Toyota Supra A80 1993-98 USDM (2JZ-GE, non-VVT) → Haltech Nexus S3 HT-213000 (auto)
Toyota Supra A80 1993-98 USDM (2JZ-GE, 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 | 55 wires · 7 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-E10-31 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E10-32 | 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-E9-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E9-69 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E9-80 | 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-E9-65 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E9-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E9-41 | NEXUSS3-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E9-27 | NEXUSS3-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E9-26 | NEXUSS3-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E9-25 | NEXUSS3-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E9-50 | NEXUSS3-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E9-49 | NEXUSS3-C-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E9-57 | NEXUSS3-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E9-20 | NEXUSS3-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E9-19 | NEXUSS3-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E9-18 | NEXUSS3-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E9-17 | NEXUSS3-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E9-16 | NEXUSS3-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E9-15 | NEXUSS3-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E10-1 | NEXUSS3-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E9-62 | NEXUSS3-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E9-43 | NEXUSS3-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E9-44 | NEXUSS3-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E10-23 | NEXUSS3-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E10-24 | NEXUSS3-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E9-10 | NEXUSS3-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E9-35 | NEXUSS3-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E9-34 | NEXUSS3-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E9-9 | NEXUSS3-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E9-33 | NEXUSS3-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E9-32 | NEXUSS3-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E10-22 | NEXUSS3-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E10-5 | NEXUSS3-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E9-47 | NEXUSS3-C-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E9-48 | NEXUSS3-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E10-29 | NEXUSS3-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E9-24 | NEXUSS3-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E9-45 | NEXUSS3-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E10-2 | NEXUSS3-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E9-23 | NEXUSS3-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E9-3 | NEXUSS3-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E10-21 | NEXUSS3-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E9-58 | NEXUSS3-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E10-12 | NEXUSS3-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E10-20 | NEXUSS3-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E10-19 | 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-A-18 | NEXUSS3-A-10 | open (OL) | +12 V supply must not touch power ground | |
| 2 | NEXUSS3-A-18 | NEXUSS3-C-2 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | NEXUSS3-C-25 | NEXUSS3-C-2 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | NEXUSS3-A-10 | NEXUSS3-C-25 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | NEXUSS3-A-18 | NEXUSS3-C-25 | open (OL) | +12 V supply must not touch 5 V sensor reference |
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 | — | W23 | — | 0.5 | OEM-E9-20 | — | — | — |
| 10 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | DPO 2 | — | W35 | — | 0.5 | OEM-E9-10 | — | — | — |
| 13 | Ignition switch input | — | W29 | — | 0.5 | OEM-E10-1 | — | — | — |
| 14 | DPO 3 | — | W36 | — | 0.5 | OEM-E9-35 | — | — | — |
| 15 | DPO 4 | — | W37 | — | 0.5 | OEM-E9-34 | — | — | — |
| 16 | DPO 5 | — | W38 | — | 0.5 | OEM-E9-9 | — | — | — |
| 17 | DPO 6 | — | W39 | — | 0.5 | OEM-E9-33 | — | — | — |
| 18 | +12V switched input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 19 | HBO 1 | — | — | — | — | — | — | — | — |
| 2 | Injector 2 | — | W24 | — | 0.5 | OEM-E9-19 | — | — | — |
| 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 | — | W33 | — | 0.5 | OEM-E10-23 | — | — | — |
| 27 | Ignition 1 | — | W22 | — | 0.5 | OEM-E9-57 | — | — | — |
| 28 | Ignition 2 | — | — | — | — | — | — | — | — |
| 29 | Ignition 3 | — | — | — | — | — | — | — | — |
| 3 | Injector 3 | — | W25 | — | 0.5 | OEM-E9-18 | — | — | — |
| 30 | Ignition 4 | — | — | — | — | — | — | — | — |
| 31 | Ignition 5 | — | — | — | — | — | — | — | — |
| 32 | Ignition 6 | — | — | — | — | — | — | — | — |
| 33 | Ignition 7 | — | — | — | — | — | — | — | — |
| 34 | Ignition 8 | — | — | — | — | — | — | — | — |
| 4 | Injector 4 | — | W26 | — | 0.5 | OEM-E9-17 | — | — | — |
| 5 | Injector 5 | — | W27 | — | 0.5 | OEM-E9-16 | — | — | — |
| 6 | Injector 6 | — | W28 | — | 0.5 | OEM-E9-15 | — | — | — |
| 7 | Injector 7 | — | W41 | — | 0.5 | OEM-E10-22 | — | — | — |
| 8 | Injector 8 | — | W42 | — | 0.5 | OEM-E10-5 | — | — | — |
| 9 | DPO 1 | — | W34 | — | 0.5 | OEM-E10-24 | — | — | — |
NEXUSS3-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Trigger + | — | W15 | — | 0.5 | OEM-E9-27 | — | — | — |
| 10 | AVI 1 | — | W30 | — | 0.5 | OEM-E9-62 | — | — | — |
| 11 | AVI 2 | — | W31 | — | 0.5 | OEM-E9-43 | — | — | — |
| 12 | AVI 3 | — | W32 | — | 0.5 | OEM-E9-44 | — | — | — |
| 13 | AVI 4 | — | W43 | — | 0.5 | OEM-E9-47 | — | — | — |
| 14 | AVI 5 | — | W44 | — | 0.5 | OEM-E9-48 | — | — | — |
| 15 | AVI 6 | — | W45 | — | 0.5 | OEM-E10-29 | — | — | — |
| 16 | AVI 7 | — | W46 | — | 0.5 | OEM-E9-24 | — | — | — |
| 17 | AVI 8 | — | W47 | — | 0.5 | OEM-E9-45 | — | — | — |
| 18 | AVI 9 | — | W53 | — | 0.5 | OEM-E10-12 | — | — | — |
| 19 | SPI 5 | — | W51 | — | 0.5 | OEM-E10-21 | — | — | — |
| 2 | Trigger - | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | SPI 6 | — | W52 | — | 0.5 | OEM-E9-58 | — | — | — |
| 21 | CAN 2 High | — | — | — | — | — | — | — | — |
| 22 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 23 | Knock 1 | — | W20 | — | 0.5 | OEM-E9-50 | — | — | — |
| 24 | Knock 2 | — | W21 | — | 0.5 | OEM-E9-49 | — | — | — |
| 25 | +5V | — | W14 | — | 0.5 | OEM-E9-41 | — | — | — |
| 26 | Signal ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | AVI 10 | — | W54 | — | 0.5 | OEM-E10-20 | — | — | — |
| 28 | AVI 11 | — | W55 | — | 0.5 | OEM-E10-19 | — | — | — |
| 29 | WBI 1 Heater + | — | — | — | — | — | — | — | — |
| 3 | Home + | — | W17 | — | 0.5 | OEM-E9-26 | — | — | — |
| 30 | WBI 1 Input | — | — | — | — | — | — | — | — |
| 31 | WBI 1 Pump | — | — | — | — | — | — | — | — |
| 32 | WBI 1 Nernst | — | — | — | — | — | — | — | — |
| 33 | WBI 1 Heater - | — | W40 | — | 0.5 | OEM-E9-32 | — | — | — |
| 34 | WBI 1 Cal | — | — | — | — | — | — | — | — |
| 4 | Home - | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | SPI 1 | — | W19 | — | 0.5 | OEM-E9-25 | — | — | — |
| 6 | SPI 2 | — | W48 | — | 0.5 | OEM-E10-2 | — | — | — |
| 7 | SPI 3 | — | W49 | — | 0.5 | OEM-E9-23 | — | — | — |
| 8 | SPI 4 | — | W50 | — | 0.5 | OEM-E9-3 | — | — | — |
| 9 | +8V | — | — | — | — | — | — | — | — |
OEM-E10
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | W29 | — | 0.5 | NEXUSS3-A-13 | — | — | — |
| 10 | A/T low-gear indicator (L) | — | — | — | — | — | — | — | — |
| 12 | A/T overdrive disable 1 (OD1) | — | W53 | — | 0.5 | NEXUSS3-C-18 | — | — | — |
| 15 | Electrical load sense (ELS) | — | — | — | — | — | — | — | — |
| 17 | Diagnostic test terminal (TT) | — | — | — | — | — | — | — | — |
| 18 | A/T manual mode select (M) | — | — | — | — | — | — | — | — |
| 19 | Diagnostic test 2 (TE2) | — | W55 | — | 0.5 | NEXUSS3-C-28 | — | — | — |
| 2 | No.1 speed sensor (SP1) | — | W48 | — | 0.5 | NEXUSS3-C-6 | — | — | — |
| 20 | Diagnostic test 1 (TE1) | — | W54 | — | 0.5 | NEXUSS3-C-27 | — | — | — |
| 21 | Fuel pump diagnostic (DI) | — | W51 | — | 0.5 | NEXUSS3-C-19 | — | — | — |
| 22 | Fuel pump control (FPC) | — | W41 | — | 0.5 | NEXUSS3-A-7 | — | — | — |
| 23 | A/C clutch relay (ACMG) | — | W33 | — | 0.5 | NEXUSS3-A-26 | — | — | — |
| 24 | EFI main relay control (M-REL) | — | W34 | — | 0.5 | NEXUSS3-A-9 | — | — | — |
| 25 | A/T manual indicator (MI) | — | — | — | — | — | — | — | — |
| 28 | A/T overdrive disable 2 (OD2) | — | — | — | — | — | — | — | — |
| 29 | Cat temperature sensor (CCO) | — | W45 | — | 0.5 | NEXUSS3-C-15 | — | — | — |
| 3 | A/T kickdown switch (KD) | — | — | — | — | — | — | — | — |
| 31 | EFI main relay power (+B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | EFI main relay power (+B1) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 34 | A/C request (A/C) | — | — | — | — | — | — | — | — |
| 35 | Power steering switch (PS) | — | — | — | — | — | — | — | — |
| 4 | Stop light switch (STP) | — | — | — | — | — | — | — | — |
| 5 | Cat-temp warning light (EGW) | — | W42 | — | 0.5 | NEXUSS3-A-8 | — | — | — |
| 6 | Check-engine light (W) | — | — | — | — | — | — | — | — |
| 9 | A/T 2nd-gear indicator (2) | — | — | — | — | — | — | — | — |
OEM-E9
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | A/T shift solenoid 1 (S1) | — | W35 | — | 0.5 | NEXUSS3-A-12 | — | — | — |
| 15 | Injector 6 (#60, rear) | — | W28 | — | 0.5 | NEXUSS3-A-6 | — | — | — |
| 16 | Injector 5 (#50) | — | W27 | — | 0.5 | NEXUSS3-A-5 | — | — | — |
| 17 | Injector 4 (#40) | — | W26 | — | 0.5 | NEXUSS3-A-4 | — | — | — |
| 18 | Injector 3 (#30) | — | W25 | — | 0.5 | NEXUSS3-A-3 | — | — | — |
| 19 | Injector 2 (#20) | — | W24 | — | 0.5 | NEXUSS3-A-2 | — | — | — |
| 20 | Injector 1 (#10, front) | — | W23 | — | 0.5 | NEXUSS3-A-1 | — | — | — |
| 23 | No.2 speed sensor (SP2+) | — | W49 | — | 0.5 | NEXUSS3-C-7 | — | — | — |
| 24 | A/T oil temperature (OIL) | — | W46 | — | 0.5 | NEXUSS3-C-16 | — | — | — |
| 25 | Cam position 2 (G2) | — | W19 | — | 0.5 | NEXUSS3-C-5 | — | — | — |
| 26 | Cam position 1 (G1) | — | W17 | — | 0.5 | NEXUSS3-C-3 | — | — | — |
| 27 | Crank position (NE) | — | W15 | — | 0.5 | NEXUSS3-C-1 | — | — | — |
| 28 | Voltage feedback 2 (VF2) | — | — | — | — | — | — | — | — |
| 29 | Voltage feedback 1 (VF1) | — | — | — | — | — | — | — | — |
| 3 | No.2 speed sensor return (SP2-) | — | W50 | — | 0.5 | NEXUSS3-C-8 | — | — | — |
| 32 | ISC stepper coil 4 (ISC4) | — | W40 | — | 0.5 | NEXUSS3-C-33 | — | — | — |
| 33 | ISC stepper coil 3 (ISC3) | — | W39 | — | 0.5 | NEXUSS3-A-17 | — | — | — |
| 34 | ISC stepper coil 2 (ISC2) | — | W37 | — | 0.5 | NEXUSS3-A-15 | — | — | — |
| 35 | ISC stepper coil 1 (ISC1) | — | W36 | — | 0.5 | NEXUSS3-A-14 | — | — | — |
| 39 | ACIS intake VSV | — | — | — | — | — | — | — | — |
| 4 | Power ground (E11) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 41 | Sensor supply +5V (VCC) | — | W14 | — | 0.5 | NEXUSS3-C-25 | — | — | — |
| 43 | Throttle position (VTA1) | — | W31 | — | 0.5 | NEXUSS3-C-11 | — | — | — |
| 44 | Coolant temperature (THW) | — | W32 | — | 0.5 | NEXUSS3-C-12 | — | — | — |
| 45 | Intake air temperature (THA) | — | W47 | — | 0.5 | NEXUSS3-C-17 | — | — | — |
| 47 | O2 sensor 2 (OX2, rear bank) | — | W43 | — | 0.5 | NEXUSS3-C-13 | — | — | — |
| 48 | O2 sensor 1 (OX1, front bank) | — | W44 | — | 0.5 | NEXUSS3-C-14 | — | — | — |
| 49 | Knock sensor 2 (KNK2, rear) | — | W21 | — | 0.5 | NEXUSS3-C-24 | — | — | — |
| 50 | Knock sensor 1 (KNK1, front) | — | W20 | — | 0.5 | NEXUSS3-C-23 | — | — | — |
| 57 | Igniter trigger (IGT) | — | W22 | — | 0.5 | NEXUSS3-A-27 | — | — | — |
| 58 | Igniter verification (IGF) | — | W52 | — | 0.5 | NEXUSS3-C-20 | — | — | — |
| 62 | Manifold pressure (PIM) | — | W30 | — | 0.5 | NEXUSS3-C-10 | — | — | — |
| 64 | TPS idle switch (IDL1) | — | — | — | — | — | — | — | — |
| 65 | Sensor ground (E2) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 69 | Power ground (E1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Distributor ground (G-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 74 | EVAP purge VSV | — | — | — | — | — | — | — | — |
| 76 | Neutral/park switch (NSW) | — | — | — | — | — | — | — | — |
| 77 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 79 | Power ground (E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | A/T lock-up solenoid (S3) | — | — | — | — | — | — | — | — |
| 80 | Power ground (E01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | A/T shift solenoid 2 (S2) | — | W38 | — | 0.5 | NEXUSS3-A-16 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-E9-65 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-E9-7 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | NEXUSS3-C-26 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | NEXUSS3-C-2 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | NEXUSS3-C-4 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E10-31 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E10-32 | — | — | — |
| 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-E9-4 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-E9-69 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E9-79 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E9-80 | — | — | — |
| 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-E10-1 | Ignition switch (IGSW) | digital_in | NEXUSS3-A-13 | Ignition switch input | digital_in | single_source | |
| OEM-E10-10 | A/T low-gear indicator (L) | digital_in | — | — | — | single_source | |
| OEM-E10-12 | A/T overdrive disable 1 (OD1) | digital_in | NEXUSS3-C-18 | AVI 9 | analog_in | single_source | |
| OEM-E10-15 | Electrical load sense (ELS) | digital_in | — | — | — | single_source | |
| OEM-E10-17 | Diagnostic test terminal (TT) | digital_in | — | — | — | single_source | |
| OEM-E10-18 | A/T manual mode select (M) | digital_in | — | — | — | single_source | |
| OEM-E10-19 | Diagnostic test 2 (TE2) | digital_in | NEXUSS3-C-28 | AVI 11 | analog_in | single_source | |
| OEM-E10-2 | No.1 speed sensor (SP1) | digital_in | NEXUSS3-C-6 | SPI 2 | digital_in | single_source | |
| OEM-E10-20 | Diagnostic test 1 (TE1) | digital_in | NEXUSS3-C-27 | AVI 10 | analog_in | single_source | |
| OEM-E10-21 | Fuel pump diagnostic (DI) | digital_in | NEXUSS3-C-19 | SPI 5 | digital_in | single_source | |
| OEM-E10-22 | Fuel pump control (FPC) | low_side_out | NEXUSS3-A-7 | Injector 7 | injector_out | single_source | |
| OEM-E10-23 | A/C clutch relay (ACMG) | low_side_out | NEXUSS3-A-26 | ECR output | low_side_out | single_source | |
| OEM-E10-24 | EFI main relay control (M-REL) | low_side_out | NEXUSS3-A-9 | DPO 1 | low_side_out | single_source | |
| OEM-E10-25 | A/T manual indicator (MI) | digital_in | — | — | — | single_source | |
| OEM-E10-28 | A/T overdrive disable 2 (OD2) | digital_in | — | — | — | single_source | |
| OEM-E10-29 | Cat temperature sensor (CCO) | temp_in | NEXUSS3-C-15 | AVI 6 | analog_in | single_source | |
| OEM-E10-3 | A/T kickdown switch (KD) | digital_in | — | — | — | single_source | |
| OEM-E10-31 | EFI main relay power (+B) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-E10-32 | EFI main relay power (+B1) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-E10-33 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-E10-34 | A/C request (A/C) | digital_in | — | — | — | single_source | |
| OEM-E10-35 | Power steering switch (PS) | digital_in | — | — | — | single_source | |
| OEM-E10-4 | Stop light switch (STP) | digital_in | — | — | — | single_source | |
| OEM-E10-5 | Cat-temp warning light (EGW) | low_side_out | NEXUSS3-A-8 | Injector 8 | injector_out | single_source | |
| OEM-E10-6 | Check-engine light (W) | low_side_out | — | — | — | single_source | |
| OEM-E10-9 | A/T 2nd-gear indicator (2) | digital_in | — | — | — | single_source | |
| OEM-E9-10 | A/T shift solenoid 1 (S1) | low_side_out | NEXUSS3-A-12 | DPO 2 | low_side_out | single_source | |
| OEM-E9-15 | Injector 6 (#60, rear) | injector_out | NEXUSS3-A-6 | Injector 6 | injector_out | single_source | |
| OEM-E9-16 | Injector 5 (#50) | injector_out | NEXUSS3-A-5 | Injector 5 | injector_out | single_source | |
| OEM-E9-17 | Injector 4 (#40) | injector_out | NEXUSS3-A-4 | Injector 4 | injector_out | single_source | |
| OEM-E9-18 | Injector 3 (#30) | injector_out | NEXUSS3-A-3 | Injector 3 | injector_out | single_source | |
| OEM-E9-19 | Injector 2 (#20) | injector_out | NEXUSS3-A-2 | Injector 2 | injector_out | single_source | |
| OEM-E9-20 | Injector 1 (#10, front) | injector_out | NEXUSS3-A-1 | Injector 1 | injector_out | single_source | |
| OEM-E9-23 | No.2 speed sensor (SP2+) | digital_in | NEXUSS3-C-7 | SPI 3 | digital_in | single_source | |
| OEM-E9-24 | A/T oil temperature (OIL) | temp_in | NEXUSS3-C-16 | AVI 7 | analog_in | single_source | |
| OEM-E9-25 | Cam position 2 (G2) | trigger_in | NEXUSS3-C-5 | SPI 1 | digital_in | single_source | |
| OEM-E9-26 | Cam position 1 (G1) | trigger_in | NEXUSS3-C-3 | Home + | trigger_in | single_source | |
| OEM-E9-27 | Crank position (NE) | trigger_in | NEXUSS3-C-1 | Trigger + | trigger_in | single_source | |
| OEM-E9-28 | Voltage feedback 2 (VF2) | analog_out | — | — | — | single_source | |
| OEM-E9-29 | Voltage feedback 1 (VF1) | analog_out | — | — | — | single_source | |
| OEM-E9-3 | No.2 speed sensor return (SP2-) | digital_in | NEXUSS3-C-8 | SPI 4 | digital_in | single_source | |
| OEM-E9-32 | ISC stepper coil 4 (ISC4) | low_side_out | NEXUSS3-C-33 | WBI 1 Heater - | low_side_out | single_source | |
| OEM-E9-33 | ISC stepper coil 3 (ISC3) | low_side_out | NEXUSS3-A-17 | DPO 6 | low_side_out | single_source | |
| OEM-E9-34 | ISC stepper coil 2 (ISC2) | low_side_out | NEXUSS3-A-15 | DPO 4 | low_side_out | single_source | |
| OEM-E9-35 | ISC stepper coil 1 (ISC1) | low_side_out | NEXUSS3-A-14 | DPO 3 | low_side_out | single_source | |
| OEM-E9-39 | ACIS intake VSV | low_side_out | — | — | — | single_source | |
| OEM-E9-4 | Power ground (E11) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-E9-41 | Sensor supply +5V (VCC) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-E9-43 | Throttle position (VTA1) | analog_in | NEXUSS3-C-11 | AVI 2 | analog_in | single_source | |
| OEM-E9-44 | Coolant temperature (THW) | temp_in | NEXUSS3-C-12 | AVI 3 | analog_in | single_source | |
| OEM-E9-45 | Intake air temperature (THA) | temp_in | NEXUSS3-C-17 | AVI 8 | analog_in | single_source | |
| OEM-E9-47 | O2 sensor 2 (OX2, rear bank) | lambda_nb_in | NEXUSS3-C-13 | AVI 4 | analog_in | single_source | |
| OEM-E9-48 | O2 sensor 1 (OX1, front bank) | lambda_nb_in | NEXUSS3-C-14 | AVI 5 | analog_in | single_source | |
| OEM-E9-49 | Knock sensor 2 (KNK2, rear) | knock_in | NEXUSS3-C-24 | Knock 2 | knock_in | single_source | |
| OEM-E9-50 | Knock sensor 1 (KNK1, front) | knock_in | NEXUSS3-C-23 | Knock 1 | knock_in | single_source | |
| OEM-E9-57 | Igniter trigger (IGT) | ignition_out | NEXUSS3-A-27 | Ignition 1 | ignition_out | single_source | |
| OEM-E9-58 | Igniter verification (IGF) | digital_in | NEXUSS3-C-20 | SPI 6 | digital_in | single_source | |
| OEM-E9-62 | Manifold pressure (PIM) | analog_in | NEXUSS3-C-10 | AVI 1 | analog_in | single_source | |
| OEM-E9-64 | TPS idle switch (IDL1) | digital_in | — | — | — | single_source | |
| OEM-E9-65 | 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-E9-69 | Power ground (E1) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-E9-7 | Distributor ground (G-) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-E9-74 | EVAP purge VSV | low_side_out | — | — | — | single_source | |
| OEM-E9-76 | Neutral/park switch (NSW) | digital_in | — | — | — | single_source | |
| OEM-E9-77 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-E9-79 | Power ground (E02) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-E9-8 | A/T lock-up solenoid (S3) | low_side_out | — | — | — | single_source | |
| OEM-E9-80 | Power ground (E01) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-E9-9 | A/T shift solenoid 2 (S2) | low_side_out | NEXUSS3-A-16 | DPO 5 | low_side_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E10-31 | SP-14V-1 | 0.85 | no route | EFI main relay power (+B) | — | |
| W2 | OEM-E10-32 | 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-E9-4 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W6 | OEM-E9-69 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W8 | OEM-E9-80 | 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-E9-65 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W12 | OEM-E9-7 | SP-0V-1 | 0.5 | no route | Distributor ground (G-) | — | |
| W13 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | no route | Signal ground | — | |
| W14 | OEM-E9-41 | NEXUSS3-C-25 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W15 | OEM-E9-27 | NEXUSS3-C-1 | 0.5 | no route | Crank position (NE) | — | |
| W16 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | no route | Trigger - | — | |
| W17 | OEM-E9-26 | NEXUSS3-C-3 | 0.5 | no route | Cam position 1 (G1) | — | |
| W18 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | no route | Home - | — | |
| W19 | OEM-E9-25 | NEXUSS3-C-5 | 0.5 | no route | Cam position 2 (G2) | — | |
| W20 | OEM-E9-50 | NEXUSS3-C-23 | 0.5 | no route | Knock sensor 1 (KNK1, front) | — | |
| W21 | OEM-E9-49 | NEXUSS3-C-24 | 0.5 | no route | Knock sensor 2 (KNK2, rear) | — | |
| W22 | OEM-E9-57 | NEXUSS3-A-27 | 0.5 | no route | Igniter trigger (IGT) | — | |
| W23 | OEM-E9-20 | NEXUSS3-A-1 | 0.5 | no route | Injector 1 (#10, front) | — | |
| W24 | OEM-E9-19 | NEXUSS3-A-2 | 0.5 | no route | Injector 2 (#20) | — | |
| W25 | OEM-E9-18 | NEXUSS3-A-3 | 0.5 | no route | Injector 3 (#30) | — | |
| W26 | OEM-E9-17 | NEXUSS3-A-4 | 0.5 | no route | Injector 4 (#40) | — | |
| W27 | OEM-E9-16 | NEXUSS3-A-5 | 0.5 | no route | Injector 5 (#50) | — | |
| W28 | OEM-E9-15 | NEXUSS3-A-6 | 0.5 | no route | Injector 6 (#60, rear) | — | |
| W29 | OEM-E10-1 | NEXUSS3-A-13 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W30 | OEM-E9-62 | NEXUSS3-C-10 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W31 | OEM-E9-43 | NEXUSS3-C-11 | 0.5 | no route | Throttle position (VTA1) | — | |
| W32 | OEM-E9-44 | NEXUSS3-C-12 | 0.5 | no route | Coolant temperature (THW) | — | |
| W33 | OEM-E10-23 | NEXUSS3-A-26 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W34 | OEM-E10-24 | NEXUSS3-A-9 | 0.5 | no route | EFI main relay control (M-REL) | — | |
| W35 | OEM-E9-10 | NEXUSS3-A-12 | 0.5 | no route | A/T shift solenoid 1 (S1) | — | |
| W36 | OEM-E9-35 | NEXUSS3-A-14 | 0.5 | no route | ISC stepper coil 1 (ISC1) | — | |
| W37 | OEM-E9-34 | NEXUSS3-A-15 | 0.5 | no route | ISC stepper coil 2 (ISC2) | — | |
| W38 | OEM-E9-9 | NEXUSS3-A-16 | 0.5 | no route | A/T shift solenoid 2 (S2) | — | |
| W39 | OEM-E9-33 | NEXUSS3-A-17 | 0.5 | no route | ISC stepper coil 3 (ISC3) | — | |
| W40 | OEM-E9-32 | NEXUSS3-C-33 | 0.5 | no route | ISC stepper coil 4 (ISC4) | — | |
| W41 | OEM-E10-22 | NEXUSS3-A-7 | 0.5 | no route | Fuel pump control (FPC) | — | |
| W42 | OEM-E10-5 | NEXUSS3-A-8 | 0.5 | no route | Cat-temp warning light (EGW) | — | |
| W43 | OEM-E9-47 | NEXUSS3-C-13 | 0.5 | no route | O2 sensor 2 (OX2, rear bank) | — | |
| W44 | OEM-E9-48 | NEXUSS3-C-14 | 0.5 | no route | O2 sensor 1 (OX1, front bank) | — | |
| W45 | OEM-E10-29 | NEXUSS3-C-15 | 0.5 | no route | Cat temperature sensor (CCO) | — | |
| W46 | OEM-E9-24 | NEXUSS3-C-16 | 0.5 | no route | A/T oil temperature (OIL) | — | |
| W47 | OEM-E9-45 | NEXUSS3-C-17 | 0.5 | no route | Intake air temperature (THA) | — | |
| W48 | OEM-E10-2 | NEXUSS3-C-6 | 0.5 | no route | No.1 speed sensor (SP1) | — | |
| W49 | OEM-E9-23 | NEXUSS3-C-7 | 0.5 | no route | No.2 speed sensor (SP2+) | — | |
| W50 | OEM-E9-3 | NEXUSS3-C-8 | 0.5 | no route | No.2 speed sensor return (SP2-) | — | |
| W51 | OEM-E10-21 | NEXUSS3-C-19 | 0.5 | no route | Fuel pump diagnostic (DI) | — | |
| W52 | OEM-E9-58 | NEXUSS3-C-20 | 0.5 | no route | Igniter verification (IGF) | — | |
| W53 | OEM-E10-12 | NEXUSS3-C-18 | 0.5 | no route | A/T overdrive disable 1 (OD1) | — | |
| W54 | OEM-E10-20 | NEXUSS3-C-27 | 0.5 | no route | Diagnostic test 1 (TE1) | — | |
| W55 | OEM-E10-19 | 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 (13)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | LOAD_UNKNOWN | NEXUSS3-A-26 | NEXUSS3-A-26 "ECR output" drives OEM-E10-23 A/C clutch relay (ACMG) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-E10-12 ↔ NEXUSS3-C-18 | OEM-E10-12 "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. |
| warn | NET_FAMILY | OEM-E10-19 ↔ NEXUSS3-C-28 | OEM-E10-19 "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-E10-20 ↔ NEXUSS3-C-27 | OEM-E10-20 "Diagnostic test 1 (TE1)" [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-E9-25 ↔ NEXUSS3-C-5 | OEM-E9-25 "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. |
| info | NET_FAMILY | OEM-E10-22 ↔ NEXUSS3-A-7 | OEM-E10-22 "Fuel pump control (FPC)" [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-E10-29 ↔ NEXUSS3-C-15 | OEM-E10-29 "Cat temperature sensor (CCO)" [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-E10-5 ↔ NEXUSS3-A-8 | OEM-E10-5 "Cat-temp warning light (EGW)" [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 | NET_FAMILY | OEM-E9-24 ↔ NEXUSS3-C-16 | OEM-E9-24 "A/T oil temperature (OIL)" [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-E9-44 ↔ NEXUSS3-C-12 | OEM-E9-44 "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-E9-45 ↔ NEXUSS3-C-17 | OEM-E9-45 "Intake air temperature (THA)" [temp_in] is wired to NEXUSS3-C-17 "AVI 8" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-E9-7 ↔ NEXUSS3-C-4 | OEM-E9-7 "Distributor ground (G-)" [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 | UNMAPPED | OEM | 20 optional OEM pins are not mapped: OEM-E10-10 A/T low-gear indicator (L); OEM-E10-15 Electrical load sense (ELS); OEM-E10-17 Diagnostic test terminal (TT); OEM-E10-18 A/T manual mode select (M); OEM-E10-25 A/T manual indicator (MI); OEM-E10-28 A/T overdrive disable 2 (OD2); OEM-E10-3 A/T kickdown switch (KD); OEM-E10-34 A/C request (A/C); OEM-E10-35 Power steering switch (PS); OEM-E10-4 Stop light switch (STP); OEM-E10-6 Check-engine light (W); OEM-E10-9 A/T 2nd-gear indicator (2); OEM-E9-28 Voltage feedback 2 (VF2); OEM-E9-29 Voltage feedback 1 (VF1); OEM-E9-39 ACIS intake VSV; OEM-E9-64 TPS idle switch (IDL1); OEM-E9-74 EVAP purge VSV; OEM-E9-76 Neutral/park switch (NSW); OEM-E9-77 Starter signal (STA); OEM-E9-8 A/T lock-up solenoid (S3) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-E10-33 | 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-E10 33: Battery constant (BATT): Haltech Nexus S3 has no battery-constant input; not needed - OEM-E10 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E9 39: ACIS intake VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E9 74: EVAP purge VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E9 8: A/T lock-up solenoid (S3): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E10 28: A/T overdrive disable 2 (OD2): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 9: A/T 2nd-gear indicator (2): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 10: A/T low-gear indicator (L): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 15: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 17: Diagnostic test terminal (TT): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 18: A/T manual mode select (M): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 25: A/T manual indicator (MI): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 3: A/T kickdown switch (KD): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 34: A/C request (A/C): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 35: Power steering switch (PS): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E10 4: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E9 64: TPS idle switch (IDL1): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E9 76: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E9 77: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-E9 29: Voltage feedback 1 (VF1): no free analog_out on Haltech Nexus S3 - OEM-E9 28: Voltage feedback 2 (VF2): 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 |
| 3 | community_copy | wilbo666: 2JZ-GE JZA80 Supra Engine Wiring (ECU pinout, E10/E9) | http://wilbo666.pbworks.com/w/page/41678224/2JZ-GE%20JZA80%20Supra%20Engine%20Wiring | — | — | — |