoid valve; OEM-4-S Ignition switch (IG1) sense; OEM-4-T Generator output voltage (terminal P); OEM-4-Z TCM (automatic only) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-17. Review every wire against both manuals before building. Not wired: - OEM-4 S: Ignition switch (IG1) sense: key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MoTeC M150 has no dedicated key-on input - OEM-2 I: EGR valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-2 N: VTCS solenoid (intake butterflies): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-2 R: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-3 C: Purge solenoid valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-3 K: EVAP leak detection pump: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-3 M: Alternator control: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-3 U: Charge lamp: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-4 AH: EVAP leak detection pump solenoid valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M150 - OEM-3 O: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MoTeC M150 - OEM-3 Q: Data link connector (K-line): no free k_line on MoTeC M150 - OEM-4 AC: Data link connector (DLC TEN, turbo): no free k_line on MoTeC M150 - OEM-3 D: EGR boost solenoid: not classified in the library; wire by hand - OEM-4 T: Generator output voltage (terminal P): not classified in the library; wire by hand - OEM-4 Z: TCM (automatic only): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | oem_manual | 2005 Mazda MX-5 Miata Engine Performance Control System (PCM terminal voltage reference, BP and BP WITH TC) | https://trull.org/alex/pubmirror/www.mellens.net/mazda/Mazda-Miata-2005/engine_control_system.pdf | — | — | — |
| 4 | vendor_doc | Adaptronic eSel039 Select Plugin ECU for Mazda MX5 / Miata NB8B/C (OEM ECU pinout) | https://www.miataturbo.net/attachments/ecus-tuning-54/04-msm-ecu-pinout-104032/nb8bc_oem_ecu_pinouts-224948d1602912806 | — | — | — |
| 4 | vendor_doc | Bosch relay catalogue (mini ISO relays) | https://www.bosch-ibusiness.com/media/downloads/kataloge/relay/2025_10_bosch_relay_catalogue.pdf | archive | 2026-10-05 | 20344cff1ef3 |
| 4 | community_copy | Honda S2000 Service Manual 2000–2008, Fuel and Emissions Systems | https://www.s2000.wiki/view/images/7/7f/Service_Manual_2000-2008.pdf | archive | 2026-10-05 | a470cfc928e9 |
| 4 | vendor_doc | Link G4X MX5NB2X install manual (NB2 2001-05) | https://linkecu.com/documentation/MX5XNB2.pdf | archive | 2026-10-05 | 741efdd9f2c8 |
| 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 |
| 4 | vendor_doc | Omron G8V-RH-1C7T-R-DC12 high-current micro 280 automotive relay datasheet | https://www.alldatasheet.com/datasheet-pdf/pdf/333797/OMRON/G8V-RH-1C7T-R-DC12.html | — | 2026-10-05 | 764a0505a941 |