BMW 3 Series E46 1998–2006 (M54) → Emtron KV12 (auto)
BMW 3 Series E46 1998–2006 (M54) — Emtron — KV12
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08
Before you start
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 1: read the Findings page before cutting any wire |
| Size of the job | 82 wires · 14 connectors · 6 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 3-1447221-4 |
| 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-X60001-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-X60001-9 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | KV12-D-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | KV12-D-2 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | KV12-D-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-X60001-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-X60001-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-X60001-6 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-X60005-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | KV12-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | KV12-B-34 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | KV12-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | KV12-C-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | KV12-C-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-X60002-20 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-X60002-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-X60002-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-X60002-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-X60003-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-X60003-17 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-X60003-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-X60003-20 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-X60003-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-X60003-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-X60003-25 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-X60003-28 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-X60004-12 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-X60004-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | SP-0V-1 | KV12-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | SP-0V-1 | KV12-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-X60003-7 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-X60004-14 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-X60004-9 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | SP-5V1-1 | KV12-D-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-X60003-8 | KV12-D-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | SP-0V-1 | KV12-D-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-X60003-2 | KV12-D-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | SP-0V-1 | KV12-D-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-X60003-29 | KV12-D-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-X60003-30 | KV12-D-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-X60005-3 | KV12-B-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-X60005-2 | KV12-B-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-X60005-1 | KV12-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-X60005-9 | KV12-B-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-X60005-8 | KV12-B-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-X60005-7 | KV12-B-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-X60003-33 | KV12-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-X60003-34 | KV12-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-X60003-35 | KV12-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-X60003-36 | KV12-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-X60003-37 | KV12-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-X60003-38 | KV12-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-X60003-48 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | SP-SHD-1 | KV12-D-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-X60003-43 | KV12-B-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-X60003-44 | KV12-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-X60003-46 | KV12-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-X60003-47 | KV12-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-X60001-1 | KV12-D-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-X60002-23 | KV12-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-X60004-10 | KV12-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-X60002-1 | KV12-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-X60002-13 | KV12-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-X60002-19 | KV12-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-X60002-7 | KV12-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-X60003-40 | KV12-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-X60003-41 | KV12-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-X60003-42 | KV12-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-X60003-45 | KV12-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-X60003-49 | KV12-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-X60003-1 | KV12-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-X60003-19 | KV12-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-X60004-8 | KV12-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-X60003-10 | KV12-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W75 | OEM-X60004-13 | KV12-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W76 | OEM-X60002-14 | KV12-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W77 | OEM-X60002-15 | KV12-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W78 | OEM-X60002-16 | KV12-C-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W79 | OEM-X60002-18 | KV12-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W80 | OEM-X60003-24 | KV12-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W81 | OEM-X60003-22 | KV12-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W82 | OEM-X60003-27 | KV12-C-13 | 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 | KV12-D-1 | KV12-C-17 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | KV12-A-19 | KV12-D-1 | open (OL) | power ground must not touch +12 V supply | |
| 3 | KV12-A-19 | KV12-D-21 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | KV12-C-17 | KV12-D-21 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 5 | KV12-D-1 | KV12-D-21 | open (OL) | +12 V supply must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
KV12-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection Channel 9 | — | — | — | — | — | — | — | — |
| 2 | Injection Channel 10 | — | — | — | — | — | — | — | — |
| 3 | Injection Channel 11 | — | — | — | — | — | — | — | — |
| 4 | Injection Channel 12 | — | — | — | — | — | — | — | — |
| 5 | — | — | — | — | — | — | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | Ignition Channel 9 | — | — | — | — | — | — | — | — |
| 9 | Ignition Channel 10 | — | — | — | — | — | — | — | — |
| 10 | Lambda 1 Heater - | — | W62 | — | 0.5 | OEM-X60002-1 | — | — | — |
| 11 | Lambda 2 Heater - | — | W63 | — | 0.5 | OEM-X60002-13 | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Ignition Channel 11 | — | — | — | — | — | — | — | — |
| 15 | Ignition Channel 12 | — | — | — | — | — | — | — | — |
| 16 | Lambda 1 Heater + | — | — | — | — | — | — | — | — |
| 17 | Lambda 2 Heater + | — | — | — | — | — | — | — | — |
| 18 | Lambda 1 Nernst Cell (Vs) | — | — | — | — | — | — | — | — |
| 19 | ECU Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Lambda 2 Cal Resistor (CalR) | — | — | — | — | — | — | — | — |
| 21 | Lambda 2 Nernst Cell (Vs) | — | — | — | — | — | — | — | — |
| 22 | Lambda 2 Pump Cell (Ip) | — | — | — | — | — | — | — | — |
| 23 | Lambda 2 Virtual Ground (VGnd) | — | — | — | — | — | — | — | — |
| 24 | Lambda 1 Cal Resistor (CalR) | — | — | — | — | — | — | — | — |
| 25 | Lambda 1 Pump Cell (Ip) | — | — | — | — | — | — | — | — |
| 26 | Lambda 1 Virtual Ground (VGnd) | — | — | — | — | — | — | — | — |
KV12-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection Channel 1 | — | W47 | — | 0.5 | OEM-X60003-33 | — | — | — |
| 2 | Injection Channel 2 | — | W48 | — | 0.5 | OEM-X60003-34 | — | — | — |
| 3 | Injection Channel 3 | — | W49 | — | 0.5 | OEM-X60003-35 | — | — | — |
| 4 | Injection Channel 4 | — | W50 | — | 0.5 | OEM-X60003-36 | — | — | — |
| 5 | Injection Channel 5 | — | W51 | — | 0.5 | OEM-X60003-37 | — | — | — |
| 6 | Injection Channel 6 | — | W52 | — | 0.5 | OEM-X60003-38 | — | — | — |
| 7 | Injection Channel 7 | — | W70 | — | 0.5 | OEM-X60003-49 | — | — | — |
| 8 | Injection Channel 8 | — | — | — | — | — | — | — | — |
| 9 | ECU Ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | Auxiliary Output 1 | — | W66 | — | 0.5 | OEM-X60003-40 | — | — | — |
| 11 | Auxiliary Output 2 | — | W67 | — | 0.5 | OEM-X60003-41 | — | — | — |
| 12 | Auxiliary Output 3 | — | W68 | — | 0.5 | OEM-X60003-42 | — | — | — |
| 13 | Auxiliary Output 4 | — | W69 | — | 0.5 | OEM-X60003-45 | — | — | — |
| 14 | Auxiliary Output 5 | — | W60 | — | 0.5 | OEM-X60002-23 | — | — | — |
| 15 | Auxiliary Output 6 | — | W61 | — | 0.5 | OEM-X60004-10 | — | — | — |
| 16 | Auxiliary Output 7 | — | W64 | — | 0.5 | OEM-X60002-19 | — | — | — |
| 17 | Auxiliary Output 8 | — | W65 | — | 0.5 | OEM-X60002-7 | — | — | — |
| 18 | Auxiliary Output 9 | — | W55 | — | 0.5 | OEM-X60003-43 | — | — | — |
| 19 | Auxiliary Output 10 | — | W56 | — | 0.5 | OEM-X60003-44 | — | — | — |
| 20 | Auxiliary Output 11 | — | W57 | — | 0.5 | OEM-X60003-46 | — | — | — |
| 21 | Auxiliary Output 12 | — | W58 | — | 0.5 | OEM-X60003-47 | — | — | — |
| 22 | Auxiliary Output 13 | — | — | — | — | — | — | — | — |
| 23 | Auxiliary Output 14 | — | — | — | — | — | — | — | — |
| 24 | Auxiliary Output 15 | — | — | — | — | — | — | — | — |
| 25 | Auxiliary Output 16 | — | — | — | — | — | — | — | — |
| 26 | Ignition Channel 1 | — | W41 | — | 0.5 | OEM-X60005-3 | — | — | — |
| 27 | Ignition Channel 2 | — | W42 | — | 0.5 | OEM-X60005-2 | — | — | — |
| 28 | Ignition Channel 3 | — | W43 | — | 0.5 | OEM-X60005-1 | — | — | — |
| 29 | Ignition Channel 4 | — | W44 | — | 0.5 | OEM-X60005-9 | — | — | — |
| 30 | Ignition Channel 5 | — | W45 | — | 0.5 | OEM-X60005-8 | — | — | — |
| 31 | Ignition Channel 6 | — | W46 | — | 0.5 | OEM-X60005-7 | — | — | — |
| 32 | Ignition Channel 7 | — | — | — | — | — | — | — | — |
| 33 | Ignition Channel 8 | — | — | — | — | — | — | — | — |
| 34 | ECU Ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
KV12-C
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU Ground | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Analog Input Channel 1 | — | W71 | — | 0.5 | OEM-X60003-1 | — | — | — |
| 3 | Analog Input Channel 2 | — | W72 | — | 0.5 | OEM-X60003-19 | — | — | — |
| 4 | Analog Input Channel 3 | — | W73 | — | 0.5 | OEM-X60004-8 | — | — | — |
| 5 | Analog Input Channel 4 | — | W74 | — | 0.5 | OEM-X60003-10 | — | — | — |
| 6 | Analog Input Channel 5 | — | W75 | — | 0.5 | OEM-X60004-13 | — | — | — |
| 7 | Analog Input Channel 6 | — | W76 | — | 0.5 | OEM-X60002-14 | — | — | — |
| 8 | Analog Input Channel 7 | — | W77 | — | 0.5 | OEM-X60002-15 | — | — | — |
| 9 | Analog Input Channel 8 | — | W78 | — | 0.5 | OEM-X60002-16 | — | — | — |
| 10 | Analog Input Channel 9 | — | W79 | — | 0.5 | OEM-X60002-18 | — | — | — |
| 11 | Analog Input Channel 10 | — | W80 | — | 0.5 | OEM-X60003-24 | — | — | — |
| 12 | Analog Input Channel 11 | — | W81 | — | 0.5 | OEM-X60003-22 | — | — | — |
| 13 | Analog Input Channel 12 | — | W82 | — | 0.5 | OEM-X60003-27 | — | — | — |
| 14 | Analog Input Channel 13 | — | — | — | — | — | — | — | — |
| 15 | Analog Input Channel 14 | — | — | — | — | — | — | — | — |
| 16 | Analog Input Channel 15 | — | — | — | — | — | — | — | — |
| 17 | Analog Sensor 0V Reference | — | W29 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Digital Input 9 | — | — | — | — | — | — | — | — |
| 19 | Digital Input 10 | — | — | — | — | — | — | — | — |
| 20 | Digital Input 11 | — | — | — | — | — | — | — | — |
| 21 | Digital Input 12 | — | — | — | — | — | — | — | — |
| 22 | Digital Input 13 | — | — | — | — | — | — | — | — |
| 23 | Digital Input 14 | — | — | — | — | — | — | — | — |
| 24 | Analog Input Channel 16 | — | — | — | — | — | — | — | — |
| 25 | Analog Sensor 0V Reference | — | W30 | — | 0.5 | SP-0V-1 | — | — | — |
| 26 | ECU Ground | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | Digital Input 1 | — | — | — | — | — | — | — | — |
| 28 | Digital Input 2 | — | — | — | — | — | — | — | — |
| 29 | Digital Input 3 | — | — | — | — | — | — | — | — |
| 30 | Digital Input 4 | — | — | — | — | — | — | — | — |
| 31 | Digital Input 5 | — | — | — | — | — | — | — | — |
| 32 | Digital Input 6 | — | — | — | — | — | — | — | — |
| 33 | Digital Input 7 | — | — | — | — | — | — | — | — |
| 34 | Digital Input 8 | — | — | — | — | — | — | — | — |
KV12-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU 14V Supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Auxiliary Output 13-16 14V Supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Sensor Supply 8V | — | — | — | — | — | — | — | — |
| 4 | Crank Index Sensor + | — | W35 | — | 0.5 | OEM-X60003-8 | — | — | — |
| 5 | Crank Index Sensor - | — | W36 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sync Sensor + | — | W37 | — | 0.5 | OEM-X60003-2 | — | — | — |
| 7 | Sync Sensor - | — | W38 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | CAN 1H | — | — | — | — | — | — | — | — |
| 9 | EFI Relay Output (Low Side 200mA) | — | W59 | — | 0.5 | OEM-X60001-1 | — | — | — |
| 10 | CAN 2H | — | — | — | — | — | — | — | — |
| 11 | Knock 1 + | — | W39 | — | 0.5 | OEM-X60003-29 | — | — | — |
| 12 | Knock 1 - | — | — | — | — | — | — | — | — |
| 13 | Shield (Crank/Cam/ Knock) | — | W54 | — | 0.5 | SP-SHD-1 | — | — | — |
| 14 | CAN 1L | — | — | — | — | — | — | — | — |
| 15 | Ignition Switch Input | — | — | — | — | — | — | — | — |
| 16 | CAN 2L | — | — | — | — | — | — | — | — |
| 17 | Knock 2 + | — | W40 | — | 0.5 | OEM-X60003-30 | — | — | — |
| 18 | Knock 2 - | — | — | — | — | — | — | — | — |
| 19 | Analog Output (0.0 - 5.0V) | — | — | — | — | — | — | — | — |
| 20 | Auxiliary Output 9-12 14V Supply | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 21 | Sensor Supply Vref1: 5.0V | — | W34 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Sensor Supply Vref2: 5.0V | — | — | — | — | — | — | — | — |
| 23 | Ethernet Tx + | — | — | — | — | — | — | — | — |
| 24 | Ethernet Tx - | — | — | — | — | — | — | — | — |
| 25 | Ethernet Rx + | — | — | — | — | — | — | — | — |
| 26 | Ethernet Rx - | — | — | — | — | — | — | — | — |
OEM-X60001
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector/unloader relay control (terminal 15) | — | W59 | — | 0.5 | KV12-D-9 | — | — | — |
| 4 | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Power ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Battery constant (terminal 30) | — | — | — | — | — | — | — | — |
| 8 | ECU main power (terminal 87 via main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Voltage supply (injector / fuse carrier) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
OEM-X60002
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | O2 sensor heater, bank 1 pre-cat | — | W62 | — | 0.5 | KV12-A-10 | — | — | — |
| 13 | O2 sensor heater, bank 2 pre-cat | — | W63 | — | 0.5 | KV12-A-11 | — | — | — |
| 14 | O2 sensor signal, bank 1 pre-cat | — | W76 | — | 0.5 | KV12-C-7 | — | — | — |
| 15 | O2 sensor signal, bank 2 pre-cat | — | W77 | — | 0.5 | KV12-C-8 | — | — | — |
| 16 | O2 sensor signal, bank 1 post-cat | — | W78 | — | 0.5 | KV12-C-9 | — | — | — |
| 18 | O2 sensor signal, bank 2 post-cat | — | W79 | — | 0.5 | KV12-C-10 | — | — | — |
| 19 | O2 sensor heater, bank 2 post-cat | — | W64 | — | 0.5 | KV12-B-16 | — | — | — |
| 20 | O2 sensor ground, bank 1 pre-cat | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | O2 sensor ground, bank 2 pre-cat | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | O2 sensor ground, bank 1 post-cat | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Main relay control | — | W60 | — | 0.5 | KV12-B-14 | — | — | — |
| 24 | O2 sensor ground, bank 2 post-cat | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | O2 sensor heater, bank 1 post-cat | — | W65 | — | 0.5 | KV12-B-17 | — | — | — |
OEM-X60003
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mass air flow (MAF) signal | — | W71 | — | 0.5 | KV12-C-2 | — | — | — |
| 10 | Throttle position sensor 2 | — | W74 | — | 0.5 | KV12-C-5 | — | — | — |
| 15 | Exhaust camshaft ground | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | MAF ground | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Intake camshaft ground | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Throttle position sensor 1 | — | W72 | — | 0.5 | KV12-C-3 | — | — | — |
| 2 | Exhaust camshaft position | — | W37 | — | 0.5 | KV12-D-6 | — | — | — |
| 20 | Throttle ground | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Crankshaft ground | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Intake air temperature (IAT) | — | W81 | — | 0.5 | KV12-C-12 | — | — | — |
| 23 | IAT ground | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Engine coolant temperature (ECT) | — | W80 | — | 0.5 | KV12-C-11 | — | — | — |
| 25 | ECT ground | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | Engine oil temperature | — | W82 | — | 0.5 | KV12-C-13 | — | — | — |
| 28 | Oil temperature ground | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 29 | Knock sensor, cylinders 1-3 (A) | — | W39 | — | 0.5 | KV12-D-11 | — | — | — |
| 30 | Knock sensor, cylinders 1-3 (B) | — | W40 | — | 0.5 | KV12-D-17 | — | — | — |
| 31 | Knock sensor, cylinders 4-6 (A) | — | — | — | — | — | — | — | — |
| 32 | Knock sensor, cylinders 4-6 (B) | — | — | — | — | — | — | — | — |
| 33 | Injector cylinder 1 | — | W47 | — | 0.5 | KV12-B-1 | — | — | — |
| 34 | Injector cylinder 2 | — | W48 | — | 0.5 | KV12-B-2 | — | — | — |
| 35 | Injector cylinder 3 | — | W49 | — | 0.5 | KV12-B-3 | — | — | — |
| 36 | Injector cylinder 4 | — | W50 | — | 0.5 | KV12-B-4 | — | — | — |
| 37 | Injector cylinder 5 | — | W51 | — | 0.5 | KV12-B-5 | — | — | — |
| 38 | Injector cylinder 6 | — | W52 | — | 0.5 | KV12-B-6 | — | — | — |
| 40 | VANOS intake solenoid | — | W66 | — | 0.5 | KV12-B-10 | — | — | — |
| 41 | VANOS exhaust solenoid | — | W67 | — | 0.5 | KV12-B-11 | — | — | — |
| 42 | Evap purge valve | — | W68 | — | 0.5 | KV12-B-12 | — | — | — |
| 43 | Throttle motor drive 1 (H-bridge) | — | W55 | — | 0.5 | KV12-B-18 | — | — | — |
| 44 | Throttle motor drive 2 (H-bridge) | — | W56 | — | 0.5 | KV12-B-19 | — | — | — |
| 45 | Map-controlled thermostat | — | W69 | — | 0.5 | KV12-B-13 | — | — | — |
| 46 | Idle speed control, close | — | W57 | — | 0.5 | KV12-B-20 | — | — | — |
| 47 | Idle speed control, open | — | W58 | — | 0.5 | KV12-B-21 | — | — | — |
| 48 | Knock sensor shield | — | W53 | — | 0.5 | SP-SHD-1 | — | — | — |
| 49 | DISA intake flap | — | W70 | — | 0.5 | KV12-B-7 | — | — | — |
| 5 | Intake camshaft position | — | — | — | — | — | — | — | — |
| 7 | Throttle body +5V supply | — | W31 | — | 0.5 | SP-5V1-1 | — | — | — |
| 8 | Crankshaft position | — | W35 | — | 0.5 | KV12-D-4 | — | — | — |
OEM-X60004
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Fuel pump relay control | — | W61 | — | 0.5 | KV12-B-15 | — | — | — |
| 12 | Pedal ground 2 | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | Pedal position signal 2 | — | W75 | — | 0.5 | KV12-C-6 | — | — | — |
| 14 | Pedal +5V supply 2 | — | W32 | — | 0.5 | SP-5V1-1 | — | — | — |
| 7 | Pedal ground 1 | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | Pedal position signal 1 | — | W73 | — | 0.5 | KV12-C-4 | — | — | — |
| 9 | Pedal +5V supply 1 | — | W33 | — | 0.5 | SP-5V1-1 | — | — | — |
OEM-X60005
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition coil 3 | — | W43 | — | 0.5 | KV12-B-28 | — | — | — |
| 2 | Ignition coil 2 | — | W42 | — | 0.5 | KV12-B-27 | — | — | — |
| 3 | Ignition coil 1 | — | W41 | — | 0.5 | KV12-B-26 | — | — | — |
| 5 | Ignition ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Ignition coil 6 | — | W46 | — | 0.5 | KV12-B-31 | — | — | — |
| 8 | Ignition coil 5 | — | W45 | — | 0.5 | KV12-B-30 | — | — | — |
| 9 | Ignition coil 4 | — | W44 | — | 0.5 | KV12-B-29 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-X60002-20 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-X60002-21 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-X60002-22 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-X60002-24 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-X60003-15 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-X60003-17 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-X60003-18 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-X60003-20 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | OEM-X60003-21 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | OEM-X60003-23 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-X60003-25 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-X60003-28 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | OEM-X60004-12 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | OEM-X60004-7 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | KV12-C-17 | — | — | — |
| 1 | — | — | W30 | — | 0.5 | KV12-C-25 | — | — | — |
| 1 | — | — | W36 | — | 0.5 | KV12-D-5 | — | — | — |
| 1 | — | — | W38 | — | 0.5 | KV12-D-7 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-X60001-8 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-X60001-9 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | KV12-D-1 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | KV12-D-2 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | KV12-D-20 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W31 | — | 0.5 | OEM-X60003-7 | — | — | — |
| 1 | — | — | W32 | — | 0.5 | OEM-X60004-14 | — | — | — |
| 1 | — | — | W33 | — | 0.5 | OEM-X60004-9 | — | — | — |
| 1 | — | — | W34 | — | 0.5 | KV12-D-21 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-X60001-4 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-X60001-5 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-X60001-6 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-X60005-5 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | KV12-A-19 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | KV12-B-34 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | KV12-B-9 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | KV12-C-1 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | KV12-C-26 | — | — | — |
SP-SHD
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W53 | — | 0.5 | OEM-X60003-48 | — | — | — |
| 1 | — | — | W54 | — | 0.5 | KV12-D-13 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-X60001-1 | Injector/unloader relay control (terminal 15) | low_side_out | KV12-D-9 | EFI Relay Output (Low Side 200mA) | low_side_out | corroborated | |
| OEM-X60001-4 | Power ground | ground | KV12-A-19 + KV12-B-34 + KV12-B-9 + KV12-C-1 + KV12-C-26 | ECU Ground + ECU Ground + ECU Ground + ECU Ground + ECU Ground | ground | corroborated | |
| OEM-X60001-5 | Power ground | ground | KV12-A-19 + KV12-B-34 + KV12-B-9 + KV12-C-1 + KV12-C-26 | ECU Ground + ECU Ground + ECU Ground + ECU Ground + ECU Ground | ground | corroborated | |
| OEM-X60001-6 | Power ground | ground | KV12-A-19 + KV12-B-34 + KV12-B-9 + KV12-C-1 + KV12-C-26 | ECU Ground + ECU Ground + ECU Ground + ECU Ground + ECU Ground | ground | corroborated | |
| OEM-X60001-7 | Battery constant (terminal 30) | power_in | — | — | — | corroborated | |
| OEM-X60001-8 | ECU main power (terminal 87 via main relay) | power_in | KV12-D-1 + KV12-D-2 + KV12-D-20 | ECU 14V Supply + Auxiliary Output 13-16 14V Supply + Auxiliary Output 9-12 14V Supply | power_in | corroborated | |
| OEM-X60001-9 | Voltage supply (injector / fuse carrier) | power_in | KV12-D-1 + KV12-D-2 + KV12-D-20 | ECU 14V Supply + Auxiliary Output 13-16 14V Supply + Auxiliary Output 9-12 14V Supply | power_in | corroborated | |
| OEM-X60002-1 | O2 sensor heater, bank 1 pre-cat | low_side_out | KV12-A-10 | Lambda 1 Heater - | low_side_out | corroborated | |
| OEM-X60002-13 | O2 sensor heater, bank 2 pre-cat | low_side_out | KV12-A-11 | Lambda 2 Heater - | low_side_out | corroborated | |
| OEM-X60002-14 | O2 sensor signal, bank 1 pre-cat | lambda_nb_in | KV12-C-7 | Analog Input Channel 6 | analog_in | corroborated | |
| OEM-X60002-15 | O2 sensor signal, bank 2 pre-cat | lambda_nb_in | KV12-C-8 | Analog Input Channel 7 | analog_in | corroborated | |
| OEM-X60002-16 | O2 sensor signal, bank 1 post-cat | lambda_nb_in | KV12-C-9 | Analog Input Channel 8 | analog_in | corroborated | |
| OEM-X60002-18 | O2 sensor signal, bank 2 post-cat | lambda_nb_in | KV12-C-10 | Analog Input Channel 9 | analog_in | corroborated | |
| OEM-X60002-19 | O2 sensor heater, bank 2 post-cat | low_side_out | KV12-B-16 | Auxiliary Output 7 | low_side_out | corroborated | |
| OEM-X60002-20 | O2 sensor ground, bank 1 pre-cat | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60002-21 | O2 sensor ground, bank 2 pre-cat | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60002-22 | O2 sensor ground, bank 1 post-cat | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60002-23 | Main relay control | low_side_out | KV12-B-14 | Auxiliary Output 5 | low_side_out | corroborated | |
| OEM-X60002-24 | O2 sensor ground, bank 2 post-cat | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60002-7 | O2 sensor heater, bank 1 post-cat | low_side_out | KV12-B-17 | Auxiliary Output 8 | low_side_out | corroborated | |
| OEM-X60003-1 | Mass air flow (MAF) signal | analog_in | KV12-C-2 | Analog Input Channel 1 | analog_in | corroborated | |
| OEM-X60003-10 | Throttle position sensor 2 | analog_in | KV12-C-5 | Analog Input Channel 4 | analog_in | corroborated | |
| OEM-X60003-15 | Exhaust camshaft ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-17 | MAF ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-18 | Intake camshaft ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-19 | Throttle position sensor 1 | analog_in | KV12-C-3 | Analog Input Channel 2 | analog_in | corroborated | |
| OEM-X60003-2 | Exhaust camshaft position | trigger_in | KV12-D-6 | Sync Sensor + | trigger_in | corroborated | |
| OEM-X60003-20 | Throttle ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-21 | Crankshaft ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-22 | Intake air temperature (IAT) | temp_in | KV12-C-12 | Analog Input Channel 11 | analog_in | corroborated | |
| OEM-X60003-23 | IAT ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-24 | Engine coolant temperature (ECT) | temp_in | KV12-C-11 | Analog Input Channel 10 | analog_in | corroborated | |
| OEM-X60003-25 | ECT ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-27 | Engine oil temperature | temp_in | KV12-C-13 | Analog Input Channel 12 | analog_in | corroborated | |
| OEM-X60003-28 | Oil temperature ground | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60003-29 | Knock sensor, cylinders 1-3 (A) | knock_in | KV12-D-11 | Knock 1 + | knock_in | corroborated | |
| OEM-X60003-30 | Knock sensor, cylinders 1-3 (B) | knock_in | KV12-D-17 | Knock 2 + | knock_in | corroborated | |
| OEM-X60003-31 | Knock sensor, cylinders 4-6 (A) | knock_in | — | — | — | corroborated | |
| OEM-X60003-32 | Knock sensor, cylinders 4-6 (B) | knock_in | — | — | — | corroborated | |
| OEM-X60003-33 | Injector cylinder 1 | injector_out | KV12-B-1 | Injection Channel 1 | injector_out | corroborated | |
| OEM-X60003-34 | Injector cylinder 2 | injector_out | KV12-B-2 | Injection Channel 2 | injector_out | corroborated | |
| OEM-X60003-35 | Injector cylinder 3 | injector_out | KV12-B-3 | Injection Channel 3 | injector_out | corroborated | |
| OEM-X60003-36 | Injector cylinder 4 | injector_out | KV12-B-4 | Injection Channel 4 | injector_out | corroborated | |
| OEM-X60003-37 | Injector cylinder 5 | injector_out | KV12-B-5 | Injection Channel 5 | injector_out | corroborated | |
| OEM-X60003-38 | Injector cylinder 6 | injector_out | KV12-B-6 | Injection Channel 6 | injector_out | corroborated | |
| OEM-X60003-40 | VANOS intake solenoid | low_side_out | KV12-B-10 | Auxiliary Output 1 | low_side_out | corroborated | |
| OEM-X60003-41 | VANOS exhaust solenoid | low_side_out | KV12-B-11 | Auxiliary Output 2 | low_side_out | corroborated | |
| OEM-X60003-42 | Evap purge valve | low_side_out | KV12-B-12 | Auxiliary Output 3 | low_side_out | corroborated | |
| OEM-X60003-43 | Throttle motor drive 1 (H-bridge) | hbridge_out | KV12-B-18 | Auxiliary Output 9 | hbridge_out | corroborated | |
| OEM-X60003-44 | Throttle motor drive 2 (H-bridge) | hbridge_out | KV12-B-19 | Auxiliary Output 10 | hbridge_out | corroborated | |
| OEM-X60003-45 | Map-controlled thermostat | low_side_out | KV12-B-13 | Auxiliary Output 4 | low_side_out | corroborated | |
| OEM-X60003-46 | Idle speed control, close | hbridge_out | KV12-B-20 | Auxiliary Output 11 | hbridge_out | corroborated | |
| OEM-X60003-47 | Idle speed control, open | hbridge_out | KV12-B-21 | Auxiliary Output 12 | hbridge_out | corroborated | |
| OEM-X60003-48 | Knock sensor shield | shield | KV12-D-13 | Shield (Crank/Cam/ Knock) | shield | corroborated | |
| OEM-X60003-49 | DISA intake flap | low_side_out | KV12-B-7 | Injection Channel 7 | injector_out | corroborated | |
| OEM-X60003-5 | Intake camshaft position | trigger_in | — | — | — | corroborated | |
| OEM-X60003-7 | Throttle body +5V supply | vref | KV12-D-21 | Sensor Supply Vref1: 5.0V | vref | corroborated | |
| OEM-X60003-8 | Crankshaft position | trigger_in | KV12-D-4 | Crank Index Sensor + | trigger_in | corroborated | |
| OEM-X60004-10 | Fuel pump relay control | low_side_out | KV12-B-15 | Auxiliary Output 6 | low_side_out | corroborated | |
| OEM-X60004-12 | Pedal ground 2 | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60004-13 | Pedal position signal 2 | analog_in | KV12-C-6 | Analog Input Channel 5 | analog_in | corroborated | |
| OEM-X60004-14 | Pedal +5V supply 2 | vref | KV12-D-21 | Sensor Supply Vref1: 5.0V | vref | corroborated | |
| OEM-X60004-7 | Pedal ground 1 | sensor_ground | KV12-C-17 + KV12-C-25 + KV12-D-5 + KV12-D-7 | Analog Sensor 0V Reference + Analog Sensor 0V Reference + Crank Index Sensor - + Sync Sensor - | sensor_ground + trigger_in | corroborated | |
| OEM-X60004-8 | Pedal position signal 1 | analog_in | KV12-C-4 | Analog Input Channel 3 | analog_in | corroborated | |
| OEM-X60004-9 | Pedal +5V supply 1 | vref | KV12-D-21 | Sensor Supply Vref1: 5.0V | vref | corroborated | |
| OEM-X60005-1 | Ignition coil 3 | ignition_out | KV12-B-28 | Ignition Channel 3 | ignition_out | corroborated | |
| OEM-X60005-2 | Ignition coil 2 | ignition_out | KV12-B-27 | Ignition Channel 2 | ignition_out | corroborated | |
| OEM-X60005-3 | Ignition coil 1 | ignition_out | KV12-B-26 | Ignition Channel 1 | ignition_out | corroborated | |
| OEM-X60005-5 | Ignition ground | ground | KV12-A-19 + KV12-B-34 + KV12-B-9 + KV12-C-1 + KV12-C-26 | ECU Ground + ECU Ground + ECU Ground + ECU Ground + ECU Ground | ground | corroborated | |
| OEM-X60005-7 | Ignition coil 6 | ignition_out | KV12-B-31 | Ignition Channel 6 | ignition_out | corroborated | |
| OEM-X60005-8 | Ignition coil 5 | ignition_out | KV12-B-30 | Ignition Channel 5 | ignition_out | corroborated | |
| OEM-X60005-9 | Ignition coil 4 | ignition_out | KV12-B-29 | Ignition Channel 4 | ignition_out | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-X60001-8 | SP-14V-1 | 0.85 | no route | ECU main power (terminal 87 via main relay) | — | |
| W2 | OEM-X60001-9 | SP-14V-1 | 0.85 | no route | Voltage supply (injector / fuse carrier) | — | |
| W3 | SP-14V-1 | KV12-D-1 | 0.85 | no route | ECU 14V Supply | — | |
| W4 | SP-14V-1 | KV12-D-2 | 0.85 | no route | Auxiliary Output 13-16 14V Supply | — | |
| W5 | SP-14V-1 | KV12-D-20 | 0.85 | no route | Auxiliary Output 9-12 14V Supply | — | |
| W6 | OEM-X60001-4 | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W7 | OEM-X60001-5 | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W8 | OEM-X60001-6 | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W9 | OEM-X60005-5 | SP-GND-1 | 0.85 | no route | Ignition ground | — | |
| W10 | SP-GND-1 | KV12-A-19 | 0.85 | no route | ECU Ground | — | |
| W11 | SP-GND-1 | KV12-B-34 | 0.85 | no route | ECU Ground | — | |
| W12 | SP-GND-1 | KV12-B-9 | 0.85 | no route | ECU Ground | — | |
| W13 | SP-GND-1 | KV12-C-1 | 0.85 | no route | ECU Ground | — | |
| W14 | SP-GND-1 | KV12-C-26 | 0.85 | no route | ECU Ground | — | |
| W15 | OEM-X60002-20 | SP-0V-1 | 0.5 | no route | O2 sensor ground, bank 1 pre-cat | — | |
| W16 | OEM-X60002-21 | SP-0V-1 | 0.5 | no route | O2 sensor ground, bank 2 pre-cat | — | |
| W17 | OEM-X60002-22 | SP-0V-1 | 0.5 | no route | O2 sensor ground, bank 1 post-cat | — | |
| W18 | OEM-X60002-24 | SP-0V-1 | 0.5 | no route | O2 sensor ground, bank 2 post-cat | — | |
| W19 | OEM-X60003-15 | SP-0V-1 | 0.5 | no route | Exhaust camshaft ground | — | |
| W20 | OEM-X60003-17 | SP-0V-1 | 0.5 | no route | MAF ground | — | |
| W21 | OEM-X60003-18 | SP-0V-1 | 0.5 | no route | Intake camshaft ground | — | |
| W22 | OEM-X60003-20 | SP-0V-1 | 0.5 | no route | Throttle ground | — | |
| W23 | OEM-X60003-21 | SP-0V-1 | 0.5 | no route | Crankshaft ground | — | |
| W24 | OEM-X60003-23 | SP-0V-1 | 0.5 | no route | IAT ground | — | |
| W25 | OEM-X60003-25 | SP-0V-1 | 0.5 | no route | ECT ground | — | |
| W26 | OEM-X60003-28 | SP-0V-1 | 0.5 | no route | Oil temperature ground | — | |
| W27 | OEM-X60004-12 | SP-0V-1 | 0.5 | no route | Pedal ground 2 | — | |
| W28 | OEM-X60004-7 | SP-0V-1 | 0.5 | no route | Pedal ground 1 | — | |
| W29 | SP-0V-1 | KV12-C-17 | 0.5 | no route | Analog Sensor 0V Reference | — | |
| W30 | SP-0V-1 | KV12-C-25 | 0.5 | no route | Analog Sensor 0V Reference | — | |
| W31 | OEM-X60003-7 | SP-5V1-1 | 0.5 | no route | Throttle body +5V supply | — | |
| W32 | OEM-X60004-14 | SP-5V1-1 | 0.5 | no route | Pedal +5V supply 2 | — | |
| W33 | OEM-X60004-9 | SP-5V1-1 | 0.5 | no route | Pedal +5V supply 1 | — | |
| W34 | SP-5V1-1 | KV12-D-21 | 0.5 | no route | Sensor Supply Vref1: 5.0V | — | |
| W35 | OEM-X60003-8 | KV12-D-4 | 0.5 | no route | Crankshaft position | — | |
| W36 | SP-0V-1 | KV12-D-5 | 0.5 | no route | Crank Index Sensor - | — | |
| W37 | OEM-X60003-2 | KV12-D-6 | 0.5 | no route | Exhaust camshaft position | — | |
| W38 | SP-0V-1 | KV12-D-7 | 0.5 | no route | Sync Sensor - | — | |
| W39 | OEM-X60003-29 | KV12-D-11 | 0.5 | no route | Knock sensor, cylinders 1-3 (A) | — | |
| W40 | OEM-X60003-30 | KV12-D-17 | 0.5 | no route | Knock sensor, cylinders 1-3 (B) | — | |
| W41 | OEM-X60005-3 | KV12-B-26 | 0.5 | no route | Ignition coil 1 | — | |
| W42 | OEM-X60005-2 | KV12-B-27 | 0.5 | no route | Ignition coil 2 | — | |
| W43 | OEM-X60005-1 | KV12-B-28 | 0.5 | no route | Ignition coil 3 | — | |
| W44 | OEM-X60005-9 | KV12-B-29 | 0.5 | no route | Ignition coil 4 | — | |
| W45 | OEM-X60005-8 | KV12-B-30 | 0.5 | no route | Ignition coil 5 | — | |
| W46 | OEM-X60005-7 | KV12-B-31 | 0.5 | no route | Ignition coil 6 | — | |
| W47 | OEM-X60003-33 | KV12-B-1 | 0.5 | no route | Injector cylinder 1 | — | |
| W48 | OEM-X60003-34 | KV12-B-2 | 0.5 | no route | Injector cylinder 2 | — | |
| W49 | OEM-X60003-35 | KV12-B-3 | 0.5 | no route | Injector cylinder 3 | — | |
| W50 | OEM-X60003-36 | KV12-B-4 | 0.5 | no route | Injector cylinder 4 | — | |
| W51 | OEM-X60003-37 | KV12-B-5 | 0.5 | no route | Injector cylinder 5 | — | |
| W52 | OEM-X60003-38 | KV12-B-6 | 0.5 | no route | Injector cylinder 6 | — | |
| W53 | OEM-X60003-48 | SP-SHD-1 | 0.5 | no route | Knock sensor shield | — | |
| W54 | SP-SHD-1 | KV12-D-13 | 0.5 | no route | Shield (Crank/Cam/ Knock) | — | |
| W55 | OEM-X60003-43 | KV12-B-18 | 0.5 | no route | Throttle motor drive 1 (H-bridge) | — | |
| W56 | OEM-X60003-44 | KV12-B-19 | 0.5 | no route | Throttle motor drive 2 (H-bridge) | — | |
| W57 | OEM-X60003-46 | KV12-B-20 | 0.5 | no route | Idle speed control, close | — | |
| W58 | OEM-X60003-47 | KV12-B-21 | 0.5 | no route | Idle speed control, open | — | |
| W59 | OEM-X60001-1 | KV12-D-9 | 0.5 | no route | Injector/unloader relay control (terminal 15) | — | |
| W60 | OEM-X60002-23 | KV12-B-14 | 0.5 | no route | Main relay control | — | |
| W61 | OEM-X60004-10 | KV12-B-15 | 0.5 | no route | Fuel pump relay control | — | |
| W62 | OEM-X60002-1 | KV12-A-10 | 0.5 | no route | O2 sensor heater, bank 1 pre-cat | — | |
| W63 | OEM-X60002-13 | KV12-A-11 | 0.5 | no route | O2 sensor heater, bank 2 pre-cat | — | |
| W64 | OEM-X60002-19 | KV12-B-16 | 0.5 | no route | O2 sensor heater, bank 2 post-cat | — | |
| W65 | OEM-X60002-7 | KV12-B-17 | 0.5 | no route | O2 sensor heater, bank 1 post-cat | — | |
| W66 | OEM-X60003-40 | KV12-B-10 | 0.5 | no route | VANOS intake solenoid | — | |
| W67 | OEM-X60003-41 | KV12-B-11 | 0.5 | no route | VANOS exhaust solenoid | — | |
| W68 | OEM-X60003-42 | KV12-B-12 | 0.5 | no route | Evap purge valve | — | |
| W69 | OEM-X60003-45 | KV12-B-13 | 0.5 | no route | Map-controlled thermostat | — | |
| W70 | OEM-X60003-49 | KV12-B-7 | 0.5 | no route | DISA intake flap | — | |
| W71 | OEM-X60003-1 | KV12-C-2 | 0.5 | no route | Mass air flow (MAF) signal | — | |
| W72 | OEM-X60003-19 | KV12-C-3 | 0.5 | no route | Throttle position sensor 1 | — | |
| W73 | OEM-X60004-8 | KV12-C-4 | 0.5 | no route | Pedal position signal 1 | — | |
| W74 | OEM-X60003-10 | KV12-C-5 | 0.5 | no route | Throttle position sensor 2 | — | |
| W75 | OEM-X60004-13 | KV12-C-6 | 0.5 | no route | Pedal position signal 2 | — | |
| W76 | OEM-X60002-14 | KV12-C-7 | 0.5 | no route | O2 sensor signal, bank 1 pre-cat | — | |
| W77 | OEM-X60002-15 | KV12-C-8 | 0.5 | no route | O2 sensor signal, bank 2 pre-cat | — | |
| W78 | OEM-X60002-16 | KV12-C-9 | 0.5 | no route | O2 sensor signal, bank 1 post-cat | — | |
| W79 | OEM-X60002-18 | KV12-C-10 | 0.5 | no route | O2 sensor signal, bank 2 post-cat | — | |
| W80 | OEM-X60003-24 | KV12-C-11 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W81 | OEM-X60003-22 | KV12-C-12 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W82 | OEM-X60003-27 | KV12-C-13 | 0.5 | no route | Engine oil temperature | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 3-1437290-7 | TE | Superseal 1.0 26-way plug | 1.000 | ea |
| connector | 3-1437290-8 | TE | Superseal 1.0 26-way plug, Key 2 | 1.000 | ea |
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| connector | 4-1437290-1 | TE | Superseal 1.0 34-way plug, Key 2 | 1.000 | ea |
| connector | BMW-E46-MS43-CONN | BMW | E46 DME (MS43) harness connector | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 58.000 | 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 |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-X60003-5 | Required OEM function "Intake camshaft position" (trigger_in) is not connected to the new ECU. |
| warn | DATASET_GAP | KV12 A | 5 of 26 cavities on KV12 A have no pin data (5,6,7,12,13). Anything there is invisible to these checks. |
| warn | DBW_MOTOR_CURRENT | KV12-B-18 | Cannot confirm KV12 can drive the throttle motor: KV12-B-18 "Auxiliary Output 9" is rated 5 A, but the motor current at OEM-X60003-43 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_CURRENT | KV12-B-19 | Cannot confirm KV12 can drive the throttle motor: KV12-B-19 "Auxiliary Output 10" is rated 5 A, but the motor current at OEM-X60003-44 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_ISOLATION | KV12-D-20 | KV12-D-20 "Auxiliary Output 9-12 14V Supply" is fed from the same net as the ECU main supply (KV12-D-1). Link's S2000 DBW wiring feeds the throttle-motor supply through a separate isolation relay switched by the ECU, so motor power can be cut on a throttle fault. Add one, or confirm KV12 cuts the H-bridge internally. |
| info | NET_FAMILY | OEM-X60003-22 ↔ KV12-C-12 | OEM-X60003-22 "Intake air temperature (IAT)" [temp_in] is wired to KV12-C-12 "Analog Input Channel 11" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-X60003-24 ↔ KV12-C-11 | OEM-X60003-24 "Engine coolant temperature (ECT)" [temp_in] is wired to KV12-C-11 "Analog Input Channel 10" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-X60003-27 ↔ KV12-C-13 | OEM-X60003-27 "Engine oil temperature" [temp_in] is wired to KV12-C-13 "Analog Input Channel 12" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-X60003-49 ↔ KV12-B-7 | OEM-X60003-49 "DISA intake flap" [low_side_out] is wired to KV12-B-7 "Injection Channel 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-X60004-12 ↔ KV12-D-7 | OEM-X60004-12 "Pedal ground 2" [sensor_ground] is wired to KV12-D-7 "Sync Sensor -" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 2 optional OEM pins are not mapped: OEM-X60003-31 Knock sensor, cylinders 4-6 (A); OEM-X60003-32 Knock sensor, cylinders 4-6 (B) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-X60001-7 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: unconfirmed. Confirm these before building: - Needs CAN (E46 K-bus/CAN); not documented for this ECU - Trigger pattern for BMW M54 not found in the ECU's docs (SL-series lists only generic Crank Index + Sync inputs; no BMW trigger preset) - This car has EWS 3.3 (rolling code) immobilizer; needs a delete/bypass Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Open items: - OEM-X60003 5: Intake camshaft position: no free cam_hall/cam_vr/frequency_in input on Emtron KV12 Not wired: - OEM-X60001 7: Battery constant (terminal 30): Emtron KV12 has no battery-constant input; not needed - KV12-D 12: Knock 1 - left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - KV12-D 18: Knock 2 - left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - OEM-X60003 31: Knock sensor, cylinders 4-6 (A): no free knock input on Emtron KV12 - OEM-X60003 32: Knock sensor, cylinders 4-6 (B): no free knock input on Emtron KV12 - KV12-D 15: Ignition Switch Input: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Emtron KV12/KV16 Pinout Rev2 | https://github.com/emtron-australia/help | — | 2026-10-05 | 2f3a1b2d2ed4 |
| 2 | community_copy | ms4x.net: Siemens MS43 Pinout | https://www.ms4x.net/index.php?title=Siemens_MS43_Pinout | — | — | — |
| 2 | community_copy | rusefi wiki: 2002 BMW 325 / 2004 BMW 330Ci E46 DME pinout (M54/MS43) | https://github.com/rusefi/rusefi/wiki/2002-BMW-325-and-2004-BMW-330Ci-E46-DME-pinout | — | — | — |