Toyota Mark II JZX90 1992-96 (1JZ-GTE, non-VVT) → Haltech Nexus S3 HT-213000 (auto)
Toyota Mark II JZX90 1992-96 (1JZ-GTE, non-VVT) — Haltech — Nexus S3
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-12
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 62 wires · 9 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-C86-22 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C86-23 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | NEXUSS3-A-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | NEXUSS3-A-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-C85-16 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-C88-28 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-C88-33 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-C88-34 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-C84-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-C84-17 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-C84-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-C84-6 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-C84-1 | NEXUSS3-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C84-5 | NEXUSS3-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-C84-10 | NEXUSS3-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-C84-16 | NEXUSS3-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C88-5 | NEXUSS3-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-C88-4 | NEXUSS3-C-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-C88-24 | NEXUSS3-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-C88-16 | NEXUSS3-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-C88-15 | NEXUSS3-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-C88-26 | NEXUSS3-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-C88-30 | NEXUSS3-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-C88-29 | NEXUSS3-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-C88-10 | NEXUSS3-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-C88-9 | NEXUSS3-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-C88-8 | NEXUSS3-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-C86-9 | NEXUSS3-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-C84-8 | NEXUSS3-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-C84-7 | NEXUSS3-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-C84-20 | NEXUSS3-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-C85-2 | NEXUSS3-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-C86-5 | NEXUSS3-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-C88-3 | NEXUSS3-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-C88-11 | NEXUSS3-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-C88-23 | NEXUSS3-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-C88-17 | NEXUSS3-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-C88-22 | NEXUSS3-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-C88-21 | NEXUSS3-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-C88-20 | NEXUSS3-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-C85-3 | NEXUSS3-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-C85-4 | NEXUSS3-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-C86-8 | NEXUSS3-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-C88-27 | NEXUSS3-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-C84-12 | NEXUSS3-C-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-C84-13 | NEXUSS3-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-C84-14 | NEXUSS3-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-C86-13 | NEXUSS3-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-C86-12 | NEXUSS3-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-C84-4 | NEXUSS3-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-C84-9 | NEXUSS3-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-C84-15 | NEXUSS3-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-C84-3 | NEXUSS3-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-C85-5 | NEXUSS3-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-C86-7 | NEXUSS3-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-C86-10 | NEXUSS3-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-C86-11 | NEXUSS3-C-28 | 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 | NEXUSS3-C-25 | NEXUSS3-C-2 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | NEXUSS3-A-10 | NEXUSS3-A-18 | open (OL) | power ground must not touch +12 V supply | |
| 3 | NEXUSS3-A-10 | NEXUSS3-C-25 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | NEXUSS3-C-2 | NEXUSS3-A-18 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | NEXUSS3-C-25 | NEXUSS3-A-18 | 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
NEXUSS3-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W30 | — | 0.5 | OEM-C88-10 | — | — | — |
| 10 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | DPO 2 | — | W40 | — | 0.5 | OEM-C88-11 | — | — | — |
| 13 | Ignition switch input | — | W33 | — | 0.5 | OEM-C86-9 | — | — | — |
| 14 | DPO 3 | — | W41 | — | 0.5 | OEM-C88-23 | — | — | — |
| 15 | DPO 4 | — | W42 | — | 0.5 | OEM-C88-17 | — | — | — |
| 16 | DPO 5 | — | W43 | — | 0.5 | OEM-C88-22 | — | — | — |
| 17 | DPO 6 | — | W44 | — | 0.5 | OEM-C88-21 | — | — | — |
| 18 | +12V switched input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 19 | HBO 1 | — | — | — | — | — | — | — | — |
| 2 | Injector 2 | — | W31 | — | 0.5 | OEM-C88-9 | — | — | — |
| 20 | HBO 2 | — | — | — | — | — | — | — | — |
| 21 | HBO 3 | — | — | — | — | — | — | — | — |
| 22 | HBO 4 | — | — | — | — | — | — | — | — |
| 23 | CAN 1 High | — | — | — | — | — | — | — | — |
| 24 | CAN 1 Low | — | — | — | — | — | — | — | — |
| 25 | +12V switched input | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | ECR output | — | W37 | — | 0.5 | OEM-C85-2 | — | — | — |
| 27 | Ignition 1 | — | W24 | — | 0.5 | OEM-C88-24 | — | — | — |
| 28 | Ignition 2 | — | W25 | — | 0.5 | OEM-C88-16 | — | — | — |
| 29 | Ignition 3 | — | W26 | — | 0.5 | OEM-C88-15 | — | — | — |
| 3 | Injector 3 | — | W32 | — | 0.5 | OEM-C88-8 | — | — | — |
| 30 | Ignition 4 | — | W27 | — | 0.5 | OEM-C88-26 | — | — | — |
| 31 | Ignition 5 | — | W28 | — | 0.5 | OEM-C88-30 | — | — | — |
| 32 | Ignition 6 | — | W29 | — | 0.5 | OEM-C88-29 | — | — | — |
| 33 | Ignition 7 | — | — | — | — | — | — | — | — |
| 34 | Ignition 8 | — | — | — | — | — | — | — | — |
| 4 | Injector 4 | — | W45 | — | 0.5 | OEM-C88-20 | — | — | — |
| 5 | Injector 5 | — | W46 | — | 0.5 | OEM-C85-3 | — | — | — |
| 6 | Injector 6 | — | W47 | — | 0.5 | OEM-C85-4 | — | — | — |
| 7 | Injector 7 | — | W48 | — | 0.5 | OEM-C86-8 | — | — | — |
| 8 | Injector 8 | — | W49 | — | 0.5 | OEM-C88-27 | — | — | — |
| 9 | DPO 1 | — | W38 | — | 0.5 | OEM-C86-5 | — | — | — |
NEXUSS3-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Trigger + | — | W17 | — | 0.5 | OEM-C84-5 | — | — | — |
| 10 | AVI 1 | — | W34 | — | 0.5 | OEM-C84-8 | — | — | — |
| 11 | AVI 2 | — | W35 | — | 0.5 | OEM-C84-7 | — | — | — |
| 12 | AVI 3 | — | W36 | — | 0.5 | OEM-C84-20 | — | — | — |
| 13 | AVI 4 | — | W50 | — | 0.5 | OEM-C84-12 | — | — | — |
| 14 | AVI 5 | — | W51 | — | 0.5 | OEM-C84-13 | — | — | — |
| 15 | AVI 6 | — | W52 | — | 0.5 | OEM-C84-14 | — | — | — |
| 16 | AVI 7 | — | W53 | — | 0.5 | OEM-C86-13 | — | — | — |
| 17 | AVI 8 | — | W59 | — | 0.5 | OEM-C85-5 | — | — | — |
| 18 | AVI 9 | — | W60 | — | 0.5 | OEM-C86-7 | — | — | — |
| 19 | SPI 5 | — | W57 | — | 0.5 | OEM-C84-15 | — | — | — |
| 2 | Trigger - | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | SPI 6 | — | W58 | — | 0.5 | OEM-C84-3 | — | — | — |
| 21 | CAN 2 High | — | — | — | — | — | — | — | — |
| 22 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 23 | Knock 1 | — | W22 | — | 0.5 | OEM-C88-5 | — | — | — |
| 24 | Knock 2 | — | W23 | — | 0.5 | OEM-C88-4 | — | — | — |
| 25 | +5V | — | W16 | — | 0.5 | OEM-C84-1 | — | — | — |
| 26 | Signal ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | AVI 10 | — | W61 | — | 0.5 | OEM-C86-10 | — | — | — |
| 28 | AVI 11 | — | W62 | — | 0.5 | OEM-C86-11 | — | — | — |
| 29 | WBI 1 Heater + | — | — | — | — | — | — | — | — |
| 3 | Home + | — | W19 | — | 0.5 | OEM-C84-10 | — | — | — |
| 30 | WBI 1 Input | — | — | — | — | — | — | — | — |
| 31 | WBI 1 Pump | — | — | — | — | — | — | — | — |
| 32 | WBI 1 Nernst | — | — | — | — | — | — | — | — |
| 33 | WBI 1 Heater - | — | W39 | — | 0.5 | OEM-C88-3 | — | — | — |
| 34 | WBI 1 Cal | — | — | — | — | — | — | — | — |
| 4 | Home - | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | SPI 1 | — | W21 | — | 0.5 | OEM-C84-16 | — | — | — |
| 6 | SPI 2 | — | W54 | — | 0.5 | OEM-C86-12 | — | — | — |
| 7 | SPI 3 | — | W55 | — | 0.5 | OEM-C84-4 | — | — | — |
| 8 | SPI 4 | — | W56 | — | 0.5 | OEM-C84-9 | — | — | — |
| 9 | +8V | — | — | — | — | — | — | — | — |
OEM-C84
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor supply +5V (VCC) | — | W16 | — | 0.5 | NEXUSS3-C-25 | — | — | — |
| 10 | Cam position 1 (G1) | — | W19 | — | 0.5 | NEXUSS3-C-3 | — | — | — |
| 11 | Cam 1 return (G1-) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | TRAC throttle position (VTA2) | — | W50 | — | 0.5 | NEXUSS3-C-13 | — | — | — |
| 13 | O2 sensor (OX1) | — | W51 | — | 0.5 | NEXUSS3-C-14 | — | — | — |
| 14 | Intake air temperature (THA) | — | W52 | — | 0.5 | NEXUSS3-C-15 | — | — | — |
| 15 | OD direct-clutch speed sensor (NCO+) | — | W57 | — | 0.5 | NEXUSS3-C-19 | — | — | — |
| 16 | Cam position 2 (G2) | — | W21 | — | 0.5 | NEXUSS3-C-5 | — | — | — |
| 17 | Cam 2 return (G2-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | Coolant temperature (THW) | — | W36 | — | 0.5 | NEXUSS3-C-12 | — | — | — |
| 22 | Sensor ground (E2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | OD direct-clutch speed sensor (NCO-) | — | W58 | — | 0.5 | NEXUSS3-C-20 | — | — | — |
| 4 | No.2 speed sensor (SP2-) | — | W55 | — | 0.5 | NEXUSS3-C-7 | — | — | — |
| 5 | Crank position (NE) | — | W17 | — | 0.5 | NEXUSS3-C-1 | — | — | — |
| 6 | Crank sensor return (NE-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Throttle position (VTA1) | — | W35 | — | 0.5 | NEXUSS3-C-11 | — | — | — |
| 8 | Manifold pressure (PIM) | — | W34 | — | 0.5 | NEXUSS3-C-10 | — | — | — |
| 9 | No.2 speed sensor (SP2+) | — | W56 | — | 0.5 | NEXUSS3-C-8 | — | — | — |
OEM-C85
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Slave engine speed (NEO) | — | — | — | — | — | — | — | — |
| 10 | Fuel pump diagnostic (DI) | — | — | — | — | — | — | — | — |
| 11 | Slave TRAC throttle position (VTO2) | — | — | — | — | — | — | — | — |
| 14 | ABS active (MT only) | — | — | — | — | — | — | — | — |
| 16 | Power ground (E1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | EFI main relay control (M-REL) | — | W37 | — | 0.5 | NEXUSS3-A-26 | — | — | — |
| 3 | Check-engine lamp (W) | — | W46 | — | 0.5 | NEXUSS3-A-5 | — | — | — |
| 4 | Fuel pump control (FPC) | — | W47 | — | 0.5 | NEXUSS3-A-6 | — | — | — |
| 5 | Diagnostic test 1 (TE1) | — | W59 | — | 0.5 | NEXUSS3-C-17 | — | — | — |
| 6 | Timing retard (TR) | — | — | — | — | — | — | — | — |
| 7 | Slave throttle position (VTO1) | — | — | — | — | — | — | — | — |
OEM-C86
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Diagnostic test terminal (TT) | — | — | — | — | — | — | — | — |
| 10 | A/T 2nd-gear indicator (2) | — | W61 | — | 0.5 | NEXUSS3-C-27 | — | — | — |
| 11 | Diagnostic test 2 (TE2) | — | W62 | — | 0.5 | NEXUSS3-C-28 | — | — | — |
| 12 | No.1 speed sensor (SP1) | — | W54 | — | 0.5 | NEXUSS3-C-6 | — | — | — |
| 13 | Cat temperature sensor (CCO) | — | W53 | — | 0.5 | NEXUSS3-C-16 | — | — | — |
| 14 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 17 | A/T throttle position (L3) | — | — | — | — | — | — | — | — |
| 18 | A/T throttle position (L2) | — | — | — | — | — | — | — | — |
| 19 | A/T throttle position (L1) | — | — | — | — | — | — | — | — |
| 2 | A/T low-gear indicator (L) | — | — | — | — | — | — | — | — |
| 20 | A/C request (A/C) | — | — | — | — | — | — | — | — |
| 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) | — | — | — | — | — | — | — | — |
| 28 | Electrical load sense (ELS) | — | — | — | — | — | — | — | — |
| 3 | A/T power/normal mode (P) | — | — | — | — | — | — | — | — |
| 5 | A/C clutch relay (ACMG) | — | W38 | — | 0.5 | NEXUSS3-A-9 | — | — | — |
| 6 | A/T overdrive disable 2 (OD2) | — | — | — | — | — | — | — | — |
| 7 | A/T overdrive disable 1 (OD1) | — | W60 | — | 0.5 | NEXUSS3-C-18 | — | — | — |
| 8 | Cat temp warning light (EGW) | — | W48 | — | 0.5 | NEXUSS3-A-7 | — | — | — |
| 9 | Ignition switch (IGSW) | — | W33 | — | 0.5 | NEXUSS3-A-13 | — | — | — |
OEM-C88
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Injector 1 (#10, cyl 1&4) | — | W30 | — | 0.5 | NEXUSS3-A-1 | — | — | — |
| 11 | A/T shift solenoid 1 (S1) | — | W40 | — | 0.5 | NEXUSS3-A-12 | — | — | — |
| 12 | Igniter feedback (IGF) | — | — | — | — | — | — | — | — |
| 13 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 14 | Neutral/park switch (NSW) | — | — | — | — | — | — | — | — |
| 15 | Ignition 3 (IGT3) | — | W26 | — | 0.5 | NEXUSS3-A-29 | — | — | — |
| 16 | Ignition 2 (IGT2) | — | W25 | — | 0.5 | NEXUSS3-A-28 | — | — | — |
| 17 | A/T shift solenoid 2 (S2) | — | W42 | — | 0.5 | NEXUSS3-A-15 | — | — | — |
| 19 | Voltage feedback (VF) | — | — | — | — | — | — | — | — |
| 20 | ISC stepper coil 4 (ISCV4) | — | W45 | — | 0.5 | NEXUSS3-A-4 | — | — | — |
| 21 | ISC stepper coil 3 (ISCV3) | — | W44 | — | 0.5 | NEXUSS3-A-17 | — | — | — |
| 22 | ISC stepper coil 2 (ISCV2) | — | W43 | — | 0.5 | NEXUSS3-A-16 | — | — | — |
| 23 | ISC stepper coil 1 (ISCV1) | — | W41 | — | 0.5 | NEXUSS3-A-14 | — | — | — |
| 24 | Ignition 1 (IGT1) | — | W24 | — | 0.5 | NEXUSS3-A-27 | — | — | — |
| 26 | Ignition 4 (IGT4) | — | W27 | — | 0.5 | NEXUSS3-A-30 | — | — | — |
| 27 | A/T lock-up solenoid (S3) | — | W49 | — | 0.5 | NEXUSS3-A-8 | — | — | — |
| 28 | Power ground (E11) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 29 | Ignition 6 (IGT6) | — | W29 | — | 0.5 | NEXUSS3-A-32 | — | — | — |
| 3 | O2 heater (HT) | — | W39 | — | 0.5 | NEXUSS3-C-33 | — | — | — |
| 30 | Ignition 5 (IGT5) | — | W28 | — | 0.5 | NEXUSS3-A-31 | — | — | — |
| 31 | TRAC throttle idle switch (IDL2) | — | — | — | — | — | — | — | — |
| 32 | TPS idle switch (IDL1) | — | — | — | — | — | — | — | — |
| 33 | Power ground (E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 34 | Power ground (E01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Knock sensor 2 (KNK2, rear) | — | W23 | — | 0.5 | NEXUSS3-C-24 | — | — | — |
| 5 | Knock sensor 1 (KNK1, front) | — | W22 | — | 0.5 | NEXUSS3-C-23 | — | — | — |
| 7 | EVAP purge VSV | — | — | — | — | — | — | — | — |
| 8 | Injector 3 (#30, cyl 2&6) | — | W32 | — | 0.5 | NEXUSS3-A-3 | — | — | — |
| 9 | Injector 2 (#20, cyl 3&5) | — | W31 | — | 0.5 | NEXUSS3-A-2 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-C84-11 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-C84-17 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-C84-22 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-C84-6 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | NEXUSS3-C-26 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | NEXUSS3-C-2 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | NEXUSS3-C-4 | — | — | — |
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 | NEXUSS3-A-18 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | NEXUSS3-A-25 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-C85-16 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-C88-28 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-C88-33 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-C88-34 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | NEXUSS3-A-10 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | NEXUSS3-A-11 | — | — | — |
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 | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-C84-10 | Cam position 1 (G1) | trigger_in | NEXUSS3-C-3 | Home + | trigger_in | single_source | |
| OEM-C84-11 | Cam 1 return (G1-) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-C84-12 | TRAC throttle position (VTA2) | analog_in | NEXUSS3-C-13 | AVI 4 | analog_in | single_source | |
| OEM-C84-13 | O2 sensor (OX1) | lambda_nb_in | NEXUSS3-C-14 | AVI 5 | analog_in | single_source | |
| OEM-C84-14 | Intake air temperature (THA) | temp_in | NEXUSS3-C-15 | AVI 6 | analog_in | single_source | |
| OEM-C84-15 | OD direct-clutch speed sensor (NCO+) | digital_in | NEXUSS3-C-19 | SPI 5 | digital_in | single_source | |
| OEM-C84-16 | Cam position 2 (G2) | trigger_in | NEXUSS3-C-5 | SPI 1 | digital_in | single_source | |
| OEM-C84-17 | Cam 2 return (G2-) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-C84-20 | Coolant temperature (THW) | temp_in | NEXUSS3-C-12 | AVI 3 | analog_in | single_source | |
| OEM-C84-22 | Sensor ground (E2) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-C84-3 | OD direct-clutch speed sensor (NCO-) | digital_in | NEXUSS3-C-20 | SPI 6 | digital_in | single_source | |
| OEM-C84-4 | No.2 speed sensor (SP2-) | digital_in | NEXUSS3-C-7 | SPI 3 | digital_in | single_source | |
| OEM-C84-5 | Crank position (NE) | trigger_in | NEXUSS3-C-1 | Trigger + | trigger_in | single_source | |
| OEM-C84-6 | Crank sensor return (NE-) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-C84-7 | Throttle position (VTA1) | analog_in | NEXUSS3-C-11 | AVI 2 | analog_in | single_source | |
| OEM-C84-8 | Manifold pressure (PIM) | analog_in | NEXUSS3-C-10 | AVI 1 | analog_in | single_source | |
| OEM-C84-9 | No.2 speed sensor (SP2+) | digital_in | NEXUSS3-C-8 | SPI 4 | digital_in | single_source | |
| OEM-C85-1 | Slave engine speed (NEO) | digital_in | — | — | — | single_source | |
| OEM-C85-10 | Fuel pump diagnostic (DI) | digital_in | — | — | — | single_source | |
| OEM-C85-11 | Slave TRAC throttle position (VTO2) | analog_out | — | — | — | single_source | |
| OEM-C85-14 | ABS active (MT only) | digital_in | — | — | — | single_source | |
| OEM-C85-16 | Power ground (E1) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-C85-2 | EFI main relay control (M-REL) | low_side_out | NEXUSS3-A-26 | ECR output | low_side_out | single_source | |
| OEM-C85-3 | Check-engine lamp (W) | low_side_out | NEXUSS3-A-5 | Injector 5 | injector_out | single_source | |
| OEM-C85-4 | Fuel pump control (FPC) | low_side_out | NEXUSS3-A-6 | Injector 6 | injector_out | single_source | |
| OEM-C85-5 | Diagnostic test 1 (TE1) | digital_in | NEXUSS3-C-17 | AVI 8 | analog_in | single_source | |
| OEM-C85-6 | Timing retard (TR) | digital_in | — | — | — | single_source | |
| OEM-C85-7 | Slave throttle position (VTO1) | analog_out | — | — | — | single_source | |
| OEM-C86-1 | Diagnostic test terminal (TT) | digital_in | — | — | — | single_source | |
| OEM-C86-10 | A/T 2nd-gear indicator (2) | digital_in | NEXUSS3-C-27 | AVI 10 | analog_in | single_source | |
| OEM-C86-11 | Diagnostic test 2 (TE2) | digital_in | NEXUSS3-C-28 | AVI 11 | analog_in | single_source | |
| OEM-C86-12 | No.1 speed sensor (SP1) | digital_in | NEXUSS3-C-6 | SPI 2 | digital_in | single_source | |
| OEM-C86-13 | Cat temperature sensor (CCO) | temp_in | NEXUSS3-C-16 | AVI 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 | — | — | — | single_source | |
| OEM-C86-18 | A/T throttle position (L2) | digital_in | — | — | — | single_source | |
| OEM-C86-19 | A/T throttle position (L1) | digital_in | — | — | — | single_source | |
| OEM-C86-2 | A/T low-gear indicator (L) | digital_in | — | — | — | single_source | |
| OEM-C86-20 | A/C request (A/C) | digital_in | — | — | — | single_source | |
| OEM-C86-22 | EFI main relay power (+B) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-C86-23 | EFI main relay power (+B1) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-C86-25 | Stop light switch (STP) | digital_in | — | — | — | single_source | |
| OEM-C86-28 | Electrical load sense (ELS) | digital_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 | NEXUSS3-A-9 | DPO 1 | low_side_out | single_source | |
| OEM-C86-6 | A/T overdrive disable 2 (OD2) | digital_in | — | — | — | single_source | |
| OEM-C86-7 | A/T overdrive disable 1 (OD1) | digital_in | NEXUSS3-C-18 | AVI 9 | analog_in | single_source | |
| OEM-C86-8 | Cat temp warning light (EGW) | low_side_out | NEXUSS3-A-7 | Injector 7 | injector_out | single_source | |
| OEM-C86-9 | Ignition switch (IGSW) | digital_in | NEXUSS3-A-13 | Ignition switch input | digital_in | single_source | |
| OEM-C88-10 | Injector 1 (#10, cyl 1&4) | injector_out | NEXUSS3-A-1 | Injector 1 | injector_out | single_source | |
| OEM-C88-11 | A/T shift solenoid 1 (S1) | low_side_out | NEXUSS3-A-12 | DPO 2 | low_side_out | single_source | |
| OEM-C88-12 | Igniter feedback (IGF) | 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 | NEXUSS3-A-29 | Ignition 3 | ignition_out | single_source | |
| OEM-C88-16 | Ignition 2 (IGT2) | ignition_out | NEXUSS3-A-28 | Ignition 2 | ignition_out | single_source | |
| OEM-C88-17 | A/T shift solenoid 2 (S2) | low_side_out | NEXUSS3-A-15 | DPO 4 | 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 | NEXUSS3-A-4 | Injector 4 | injector_out | single_source | |
| OEM-C88-21 | ISC stepper coil 3 (ISCV3) | low_side_out | NEXUSS3-A-17 | DPO 6 | low_side_out | single_source | |
| OEM-C88-22 | ISC stepper coil 2 (ISCV2) | low_side_out | NEXUSS3-A-16 | DPO 5 | low_side_out | single_source | |
| OEM-C88-23 | ISC stepper coil 1 (ISCV1) | low_side_out | NEXUSS3-A-14 | DPO 3 | low_side_out | single_source | |
| OEM-C88-24 | Ignition 1 (IGT1) | ignition_out | NEXUSS3-A-27 | Ignition 1 | ignition_out | single_source | |
| OEM-C88-26 | Ignition 4 (IGT4) | ignition_out | NEXUSS3-A-30 | Ignition 4 | ignition_out | single_source | |
| OEM-C88-27 | A/T lock-up solenoid (S3) | low_side_out | NEXUSS3-A-8 | Injector 8 | injector_out | single_source | |
| OEM-C88-28 | Power ground (E11) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-C88-29 | Ignition 6 (IGT6) | ignition_out | NEXUSS3-A-32 | Ignition 6 | ignition_out | single_source | |
| OEM-C88-3 | O2 heater (HT) | low_side_out | NEXUSS3-C-33 | WBI 1 Heater - | low_side_out | single_source | |
| OEM-C88-30 | Ignition 5 (IGT5) | ignition_out | NEXUSS3-A-31 | Ignition 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 | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-C88-34 | Power ground (E01) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-C88-4 | Knock sensor 2 (KNK2, rear) | knock_in | NEXUSS3-C-24 | Knock 2 | knock_in | single_source | |
| OEM-C88-5 | Knock sensor 1 (KNK1, front) | knock_in | NEXUSS3-C-23 | Knock 1 | knock_in | single_source | |
| OEM-C88-7 | EVAP purge VSV | low_side_out | — | — | — | single_source | |
| OEM-C88-8 | Injector 3 (#30, cyl 2&6) | injector_out | NEXUSS3-A-3 | Injector 3 | injector_out | single_source | |
| OEM-C88-9 | Injector 2 (#20, cyl 3&5) | injector_out | NEXUSS3-A-2 | Injector 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 | NEXUSS3-A-18 | 0.85 | no route | +12V switched input | — | |
| W4 | SP-14V-1 | NEXUSS3-A-25 | 0.85 | no route | +12V switched input | — | |
| W5 | OEM-C85-16 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W6 | OEM-C88-28 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W7 | OEM-C88-33 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W8 | OEM-C88-34 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W9 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | no route | Battery ground | — | |
| W10 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | no route | Battery ground | — | |
| W11 | OEM-C84-11 | SP-0V-1 | 0.5 | no route | Cam 1 return (G1-) | — | |
| W12 | OEM-C84-17 | SP-0V-1 | 0.5 | no route | Cam 2 return (G2-) | — | |
| W13 | OEM-C84-22 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W14 | OEM-C84-6 | SP-0V-1 | 0.5 | no route | Crank sensor return (NE-) | — | |
| W15 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | no route | Signal ground | — | |
| W16 | OEM-C84-1 | NEXUSS3-C-25 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W17 | OEM-C84-5 | NEXUSS3-C-1 | 0.5 | no route | Crank position (NE) | — | |
| W18 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | no route | Trigger - | — | |
| W19 | OEM-C84-10 | NEXUSS3-C-3 | 0.5 | no route | Cam position 1 (G1) | — | |
| W20 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | no route | Home - | — | |
| W21 | OEM-C84-16 | NEXUSS3-C-5 | 0.5 | no route | Cam position 2 (G2) | — | |
| W22 | OEM-C88-5 | NEXUSS3-C-23 | 0.5 | no route | Knock sensor 1 (KNK1, front) | — | |
| W23 | OEM-C88-4 | NEXUSS3-C-24 | 0.5 | no route | Knock sensor 2 (KNK2, rear) | — | |
| W24 | OEM-C88-24 | NEXUSS3-A-27 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W25 | OEM-C88-16 | NEXUSS3-A-28 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W26 | OEM-C88-15 | NEXUSS3-A-29 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W27 | OEM-C88-26 | NEXUSS3-A-30 | 0.5 | no route | Ignition 4 (IGT4) | — | |
| W28 | OEM-C88-30 | NEXUSS3-A-31 | 0.5 | no route | Ignition 5 (IGT5) | — | |
| W29 | OEM-C88-29 | NEXUSS3-A-32 | 0.5 | no route | Ignition 6 (IGT6) | — | |
| W30 | OEM-C88-10 | NEXUSS3-A-1 | 0.5 | no route | Injector 1 (#10, cyl 1&4) | — | |
| W31 | OEM-C88-9 | NEXUSS3-A-2 | 0.5 | no route | Injector 2 (#20, cyl 3&5) | — | |
| W32 | OEM-C88-8 | NEXUSS3-A-3 | 0.5 | no route | Injector 3 (#30, cyl 2&6) | — | |
| W33 | OEM-C86-9 | NEXUSS3-A-13 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W34 | OEM-C84-8 | NEXUSS3-C-10 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W35 | OEM-C84-7 | NEXUSS3-C-11 | 0.5 | no route | Throttle position (VTA1) | — | |
| W36 | OEM-C84-20 | NEXUSS3-C-12 | 0.5 | no route | Coolant temperature (THW) | — | |
| W37 | OEM-C85-2 | NEXUSS3-A-26 | 0.5 | no route | EFI main relay control (M-REL) | — | |
| W38 | OEM-C86-5 | NEXUSS3-A-9 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W39 | OEM-C88-3 | NEXUSS3-C-33 | 0.5 | no route | O2 heater (HT) | — | |
| W40 | OEM-C88-11 | NEXUSS3-A-12 | 0.5 | no route | A/T shift solenoid 1 (S1) | — | |
| W41 | OEM-C88-23 | NEXUSS3-A-14 | 0.5 | no route | ISC stepper coil 1 (ISCV1) | — | |
| W42 | OEM-C88-17 | NEXUSS3-A-15 | 0.5 | no route | A/T shift solenoid 2 (S2) | — | |
| W43 | OEM-C88-22 | NEXUSS3-A-16 | 0.5 | no route | ISC stepper coil 2 (ISCV2) | — | |
| W44 | OEM-C88-21 | NEXUSS3-A-17 | 0.5 | no route | ISC stepper coil 3 (ISCV3) | — | |
| W45 | OEM-C88-20 | NEXUSS3-A-4 | 0.5 | no route | ISC stepper coil 4 (ISCV4) | — | |
| W46 | OEM-C85-3 | NEXUSS3-A-5 | 0.5 | no route | Check-engine lamp (W) | — | |
| W47 | OEM-C85-4 | NEXUSS3-A-6 | 0.5 | no route | Fuel pump control (FPC) | — | |
| W48 | OEM-C86-8 | NEXUSS3-A-7 | 0.5 | no route | Cat temp warning light (EGW) | — | |
| W49 | OEM-C88-27 | NEXUSS3-A-8 | 0.5 | no route | A/T lock-up solenoid (S3) | — | |
| W50 | OEM-C84-12 | NEXUSS3-C-13 | 0.5 | no route | TRAC throttle position (VTA2) | — | |
| W51 | OEM-C84-13 | NEXUSS3-C-14 | 0.5 | no route | O2 sensor (OX1) | — | |
| W52 | OEM-C84-14 | NEXUSS3-C-15 | 0.5 | no route | Intake air temperature (THA) | — | |
| W53 | OEM-C86-13 | NEXUSS3-C-16 | 0.5 | no route | Cat temperature sensor (CCO) | — | |
| W54 | OEM-C86-12 | NEXUSS3-C-6 | 0.5 | no route | No.1 speed sensor (SP1) | — | |
| W55 | OEM-C84-4 | NEXUSS3-C-7 | 0.5 | no route | No.2 speed sensor (SP2-) | — | |
| W56 | OEM-C84-9 | NEXUSS3-C-8 | 0.5 | no route | No.2 speed sensor (SP2+) | — | |
| W57 | OEM-C84-15 | NEXUSS3-C-19 | 0.5 | no route | OD direct-clutch speed sensor (NCO+) | — | |
| W58 | OEM-C84-3 | NEXUSS3-C-20 | 0.5 | no route | OD direct-clutch speed sensor (NCO-) | — | |
| W59 | OEM-C85-5 | NEXUSS3-C-17 | 0.5 | no route | Diagnostic test 1 (TE1) | — | |
| W60 | OEM-C86-7 | NEXUSS3-C-18 | 0.5 | no route | A/T overdrive disable 1 (OD1) | — | |
| W61 | OEM-C86-10 | NEXUSS3-C-27 | 0.5 | no route | A/T 2nd-gear indicator (2) | — | |
| W62 | OEM-C86-11 | NEXUSS3-C-28 | 0.5 | no route | Diagnostic test 2 (TE2) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (16)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | LOAD_UNKNOWN | NEXUSS3-A-26 | NEXUSS3-A-26 "ECR output" drives OEM-C85-2 EFI main relay control (M-REL) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-C84-16 ↔ NEXUSS3-C-5 | OEM-C84-16 "Cam position 2 (G2)" [trigger_in] is wired to NEXUSS3-C-5 "SPI 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-C85-5 ↔ NEXUSS3-C-17 | OEM-C85-5 "Diagnostic test 1 (TE1)" [digital_in] is wired to NEXUSS3-C-17 "AVI 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-C86-10 ↔ NEXUSS3-C-27 | OEM-C86-10 "A/T 2nd-gear indicator (2)" [digital_in] is wired to NEXUSS3-C-27 "AVI 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-C86-11 ↔ NEXUSS3-C-28 | OEM-C86-11 "Diagnostic test 2 (TE2)" [digital_in] is wired to NEXUSS3-C-28 "AVI 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-C86-7 ↔ NEXUSS3-C-18 | OEM-C86-7 "A/T overdrive disable 1 (OD1)" [digital_in] is wired to NEXUSS3-C-18 "AVI 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. |
| info | NET_FAMILY | NEXUSS3-C-26 ↔ NEXUSS3-C-4 | NEXUSS3-C-26 "Signal ground" [sensor_ground] is wired to NEXUSS3-C-4 "Home -" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-C84-14 ↔ NEXUSS3-C-15 | OEM-C84-14 "Intake air temperature (THA)" [temp_in] is wired to NEXUSS3-C-15 "AVI 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 ↔ NEXUSS3-C-12 | OEM-C84-20 "Coolant temperature (THW)" [temp_in] is wired to NEXUSS3-C-12 "AVI 3" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C85-3 ↔ NEXUSS3-A-5 | OEM-C85-3 "Check-engine lamp (W)" [low_side_out] is wired to NEXUSS3-A-5 "Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C85-4 ↔ NEXUSS3-A-6 | OEM-C85-4 "Fuel pump control (FPC)" [low_side_out] is wired to NEXUSS3-A-6 "Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C86-13 ↔ NEXUSS3-C-16 | OEM-C86-13 "Cat temperature sensor (CCO)" [temp_in] is wired to NEXUSS3-C-16 "AVI 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 ↔ NEXUSS3-A-7 | OEM-C86-8 "Cat temp warning light (EGW)" [low_side_out] is wired to NEXUSS3-A-7 "Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C88-20 ↔ NEXUSS3-A-4 | OEM-C88-20 "ISC stepper coil 4 (ISCV4)" [low_side_out] is wired to NEXUSS3-A-4 "Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C88-27 ↔ NEXUSS3-A-8 | OEM-C88-27 "A/T lock-up solenoid (S3)" [low_side_out] is wired to NEXUSS3-A-8 "Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 23 optional OEM pins are not mapped: OEM-C85-1 Slave engine speed (NEO); OEM-C85-10 Fuel pump diagnostic (DI); OEM-C85-11 Slave TRAC throttle position (VTO2); OEM-C85-14 ABS active (MT only); OEM-C85-6 Timing retard (TR); OEM-C85-7 Slave throttle position (VTO1); OEM-C86-1 Diagnostic test terminal (TT); OEM-C86-17 A/T throttle position (L3); OEM-C86-18 A/T throttle position (L2); OEM-C86-19 A/T throttle position (L1); OEM-C86-2 A/T low-gear indicator (L); OEM-C86-20 A/C request (A/C); OEM-C86-25 Stop light switch (STP); OEM-C86-28 Electrical load sense (ELS); OEM-C86-3 A/T power/normal mode (P); OEM-C86-6 A/T overdrive disable 2 (OD2); OEM-C88-12 Igniter feedback (IGF); 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); OEM-C88-7 EVAP purge VSV |
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. Not wired: - OEM-C86 14: Battery constant (BATT): Haltech Nexus S3 has no battery-constant input; not needed - OEM-C88 7: EVAP purge VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-C85 1: Slave engine speed (NEO): no free frequency_in/switch_in on Haltech Nexus S3 - OEM-C85 10: Fuel pump diagnostic (DI): no free frequency_in/switch_in on Haltech Nexus S3 - OEM-C88 12: Igniter feedback (IGF): no free frequency_in/switch_in on Haltech Nexus S3 - OEM-C86 6: A/T overdrive disable 2 (OD2): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C85 14: ABS active (MT only): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C85 6: Timing retard (TR): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 1: Diagnostic test terminal (TT): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 17: A/T throttle position (L3): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 18: A/T throttle position (L2): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 19: A/T throttle position (L1): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 2: A/T low-gear indicator (L): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 20: A/C request (A/C): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 25: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 28: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C86 3: A/T power/normal mode (P): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C88 13: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C88 14: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C88 31: TRAC throttle idle switch (IDL2): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C88 32: TPS idle switch (IDL1): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-C85 11: Slave TRAC throttle position (VTO2): no free analog_out on Haltech Nexus S3 - OEM-C85 7: Slave throttle position (VTO1): no free analog_out on Haltech Nexus S3 - OEM-C88 19: Voltage feedback (VF): no free analog_out on Haltech Nexus S3
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Haltech: Nexus S3 Plug 'n' Play adapter QSG (Subaru WRX/STI ADM, HT-186300) — ECU Connector A & C pinout | https://www.haltech.com/product/ht-186300-nexus-s3-plug-n-play-adapter-harness/ | archive | 2026-10-05 | 3cab7cd337c2 |
| 4 | vendor_doc | Haltech: Nexus S3/S2 ECU Overview (QSG) — specifications | https://store.haltech.com/product/ht-213000-nexus-s3-ecu-only/ | archive | 2026-10-05 | 388299668207 |
| 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 | — | — | — |