BMW 3 Series E36 1990–2000 (M50/M52) → MoTeC M190 13190 (auto)
BMW 3 Series E36 1990–2000 (M50/M52) — 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 | 59 wires · 7 connectors · 1 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-X-54 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-14V-1 | M190-B-H | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | M190-B-J | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | M190-B-K | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | M190-B-L | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-X-26 | M190-A-38 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-X-15 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-X-34 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-X-55 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-X-6 | 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-X-28 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-X-40 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-X-43 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-X-44 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-X-71 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | M190-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | M190-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-0V-1 | M190-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | SP-0V-1 | M190-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | SP-0V-1 | M190-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-0V-1 | M190-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-0V-1 | M190-C-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-X-59 | M190-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-X-16 | M190-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-X-17 | M190-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-X-70 | M190-C-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-X-69 | M190-C-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-X-50 | M190-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-X-51 | M190-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-X-52 | M190-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-X-23 | M190-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-X-25 | M190-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-X-24 | M190-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-X-33 | M190-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-X-32 | M190-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-X-31 | M190-B-U | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-X-5 | M190-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-X-3 | M190-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-X-4 | M190-B-V | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-X-1 | M190-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-X-27 | M190-B-b | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-X-38 | M190-B-A | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-X-2 | M190-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-X-29 | M190-B-S | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-X-36 | M190-A-48 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-X-7 | M190-B-a | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-X-8 | M190-A-40 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-X-41 | M190-C-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-X-73 | M190-C-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-X-13 | M190-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-X-78 | M190-C-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-X-77 | M190-C-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-X-42 | M190-C-25 | 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-38 | M190-A-18 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | M190-A-18 | M190-A-16 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | M190-A-18 | M190-B-H | open (OL) | sensor ground must not touch +12 V supply | |
| 4 | M190-A-38 | M190-A-16 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 5 | M190-B-G | M190-A-16 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | M190-B-G | M190-A-38 | open (OL) | power ground must not touch +12 V supply | |
| 7 | M190-B-G | M190-B-H | open (OL) | power ground must not touch +12 V supply | |
| 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 | — | W46 | — | 0.5 | OEM-X-1 | — | — | — |
| 10 | Low Side Injector 8 | — | — | — | — | — | — | — | — |
| 11 | Peak Hold Injector 1 | — | W40 | — | 0.5 | OEM-X-33 | — | — | — |
| 12 | Peak Hold Injector 2 | — | W43 | — | 0.5 | OEM-X-5 | — | — | — |
| 13 | Analogue Voltage Input 11 | — | — | — | — | — | — | — | — |
| 14 | Digital Input 2 | — | — | — | — | — | — | — | — |
| 15 | RS232 Receive | — | — | — | — | — | — | — | — |
| 16 | Sensor 5.0V C3 | — | W29 | — | 0.5 | OEM-X-59 | — | — | — |
| 17 | Low Side Injector 11 | — | — | — | — | — | — | — | — |
| 18 | Sensor 0V C1 | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor 0V C2 | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Low Side Injector 2 | — | W44 | — | 0.5 | OEM-X-3 | — | — | — |
| 20 | Sensor 0V C3 | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Digital Input 1 | — | — | — | — | — | — | — | — |
| 22 | LIN Bus | — | — | — | — | — | — | — | — |
| 23 | RS232 Transmit | — | — | — | — | — | — | — | — |
| 24 | CAN Bus 2 High | — | — | — | — | — | — | — | — |
| 25 | Low Side Injector 7 | — | — | — | — | — | — | — | — |
| 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 | — | W41 | — | 0.5 | OEM-X-32 | — | — | — |
| 30 | Digital Input 3 | — | — | — | — | — | — | — | — |
| 31 | CAN Bus 2 Low | — | — | — | — | — | — | — | — |
| 32 | Low Side Injector 10 | — | — | — | — | — | — | — | — |
| 33 | Peak Hold Injector 4 | — | — | — | — | — | — | — | — |
| 34 | Analogue Voltage Input 13 | — | — | — | — | — | — | — | — |
| 35 | Analogue Voltage Input 12 | — | — | — | — | — | — | — | — |
| 36 | Peak Hold Injector 7 | — | — | — | — | — | — | — | — |
| 37 | Digital Input 4 | — | — | — | — | — | — | — | — |
| 38 | Battery Backup | — | W6 | — | 0.85 | OEM-X-26 | — | — | — |
| 39 | CAN Bus 3 High | — | — | — | — | — | — | — | — |
| 4 | Low Side Injector 12 | — | — | — | — | — | — | — | — |
| 40 | Low Side Injector 6 | — | W53 | — | 0.5 | OEM-X-8 | — | — | — |
| 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 | — | — | — | — | — | — | — | — |
| 48 | Low Side Injector 5 | — | W51 | — | 0.5 | OEM-X-36 | — | — | — |
| 49 | Peak Hold Injector 11 | — | — | — | — | — | — | — | — |
| 5 | Low Side Injector 4 | — | W49 | — | 0.5 | OEM-X-2 | — | — | — |
| 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 | — | — | — | — | — | — | — | — |
| 7 | Lambda Narrow Input 1 | — | W56 | — | 0.5 | OEM-X-13 | — | — | — |
| 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 | — | W48 | — | 0.5 | OEM-X-38 | — | — | — |
| B | Half Bridge Output 2 | — | — | — | — | — | — | — | — |
| 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 | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| J | Battery Positive 2 | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| K | Battery Positive 3 | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| L | Battery Positive 4 | — | W5 | — | 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 | — | W50 | — | 0.5 | OEM-X-29 | — | — | — |
| T | Low Side Injector 6 | — | — | — | — | — | — | — | — |
| U | Low Side Injector 1 | — | W42 | — | 0.5 | OEM-X-31 | — | — | — |
| V | Low Side Injector 2 | — | W45 | — | 0.5 | OEM-X-4 | — | — | — |
| 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 | — | W52 | — | 0.5 | OEM-X-7 | — | — | — |
| b | Low Side Injector 3 | — | W47 | — | 0.5 | OEM-X-27 | — | — | — |
| 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 | — | W37 | — | 0.5 | OEM-X-23 | — | — | — |
| 10 | Universal Digital Input 8 | — | — | — | — | — | — | — | — |
| 11 | Analogue Voltage Input 6 | — | — | — | — | — | — | — | — |
| 12 | Analogue Voltage Input 7 | — | — | — | — | — | — | — | — |
| 13 | Analogue Voltage Input 9 | — | — | — | — | — | — | — | — |
| 14 | Sensor 0V A1 | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Sensor 0V A2 | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Low Side Ignition 1 | — | W34 | — | 0.5 | OEM-X-50 | — | — | — |
| 17 | Universal Digital Input 7 | — | — | — | — | — | — | — | — |
| 18 | Universal Digital Input 1 | — | W30 | — | 0.5 | OEM-X-16 | — | — | — |
| 19 | Universal Digital Input 12 | — | — | — | — | — | — | — | — |
| 2 | Low Side Ignition 3 | — | W36 | — | 0.5 | OEM-X-52 | — | — | — |
| 20 | Universal Digital Input 11 | — | — | — | — | — | — | — | — |
| 21 | Universal Digital Input 10 | — | — | — | — | — | — | — | — |
| 22 | Universal Digital Input 9 | — | — | — | — | — | — | — | — |
| 23 | Sensor 0V B1 | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 25 | Universal Digital Input 3 | — | W59 | — | 0.5 | OEM-X-42 | — | — | — |
| 26 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 27 | Universal Digital Input 4 | — | — | — | — | — | — | — | — |
| 28 | Analogue Voltage Input 4 | — | — | — | — | — | — | — | — |
| 29 | Analogue Voltage Input 5 | — | — | — | — | — | — | — | — |
| 3 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 30 | Sensor 0V B2 | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 32 | Universal Digital Input 2 | — | W31 | — | 0.5 | OEM-X-17 | — | — | — |
| 33 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 34 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 35 | Analogue Voltage Input 3 | — | — | — | — | — | — | — | — |
| 36 | Analogue Voltage Input 2 | — | W55 | — | 0.5 | OEM-X-73 | — | — | — |
| 37 | Analogue Temperature Input 1 | — | W57 | — | 0.5 | OEM-X-78 | — | — | — |
| 38 | Analogue Temperature Input 3 | — | — | — | — | — | — | — | — |
| 39 | Analogue Temperature Input 2 | — | W58 | — | 0.5 | OEM-X-77 | — | — | — |
| 4 | Low Side Ignition 6 | — | W39 | — | 0.5 | OEM-X-24 | — | — | — |
| 40 | Universal Digital Input 5 | — | — | — | — | — | — | — | — |
| 41 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 42 | Analogue Voltage Input 1 | — | W54 | — | 0.5 | OEM-X-41 | — | — | — |
| 43 | Knock Input 3 | — | — | — | — | — | — | — | — |
| 44 | Knock Input 2 | — | W33 | — | 0.5 | OEM-X-69 | — | — | — |
| 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 | — | W38 | — | 0.5 | OEM-X-25 | — | — | — |
| 50 | Sensor 5.0V B1 | — | — | — | — | — | — | — | — |
| 51 | Knock Input 1 | — | W32 | — | 0.5 | OEM-X-70 | — | — | — |
| 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 | — | W35 | — | 0.5 | OEM-X-51 | — | — | — |
| 9 | Low Side Ignition 7 | — | — | — | — | — | — | — | — |
OEM-X
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Fuel pump relay control | — | W46 | — | 0.5 | M190-A-1 | — | — | — |
| 13 | O2 sensor signal | — | W56 | — | 0.5 | M190-A-7 | — | — | — |
| 15 | Ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 16 | Crank position sensor (+) | — | W30 | — | 0.5 | M190-C-18 | — | — | — |
| 17 | Camshaft position sensor (Hall) | — | W31 | — | 0.5 | M190-C-32 | — | — | — |
| 2 | Idle speed control valve (close winding) | — | W49 | — | 0.5 | M190-A-5 | — | — | — |
| 23 | Ignition coil cylinder 4 | — | W37 | — | 0.5 | M190-C-1 | — | — | — |
| 24 | Ignition coil cylinder 6 | — | W39 | — | 0.5 | M190-C-4 | — | — | — |
| 25 | Ignition coil cylinder 5 | — | W38 | — | 0.5 | M190-C-5 | — | — | — |
| 26 | Battery voltage (constant +12V) | — | W6 | — | 0.85 | M190-A-38 | — | — | — |
| 27 | Main relay control | — | W47 | — | 0.5 | M190-B-b | — | — | — |
| 28 | Ground (electronics + sensor shielding) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 29 | Idle speed control valve (open winding) | — | W50 | — | 0.5 | M190-B-S | — | — | — |
| 3 | Injector cylinder 5 | — | W44 | — | 0.5 | M190-A-2 | — | — | — |
| 31 | Injector cylinder 3 | — | W42 | — | 0.5 | M190-B-U | — | — | — |
| 32 | Injector cylinder 2 | — | W41 | — | 0.5 | M190-A-3 | — | — | — |
| 33 | Injector cylinder 1 | — | W40 | — | 0.5 | M190-A-11 | — | — | — |
| 34 | Ground (output stages) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 36 | Evap purge solenoid | — | W51 | — | 0.5 | M190-A-48 | — | — | — |
| 38 | O2 sensor heater relay control | — | W48 | — | 0.5 | M190-B-A | — | — | — |
| 4 | Injector cylinder 6 | — | W45 | — | 0.5 | M190-B-V | — | — | — |
| 40 | O2 sensor signal ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 41 | Mass air flow (MAF) signal | — | W54 | — | 0.5 | M190-C-42 | — | — | — |
| 42 | Vehicle speed signal | — | W59 | — | 0.5 | M190-C-25 | — | — | — |
| 43 | Crank position sensor (-) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 44 | Sensor ground (IAT/ECT/TPS) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 45 | Shield ground | — | — | — | — | — | — | — | — |
| 47 | Tachometer output | — | — | — | — | — | — | — | — |
| 5 | Injector cylinder 4 | — | W43 | — | 0.5 | M190-A-12 | — | — | — |
| 50 | Ignition coil cylinder 1 | — | W34 | — | 0.5 | M190-C-16 | — | — | — |
| 51 | Ignition coil cylinder 2 | — | W35 | — | 0.5 | M190-C-8 | — | — | — |
| 52 | Ignition coil cylinder 3 | — | W36 | — | 0.5 | M190-C-2 | — | — | — |
| 54 | ECU power (+14V from main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 55 | Ground (ignition) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 56 | Ignition switch (terminal 15) | — | — | — | — | — | — | — | — |
| 59 | +5V sensor supply | — | W29 | — | 0.5 | M190-A-16 | — | — | — |
| 6 | Ground (injector output stages) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 69 | Knock sensor cylinders 4-6 | — | W33 | — | 0.5 | M190-C-44 | — | — | — |
| 7 | VANOS intake camshaft solenoid | — | W52 | — | 0.5 | M190-B-a | — | — | — |
| 70 | Knock sensor cylinders 1-3 | — | W32 | — | 0.5 | M190-C-51 | — | — | — |
| 71 | Knock sensor ground/shield | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 73 | Throttle position (TPS) | — | W55 | — | 0.5 | M190-C-36 | — | — | — |
| 77 | Intake air temperature (IAT) | — | W58 | — | 0.5 | M190-C-39 | — | — | — |
| 78 | Engine coolant temperature (ECT) | — | W57 | — | 0.5 | M190-C-37 | — | — | — |
| 8 | Check engine light (MIL) | — | W53 | — | 0.5 | M190-A-40 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-X-28 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-X-40 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-X-43 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-X-44 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-X-71 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | M190-A-18 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | M190-A-19 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | M190-A-20 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | M190-C-14 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | M190-C-15 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | M190-C-23 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | M190-C-30 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-X-54 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | M190-B-H | — | — | — |
| 1 | — | — | W3 | — | 0.85 | M190-B-J | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M190-B-K | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M190-B-L | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-X-15 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-X-34 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-X-55 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-X-6 | — | — | — |
| 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-X-1 | Fuel pump relay control | low_side_out | M190-A-1 | Low Side Injector 3 | injector_out | corroborated | |
| OEM-X-13 | O2 sensor signal | lambda_nb_in | M190-A-7 | Lambda Narrow Input 1 | lambda_nb_in | corroborated | |
| OEM-X-15 | 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 | corroborated | |
| OEM-X-16 | Crank position sensor (+) | trigger_in | M190-C-18 | Universal Digital Input 1 | digital_in | corroborated | |
| OEM-X-17 | Camshaft position sensor (Hall) | trigger_in | M190-C-32 | Universal Digital Input 2 | digital_in | corroborated | |
| OEM-X-2 | Idle speed control valve (close winding) | low_side_out | M190-A-5 | Low Side Injector 4 | injector_out | corroborated | |
| OEM-X-23 | Ignition coil cylinder 4 | ignition_out | M190-C-1 | Low Side Ignition 4 | ignition_out | corroborated | |
| OEM-X-24 | Ignition coil cylinder 6 | ignition_out | M190-C-4 | Low Side Ignition 6 | ignition_out | corroborated | |
| OEM-X-25 | Ignition coil cylinder 5 | ignition_out | M190-C-5 | Low Side Ignition 5 | ignition_out | corroborated | |
| OEM-X-26 | Battery voltage (constant +12V) | power_in | M190-A-38 | Battery Backup | power_in | corroborated | |
| OEM-X-27 | Main relay control | low_side_out | M190-B-b | Low Side Injector 3 | injector_out | corroborated | |
| OEM-X-28 | Ground (electronics + sensor shielding) | 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 | corroborated | |
| OEM-X-29 | Idle speed control valve (open winding) | low_side_out | M190-B-S | Low Side Injector 4 | injector_out | corroborated | |
| OEM-X-3 | Injector cylinder 5 | injector_out | M190-A-2 | Low Side Injector 2 | injector_out | corroborated | |
| OEM-X-31 | Injector cylinder 3 | injector_out | M190-B-U | Low Side Injector 1 | injector_out | corroborated | |
| OEM-X-32 | Injector cylinder 2 | injector_out | M190-A-3 | Low Side Injector 1 | injector_out | corroborated | |
| OEM-X-33 | Injector cylinder 1 | injector_out | M190-A-11 | Peak Hold Injector 1 | injector_out | corroborated | |
| OEM-X-34 | Ground (output stages) | 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 | corroborated | |
| OEM-X-36 | Evap purge solenoid | low_side_out | M190-A-48 | Low Side Injector 5 | injector_out | corroborated | |
| OEM-X-38 | O2 sensor heater relay control | low_side_out | M190-B-A | Half Bridge Output 1 | hbridge_out | corroborated | |
| OEM-X-4 | Injector cylinder 6 | injector_out | M190-B-V | Low Side Injector 2 | injector_out | corroborated | |
| OEM-X-40 | O2 sensor 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 | corroborated | |
| OEM-X-41 | Mass air flow (MAF) signal | analog_in | M190-C-42 | Analogue Voltage Input 1 | analog_in | corroborated | |
| OEM-X-42 | Vehicle speed signal | digital_in | M190-C-25 | Universal Digital Input 3 | digital_in | corroborated | |
| OEM-X-43 | Crank position sensor (-) | 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 | corroborated | |
| OEM-X-44 | Sensor ground (IAT/ECT/TPS) | 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 | corroborated | |
| OEM-X-45 | Shield ground | shield | — | — | — | corroborated | |
| OEM-X-47 | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-X-5 | Injector cylinder 4 | injector_out | M190-A-12 | Peak Hold Injector 2 | injector_out | corroborated | |
| OEM-X-50 | Ignition coil cylinder 1 | ignition_out | M190-C-16 | Low Side Ignition 1 | ignition_out | corroborated | |
| OEM-X-51 | Ignition coil cylinder 2 | ignition_out | M190-C-8 | Low Side Ignition 2 | ignition_out | corroborated | |
| OEM-X-52 | Ignition coil cylinder 3 | ignition_out | M190-C-2 | Low Side Ignition 3 | ignition_out | corroborated | |
| OEM-X-54 | ECU power (+14V from 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 | corroborated | |
| OEM-X-55 | Ground (ignition) | 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 | corroborated | |
| OEM-X-56 | Ignition switch (terminal 15) | digital_in | — | — | — | corroborated | |
| OEM-X-59 | +5V sensor supply | vref | M190-A-16 | Sensor 5.0V C3 | vref | corroborated | |
| OEM-X-6 | Ground (injector output stages) | 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 | corroborated | |
| OEM-X-69 | Knock sensor cylinders 4-6 | knock_in | M190-C-44 | Knock Input 2 | knock_in | corroborated | |
| OEM-X-7 | VANOS intake camshaft solenoid | low_side_out | M190-B-a | Low Side Injector 5 | injector_out | corroborated | |
| OEM-X-70 | Knock sensor cylinders 1-3 | knock_in | M190-C-51 | Knock Input 1 | knock_in | corroborated | |
| OEM-X-71 | Knock sensor ground/shield | 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 | corroborated | |
| OEM-X-73 | Throttle position (TPS) | analog_in | M190-C-36 | Analogue Voltage Input 2 | analog_in | corroborated | |
| OEM-X-77 | Intake air temperature (IAT) | temp_in | M190-C-39 | Analogue Temperature Input 2 | temp_in | corroborated | |
| OEM-X-78 | Engine coolant temperature (ECT) | temp_in | M190-C-37 | Analogue Temperature Input 1 | temp_in | corroborated | |
| OEM-X-8 | Check engine light (MIL) | low_side_out | M190-A-40 | Low Side Injector 6 | injector_out | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-X-54 | SP-14V-1 | 0.85 | no route | ECU power (+14V from main relay) | — | |
| W2 | SP-14V-1 | M190-B-H | 0.85 | no route | Battery Positive 1 | — | |
| W3 | SP-14V-1 | M190-B-J | 0.85 | no route | Battery Positive 2 | — | |
| W4 | SP-14V-1 | M190-B-K | 0.85 | no route | Battery Positive 3 | — | |
| W5 | SP-14V-1 | M190-B-L | 0.85 | no route | Battery Positive 4 | — | |
| W6 | OEM-X-26 | M190-A-38 | 0.85 | no route | Battery voltage (constant +12V) | — | |
| W7 | OEM-X-15 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W8 | OEM-X-34 | SP-GND-1 | 0.85 | no route | Ground (output stages) | — | |
| W9 | OEM-X-55 | SP-GND-1 | 0.85 | no route | Ground (ignition) | — | |
| W10 | OEM-X-6 | SP-GND-1 | 0.85 | no route | Ground (injector output stages) | — | |
| 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-X-28 | SP-0V-1 | 0.5 | no route | Ground (electronics + sensor shielding) | — | |
| W18 | OEM-X-40 | SP-0V-1 | 0.5 | no route | O2 sensor signal ground | — | |
| W19 | OEM-X-43 | SP-0V-1 | 0.5 | no route | Crank position sensor (-) | — | |
| W20 | OEM-X-44 | SP-0V-1 | 0.5 | no route | Sensor ground (IAT/ECT/TPS) | — | |
| W21 | OEM-X-71 | SP-0V-1 | 0.5 | no route | Knock sensor ground/shield | — | |
| W22 | SP-0V-1 | M190-A-18 | 0.5 | no route | Sensor 0V C1 | — | |
| W23 | SP-0V-1 | M190-A-19 | 0.5 | no route | Sensor 0V C2 | — | |
| W24 | SP-0V-1 | M190-A-20 | 0.5 | no route | Sensor 0V C3 | — | |
| W25 | SP-0V-1 | M190-C-14 | 0.5 | no route | Sensor 0V A1 | — | |
| W26 | SP-0V-1 | M190-C-15 | 0.5 | no route | Sensor 0V A2 | — | |
| W27 | SP-0V-1 | M190-C-23 | 0.5 | no route | Sensor 0V B1 | — | |
| W28 | SP-0V-1 | M190-C-30 | 0.5 | no route | Sensor 0V B2 | — | |
| W29 | OEM-X-59 | M190-A-16 | 0.5 | no route | +5V sensor supply | — | |
| W30 | OEM-X-16 | M190-C-18 | 0.5 | no route | Crank position sensor (+) | — | |
| W31 | OEM-X-17 | M190-C-32 | 0.5 | no route | Camshaft position sensor (Hall) | — | |
| W32 | OEM-X-70 | M190-C-51 | 0.5 | no route | Knock sensor cylinders 1-3 | — | |
| W33 | OEM-X-69 | M190-C-44 | 0.5 | no route | Knock sensor cylinders 4-6 | — | |
| W34 | OEM-X-50 | M190-C-16 | 0.5 | no route | Ignition coil cylinder 1 | — | |
| W35 | OEM-X-51 | M190-C-8 | 0.5 | no route | Ignition coil cylinder 2 | — | |
| W36 | OEM-X-52 | M190-C-2 | 0.5 | no route | Ignition coil cylinder 3 | — | |
| W37 | OEM-X-23 | M190-C-1 | 0.5 | no route | Ignition coil cylinder 4 | — | |
| W38 | OEM-X-25 | M190-C-5 | 0.5 | no route | Ignition coil cylinder 5 | — | |
| W39 | OEM-X-24 | M190-C-4 | 0.5 | no route | Ignition coil cylinder 6 | — | |
| W40 | OEM-X-33 | M190-A-11 | 0.5 | no route | Injector cylinder 1 | — | |
| W41 | OEM-X-32 | M190-A-3 | 0.5 | no route | Injector cylinder 2 | — | |
| W42 | OEM-X-31 | M190-B-U | 0.5 | no route | Injector cylinder 3 | — | |
| W43 | OEM-X-5 | M190-A-12 | 0.5 | no route | Injector cylinder 4 | — | |
| W44 | OEM-X-3 | M190-A-2 | 0.5 | no route | Injector cylinder 5 | — | |
| W45 | OEM-X-4 | M190-B-V | 0.5 | no route | Injector cylinder 6 | — | |
| W46 | OEM-X-1 | M190-A-1 | 0.5 | no route | Fuel pump relay control | — | |
| W47 | OEM-X-27 | M190-B-b | 0.5 | no route | Main relay control | — | |
| W48 | OEM-X-38 | M190-B-A | 0.5 | no route | O2 sensor heater relay control | — | |
| W49 | OEM-X-2 | M190-A-5 | 0.5 | no route | Idle speed control valve (close winding) | — | |
| W50 | OEM-X-29 | M190-B-S | 0.5 | no route | Idle speed control valve (open winding) | — | |
| W51 | OEM-X-36 | M190-A-48 | 0.5 | no route | Evap purge solenoid | — | |
| W52 | OEM-X-7 | M190-B-a | 0.5 | no route | VANOS intake camshaft solenoid | — | |
| W53 | OEM-X-8 | M190-A-40 | 0.5 | no route | Check engine light (MIL) | — | |
| W54 | OEM-X-41 | M190-C-42 | 0.5 | no route | Mass air flow (MAF) signal | — | |
| W55 | OEM-X-73 | M190-C-36 | 0.5 | no route | Throttle position (TPS) | — | |
| W56 | OEM-X-13 | M190-A-7 | 0.5 | no route | O2 sensor signal | — | |
| W57 | OEM-X-78 | M190-C-37 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W58 | OEM-X-77 | M190-C-39 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W59 | OEM-X-42 | M190-C-25 | 0.5 | no route | Vehicle speed signal | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | BMW-E36-DME-CONN | BMW | E36 DME (M3.1/M3.3.1) harness connector | 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 (11)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-X-16 ↔ M190-C-18 | OEM-X-16 "Crank position sensor (+)" [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-X-17 ↔ M190-C-32 | OEM-X-17 "Camshaft position sensor (Hall)" [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-X-38 ↔ M190-B-A | OEM-X-38 "O2 sensor heater relay control" [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. |
| info | NET_FAMILY | OEM-X-1 ↔ M190-A-1 | OEM-X-1 "Fuel pump relay control" [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-X-2 ↔ M190-A-5 | OEM-X-2 "Idle speed control valve (close winding)" [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-X-27 ↔ M190-B-b | OEM-X-27 "Main relay control" [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-X-29 ↔ M190-B-S | OEM-X-29 "Idle speed control valve (open winding)" [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-X-36 ↔ M190-A-48 | OEM-X-36 "Evap purge solenoid" [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-X-7 ↔ M190-B-a | OEM-X-7 "VANOS intake camshaft solenoid" [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-X-8 ↔ M190-A-40 | OEM-X-8 "Check engine light (MIL)" [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 | UNMAPPED | OEM | 3 optional OEM pins are not mapped: OEM-X-45 Shield ground; OEM-X-47 Tachometer output; OEM-X-56 Ignition switch (terminal 15) |
Accepted (0)
| Code | Subject | Reason | By |
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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-X 45: Shield ground: no shield pin on MoTeC M190 - OEM-X 56: Ignition switch (terminal 15): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MoTeC M190 has no dedicated key-on input - OEM-X 47: 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 BMWLink E36X (G4X) plug-in install manual | https://linkecu.com/documentation/E36X.pdf | archive | 2026-10-05 | 010cda3acd08 |
| 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 | community_copy | bimmer-service: Bosch Motronic M3.3.1 pinout (E36 M50) | https://www.bimmer-service.com/2025/11/17/bosch-motronic-m3-3-1-pinout-wiring-diagram/ | — | — | — |