Toyota Mark II JZX90 1992-96 (1JZ-GTE, non-VVT) → Emtron KV12 (auto)
Toyota Mark II JZX90 1992-96 (1JZ-GTE, non-VVT) — Emtron — KV12
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 2: read the Findings page before cutting any wire |
| Size of the job | 82 wires · 11 connectors · 5 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-C86-22 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C86-23 | 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-C85-16 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-C88-28 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-C88-33 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-C88-34 | 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-C84-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-C84-17 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C84-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-C84-6 | 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-C84-1 | KV12-D-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C84-5 | KV12-D-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | KV12-D-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-C84-10 | KV12-D-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | SP-0V-1 | KV12-D-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-C88-5 | KV12-D-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-C88-4 | KV12-D-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-C88-24 | KV12-B-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-C88-16 | KV12-B-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-C88-15 | KV12-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-C88-26 | KV12-B-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-C88-30 | KV12-B-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-C88-29 | KV12-B-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-C88-10 | KV12-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-C88-9 | KV12-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-C88-8 | KV12-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-C86-9 | KV12-D-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-C84-8 | KV12-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-C84-7 | KV12-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-C84-20 | KV12-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-C85-2 | KV12-D-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-C86-5 | KV12-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-C88-3 | KV12-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-C88-11 | KV12-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-C88-23 | KV12-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-C88-17 | KV12-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-C88-22 | KV12-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-C88-21 | KV12-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-C88-20 | KV12-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-C85-3 | KV12-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-C85-4 | KV12-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-C86-8 | KV12-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-C88-27 | KV12-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-C88-7 | KV12-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-C84-12 | KV12-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-C84-13 | KV12-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-C84-14 | KV12-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-C86-13 | KV12-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-C86-12 | KV12-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-C84-4 | KV12-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-C84-9 | KV12-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-C84-15 | KV12-C-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-C84-3 | KV12-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-C85-1 | KV12-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-C85-10 | KV12-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-C88-12 | KV12-C-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-C85-5 | KV12-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-C86-7 | KV12-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-C86-10 | KV12-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-C86-11 | KV12-C-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-C86-6 | KV12-C-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-C85-14 | KV12-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-C85-6 | KV12-C-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-C86-1 | KV12-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W75 | OEM-C86-17 | KV12-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W76 | OEM-C86-18 | KV12-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W77 | OEM-C86-19 | KV12-C-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W78 | OEM-C86-2 | KV12-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W79 | OEM-C86-20 | KV12-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W80 | OEM-C86-25 | KV12-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W81 | OEM-C86-28 | KV12-C-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W82 | OEM-C85-11 | KV12-D-19 | 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-21 | KV12-C-17 | open (OL) | 5 V sensor reference 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-1 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | KV12-D-21 | KV12-D-1 | open (OL) | 5 V sensor reference must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
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 - | — | W43 | — | 0.5 | OEM-C88-3 | — | — | — |
| 11 | Lambda 2 Heater - | — | W51 | — | 0.5 | OEM-C85-4 | — | — | — |
| 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 | — | W34 | — | 0.5 | OEM-C88-10 | — | — | — |
| 2 | Injection Channel 2 | — | W35 | — | 0.5 | OEM-C88-9 | — | — | — |
| 3 | Injection Channel 3 | — | W36 | — | 0.5 | OEM-C88-8 | — | — | — |
| 4 | Injection Channel 4 | — | W52 | — | 0.5 | OEM-C86-8 | — | — | — |
| 5 | Injection Channel 5 | — | W53 | — | 0.5 | OEM-C88-27 | — | — | — |
| 6 | Injection Channel 6 | — | W54 | — | 0.5 | OEM-C88-7 | — | — | — |
| 7 | Injection Channel 7 | — | — | — | — | — | — | — | — |
| 8 | Injection Channel 8 | — | — | — | — | — | — | — | — |
| 9 | ECU Ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | Auxiliary Output 1 | — | W47 | — | 0.5 | OEM-C88-22 | — | — | — |
| 11 | Auxiliary Output 2 | — | W48 | — | 0.5 | OEM-C88-21 | — | — | — |
| 12 | Auxiliary Output 3 | — | W49 | — | 0.5 | OEM-C88-20 | — | — | — |
| 13 | Auxiliary Output 4 | — | W50 | — | 0.5 | OEM-C85-3 | — | — | — |
| 14 | Auxiliary Output 5 | — | W42 | — | 0.5 | OEM-C86-5 | — | — | — |
| 15 | Auxiliary Output 6 | — | W44 | — | 0.5 | OEM-C88-11 | — | — | — |
| 16 | Auxiliary Output 7 | — | W45 | — | 0.5 | OEM-C88-23 | — | — | — |
| 17 | Auxiliary Output 8 | — | W46 | — | 0.5 | OEM-C88-17 | — | — | — |
| 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 | — | W28 | — | 0.5 | OEM-C88-24 | — | — | — |
| 27 | Ignition Channel 2 | — | W29 | — | 0.5 | OEM-C88-16 | — | — | — |
| 28 | Ignition Channel 3 | — | W30 | — | 0.5 | OEM-C88-15 | — | — | — |
| 29 | Ignition Channel 4 | — | W31 | — | 0.5 | OEM-C88-26 | — | — | — |
| 30 | Ignition Channel 5 | — | W32 | — | 0.5 | OEM-C88-30 | — | — | — |
| 31 | Ignition Channel 6 | — | W33 | — | 0.5 | OEM-C88-29 | — | — | — |
| 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 | — | W38 | — | 0.5 | OEM-C84-8 | — | — | — |
| 3 | Analog Input Channel 2 | — | W39 | — | 0.5 | OEM-C84-7 | — | — | — |
| 4 | Analog Input Channel 3 | — | W40 | — | 0.5 | OEM-C84-20 | — | — | — |
| 5 | Analog Input Channel 4 | — | W55 | — | 0.5 | OEM-C84-12 | — | — | — |
| 6 | Analog Input Channel 5 | — | W56 | — | 0.5 | OEM-C84-13 | — | — | — |
| 7 | Analog Input Channel 6 | — | W57 | — | 0.5 | OEM-C84-14 | — | — | — |
| 8 | Analog Input Channel 7 | — | W58 | — | 0.5 | OEM-C86-13 | — | — | — |
| 9 | Analog Input Channel 8 | — | W73 | — | 0.5 | OEM-C85-6 | — | — | — |
| 10 | Analog Input Channel 9 | — | W74 | — | 0.5 | OEM-C86-1 | — | — | — |
| 11 | Analog Input Channel 10 | — | W75 | — | 0.5 | OEM-C86-17 | — | — | — |
| 12 | Analog Input Channel 11 | — | W76 | — | 0.5 | OEM-C86-18 | — | — | — |
| 13 | Analog Input Channel 12 | — | W77 | — | 0.5 | OEM-C86-19 | — | — | — |
| 14 | Analog Input Channel 13 | — | W78 | — | 0.5 | OEM-C86-2 | — | — | — |
| 15 | Analog Input Channel 14 | — | W79 | — | 0.5 | OEM-C86-20 | — | — | — |
| 16 | Analog Input Channel 15 | — | W80 | — | 0.5 | OEM-C86-25 | — | — | — |
| 17 | Analog Sensor 0V Reference | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Digital Input 9 | — | W67 | — | 0.5 | OEM-C85-5 | — | — | — |
| 19 | Digital Input 10 | — | W68 | — | 0.5 | OEM-C86-7 | — | — | — |
| 20 | Digital Input 11 | — | W69 | — | 0.5 | OEM-C86-10 | — | — | — |
| 21 | Digital Input 12 | — | W70 | — | 0.5 | OEM-C86-11 | — | — | — |
| 22 | Digital Input 13 | — | W71 | — | 0.5 | OEM-C86-6 | — | — | — |
| 23 | Digital Input 14 | — | W72 | — | 0.5 | OEM-C85-14 | — | — | — |
| 24 | Analog Input Channel 16 | — | W81 | — | 0.5 | OEM-C86-28 | — | — | — |
| 25 | Analog Sensor 0V Reference | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 26 | ECU Ground | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | Digital Input 1 | — | W59 | — | 0.5 | OEM-C86-12 | — | — | — |
| 28 | Digital Input 2 | — | W60 | — | 0.5 | OEM-C84-4 | — | — | — |
| 29 | Digital Input 3 | — | W61 | — | 0.5 | OEM-C84-9 | — | — | — |
| 30 | Digital Input 4 | — | W62 | — | 0.5 | OEM-C84-15 | — | — | — |
| 31 | Digital Input 5 | — | W63 | — | 0.5 | OEM-C84-3 | — | — | — |
| 32 | Digital Input 6 | — | W64 | — | 0.5 | OEM-C85-1 | — | — | — |
| 33 | Digital Input 7 | — | W65 | — | 0.5 | OEM-C85-10 | — | — | — |
| 34 | Digital Input 8 | — | W66 | — | 0.5 | OEM-C88-12 | — | — | — |
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 + | — | W22 | — | 0.5 | OEM-C84-5 | — | — | — |
| 5 | Crank Index Sensor - | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sync Sensor + | — | W24 | — | 0.5 | OEM-C84-10 | — | — | — |
| 7 | Sync Sensor - | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | CAN 1H | — | — | — | — | — | — | — | — |
| 9 | EFI Relay Output (Low Side 200mA) | — | W41 | — | 0.5 | OEM-C85-2 | — | — | — |
| 10 | CAN 2H | — | — | — | — | — | — | — | — |
| 11 | Knock 1 + | — | W26 | — | 0.5 | OEM-C88-5 | — | — | — |
| 12 | Knock 1 - | — | — | — | — | — | — | — | — |
| 13 | Shield (Crank/Cam/ Knock) | — | — | — | — | — | — | — | — |
| 14 | CAN 1L | — | — | — | — | — | — | — | — |
| 15 | Ignition Switch Input | — | W37 | — | 0.5 | OEM-C86-9 | — | — | — |
| 16 | CAN 2L | — | — | — | — | — | — | — | — |
| 17 | Knock 2 + | — | W27 | — | 0.5 | OEM-C88-4 | — | — | — |
| 18 | Knock 2 - | — | — | — | — | — | — | — | — |
| 19 | Analog Output (0.0 - 5.0V) | — | W82 | — | 0.5 | OEM-C85-11 | — | — | — |
| 20 | Auxiliary Output 9-12 14V Supply | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 21 | Sensor Supply Vref1: 5.0V | — | W21 | — | 0.5 | OEM-C84-1 | — | — | — |
| 22 | Sensor Supply Vref2: 5.0V | — | — | — | — | — | — | — | — |
| 23 | Ethernet Tx + | — | — | — | — | — | — | — | — |
| 24 | Ethernet Tx - | — | — | — | — | — | — | — | — |
| 25 | Ethernet Rx + | — | — | — | — | — | — | — | — |
| 26 | Ethernet Rx - | — | — | — | — | — | — | — | — |
OEM-C84
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor supply +5V (VCC) | — | W21 | — | 0.5 | KV12-D-21 | — | — | — |
| 10 | Cam position 1 (G1) | — | W24 | — | 0.5 | KV12-D-6 | — | — | — |
| 11 | Cam 1 return (G1-) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | TRAC throttle position (VTA2) | — | W55 | — | 0.5 | KV12-C-5 | — | — | — |
| 13 | O2 sensor (OX1) | — | W56 | — | 0.5 | KV12-C-6 | — | — | — |
| 14 | Intake air temperature (THA) | — | W57 | — | 0.5 | KV12-C-7 | — | — | — |
| 15 | OD direct-clutch speed sensor (NCO+) | — | W62 | — | 0.5 | KV12-C-30 | — | — | — |
| 16 | Cam position 2 (G2) | — | — | — | — | — | — | — | — |
| 17 | Cam 2 return (G2-) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | Coolant temperature (THW) | — | W40 | — | 0.5 | KV12-C-4 | — | — | — |
| 22 | Sensor ground (E2) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | OD direct-clutch speed sensor (NCO-) | — | W63 | — | 0.5 | KV12-C-31 | — | — | — |
| 4 | No.2 speed sensor (SP2-) | — | W60 | — | 0.5 | KV12-C-28 | — | — | — |
| 5 | Crank position (NE) | — | W22 | — | 0.5 | KV12-D-4 | — | — | — |
| 6 | Crank sensor return (NE-) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Throttle position (VTA1) | — | W39 | — | 0.5 | KV12-C-3 | — | — | — |
| 8 | Manifold pressure (PIM) | — | W38 | — | 0.5 | KV12-C-2 | — | — | — |
| 9 | No.2 speed sensor (SP2+) | — | W61 | — | 0.5 | KV12-C-29 | — | — | — |
OEM-C85
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Slave engine speed (NEO) | — | W64 | — | 0.5 | KV12-C-32 | — | — | — |
| 10 | Fuel pump diagnostic (DI) | — | W65 | — | 0.5 | KV12-C-33 | — | — | — |
| 11 | Slave TRAC throttle position (VTO2) | — | W82 | — | 0.5 | KV12-D-19 | — | — | — |
| 14 | ABS active (MT only) | — | W72 | — | 0.5 | KV12-C-23 | — | — | — |
| 16 | Power ground (E1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | EFI main relay control (M-REL) | — | W41 | — | 0.5 | KV12-D-9 | — | — | — |
| 3 | Check-engine lamp (W) | — | W50 | — | 0.5 | KV12-B-13 | — | — | — |
| 4 | Fuel pump control (FPC) | — | W51 | — | 0.5 | KV12-A-11 | — | — | — |
| 5 | Diagnostic test 1 (TE1) | — | W67 | — | 0.5 | KV12-C-18 | — | — | — |
| 6 | Timing retard (TR) | — | W73 | — | 0.5 | KV12-C-9 | — | — | — |
| 7 | Slave throttle position (VTO1) | — | — | — | — | — | — | — | — |
OEM-C86
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Diagnostic test terminal (TT) | — | W74 | — | 0.5 | KV12-C-10 | — | — | — |
| 10 | A/T 2nd-gear indicator (2) | — | W69 | — | 0.5 | KV12-C-20 | — | — | — |
| 11 | Diagnostic test 2 (TE2) | — | W70 | — | 0.5 | KV12-C-21 | — | — | — |
| 12 | No.1 speed sensor (SP1) | — | W59 | — | 0.5 | KV12-C-27 | — | — | — |
| 13 | Cat temperature sensor (CCO) | — | W58 | — | 0.5 | KV12-C-8 | — | — | — |
| 14 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 17 | A/T throttle position (L3) | — | W75 | — | 0.5 | KV12-C-11 | — | — | — |
| 18 | A/T throttle position (L2) | — | W76 | — | 0.5 | KV12-C-12 | — | — | — |
| 19 | A/T throttle position (L1) | — | W77 | — | 0.5 | KV12-C-13 | — | — | — |
| 2 | A/T low-gear indicator (L) | — | W78 | — | 0.5 | KV12-C-14 | — | — | — |
| 20 | A/C request (A/C) | — | W79 | — | 0.5 | KV12-C-15 | — | — | — |
| 22 | EFI main relay power (+B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 23 | EFI main relay power (+B1) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 25 | Stop light switch (STP) | — | W80 | — | 0.5 | KV12-C-16 | — | — | — |
| 28 | Electrical load sense (ELS) | — | W81 | — | 0.5 | KV12-C-24 | — | — | — |
| 3 | A/T power/normal mode (P) | — | — | — | — | — | — | — | — |
| 5 | A/C clutch relay (ACMG) | — | W42 | — | 0.5 | KV12-B-14 | — | — | — |
| 6 | A/T overdrive disable 2 (OD2) | — | W71 | — | 0.5 | KV12-C-22 | — | — | — |
| 7 | A/T overdrive disable 1 (OD1) | — | W68 | — | 0.5 | KV12-C-19 | — | — | — |
| 8 | Cat temp warning light (EGW) | — | W52 | — | 0.5 | KV12-B-4 | — | — | — |
| 9 | Ignition switch (IGSW) | — | W37 | — | 0.5 | KV12-D-15 | — | — | — |
OEM-C88
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Injector 1 (#10, cyl 1&4) | — | W34 | — | 0.5 | KV12-B-1 | — | — | — |
| 11 | A/T shift solenoid 1 (S1) | — | W44 | — | 0.5 | KV12-B-15 | — | — | — |
| 12 | Igniter feedback (IGF) | — | W66 | — | 0.5 | KV12-C-34 | — | — | — |
| 13 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 14 | Neutral/park switch (NSW) | — | — | — | — | — | — | — | — |
| 15 | Ignition 3 (IGT3) | — | W30 | — | 0.5 | KV12-B-28 | — | — | — |
| 16 | Ignition 2 (IGT2) | — | W29 | — | 0.5 | KV12-B-27 | — | — | — |
| 17 | A/T shift solenoid 2 (S2) | — | W46 | — | 0.5 | KV12-B-17 | — | — | — |
| 19 | Voltage feedback (VF) | — | — | — | — | — | — | — | — |
| 20 | ISC stepper coil 4 (ISCV4) | — | W49 | — | 0.5 | KV12-B-12 | — | — | — |
| 21 | ISC stepper coil 3 (ISCV3) | — | W48 | — | 0.5 | KV12-B-11 | — | — | — |
| 22 | ISC stepper coil 2 (ISCV2) | — | W47 | — | 0.5 | KV12-B-10 | — | — | — |
| 23 | ISC stepper coil 1 (ISCV1) | — | W45 | — | 0.5 | KV12-B-16 | — | — | — |
| 24 | Ignition 1 (IGT1) | — | W28 | — | 0.5 | KV12-B-26 | — | — | — |
| 26 | Ignition 4 (IGT4) | — | W31 | — | 0.5 | KV12-B-29 | — | — | — |
| 27 | A/T lock-up solenoid (S3) | — | W53 | — | 0.5 | KV12-B-5 | — | — | — |
| 28 | Power ground (E11) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 29 | Ignition 6 (IGT6) | — | W33 | — | 0.5 | KV12-B-31 | — | — | — |
| 3 | O2 heater (HT) | — | W43 | — | 0.5 | KV12-A-10 | — | — | — |
| 30 | Ignition 5 (IGT5) | — | W32 | — | 0.5 | KV12-B-30 | — | — | — |
| 31 | TRAC throttle idle switch (IDL2) | — | — | — | — | — | — | — | — |
| 32 | TPS idle switch (IDL1) | — | — | — | — | — | — | — | — |
| 33 | Power ground (E02) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 34 | Power ground (E01) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Knock sensor 2 (KNK2, rear) | — | W27 | — | 0.5 | KV12-D-17 | — | — | — |
| 5 | Knock sensor 1 (KNK1, front) | — | W26 | — | 0.5 | KV12-D-11 | — | — | — |
| 7 | EVAP purge VSV | — | W54 | — | 0.5 | KV12-B-6 | — | — | — |
| 8 | Injector 3 (#30, cyl 2&6) | — | W36 | — | 0.5 | KV12-B-3 | — | — | — |
| 9 | Injector 2 (#20, cyl 3&5) | — | W35 | — | 0.5 | KV12-B-2 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-C84-11 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-C84-17 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-C84-22 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-C84-6 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | KV12-C-17 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | KV12-C-25 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | KV12-D-5 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | KV12-D-7 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-C86-22 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-C86-23 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | KV12-D-1 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | KV12-D-2 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | KV12-D-20 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-C85-16 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-C88-28 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-C88-33 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-C88-34 | — | — | — |
| 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 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-C84-1 | Sensor supply +5V (VCC) | vref | KV12-D-21 | Sensor Supply Vref1: 5.0V | vref | single_source | |
| OEM-C84-10 | Cam position 1 (G1) | trigger_in | KV12-D-6 | Sync Sensor + | trigger_in | single_source | |
| OEM-C84-11 | Cam 1 return (G1-) | 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 | single_source | |
| OEM-C84-12 | TRAC throttle position (VTA2) | analog_in | KV12-C-5 | Analog Input Channel 4 | analog_in | single_source | |
| OEM-C84-13 | O2 sensor (OX1) | lambda_nb_in | KV12-C-6 | Analog Input Channel 5 | analog_in | single_source | |
| OEM-C84-14 | Intake air temperature (THA) | temp_in | KV12-C-7 | Analog Input Channel 6 | analog_in | single_source | |
| OEM-C84-15 | OD direct-clutch speed sensor (NCO+) | digital_in | KV12-C-30 | Digital Input 4 | digital_in | single_source | |
| OEM-C84-16 | Cam position 2 (G2) | trigger_in | — | — | — | single_source | |
| OEM-C84-17 | Cam 2 return (G2-) | 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 | single_source | |
| OEM-C84-20 | Coolant temperature (THW) | temp_in | KV12-C-4 | Analog Input Channel 3 | analog_in | single_source | |
| OEM-C84-22 | Sensor ground (E2) | 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 | single_source | |
| OEM-C84-3 | OD direct-clutch speed sensor (NCO-) | digital_in | KV12-C-31 | Digital Input 5 | digital_in | single_source | |
| OEM-C84-4 | No.2 speed sensor (SP2-) | digital_in | KV12-C-28 | Digital Input 2 | digital_in | single_source | |
| OEM-C84-5 | Crank position (NE) | trigger_in | KV12-D-4 | Crank Index Sensor + | trigger_in | single_source | |
| OEM-C84-6 | Crank sensor return (NE-) | 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 | single_source | |
| OEM-C84-7 | Throttle position (VTA1) | analog_in | KV12-C-3 | Analog Input Channel 2 | analog_in | single_source | |
| OEM-C84-8 | Manifold pressure (PIM) | analog_in | KV12-C-2 | Analog Input Channel 1 | analog_in | single_source | |
| OEM-C84-9 | No.2 speed sensor (SP2+) | digital_in | KV12-C-29 | Digital Input 3 | digital_in | single_source | |
| OEM-C85-1 | Slave engine speed (NEO) | digital_in | KV12-C-32 | Digital Input 6 | digital_in | single_source | |
| OEM-C85-10 | Fuel pump diagnostic (DI) | digital_in | KV12-C-33 | Digital Input 7 | digital_in | single_source | |
| OEM-C85-11 | Slave TRAC throttle position (VTO2) | analog_out | KV12-D-19 | Analog Output (0.0 - 5.0V) | analog_out | single_source | |
| OEM-C85-14 | ABS active (MT only) | digital_in | KV12-C-23 | Digital Input 14 | digital_in | single_source | |
| OEM-C85-16 | Power ground (E1) | 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 | single_source | |
| OEM-C85-2 | EFI main relay control (M-REL) | low_side_out | KV12-D-9 | EFI Relay Output (Low Side 200mA) | low_side_out | single_source | |
| OEM-C85-3 | Check-engine lamp (W) | low_side_out | KV12-B-13 | Auxiliary Output 4 | low_side_out | single_source | |
| OEM-C85-4 | Fuel pump control (FPC) | low_side_out | KV12-A-11 | Lambda 2 Heater - | low_side_out | single_source | |
| OEM-C85-5 | Diagnostic test 1 (TE1) | digital_in | KV12-C-18 | Digital Input 9 | digital_in | single_source | |
| OEM-C85-6 | Timing retard (TR) | digital_in | KV12-C-9 | Analog Input Channel 8 | analog_in | single_source | |
| OEM-C85-7 | Slave throttle position (VTO1) | analog_out | — | — | — | single_source | |
| OEM-C86-1 | Diagnostic test terminal (TT) | digital_in | KV12-C-10 | Analog Input Channel 9 | analog_in | single_source | |
| OEM-C86-10 | A/T 2nd-gear indicator (2) | digital_in | KV12-C-20 | Digital Input 11 | digital_in | single_source | |
| OEM-C86-11 | Diagnostic test 2 (TE2) | digital_in | KV12-C-21 | Digital Input 12 | digital_in | single_source | |
| OEM-C86-12 | No.1 speed sensor (SP1) | digital_in | KV12-C-27 | Digital Input 1 | digital_in | single_source | |
| OEM-C86-13 | Cat temperature sensor (CCO) | temp_in | KV12-C-8 | Analog Input Channel 7 | analog_in | single_source | |
| OEM-C86-14 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-C86-17 | A/T throttle position (L3) | digital_in | KV12-C-11 | Analog Input Channel 10 | analog_in | single_source | |
| OEM-C86-18 | A/T throttle position (L2) | digital_in | KV12-C-12 | Analog Input Channel 11 | analog_in | single_source | |
| OEM-C86-19 | A/T throttle position (L1) | digital_in | KV12-C-13 | Analog Input Channel 12 | analog_in | single_source | |
| OEM-C86-2 | A/T low-gear indicator (L) | digital_in | KV12-C-14 | Analog Input Channel 13 | analog_in | single_source | |
| OEM-C86-20 | A/C request (A/C) | digital_in | KV12-C-15 | Analog Input Channel 14 | analog_in | single_source | |
| OEM-C86-22 | EFI main relay power (+B) | 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 | single_source | |
| OEM-C86-23 | EFI main relay power (+B1) | 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 | single_source | |
| OEM-C86-25 | Stop light switch (STP) | digital_in | KV12-C-16 | Analog Input Channel 15 | analog_in | single_source | |
| OEM-C86-28 | Electrical load sense (ELS) | digital_in | KV12-C-24 | Analog Input Channel 16 | analog_in | single_source | |
| OEM-C86-3 | A/T power/normal mode (P) | digital_in | — | — | — | single_source | |
| OEM-C86-5 | A/C clutch relay (ACMG) | low_side_out | KV12-B-14 | Auxiliary Output 5 | low_side_out | single_source | |
| OEM-C86-6 | A/T overdrive disable 2 (OD2) | digital_in | KV12-C-22 | Digital Input 13 | digital_in | single_source | |
| OEM-C86-7 | A/T overdrive disable 1 (OD1) | digital_in | KV12-C-19 | Digital Input 10 | digital_in | single_source | |
| OEM-C86-8 | Cat temp warning light (EGW) | low_side_out | KV12-B-4 | Injection Channel 4 | injector_out | single_source | |
| OEM-C86-9 | Ignition switch (IGSW) | digital_in | KV12-D-15 | Ignition Switch Input | digital_in | single_source | |
| OEM-C88-10 | Injector 1 (#10, cyl 1&4) | injector_out | KV12-B-1 | Injection Channel 1 | injector_out | single_source | |
| OEM-C88-11 | A/T shift solenoid 1 (S1) | low_side_out | KV12-B-15 | Auxiliary Output 6 | low_side_out | single_source | |
| OEM-C88-12 | Igniter feedback (IGF) | digital_in | KV12-C-34 | Digital Input 8 | digital_in | single_source | |
| OEM-C88-13 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-C88-14 | Neutral/park switch (NSW) | digital_in | — | — | — | single_source | |
| OEM-C88-15 | Ignition 3 (IGT3) | ignition_out | KV12-B-28 | Ignition Channel 3 | ignition_out | single_source | |
| OEM-C88-16 | Ignition 2 (IGT2) | ignition_out | KV12-B-27 | Ignition Channel 2 | ignition_out | single_source | |
| OEM-C88-17 | A/T shift solenoid 2 (S2) | low_side_out | KV12-B-17 | Auxiliary Output 8 | low_side_out | single_source | |
| OEM-C88-19 | Voltage feedback (VF) | analog_out | — | — | — | single_source | |
| OEM-C88-20 | ISC stepper coil 4 (ISCV4) | low_side_out | KV12-B-12 | Auxiliary Output 3 | low_side_out | single_source | |
| OEM-C88-21 | ISC stepper coil 3 (ISCV3) | low_side_out | KV12-B-11 | Auxiliary Output 2 | low_side_out | single_source | |
| OEM-C88-22 | ISC stepper coil 2 (ISCV2) | low_side_out | KV12-B-10 | Auxiliary Output 1 | low_side_out | single_source | |
| OEM-C88-23 | ISC stepper coil 1 (ISCV1) | low_side_out | KV12-B-16 | Auxiliary Output 7 | low_side_out | single_source | |
| OEM-C88-24 | Ignition 1 (IGT1) | ignition_out | KV12-B-26 | Ignition Channel 1 | ignition_out | single_source | |
| OEM-C88-26 | Ignition 4 (IGT4) | ignition_out | KV12-B-29 | Ignition Channel 4 | ignition_out | single_source | |
| OEM-C88-27 | A/T lock-up solenoid (S3) | low_side_out | KV12-B-5 | Injection Channel 5 | injector_out | single_source | |
| OEM-C88-28 | Power ground (E11) | 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 | single_source | |
| OEM-C88-29 | Ignition 6 (IGT6) | ignition_out | KV12-B-31 | Ignition Channel 6 | ignition_out | single_source | |
| OEM-C88-3 | O2 heater (HT) | low_side_out | KV12-A-10 | Lambda 1 Heater - | low_side_out | single_source | |
| OEM-C88-30 | Ignition 5 (IGT5) | ignition_out | KV12-B-30 | Ignition Channel 5 | ignition_out | single_source | |
| OEM-C88-31 | TRAC throttle idle switch (IDL2) | digital_in | — | — | — | single_source | |
| OEM-C88-32 | TPS idle switch (IDL1) | digital_in | — | — | — | single_source | |
| OEM-C88-33 | Power ground (E02) | 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 | single_source | |
| OEM-C88-34 | Power ground (E01) | 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 | single_source | |
| OEM-C88-4 | Knock sensor 2 (KNK2, rear) | knock_in | KV12-D-17 | Knock 2 + | knock_in | single_source | |
| OEM-C88-5 | Knock sensor 1 (KNK1, front) | knock_in | KV12-D-11 | Knock 1 + | knock_in | single_source | |
| OEM-C88-7 | EVAP purge VSV | low_side_out | KV12-B-6 | Injection Channel 6 | injector_out | single_source | |
| OEM-C88-8 | Injector 3 (#30, cyl 2&6) | injector_out | KV12-B-3 | Injection Channel 3 | injector_out | single_source | |
| OEM-C88-9 | Injector 2 (#20, cyl 3&5) | injector_out | KV12-B-2 | Injection Channel 2 | injector_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-C86-22 | SP-14V-1 | 0.85 | no route | EFI main relay power (+B) | — | |
| W2 | OEM-C86-23 | SP-14V-1 | 0.85 | no route | EFI main relay power (+B1) | — | |
| 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-C85-16 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W7 | OEM-C88-28 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W8 | OEM-C88-33 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W9 | OEM-C88-34 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| 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-C84-11 | SP-0V-1 | 0.5 | no route | Cam 1 return (G1-) | — | |
| W16 | OEM-C84-17 | SP-0V-1 | 0.5 | no route | Cam 2 return (G2-) | — | |
| W17 | OEM-C84-22 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W18 | OEM-C84-6 | SP-0V-1 | 0.5 | no route | Crank sensor return (NE-) | — | |
| 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-C84-1 | KV12-D-21 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W22 | OEM-C84-5 | KV12-D-4 | 0.5 | no route | Crank position (NE) | — | |
| W23 | SP-0V-1 | KV12-D-5 | 0.5 | no route | Crank Index Sensor - | — | |
| W24 | OEM-C84-10 | KV12-D-6 | 0.5 | no route | Cam position 1 (G1) | — | |
| W25 | SP-0V-1 | KV12-D-7 | 0.5 | no route | Sync Sensor - | — | |
| W26 | OEM-C88-5 | KV12-D-11 | 0.5 | no route | Knock sensor 1 (KNK1, front) | — | |
| W27 | OEM-C88-4 | KV12-D-17 | 0.5 | no route | Knock sensor 2 (KNK2, rear) | — | |
| W28 | OEM-C88-24 | KV12-B-26 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W29 | OEM-C88-16 | KV12-B-27 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W30 | OEM-C88-15 | KV12-B-28 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W31 | OEM-C88-26 | KV12-B-29 | 0.5 | no route | Ignition 4 (IGT4) | — | |
| W32 | OEM-C88-30 | KV12-B-30 | 0.5 | no route | Ignition 5 (IGT5) | — | |
| W33 | OEM-C88-29 | KV12-B-31 | 0.5 | no route | Ignition 6 (IGT6) | — | |
| W34 | OEM-C88-10 | KV12-B-1 | 0.5 | no route | Injector 1 (#10, cyl 1&4) | — | |
| W35 | OEM-C88-9 | KV12-B-2 | 0.5 | no route | Injector 2 (#20, cyl 3&5) | — | |
| W36 | OEM-C88-8 | KV12-B-3 | 0.5 | no route | Injector 3 (#30, cyl 2&6) | — | |
| W37 | OEM-C86-9 | KV12-D-15 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W38 | OEM-C84-8 | KV12-C-2 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W39 | OEM-C84-7 | KV12-C-3 | 0.5 | no route | Throttle position (VTA1) | — | |
| W40 | OEM-C84-20 | KV12-C-4 | 0.5 | no route | Coolant temperature (THW) | — | |
| W41 | OEM-C85-2 | KV12-D-9 | 0.5 | no route | EFI main relay control (M-REL) | — | |
| W42 | OEM-C86-5 | KV12-B-14 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W43 | OEM-C88-3 | KV12-A-10 | 0.5 | no route | O2 heater (HT) | — | |
| W44 | OEM-C88-11 | KV12-B-15 | 0.5 | no route | A/T shift solenoid 1 (S1) | — | |
| W45 | OEM-C88-23 | KV12-B-16 | 0.5 | no route | ISC stepper coil 1 (ISCV1) | — | |
| W46 | OEM-C88-17 | KV12-B-17 | 0.5 | no route | A/T shift solenoid 2 (S2) | — | |
| W47 | OEM-C88-22 | KV12-B-10 | 0.5 | no route | ISC stepper coil 2 (ISCV2) | — | |
| W48 | OEM-C88-21 | KV12-B-11 | 0.5 | no route | ISC stepper coil 3 (ISCV3) | — | |
| W49 | OEM-C88-20 | KV12-B-12 | 0.5 | no route | ISC stepper coil 4 (ISCV4) | — | |
| W50 | OEM-C85-3 | KV12-B-13 | 0.5 | no route | Check-engine lamp (W) | — | |
| W51 | OEM-C85-4 | KV12-A-11 | 0.5 | no route | Fuel pump control (FPC) | — | |
| W52 | OEM-C86-8 | KV12-B-4 | 0.5 | no route | Cat temp warning light (EGW) | — | |
| W53 | OEM-C88-27 | KV12-B-5 | 0.5 | no route | A/T lock-up solenoid (S3) | — | |
| W54 | OEM-C88-7 | KV12-B-6 | 0.5 | no route | EVAP purge VSV | — | |
| W55 | OEM-C84-12 | KV12-C-5 | 0.5 | no route | TRAC throttle position (VTA2) | — | |
| W56 | OEM-C84-13 | KV12-C-6 | 0.5 | no route | O2 sensor (OX1) | — | |
| W57 | OEM-C84-14 | KV12-C-7 | 0.5 | no route | Intake air temperature (THA) | — | |
| W58 | OEM-C86-13 | KV12-C-8 | 0.5 | no route | Cat temperature sensor (CCO) | — | |
| W59 | OEM-C86-12 | KV12-C-27 | 0.5 | no route | No.1 speed sensor (SP1) | — | |
| W60 | OEM-C84-4 | KV12-C-28 | 0.5 | no route | No.2 speed sensor (SP2-) | — | |
| W61 | OEM-C84-9 | KV12-C-29 | 0.5 | no route | No.2 speed sensor (SP2+) | — | |
| W62 | OEM-C84-15 | KV12-C-30 | 0.5 | no route | OD direct-clutch speed sensor (NCO+) | — | |
| W63 | OEM-C84-3 | KV12-C-31 | 0.5 | no route | OD direct-clutch speed sensor (NCO-) | — | |
| W64 | OEM-C85-1 | KV12-C-32 | 0.5 | no route | Slave engine speed (NEO) | — | |
| W65 | OEM-C85-10 | KV12-C-33 | 0.5 | no route | Fuel pump diagnostic (DI) | — | |
| W66 | OEM-C88-12 | KV12-C-34 | 0.5 | no route | Igniter feedback (IGF) | — | |
| W67 | OEM-C85-5 | KV12-C-18 | 0.5 | no route | Diagnostic test 1 (TE1) | — | |
| W68 | OEM-C86-7 | KV12-C-19 | 0.5 | no route | A/T overdrive disable 1 (OD1) | — | |
| W69 | OEM-C86-10 | KV12-C-20 | 0.5 | no route | A/T 2nd-gear indicator (2) | — | |
| W70 | OEM-C86-11 | KV12-C-21 | 0.5 | no route | Diagnostic test 2 (TE2) | — | |
| W71 | OEM-C86-6 | KV12-C-22 | 0.5 | no route | A/T overdrive disable 2 (OD2) | — | |
| W72 | OEM-C85-14 | KV12-C-23 | 0.5 | no route | ABS active (MT only) | — | |
| W73 | OEM-C85-6 | KV12-C-9 | 0.5 | no route | Timing retard (TR) | — | |
| W74 | OEM-C86-1 | KV12-C-10 | 0.5 | no route | Diagnostic test terminal (TT) | — | |
| W75 | OEM-C86-17 | KV12-C-11 | 0.5 | no route | A/T throttle position (L3) | — | |
| W76 | OEM-C86-18 | KV12-C-12 | 0.5 | no route | A/T throttle position (L2) | — | |
| W77 | OEM-C86-19 | KV12-C-13 | 0.5 | no route | A/T throttle position (L1) | — | |
| W78 | OEM-C86-2 | KV12-C-14 | 0.5 | no route | A/T low-gear indicator (L) | — | |
| W79 | OEM-C86-20 | KV12-C-15 | 0.5 | no route | A/C request (A/C) | — | |
| W80 | OEM-C86-25 | KV12-C-16 | 0.5 | no route | Stop light switch (STP) | — | |
| W81 | OEM-C86-28 | KV12-C-24 | 0.5 | no route | Electrical load sense (ELS) | — | |
| W82 | OEM-C85-11 | KV12-D-19 | 0.5 | no route | Slave TRAC throttle position (VTO2) | — |
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 |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 72.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (20)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | INJECTOR_BALLAST | KV12 | The 1JZ-GTE injectors (1JZ-GTE fuel injector) are low-impedance, but KV12 drives saturated (high-Z) injectors only. Add a ballast resistor pack in series with each injector, or use an ECU with low-Z / peak-and-hold injector drivers. |
| error | REQUIRED_UNMAPPED | OEM-C84-16 | Required OEM function "Cam position 2 (G2)" (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 | NET_FAMILY | OEM-C85-6 ↔ KV12-C-9 | OEM-C85-6 "Timing retard (TR)" [digital_in] is wired to KV12-C-9 "Analog Input Channel 8" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-1 ↔ KV12-C-10 | OEM-C86-1 "Diagnostic test terminal (TT)" [digital_in] is wired to KV12-C-10 "Analog Input Channel 9" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-17 ↔ KV12-C-11 | OEM-C86-17 "A/T throttle position (L3)" [digital_in] is wired to KV12-C-11 "Analog Input Channel 10" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-18 ↔ KV12-C-12 | OEM-C86-18 "A/T throttle position (L2)" [digital_in] is wired to KV12-C-12 "Analog Input Channel 11" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-19 ↔ KV12-C-13 | OEM-C86-19 "A/T throttle position (L1)" [digital_in] is wired to KV12-C-13 "Analog Input Channel 12" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-2 ↔ KV12-C-14 | OEM-C86-2 "A/T low-gear indicator (L)" [digital_in] is wired to KV12-C-14 "Analog Input Channel 13" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-20 ↔ KV12-C-15 | OEM-C86-20 "A/C request (A/C)" [digital_in] is wired to KV12-C-15 "Analog Input Channel 14" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-25 ↔ KV12-C-16 | OEM-C86-25 "Stop light switch (STP)" [digital_in] is wired to KV12-C-16 "Analog Input Channel 15" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-C86-28 ↔ KV12-C-24 | OEM-C86-28 "Electrical load sense (ELS)" [digital_in] is wired to KV12-C-24 "Analog Input Channel 16" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| info | NET_FAMILY | KV12-C-25 ↔ KV12-D-5 | KV12-C-25 "Analog Sensor 0V Reference" [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 | NET_FAMILY | OEM-C84-14 ↔ KV12-C-7 | OEM-C84-14 "Intake air temperature (THA)" [temp_in] is wired to KV12-C-7 "Analog Input Channel 6" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C84-20 ↔ KV12-C-4 | OEM-C84-20 "Coolant temperature (THW)" [temp_in] is wired to KV12-C-4 "Analog Input Channel 3" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C86-13 ↔ KV12-C-8 | OEM-C86-13 "Cat temperature sensor (CCO)" [temp_in] is wired to KV12-C-8 "Analog Input Channel 7" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C86-8 ↔ KV12-B-4 | OEM-C86-8 "Cat temp warning light (EGW)" [low_side_out] is wired to KV12-B-4 "Injection Channel 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C88-27 ↔ KV12-B-5 | OEM-C88-27 "A/T lock-up solenoid (S3)" [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-C88-7 ↔ KV12-B-6 | OEM-C88-7 "EVAP purge VSV" [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 | UNMAPPED | OEM | 7 optional OEM pins are not mapped: OEM-C85-7 Slave throttle position (VTO1); OEM-C86-3 A/T power/normal mode (P); OEM-C88-13 Starter signal (STA); OEM-C88-14 Neutral/park switch (NSW); OEM-C88-19 Voltage feedback (VF); OEM-C88-31 TRAC throttle idle switch (IDL2); OEM-C88-32 TPS idle switch (IDL1) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-C86-14 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-C84 16: Cam position 2 (G2): no free cam_vr/cam_hall/frequency_in input on Emtron KV12 Not wired: - OEM-C86 14: Battery constant (BATT): 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-C86 3: A/T power/normal mode (P): no free switch_in/frequency_in/analog_0_5 on Emtron KV12 - OEM-C88 13: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Emtron KV12 - OEM-C88 14: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on Emtron KV12 - OEM-C88 31: TRAC throttle idle switch (IDL2): no free switch_in/frequency_in/analog_0_5 on Emtron KV12 - OEM-C88 32: TPS idle switch (IDL1): no free switch_in/frequency_in/analog_0_5 on Emtron KV12 - OEM-C85 7: Slave throttle position (VTO1): no free analog_out on Emtron KV12 - OEM-C88 19: Voltage feedback (VF): no free analog_out on Emtron KV12
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 | wilbo666: 1JZ-GTE pinout (JZZ30 Soarer page, shared 1JZ-GTE engine/ECU) | http://wilbo666.pbworks.com/w/page/47216384/1JZ-GTE%20JZZ30%20Soarer | — | — | — |