RSX Type-S 2002-04 (K20A2) → Emtron KV12 (auto)
RSX Type-S 2002-04 (K20A2) — 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 | 71 wires · 11 connectors · 9 part lines |
| Tools | 715131-1 · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 3-1447221-4 · 316836-1 |
| 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-A-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-3 | 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-A-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-E-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | KV12-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | KV12-B-34 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | KV12-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | KV12-C-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-GND-1 | KV12-C-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | KV12-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | KV12-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-5V1-1 | KV12-D-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-21 | KV12-D-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-7 | KV12-D-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | SP-0V-1 | KV12-D-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-25 | KV12-D-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-0V-1 | KV12-D-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-9 | KV12-D-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-30 | KV12-B-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-29 | KV12-B-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-28 | KV12-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-27 | KV12-B-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-5 | KV12-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-4 | KV12-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-3 | KV12-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-2 | KV12-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E-9 | KV12-D-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E-7 | KV12-D-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-6 | KV12-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E-1 | KV12-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E-18 | KV12-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E-8 | KV12-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E-6 | KV12-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-1 | KV12-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-12 | KV12-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B-15 | KV12-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B-1 | KV12-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-B-18 | KV12-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-B-21 | KV12-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-B-23 | KV12-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-B-7 | KV12-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E-21 | KV12-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E-31 | KV12-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-6 | KV12-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A-16 | KV12-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A-22 | KV12-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-A-19 | KV12-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A-15 | KV12-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E-2 | KV12-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-B-8 | KV12-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-B-17 | KV12-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-B-13 | KV12-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-E-14 | KV12-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-E-15 | KV12-C-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-A-18 | KV12-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-B-10 | KV12-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-B-9 | KV12-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-E-16 | KV12-C-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-E-20 | KV12-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-E-22 | KV12-C-32 | 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-A-19 | open (OL) | +12 V supply must not touch power ground | |
| 2 | KV12-D-1 | KV12-C-17 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | KV12-A-19 | KV12-A-16 | open (OL) | power ground must not touch +12 V supply | |
| 4 | KV12-A-19 | KV12-D-21 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | KV12-A-19 | KV12-D-22 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | KV12-C-17 | KV12-A-16 | open (OL) | sensor ground must not touch +12 V supply | |
| 7 | KV12-C-17 | KV12-D-21 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 8 | KV12-C-17 | KV12-D-22 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 9 | KV12-D-1 | KV12-D-21 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 10 | KV12-D-1 | KV12-D-22 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 11 | KV12-D-21 | KV12-A-16 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 12 | KV12-D-22 | KV12-A-16 | open (OL) | 5 V sensor reference must not touch +12 V supply |
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 | — | W54 | — | 0.5 | OEM-E-31 | — | — | — |
| 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 - | — | W44 | — | 0.5 | OEM-E-6 | — | — | — |
| 11 | Lambda 2 Heater - | — | W45 | — | 0.5 | OEM-A-1 | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Ignition Channel 11 | — | — | — | — | — | — | — | — |
| 15 | Ignition Channel 12 | — | — | — | — | — | — | — | — |
| 16 | Lambda 1 Heater + | — | W57 | — | 0.5 | OEM-A-22 | — | — | — |
| 17 | Lambda 2 Heater + | — | — | — | — | — | — | — | — |
| 18 | Lambda 1 Nernst Cell (Vs) | — | W56 | — | 0.5 | OEM-A-16 | — | — | — |
| 19 | ECU Ground | — | W11 | — | 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) | — | W55 | — | 0.5 | OEM-A-6 | — | — | — |
| 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 | — | W34 | — | 0.5 | OEM-B-5 | — | — | — |
| 2 | Injection Channel 2 | — | W35 | — | 0.5 | OEM-B-4 | — | — | — |
| 3 | Injection Channel 3 | — | W36 | — | 0.5 | OEM-B-3 | — | — | — |
| 4 | Injection Channel 4 | — | W37 | — | 0.5 | OEM-B-2 | — | — | — |
| 5 | Injection Channel 5 | — | W50 | — | 0.5 | OEM-B-21 | — | — | — |
| 6 | Injection Channel 6 | — | W51 | — | 0.5 | OEM-B-23 | — | — | — |
| 7 | Injection Channel 7 | — | W52 | — | 0.5 | OEM-B-7 | — | — | — |
| 8 | Injection Channel 8 | — | W53 | — | 0.5 | OEM-E-21 | — | — | — |
| 9 | ECU Ground | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | Auxiliary Output 1 | — | W46 | — | 0.5 | OEM-A-12 | — | — | — |
| 11 | Auxiliary Output 2 | — | W47 | — | 0.5 | OEM-B-15 | — | — | — |
| 12 | Auxiliary Output 3 | — | W48 | — | 0.5 | OEM-B-1 | — | — | — |
| 13 | Auxiliary Output 4 | — | W49 | — | 0.5 | OEM-B-18 | — | — | — |
| 14 | Auxiliary Output 5 | — | W40 | — | 0.5 | OEM-B-6 | — | — | — |
| 15 | Auxiliary Output 6 | — | W41 | — | 0.5 | OEM-E-1 | — | — | — |
| 16 | Auxiliary Output 7 | — | W42 | — | 0.5 | OEM-E-18 | — | — | — |
| 17 | Auxiliary Output 8 | — | W43 | — | 0.5 | OEM-E-8 | — | — | — |
| 18 | Auxiliary Output 9 | — | — | — | — | — | — | — | — |
| 19 | Auxiliary Output 10 | — | — | — | — | — | — | — | — |
| 20 | Auxiliary Output 11 | — | — | — | — | — | — | — | — |
| 21 | Auxiliary Output 12 | — | — | — | — | — | — | — | — |
| 22 | Auxiliary Output 13 | — | — | — | — | — | — | — | — |
| 23 | Auxiliary Output 14 | — | — | — | — | — | — | — | — |
| 24 | Auxiliary Output 15 | — | — | — | — | — | — | — | — |
| 25 | Auxiliary Output 16 | — | — | — | — | — | — | — | — |
| 26 | Ignition Channel 1 | — | W30 | — | 0.5 | OEM-A-30 | — | — | — |
| 27 | Ignition Channel 2 | — | W31 | — | 0.5 | OEM-A-29 | — | — | — |
| 28 | Ignition Channel 3 | — | W32 | — | 0.5 | OEM-A-28 | — | — | — |
| 29 | Ignition Channel 4 | — | W33 | — | 0.5 | OEM-A-27 | — | — | — |
| 30 | Ignition Channel 5 | — | — | — | — | — | — | — | — |
| 31 | Ignition Channel 6 | — | — | — | — | — | — | — | — |
| 32 | Ignition Channel 7 | — | — | — | — | — | — | — | — |
| 33 | Ignition Channel 8 | — | — | — | — | — | — | — | — |
| 34 | ECU Ground | — | W12 | — | 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 | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Analog Input Channel 1 | — | W58 | — | 0.5 | OEM-A-19 | — | — | — |
| 3 | Analog Input Channel 2 | — | W59 | — | 0.5 | OEM-A-15 | — | — | — |
| 4 | Analog Input Channel 3 | — | W60 | — | 0.5 | OEM-E-2 | — | — | — |
| 5 | Analog Input Channel 4 | — | W61 | — | 0.5 | OEM-B-8 | — | — | — |
| 6 | Analog Input Channel 5 | — | W62 | — | 0.5 | OEM-B-17 | — | — | — |
| 7 | Analog Input Channel 6 | — | W63 | — | 0.5 | OEM-B-13 | — | — | — |
| 8 | Analog Input Channel 7 | — | W64 | — | 0.5 | OEM-E-14 | — | — | — |
| 9 | Analog Input Channel 8 | — | W65 | — | 0.5 | OEM-E-15 | — | — | — |
| 10 | Analog Input Channel 9 | — | — | — | — | — | — | — | — |
| 11 | Analog Input Channel 10 | — | — | — | — | — | — | — | — |
| 12 | Analog Input Channel 11 | — | — | — | — | — | — | — | — |
| 13 | Analog Input Channel 12 | — | — | — | — | — | — | — | — |
| 14 | Analog Input Channel 13 | — | — | — | — | — | — | — | — |
| 15 | Analog Input Channel 14 | — | — | — | — | — | — | — | — |
| 16 | Analog Input Channel 15 | — | — | — | — | — | — | — | — |
| 17 | Analog Sensor 0V Reference | — | W19 | — | 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 | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 26 | ECU Ground | — | W15 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | Digital Input 1 | — | W66 | — | 0.5 | OEM-A-18 | — | — | — |
| 28 | Digital Input 2 | — | W67 | — | 0.5 | OEM-B-10 | — | — | — |
| 29 | Digital Input 3 | — | W68 | — | 0.5 | OEM-B-9 | — | — | — |
| 30 | Digital Input 4 | — | W69 | — | 0.5 | OEM-E-16 | — | — | — |
| 31 | Digital Input 5 | — | W70 | — | 0.5 | OEM-E-20 | — | — | — |
| 32 | Digital Input 6 | — | W71 | — | 0.5 | OEM-E-22 | — | — | — |
| 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 + | — | W25 | — | 0.5 | OEM-A-7 | — | — | — |
| 5 | Crank Index Sensor - | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sync Sensor + | — | W27 | — | 0.5 | OEM-A-25 | — | — | — |
| 7 | Sync Sensor - | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | CAN 1H | — | — | — | — | — | — | — | — |
| 9 | EFI Relay Output (Low Side 200mA) | — | W39 | — | 0.5 | OEM-E-7 | — | — | — |
| 10 | CAN 2H | — | — | — | — | — | — | — | — |
| 11 | Knock 1 + | — | W29 | — | 0.5 | OEM-A-9 | — | — | — |
| 12 | Knock 1 - | — | — | — | — | — | — | — | — |
| 13 | Shield (Crank/Cam/ Knock) | — | — | — | — | — | — | — | — |
| 14 | CAN 1L | — | — | — | — | — | — | — | — |
| 15 | Ignition Switch Input | — | W38 | — | 0.5 | OEM-E-9 | — | — | — |
| 16 | CAN 2L | — | — | — | — | — | — | — | — |
| 17 | Knock 2 + | — | — | — | — | — | — | — | — |
| 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 | — | W23 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Sensor Supply Vref2: 5.0V | — | W24 | — | 0.5 | OEM-A-21 | — | — | — |
| 23 | Ethernet Tx + | — | — | — | — | — | — | — | — |
| 24 | Ethernet Tx - | — | — | — | — | — | — | — | — |
| 25 | Ethernet Rx + | — | — | — | — | — | — | — | — |
| 26 | Ethernet Rx - | — | — | — | — | — | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/F sensor heater control (AFSHTC) | — | W45 | — | 0.5 | KV12-A-11 | — | — | — |
| 2 | Ignition power 2 (IGP2) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 (IGP1) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 (PG2) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 (PG1) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | A/F sensor + (AFS+, wideband Ip) | — | W55 | — | 0.5 | KV12-A-25 | — | — | — |
| 7 | Crank position sensor (CKP) | — | W25 | — | 0.5 | KV12-D-4 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Knock sensor (KS) | — | W29 | — | 0.5 | KV12-D-11 | — | — | — |
| 10 | Sensor ground 2 (SG2) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Sensor ground 1 (SG1) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Idle air control valve (IACV) | — | W46 | — | 0.5 | KV12-B-10 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | Throttle position sensor (TPS) | — | W59 | — | 0.5 | KV12-C-3 | — | — | — |
| 16 | A/F sensor - (AFS-, wideband Vs) | — | W56 | — | 0.5 | KV12-A-18 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor (VSS, M/T) | — | W66 | — | 0.5 | KV12-C-27 | — | — | — |
| 19 | Manifold absolute pressure (MAP) | — | W58 | — | 0.5 | KV12-C-2 | — | — | — |
| 20 | Sensor 5V supply 2 (VCC2) | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor 5V supply 1 (VCC1) | — | W24 | — | 0.5 | KV12-D-22 | — | — | — |
| 22 | A/F sensor heater supply (AFSHTC+) | — | W57 | — | 0.5 | KV12-A-16 | — | — | — |
| 23 | Logic ground 2 (LG2) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Logic ground 1 (LG1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Camshaft position A (CMP A) | — | W27 | — | 0.5 | KV12-D-6 | — | — | — |
| 26 | Camshaft position B (CMP B) | — | — | — | — | — | — | — | — |
| 27 | Ignition coil 4 (IGPLS4) | — | W33 | — | 0.5 | KV12-B-29 | — | — | — |
| 28 | Ignition coil 3 (IGPLS3) | — | W32 | — | 0.5 | KV12-B-28 | — | — | — |
| 29 | Ignition coil 2 (IGPLS2) | — | W31 | — | 0.5 | KV12-B-27 | — | — | — |
| 30 | Ignition coil 1 (IGPLS1) | — | W30 | — | 0.5 | KV12-B-26 | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTC oil control solenoid (+) | — | W48 | — | 0.5 | KV12-B-12 | — | — | — |
| 2 | Injector 4 (INJ4) | — | W37 | — | 0.5 | KV12-B-4 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W36 | — | 0.5 | KV12-B-3 | — | — | — |
| 4 | Injector 2 (INJ2) | — | W35 | — | 0.5 | KV12-B-2 | — | — | — |
| 5 | Injector 1 (INJ1) | — | W34 | — | 0.5 | KV12-B-1 | — | — | — |
| 6 | Radiator fan control (FANC) | — | W40 | — | 0.5 | KV12-B-14 | — | — | — |
| 7 | Reverse lockout solenoid (RVS, Type-S) | — | W52 | — | 0.5 | KV12-B-7 | — | — | — |
| 8 | Coolant temp sensor (ECT) | — | W61 | — | 0.5 | KV12-C-5 | — | — | — |
| 9 | VTEC oil pressure switch (VTPSW) | — | W68 | — | 0.5 | KV12-C-29 | — | — | — |
| 10 | Alternator L signal (ALTL) | — | W67 | — | 0.5 | KV12-C-28 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal (ALTF) | — | W63 | — | 0.5 | KV12-C-7 | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | VTEC solenoid (VTS) | — | W47 | — | 0.5 | KV12-B-11 | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor (IAT) | — | W62 | — | 0.5 | KV12-C-6 | — | — | — |
| 18 | Alternator control (ALTC) | — | W49 | — | 0.5 | KV12-B-13 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve (PCS) | — | W50 | — | 0.5 | KV12-B-5 | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | VTC oil control solenoid (-) | — | W51 | — | 0.5 | KV12-B-6 | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Immobilizer fuel pump relay (IMO FPR) | — | W41 | — | 0.5 | KV12-B-15 | — | — | — |
| 2 | Secondary heated O2 sensor (SHO2S) | — | W60 | — | 0.5 | KV12-C-4 | — | — | — |
| 3 | Logic ground 3 (LG3) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 (SG3) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor 5V supply 3 (VCC3) | — | W22 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Secondary O2 heater control (SO2SHTC) | — | W44 | — | 0.5 | KV12-A-10 | — | — | — |
| 7 | Main relay control (MRLY) | — | W39 | — | 0.5 | KV12-D-9 | — | — | — |
| 8 | A/F sensor heater relay control (AFSHTCR) | — | W43 | — | 0.5 | KV12-B-17 | — | — | — |
| 9 | Ignition switch signal (IG1) | — | W38 | — | 0.5 | KV12-D-15 | — | — | — |
| 10 | — | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor (FTP) | — | W64 | — | 0.5 | KV12-C-8 | — | — | — |
| 15 | Electrical load detector (ELD) | — | W65 | — | 0.5 | KV12-C-9 | — | — | — |
| 16 | Power steering pressure switch (PSPSW) | — | W69 | — | 0.5 | KV12-C-30 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | A/C clutch relay (ACC) | — | W42 | — | 0.5 | KV12-B-16 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | Brake switch / interlock (2WBS) | — | W70 | — | 0.5 | KV12-C-31 | — | — | — |
| 21 | Evap vent shut valve (VSV) | — | W53 | — | 0.5 | KV12-B-8 | — | — | — |
| 22 | Brake switch (BKSW) | — | W71 | — | 0.5 | KV12-C-32 | — | — | — |
| 23 | K-line (diagnostic) | — | — | — | — | — | — | — | — |
| 24 | Multiplex communication (SEFMJ) | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — |
| 26 | Engine speed pulse / tacho (NEP) | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code (IMOCD) | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | Service check signal (SCS) | — | — | — | — | — | — | — | — |
| 30 | Write enable signal (WEN) | — | — | — | — | — | — | — | — |
| 31 | Malfunction indicator lamp (MIL) | — | W54 | — | 0.5 | KV12-A-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W18 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | KV12-C-17 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | KV12-C-25 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | KV12-D-5 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | KV12-D-7 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-A-10 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-A-11 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | KV12-D-20 | — | — | — |
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | KV12-D-1 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | KV12-D-2 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W21 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-E-5 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | KV12-D-21 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | KV12-A-19 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | KV12-B-34 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | KV12-B-9 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | KV12-C-1 | — | — | — |
| 1 | — | — | W15 | — | 0.85 | KV12-C-26 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | A/F sensor heater control (AFSHTC) | low_side_out | KV12-A-11 | Lambda 2 Heater - | low_side_out | single_source | |
| OEM-A-10 | Sensor ground 2 (SG2) | 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-A-11 | Sensor ground 1 (SG1) | 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-A-12 | Idle air control valve (IACV) | low_side_out | KV12-B-10 | Auxiliary Output 1 | low_side_out | corroborated | |
| OEM-A-15 | Throttle position sensor (TPS) | analog_in | KV12-C-3 | Analog Input Channel 2 | analog_in | corroborated | |
| OEM-A-16 | A/F sensor - (AFS-, wideband Vs) | wb_vs | KV12-A-18 | Lambda 1 Nernst Cell (Vs) | wb_vs | single_source | |
| OEM-A-18 | Vehicle speed sensor (VSS, M/T) | digital_in | KV12-C-27 | Digital Input 1 | digital_in | corroborated | |
| OEM-A-19 | Manifold absolute pressure (MAP) | analog_in | KV12-C-2 | Analog Input Channel 1 | analog_in | corroborated | |
| OEM-A-2 | Ignition power 2 (IGP2) | 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-A-20 | Sensor 5V supply 2 (VCC2) | vref | KV12-D-21 | Sensor Supply Vref1: 5.0V | vref | corroborated | |
| OEM-A-21 | Sensor 5V supply 1 (VCC1) | vref | KV12-D-22 | Sensor Supply Vref2: 5.0V | vref | corroborated | |
| OEM-A-22 | A/F sensor heater supply (AFSHTC+) | power_out | KV12-A-16 | Lambda 1 Heater + | power_out | single_source | |
| OEM-A-23 | Logic ground 2 (LG2) | 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-A-24 | Logic ground 1 (LG1) | 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-A-25 | Camshaft position A (CMP A) | trigger_in | KV12-D-6 | Sync Sensor + | trigger_in | single_source | |
| OEM-A-26 | Camshaft position B (CMP B) | trigger_in | — | — | — | single_source | |
| OEM-A-27 | Ignition coil 4 (IGPLS4) | ignition_out | KV12-B-29 | Ignition Channel 4 | ignition_out | corroborated | |
| OEM-A-28 | Ignition coil 3 (IGPLS3) | ignition_out | KV12-B-28 | Ignition Channel 3 | ignition_out | corroborated | |
| OEM-A-29 | Ignition coil 2 (IGPLS2) | ignition_out | KV12-B-27 | Ignition Channel 2 | ignition_out | corroborated | |
| OEM-A-3 | Ignition power 1 (IGP1) | 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-A-30 | Ignition coil 1 (IGPLS1) | ignition_out | KV12-B-26 | Ignition Channel 1 | ignition_out | corroborated | |
| OEM-A-4 | Power ground 2 (PG2) | 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-A-5 | Power ground 1 (PG1) | 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-A-6 | A/F sensor + (AFS+, wideband Ip) | wb_ip | KV12-A-25 | Lambda 1 Pump Cell (Ip) | wb_ip | single_source | |
| OEM-A-7 | Crank position sensor (CKP) | trigger_in | KV12-D-4 | Crank Index Sensor + | trigger_in | corroborated | |
| OEM-A-9 | Knock sensor (KS) | knock_in | KV12-D-11 | Knock 1 + | knock_in | corroborated | |
| OEM-B-1 | VTC oil control solenoid (+) | low_side_out | KV12-B-12 | Auxiliary Output 3 | low_side_out | corroborated | |
| OEM-B-10 | Alternator L signal (ALTL) | digital_in | KV12-C-28 | Digital Input 2 | digital_in | single_source | |
| OEM-B-13 | Alternator FR signal (ALTF) | analog_in | KV12-C-7 | Analog Input Channel 6 | analog_in | single_source | |
| OEM-B-15 | VTEC solenoid (VTS) | low_side_out | KV12-B-11 | Auxiliary Output 2 | low_side_out | single_source | |
| OEM-B-17 | Intake air temp sensor (IAT) | temp_in | KV12-C-6 | Analog Input Channel 5 | analog_in | corroborated | |
| OEM-B-18 | Alternator control (ALTC) | low_side_out | KV12-B-13 | Auxiliary Output 4 | low_side_out | corroborated | |
| OEM-B-2 | Injector 4 (INJ4) | injector_out | KV12-B-4 | Injection Channel 4 | injector_out | corroborated | |
| OEM-B-21 | Evap canister purge valve (PCS) | low_side_out | KV12-B-5 | Injection Channel 5 | injector_out | corroborated | |
| OEM-B-23 | VTC oil control solenoid (-) | low_side_out | KV12-B-6 | Injection Channel 6 | injector_out | corroborated | |
| OEM-B-3 | Injector 3 (INJ3) | injector_out | KV12-B-3 | Injection Channel 3 | injector_out | corroborated | |
| OEM-B-4 | Injector 2 (INJ2) | injector_out | KV12-B-2 | Injection Channel 2 | injector_out | corroborated | |
| OEM-B-5 | Injector 1 (INJ1) | injector_out | KV12-B-1 | Injection Channel 1 | injector_out | corroborated | |
| OEM-B-6 | Radiator fan control (FANC) | low_side_out | KV12-B-14 | Auxiliary Output 5 | low_side_out | corroborated | |
| OEM-B-7 | Reverse lockout solenoid (RVS, Type-S) | low_side_out | KV12-B-7 | Injection Channel 7 | injector_out | corroborated | |
| OEM-B-8 | Coolant temp sensor (ECT) | temp_in | KV12-C-5 | Analog Input Channel 4 | analog_in | corroborated | |
| OEM-B-9 | VTEC oil pressure switch (VTPSW) | digital_in | KV12-C-29 | Digital Input 3 | digital_in | corroborated | |
| OEM-E-1 | Immobilizer fuel pump relay (IMO FPR) | low_side_out | KV12-B-15 | Auxiliary Output 6 | low_side_out | corroborated | |
| OEM-E-14 | Fuel tank pressure sensor (FTP) | analog_in | KV12-C-8 | Analog Input Channel 7 | analog_in | corroborated | |
| OEM-E-15 | Electrical load detector (ELD) | analog_in | KV12-C-9 | Analog Input Channel 8 | analog_in | corroborated | |
| OEM-E-16 | Power steering pressure switch (PSPSW) | digital_in | KV12-C-30 | Digital Input 4 | digital_in | corroborated | |
| OEM-E-18 | A/C clutch relay (ACC) | low_side_out | KV12-B-16 | Auxiliary Output 7 | low_side_out | corroborated | |
| OEM-E-2 | Secondary heated O2 sensor (SHO2S) | lambda_nb_in | KV12-C-4 | Analog Input Channel 3 | analog_in | corroborated | |
| OEM-E-20 | Brake switch / interlock (2WBS) | digital_in | KV12-C-31 | Digital Input 5 | digital_in | single_source | |
| OEM-E-21 | Evap vent shut valve (VSV) | low_side_out | KV12-B-8 | Injection Channel 8 | injector_out | corroborated | |
| OEM-E-22 | Brake switch (BKSW) | digital_in | KV12-C-32 | Digital Input 6 | digital_in | corroborated | |
| OEM-E-23 | K-line (diagnostic) | serial | — | — | — | single_source | |
| OEM-E-24 | Multiplex communication (SEFMJ) | serial | — | — | — | corroborated | |
| OEM-E-26 | Engine speed pulse / tacho (NEP) | tacho_out | — | — | — | corroborated | |
| OEM-E-27 | Immobilizer code (IMOCD) | — | — | — | — | single_source | |
| OEM-E-29 | Service check signal (SCS) | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 (LG3) | 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-E-30 | Write enable signal (WEN) | — | — | — | — | single_source | |
| OEM-E-31 | Malfunction indicator lamp (MIL) | low_side_out | KV12-A-1 | Injection Channel 9 | injector_out | corroborated | |
| OEM-E-4 | Sensor ground 3 (SG3) | 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-E-5 | Sensor 5V supply 3 (VCC3) | vref | KV12-D-21 | Sensor Supply Vref1: 5.0V | vref | corroborated | |
| OEM-E-6 | Secondary O2 heater control (SO2SHTC) | low_side_out | KV12-A-10 | Lambda 1 Heater - | low_side_out | corroborated | |
| OEM-E-7 | Main relay control (MRLY) | low_side_out | KV12-D-9 | EFI Relay Output (Low Side 200mA) | low_side_out | corroborated | |
| OEM-E-8 | A/F sensor heater relay control (AFSHTCR) | low_side_out | KV12-B-17 | Auxiliary Output 8 | low_side_out | corroborated | |
| OEM-E-9 | Ignition switch signal (IG1) | digital_in | KV12-D-15 | Ignition Switch Input | digital_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | no route | Ignition power 2 (IGP2) | — | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | no route | Ignition power 1 (IGP1) | — | |
| 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-A-23 | SP-GND-1 | 0.85 | no route | Logic ground 2 (LG2) | — | |
| W7 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Logic ground 1 (LG1) | — | |
| W8 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 (PG2) | — | |
| W9 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 (PG1) | — | |
| W10 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 (LG3) | — | |
| W11 | SP-GND-1 | KV12-A-19 | 0.85 | no route | ECU Ground | — | |
| W12 | SP-GND-1 | KV12-B-34 | 0.85 | no route | ECU Ground | — | |
| W13 | SP-GND-1 | KV12-B-9 | 0.85 | no route | ECU Ground | — | |
| W14 | SP-GND-1 | KV12-C-1 | 0.85 | no route | ECU Ground | — | |
| W15 | SP-GND-1 | KV12-C-26 | 0.85 | no route | ECU Ground | — | |
| W16 | OEM-A-10 | SP-0V-1 | 0.5 | no route | Sensor ground 2 (SG2) | — | |
| W17 | OEM-A-11 | SP-0V-1 | 0.5 | no route | Sensor ground 1 (SG1) | — | |
| W18 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 (SG3) | — | |
| W19 | SP-0V-1 | KV12-C-17 | 0.5 | no route | Analog Sensor 0V Reference | — | |
| W20 | SP-0V-1 | KV12-C-25 | 0.5 | no route | Analog Sensor 0V Reference | — | |
| W21 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 2 (VCC2) | — | |
| W22 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 3 (VCC3) | — | |
| W23 | SP-5V1-1 | KV12-D-21 | 0.5 | no route | Sensor Supply Vref1: 5.0V | — | |
| W24 | OEM-A-21 | KV12-D-22 | 0.5 | no route | Sensor 5V supply 1 (VCC1) | — | |
| W25 | OEM-A-7 | KV12-D-4 | 0.5 | no route | Crank position sensor (CKP) | — | |
| W26 | SP-0V-1 | KV12-D-5 | 0.5 | no route | Crank Index Sensor - | — | |
| W27 | OEM-A-25 | KV12-D-6 | 0.5 | no route | Camshaft position A (CMP A) | — | |
| W28 | SP-0V-1 | KV12-D-7 | 0.5 | no route | Sync Sensor - | — | |
| W29 | OEM-A-9 | KV12-D-11 | 0.5 | no route | Knock sensor (KS) | — | |
| W30 | OEM-A-30 | KV12-B-26 | 0.5 | no route | Ignition coil 1 (IGPLS1) | — | |
| W31 | OEM-A-29 | KV12-B-27 | 0.5 | no route | Ignition coil 2 (IGPLS2) | — | |
| W32 | OEM-A-28 | KV12-B-28 | 0.5 | no route | Ignition coil 3 (IGPLS3) | — | |
| W33 | OEM-A-27 | KV12-B-29 | 0.5 | no route | Ignition coil 4 (IGPLS4) | — | |
| W34 | OEM-B-5 | KV12-B-1 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W35 | OEM-B-4 | KV12-B-2 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W36 | OEM-B-3 | KV12-B-3 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W37 | OEM-B-2 | KV12-B-4 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W38 | OEM-E-9 | KV12-D-15 | 0.5 | no route | Ignition switch signal (IG1) | — | |
| W39 | OEM-E-7 | KV12-D-9 | 0.5 | no route | Main relay control (MRLY) | — | |
| W40 | OEM-B-6 | KV12-B-14 | 0.5 | no route | Radiator fan control (FANC) | — | |
| W41 | OEM-E-1 | KV12-B-15 | 0.5 | no route | Immobilizer fuel pump relay (IMO FPR) | — | |
| W42 | OEM-E-18 | KV12-B-16 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W43 | OEM-E-8 | KV12-B-17 | 0.5 | no route | A/F sensor heater relay control (AFSHTCR) | — | |
| W44 | OEM-E-6 | KV12-A-10 | 0.5 | no route | Secondary O2 heater control (SO2SHTC) | — | |
| W45 | OEM-A-1 | KV12-A-11 | 0.5 | no route | A/F sensor heater control (AFSHTC) | — | |
| W46 | OEM-A-12 | KV12-B-10 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W47 | OEM-B-15 | KV12-B-11 | 0.5 | no route | VTEC solenoid (VTS) | — | |
| W48 | OEM-B-1 | KV12-B-12 | 0.5 | no route | VTC oil control solenoid (+) | — | |
| W49 | OEM-B-18 | KV12-B-13 | 0.5 | no route | Alternator control (ALTC) | — | |
| W50 | OEM-B-21 | KV12-B-5 | 0.5 | no route | Evap canister purge valve (PCS) | — | |
| W51 | OEM-B-23 | KV12-B-6 | 0.5 | no route | VTC oil control solenoid (-) | — | |
| W52 | OEM-B-7 | KV12-B-7 | 0.5 | no route | Reverse lockout solenoid (RVS, Type-S) | — | |
| W53 | OEM-E-21 | KV12-B-8 | 0.5 | no route | Evap vent shut valve (VSV) | — | |
| W54 | OEM-E-31 | KV12-A-1 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W55 | OEM-A-6 | KV12-A-25 | 0.5 | no route | A/F sensor + (AFS+, wideband Ip) | — | |
| W56 | OEM-A-16 | KV12-A-18 | 0.5 | no route | A/F sensor - (AFS-, wideband Vs) | — | |
| W57 | OEM-A-22 | KV12-A-16 | 0.5 | no route | A/F sensor heater supply (AFSHTC+) | — | |
| W58 | OEM-A-19 | KV12-C-2 | 0.5 | no route | Manifold absolute pressure (MAP) | — | |
| W59 | OEM-A-15 | KV12-C-3 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W60 | OEM-E-2 | KV12-C-4 | 0.5 | no route | Secondary heated O2 sensor (SHO2S) | — | |
| W61 | OEM-B-8 | KV12-C-5 | 0.5 | no route | Coolant temp sensor (ECT) | — | |
| W62 | OEM-B-17 | KV12-C-6 | 0.5 | no route | Intake air temp sensor (IAT) | — | |
| W63 | OEM-B-13 | KV12-C-7 | 0.5 | no route | Alternator FR signal (ALTF) | — | |
| W64 | OEM-E-14 | KV12-C-8 | 0.5 | no route | Fuel tank pressure sensor (FTP) | — | |
| W65 | OEM-E-15 | KV12-C-9 | 0.5 | no route | Electrical load detector (ELD) | — | |
| W66 | OEM-A-18 | KV12-C-27 | 0.5 | no route | Vehicle speed sensor (VSS, M/T) | — | |
| W67 | OEM-B-10 | KV12-C-28 | 0.5 | no route | Alternator L signal (ALTL) | — | |
| W68 | OEM-B-9 | KV12-C-29 | 0.5 | no route | VTEC oil pressure switch (VTPSW) | — | |
| W69 | OEM-E-16 | KV12-C-30 | 0.5 | no route | Power steering pressure switch (PSPSW) | — | |
| W70 | OEM-E-20 | KV12-C-31 | 0.5 | no route | Brake switch / interlock (2WBS) | — | |
| W71 | OEM-E-22 | KV12-C-32 | 0.5 | no route | Brake switch (BKSW) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 1318682-6 | TE | K-series ECU harness plug A (040-3 HD plug assy, 31P) | 1.000 | ea |
| 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 | 353029-1 | TE | K-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P) | 1.000 | ea |
| connector | 353826-1 | TE | K-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P) | 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 |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 59.000 | ea |
| terminal | 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 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 (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-A-26 | Required OEM function "Camshaft position B (CMP B)" (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 | DATASET_GAP | RSX ECU A | 5 of 31 cavities on RSX ECU A have no pin data (8,13,14,17,31). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU B | 8 of 24 cavities on RSX ECU B have no pin data (11,12,14,16,19,20,22,24). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU E | 8 of 31 cavities on RSX ECU E have no pin data (10,11,12,13,17,19,25,28). Anything there is invisible to these checks. |
| warn | SUPPLY_GROUP | KV12-D-21 + OEM-A-20 + OEM-E-5 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-A-20 [k_vcc2], OEM-E-5 [k_vcc3]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all. |
| info | NET_FAMILY | OEM-B-17 ↔ KV12-C-6 | OEM-B-17 "Intake air temp sensor (IAT)" [temp_in] is wired to KV12-C-6 "Analog Input Channel 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-B-21 ↔ KV12-B-5 | OEM-B-21 "Evap canister purge valve (PCS)" [low_side_out] is wired to KV12-B-5 "Injection Channel 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-23 ↔ KV12-B-6 | OEM-B-23 "VTC oil control solenoid (-)" [low_side_out] is wired to KV12-B-6 "Injection Channel 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-7 ↔ KV12-B-7 | OEM-B-7 "Reverse lockout solenoid (RVS, Type-S)" [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-B-8 ↔ KV12-C-5 | OEM-B-8 "Coolant temp sensor (ECT)" [temp_in] is wired to KV12-C-5 "Analog Input Channel 4" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-E-21 ↔ KV12-B-8 | OEM-E-21 "Evap vent shut valve (VSV)" [low_side_out] is wired to KV12-B-8 "Injection Channel 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E-31 ↔ KV12-A-1 | OEM-E-31 "Malfunction indicator lamp (MIL)" [low_side_out] is wired to KV12-A-1 "Injection Channel 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E-4 ↔ KV12-D-5 | OEM-E-4 "Sensor ground 3 (SG3)" [sensor_ground] is wired to KV12-D-5 "Crank Index Sensor -" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 6 optional OEM pins are not mapped: OEM-E-23 K-line (diagnostic); OEM-E-24 Multiplex communication (SEFMJ); OEM-E-26 Engine speed pulse / tacho (NEP); OEM-E-27 Immobilizer code (IMOCD); OEM-E-29 Service check signal (SCS); OEM-E-30 Write enable signal (WEN) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Open items: - OEM-A 26: Camshaft position B (CMP B): no free cam_hall/cam_vr/frequency_in input on Emtron KV12 Not wired: - KV12-D 12: Knock 1 - left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - OEM-E 26: Engine speed pulse / tacho (NEP): no free tacho/frequency_out/low_side/ls_hs on Emtron KV12 - OEM-E 23: K-line (diagnostic): no free k_line on Emtron KV12 - OEM-E 24: Multiplex communication (SEFMJ): no free k_line on Emtron KV12 - OEM-E 27: Immobilizer code (IMOCD): not classified in the library; wire by hand - OEM-E 29: Service check signal (SCS): not classified in the library; wire by hand - OEM-E 30: Write enable signal (WEN): not classified in the library; wire by hand
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 |
| 4 | vendor_doc | Link: CIVICLink K20X (HC20X) DC5 installation manual | https://linkecu.com/documentation/237-4000%20DC5.pdf | archive | 2026-10-05 | 8a1a71301571 |
| 3 | forum | FFS TechNet: K-series 02-06 RSX ECU pin diagram (Helm) | https://ff-squad.com/technet2/k-series-02-06-rsx-ecu-pin-diagram/ | archive | 2026-10-05 | b2b85002666e |