Lexus SC400 1998-2000 (1UZ-FE VVT-i) → Haltech Nexus S3 HT-213000 (auto)
Lexus SC400 1998-2000 (1UZ-FE VVT-i) — 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 | 64 wires · 10 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-E15-16 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E15-7 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E15-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | NEXUSS3-A-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | NEXUSS3-A-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E13-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E14-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-E13-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E13-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E13-2 | NEXUSS3-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E14-22 | NEXUSS3-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E14-23 | NEXUSS3-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E14-10 | NEXUSS3-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E13-16 | NEXUSS3-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E13-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E13-15 | NEXUSS3-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E13-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E14-18 | NEXUSS3-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E14-17 | NEXUSS3-C-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E14-11 | NEXUSS3-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E14-12 | NEXUSS3-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E14-13 | NEXUSS3-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E14-14 | NEXUSS3-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E14-15 | NEXUSS3-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E14-16 | NEXUSS3-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E14-25 | NEXUSS3-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E14-26 | NEXUSS3-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E13-5 | NEXUSS3-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E13-6 | NEXUSS3-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E14-1 | NEXUSS3-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E14-2 | NEXUSS3-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E14-3 | NEXUSS3-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E14-4 | NEXUSS3-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E14-5 | NEXUSS3-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E14-6 | NEXUSS3-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E14-7 | NEXUSS3-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E14-8 | NEXUSS3-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E15-9 | NEXUSS3-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E11-19 | NEXUSS3-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E14-20 | NEXUSS3-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E13-10 | NEXUSS3-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E13-13 | NEXUSS3-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E13-21 | NEXUSS3-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E13-20 | NEXUSS3-C-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E13-9 | NEXUSS3-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E13-14 | NEXUSS3-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E15-10 | NEXUSS3-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E15-5 | NEXUSS3-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E11-7 | NEXUSS3-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E11-8 | NEXUSS3-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E13-3 | NEXUSS3-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E13-4 | NEXUSS3-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E11-18 | NEXUSS3-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E11-27 | NEXUSS3-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E13-11 | NEXUSS3-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E13-12 | NEXUSS3-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E13-22 | NEXUSS3-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E14-27 | NEXUSS3-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-E14-28 | NEXUSS3-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-E11-17 | NEXUSS3-C-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 | NEXUSS3-A-10 | NEXUSS3-A-18 | open (OL) | power ground must not touch +12 V supply | |
| 2 | NEXUSS3-A-10 | NEXUSS3-C-25 | open (OL) | power ground must not touch 5 V sensor reference | |
| 3 | NEXUSS3-C-25 | NEXUSS3-A-18 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 4 | NEXUSS3-C-26 | NEXUSS3-A-18 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | NEXUSS3-C-26 | NEXUSS3-C-25 | open (OL) | sensor ground 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 | — | W32 | — | 0.5 | OEM-E13-5 | — | — | — |
| 10 | Battery ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | DPO 2 | — | W44 | — | 0.5 | OEM-E14-20 | — | — | — |
| 13 | Ignition switch input | — | W42 | — | 0.5 | OEM-E15-9 | — | — | — |
| 14 | DPO 3 | — | W52 | — | 0.5 | OEM-E15-5 | — | — | — |
| 15 | DPO 4 | — | W54 | — | 0.5 | OEM-E11-8 | — | — | — |
| 16 | DPO 5 | — | W55 | — | 0.5 | OEM-E13-3 | — | — | — |
| 17 | DPO 6 | — | W56 | — | 0.5 | OEM-E13-4 | — | — | — |
| 18 | +12V switched input | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 19 | HBO 1 | — | W41 | — | 0.5 | OEM-E14-8 | — | — | — |
| 2 | Injector 2 | — | W33 | — | 0.5 | OEM-E13-6 | — | — | — |
| 20 | HBO 2 | — | W40 | — | 0.5 | OEM-E14-7 | — | — | — |
| 21 | HBO 3 | — | — | — | — | — | — | — | — |
| 22 | HBO 4 | — | — | — | — | — | — | — | — |
| 23 | CAN 1 High | — | — | — | — | — | — | — | — |
| 24 | CAN 1 Low | — | — | — | — | — | — | — | — |
| 25 | +12V switched input | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | ECR output | — | W51 | — | 0.5 | OEM-E15-10 | — | — | — |
| 27 | Ignition 1 | — | W24 | — | 0.5 | OEM-E14-11 | — | — | — |
| 28 | Ignition 2 | — | W25 | — | 0.5 | OEM-E14-12 | — | — | — |
| 29 | Ignition 3 | — | W26 | — | 0.5 | OEM-E14-13 | — | — | — |
| 3 | Injector 3 | — | W34 | — | 0.5 | OEM-E14-1 | — | — | — |
| 30 | Ignition 4 | — | W27 | — | 0.5 | OEM-E14-14 | — | — | — |
| 31 | Ignition 5 | — | W28 | — | 0.5 | OEM-E14-15 | — | — | — |
| 32 | Ignition 6 | — | W29 | — | 0.5 | OEM-E14-16 | — | — | — |
| 33 | Ignition 7 | — | W30 | — | 0.5 | OEM-E14-25 | — | — | — |
| 34 | Ignition 8 | — | W31 | — | 0.5 | OEM-E14-26 | — | — | — |
| 4 | Injector 4 | — | W35 | — | 0.5 | OEM-E14-2 | — | — | — |
| 5 | Injector 5 | — | W36 | — | 0.5 | OEM-E14-3 | — | — | — |
| 6 | Injector 6 | — | W37 | — | 0.5 | OEM-E14-4 | — | — | — |
| 7 | Injector 7 | — | W38 | — | 0.5 | OEM-E14-5 | — | — | — |
| 8 | Injector 8 | — | W39 | — | 0.5 | OEM-E14-6 | — | — | — |
| 9 | DPO 1 | — | W43 | — | 0.5 | OEM-E11-19 | — | — | — |
NEXUSS3-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Trigger + | — | W15 | — | 0.5 | OEM-E14-23 | — | — | — |
| 10 | AVI 1 | — | W45 | — | 0.5 | OEM-E13-10 | — | — | — |
| 11 | AVI 2 | — | W46 | — | 0.5 | OEM-E13-13 | — | — | — |
| 12 | AVI 3 | — | W47 | — | 0.5 | OEM-E13-21 | — | — | — |
| 13 | AVI 4 | — | W48 | — | 0.5 | OEM-E13-20 | — | — | — |
| 14 | AVI 5 | — | W49 | — | 0.5 | OEM-E13-9 | — | — | — |
| 15 | AVI 6 | — | W50 | — | 0.5 | OEM-E13-14 | — | — | — |
| 16 | AVI 7 | — | W57 | — | 0.5 | OEM-E11-18 | — | — | — |
| 17 | AVI 8 | — | W58 | — | 0.5 | OEM-E11-27 | — | — | — |
| 18 | AVI 9 | — | W59 | — | 0.5 | OEM-E13-11 | — | — | — |
| 19 | SPI 5 | — | W64 | — | 0.5 | OEM-E11-17 | — | — | — |
| 2 | Trigger - | — | W14 | — | 0.5 | OEM-E14-22 | — | — | — |
| 20 | SPI 6 | — | — | — | — | — | — | — | — |
| 21 | CAN 2 High | — | — | — | — | — | — | — | — |
| 22 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 23 | Knock 1 | — | W22 | — | 0.5 | OEM-E14-18 | — | — | — |
| 24 | Knock 2 | — | W23 | — | 0.5 | OEM-E14-17 | — | — | — |
| 25 | +5V | — | W13 | — | 0.5 | OEM-E13-2 | — | — | — |
| 26 | Signal ground | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | AVI 10 | — | W60 | — | 0.5 | OEM-E13-12 | — | — | — |
| 28 | AVI 11 | — | W61 | — | 0.5 | OEM-E13-22 | — | — | — |
| 29 | WBI 1 Heater + | — | — | — | — | — | — | — | — |
| 3 | Home + | — | W16 | — | 0.5 | OEM-E14-10 | — | — | — |
| 30 | WBI 1 Input | — | — | — | — | — | — | — | — |
| 31 | WBI 1 Pump | — | — | — | — | — | — | — | — |
| 32 | WBI 1 Nernst | — | — | — | — | — | — | — | — |
| 33 | WBI 1 Heater - | — | W53 | — | 0.5 | OEM-E11-7 | — | — | — |
| 34 | WBI 1 Cal | — | — | — | — | — | — | — | — |
| 4 | Home - | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | SPI 1 | — | W18 | — | 0.5 | OEM-E13-16 | — | — | — |
| 6 | SPI 2 | — | W20 | — | 0.5 | OEM-E13-15 | — | — | — |
| 7 | SPI 3 | — | W62 | — | 0.5 | OEM-E14-27 | — | — | — |
| 8 | SPI 4 | — | W63 | — | 0.5 | OEM-E14-28 | — | — | — |
| 9 | +8V | — | — | — | — | — | — | — | — |
OEM-E11
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 17 | Starter signal (STA) | — | W64 | — | 0.5 | NEXUSS3-C-19 | — | — | — |
| 18 | O2 sensor signal (bank unconfirmed) | — | W57 | — | 0.5 | NEXUSS3-C-16 | — | — | — |
| 19 | VVT oil-control valve RH (OCR+) | — | W43 | — | 0.5 | NEXUSS3-A-9 | — | — | — |
| 27 | O2 sensor signal (bank unconfirmed) | — | W58 | — | 0.5 | NEXUSS3-C-17 | — | — | — |
| 28 | VVT oil-control valve RH (OCR−) | — | — | — | — | — | — | — | — |
| 5 | Diagnostic test (TC) | — | — | — | — | — | — | — | — |
| 7 | O2 sensor heater (bank unconfirmed) | — | W53 | — | 0.5 | NEXUSS3-C-33 | — | — | — |
| 8 | O2 sensor heater (bank unconfirmed) | — | W54 | — | 0.5 | NEXUSS3-A-15 | — | — | — |
OEM-E12
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 12 | Throttle magnetic clutch + (CL+) | — | — | — | — | — | — | — | — |
OEM-E13
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | MAF signal (VG) | — | W45 | — | 0.5 | NEXUSS3-C-10 | — | — | — |
| 11 | O2 sensor signal (bank unconfirmed) | — | W59 | — | 0.5 | NEXUSS3-C-18 | — | — | — |
| 12 | O2 sensor signal (bank unconfirmed) | — | W60 | — | 0.5 | NEXUSS3-C-27 | — | — | — |
| 13 | Throttle position sensor 1 (VTA) | — | W46 | — | 0.5 | NEXUSS3-C-11 | — | — | — |
| 14 | Engine coolant temp (THW) | — | W50 | — | 0.5 | NEXUSS3-C-15 | — | — | — |
| 15 | VVT position sensor RH (VVR+) | — | W20 | — | 0.5 | NEXUSS3-C-6 | — | — | — |
| 16 | VVT position sensor LH (VVL+) | — | W18 | — | 0.5 | NEXUSS3-C-5 | — | — | — |
| 17 | ECU ground (E1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | +5V sensor reference (VC) | — | W13 | — | 0.5 | NEXUSS3-C-25 | — | — | — |
| 20 | Throttle position sensor 2 (VTA2) | — | W48 | — | 0.5 | NEXUSS3-C-13 | — | — | — |
| 21 | Accelerator pedal position 1 (VPA) | — | W47 | — | 0.5 | NEXUSS3-C-12 | — | — | — |
| 22 | Intake air temp (THA) | — | W61 | — | 0.5 | NEXUSS3-C-28 | — | — | — |
| 23 | VVT position sensor RH (VVR−) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | VVT position sensor LH (VVL−) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | O2 sensor heater (bank unconfirmed) | — | W55 | — | 0.5 | NEXUSS3-A-16 | — | — | — |
| 4 | O2 sensor heater (bank unconfirmed) | — | W56 | — | 0.5 | NEXUSS3-A-17 | — | — | — |
| 5 | Injector 1 (cyl 1) | — | W32 | — | 0.5 | NEXUSS3-A-1 | — | — | — |
| 6 | Injector 2 (cyl 2) | — | W33 | — | 0.5 | NEXUSS3-A-2 | — | — | — |
| 8 | Throttle magnetic clutch − (CL−) | — | — | — | — | — | — | — | — |
| 9 | Accelerator pedal position 2 (VPA2) | — | W49 | — | 0.5 | NEXUSS3-C-14 | — | — | — |
OEM-E14
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (cyl 3) | — | W34 | — | 0.5 | NEXUSS3-A-3 | — | — | — |
| 10 | Camshaft position sensor (G2) | — | W16 | — | 0.5 | NEXUSS3-C-3 | — | — | — |
| 11 | Ignition coil 1 (IGT1) | — | W24 | — | 0.5 | NEXUSS3-A-27 | — | — | — |
| 12 | Ignition coil 2 (IGT2) | — | W25 | — | 0.5 | NEXUSS3-A-28 | — | — | — |
| 13 | Ignition coil 3 (IGT3) | — | W26 | — | 0.5 | NEXUSS3-A-29 | — | — | — |
| 14 | Ignition coil 4 (IGT4) | — | W27 | — | 0.5 | NEXUSS3-A-30 | — | — | — |
| 15 | Ignition coil 5 (IGT5) | — | W28 | — | 0.5 | NEXUSS3-A-31 | — | — | — |
| 16 | Ignition coil 6 (IGT6) | — | W29 | — | 0.5 | NEXUSS3-A-32 | — | — | — |
| 17 | Knock sensor RH (KNKR) | — | W23 | — | 0.5 | NEXUSS3-C-24 | — | — | — |
| 18 | Knock sensor LH (KNKL) | — | W22 | — | 0.5 | NEXUSS3-C-23 | — | — | — |
| 19 | VVT oil-control valve LH (OCV−) | — | — | — | — | — | — | — | — |
| 2 | Injector 4 (cyl 4) | — | W35 | — | 0.5 | NEXUSS3-A-4 | — | — | — |
| 20 | VVT oil-control valve LH (OCV+) | — | W44 | — | 0.5 | NEXUSS3-A-12 | — | — | — |
| 21 | Power/injector ground (E01) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position sensor (NE−) | — | W14 | — | 0.5 | NEXUSS3-C-2 | — | — | — |
| 23 | Crank position sensor (NE+) | — | W15 | — | 0.5 | NEXUSS3-C-1 | — | — | — |
| 25 | Ignition coil 7 (IGT7) | — | W30 | — | 0.5 | NEXUSS3-A-33 | — | — | — |
| 26 | Ignition coil 8 (IGT8) | — | W31 | — | 0.5 | NEXUSS3-A-34 | — | — | — |
| 27 | Ignition confirmation 1 (IGF1) | — | W62 | — | 0.5 | NEXUSS3-C-7 | — | — | — |
| 28 | Ignition confirmation 2 (IGF2) | — | W63 | — | 0.5 | NEXUSS3-C-8 | — | — | — |
| 29 | ACIS induction VSV | — | — | — | — | — | — | — | — |
| 3 | Injector 5 (cyl 5) | — | W36 | — | 0.5 | NEXUSS3-A-5 | — | — | — |
| 4 | Injector 6 (cyl 6) | — | W37 | — | 0.5 | NEXUSS3-A-6 | — | — | — |
| 5 | Injector 7 (cyl 7) | — | W38 | — | 0.5 | NEXUSS3-A-7 | — | — | — |
| 6 | Injector 8 (cyl 8) | — | W39 | — | 0.5 | NEXUSS3-A-8 | — | — | — |
| 7 | Throttle motor − (M−) | — | W40 | — | 0.5 | NEXUSS3-A-20 | — | — | — |
| 8 | Throttle motor + (M+) | — | W41 | — | 0.5 | NEXUSS3-A-19 | — | — | — |
OEM-E15
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (+12V) | — | — | — | — | — | — | — | — |
| 10 | EFI main relay control (MREL) | — | W51 | — | 0.5 | NEXUSS3-A-26 | — | — | — |
| 11 | OBD-II / DLC3 data (SIL) | — | — | — | — | — | — | — | — |
| 16 | ECM power (EFI relay +B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 5 | Fuel pump relay control (FC) | — | W52 | — | 0.5 | NEXUSS3-A-14 | — | — | — |
| 6 | Check engine light (W) | — | — | — | — | — | — | — | — |
| 7 | ECM power feed (+BM) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 8 | ECM power (EFI relay +B1) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Ignition switch (+12V) | — | W42 | — | 0.5 | NEXUSS3-A-13 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W10 | — | 0.5 | OEM-E13-18 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-E13-19 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | NEXUSS3-C-26 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | NEXUSS3-C-4 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-E13-24 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-E13-23 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E15-16 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E15-7 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-E15-8 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | NEXUSS3-A-18 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | NEXUSS3-A-25 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-E13-17 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E14-21 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | NEXUSS3-A-10 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | NEXUSS3-A-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E11-17 | Starter signal (STA) | digital_in | NEXUSS3-C-19 | SPI 5 | digital_in | corroborated | |
| OEM-E11-18 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | NEXUSS3-C-16 | AVI 7 | analog_in | corroborated | |
| OEM-E11-19 | VVT oil-control valve RH (OCR+) | low_side_out | NEXUSS3-A-9 | DPO 1 | low_side_out | corroborated | |
| OEM-E11-27 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | NEXUSS3-C-17 | AVI 8 | analog_in | corroborated | |
| OEM-E11-28 | VVT oil-control valve RH (OCR−) | low_side_out | — | — | — | corroborated | |
| OEM-E11-5 | Diagnostic test (TC) | serial | — | — | — | corroborated | |
| OEM-E11-7 | O2 sensor heater (bank unconfirmed) | low_side_out | NEXUSS3-C-33 | WBI 1 Heater - | low_side_out | corroborated | |
| OEM-E11-8 | O2 sensor heater (bank unconfirmed) | low_side_out | NEXUSS3-A-15 | DPO 4 | low_side_out | corroborated | |
| OEM-E12-12 | Throttle magnetic clutch + (CL+) | low_side_out | — | — | — | corroborated | |
| OEM-E13-10 | MAF signal (VG) | analog_in | NEXUSS3-C-10 | AVI 1 | analog_in | corroborated | |
| OEM-E13-11 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | NEXUSS3-C-18 | AVI 9 | analog_in | corroborated | |
| OEM-E13-12 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | NEXUSS3-C-27 | AVI 10 | analog_in | corroborated | |
| OEM-E13-13 | Throttle position sensor 1 (VTA) | analog_in | NEXUSS3-C-11 | AVI 2 | analog_in | corroborated | |
| OEM-E13-14 | Engine coolant temp (THW) | temp_in | NEXUSS3-C-15 | AVI 6 | analog_in | corroborated | |
| OEM-E13-15 | VVT position sensor RH (VVR+) | trigger_in | NEXUSS3-C-6 | SPI 2 | digital_in | corroborated | |
| OEM-E13-16 | VVT position sensor LH (VVL+) | trigger_in | NEXUSS3-C-5 | SPI 1 | digital_in | corroborated | |
| OEM-E13-17 | ECU ground (E1) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-E13-18 | Sensor ground (E2) | sensor_ground | NEXUSS3-C-26 + NEXUSS3-C-4 | Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-E13-19 | MAF ground (EVG) | sensor_ground | NEXUSS3-C-26 + NEXUSS3-C-4 | Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-E13-2 | +5V sensor reference (VC) | vref | NEXUSS3-C-25 | +5V | vref | corroborated | |
| OEM-E13-20 | Throttle position sensor 2 (VTA2) | analog_in | NEXUSS3-C-13 | AVI 4 | analog_in | corroborated | |
| OEM-E13-21 | Accelerator pedal position 1 (VPA) | analog_in | NEXUSS3-C-12 | AVI 3 | analog_in | corroborated | |
| OEM-E13-22 | Intake air temp (THA) | temp_in | NEXUSS3-C-28 | AVI 11 | analog_in | corroborated | |
| OEM-E13-23 | VVT position sensor RH (VVR−) | trigger_in | NEXUSS3-C-26 + NEXUSS3-C-4 | Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-E13-24 | VVT position sensor LH (VVL−) | trigger_in | NEXUSS3-C-26 + NEXUSS3-C-4 | Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-E13-3 | O2 sensor heater (bank unconfirmed) | low_side_out | NEXUSS3-A-16 | DPO 5 | low_side_out | corroborated | |
| OEM-E13-4 | O2 sensor heater (bank unconfirmed) | low_side_out | NEXUSS3-A-17 | DPO 6 | low_side_out | corroborated | |
| OEM-E13-5 | Injector 1 (cyl 1) | injector_out | NEXUSS3-A-1 | Injector 1 | injector_out | corroborated | |
| OEM-E13-6 | Injector 2 (cyl 2) | injector_out | NEXUSS3-A-2 | Injector 2 | injector_out | corroborated | |
| OEM-E13-8 | Throttle magnetic clutch − (CL−) | low_side_out | — | — | — | corroborated | |
| OEM-E13-9 | Accelerator pedal position 2 (VPA2) | analog_in | NEXUSS3-C-14 | AVI 5 | analog_in | corroborated | |
| OEM-E14-1 | Injector 3 (cyl 3) | injector_out | NEXUSS3-A-3 | Injector 3 | injector_out | corroborated | |
| OEM-E14-10 | Camshaft position sensor (G2) | trigger_in | NEXUSS3-C-3 | Home + | trigger_in | corroborated | |
| OEM-E14-11 | Ignition coil 1 (IGT1) | ignition_out | NEXUSS3-A-27 | Ignition 1 | ignition_out | corroborated | |
| OEM-E14-12 | Ignition coil 2 (IGT2) | ignition_out | NEXUSS3-A-28 | Ignition 2 | ignition_out | corroborated | |
| OEM-E14-13 | Ignition coil 3 (IGT3) | ignition_out | NEXUSS3-A-29 | Ignition 3 | ignition_out | corroborated | |
| OEM-E14-14 | Ignition coil 4 (IGT4) | ignition_out | NEXUSS3-A-30 | Ignition 4 | ignition_out | corroborated | |
| OEM-E14-15 | Ignition coil 5 (IGT5) | ignition_out | NEXUSS3-A-31 | Ignition 5 | ignition_out | corroborated | |
| OEM-E14-16 | Ignition coil 6 (IGT6) | ignition_out | NEXUSS3-A-32 | Ignition 6 | ignition_out | corroborated | |
| OEM-E14-17 | Knock sensor RH (KNKR) | knock_in | NEXUSS3-C-24 | Knock 2 | knock_in | corroborated | |
| OEM-E14-18 | Knock sensor LH (KNKL) | knock_in | NEXUSS3-C-23 | Knock 1 | knock_in | corroborated | |
| OEM-E14-19 | VVT oil-control valve LH (OCV−) | low_side_out | — | — | — | corroborated | |
| OEM-E14-2 | Injector 4 (cyl 4) | injector_out | NEXUSS3-A-4 | Injector 4 | injector_out | corroborated | |
| OEM-E14-20 | VVT oil-control valve LH (OCV+) | low_side_out | NEXUSS3-A-12 | DPO 2 | low_side_out | corroborated | |
| OEM-E14-21 | Power/injector ground (E01) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-E14-22 | Crank position sensor (NE−) | trigger_in | NEXUSS3-C-2 | Trigger - | trigger_in | corroborated | |
| OEM-E14-23 | Crank position sensor (NE+) | trigger_in | NEXUSS3-C-1 | Trigger + | trigger_in | corroborated | |
| OEM-E14-25 | Ignition coil 7 (IGT7) | ignition_out | NEXUSS3-A-33 | Ignition 7 | ignition_out | corroborated | |
| OEM-E14-26 | Ignition coil 8 (IGT8) | ignition_out | NEXUSS3-A-34 | Ignition 8 | ignition_out | corroborated | |
| OEM-E14-27 | Ignition confirmation 1 (IGF1) | digital_in | NEXUSS3-C-7 | SPI 3 | digital_in | corroborated | |
| OEM-E14-28 | Ignition confirmation 2 (IGF2) | digital_in | NEXUSS3-C-8 | SPI 4 | digital_in | corroborated | |
| OEM-E14-29 | ACIS induction VSV | low_side_out | — | — | — | corroborated | |
| OEM-E14-3 | Injector 5 (cyl 5) | injector_out | NEXUSS3-A-5 | Injector 5 | injector_out | corroborated | |
| OEM-E14-4 | Injector 6 (cyl 6) | injector_out | NEXUSS3-A-6 | Injector 6 | injector_out | corroborated | |
| OEM-E14-5 | Injector 7 (cyl 7) | injector_out | NEXUSS3-A-7 | Injector 7 | injector_out | corroborated | |
| OEM-E14-6 | Injector 8 (cyl 8) | injector_out | NEXUSS3-A-8 | Injector 8 | injector_out | corroborated | |
| OEM-E14-7 | Throttle motor − (M−) | hbridge_out | NEXUSS3-A-20 | HBO 2 | hbridge_out | corroborated | |
| OEM-E14-8 | Throttle motor + (M+) | hbridge_out | NEXUSS3-A-19 | HBO 1 | hbridge_out | corroborated | |
| OEM-E15-1 | Battery constant (+12V) | power_in | — | — | — | corroborated | |
| OEM-E15-10 | EFI main relay control (MREL) | low_side_out | NEXUSS3-A-26 | ECR output | low_side_out | corroborated | |
| OEM-E15-11 | OBD-II / DLC3 data (SIL) | serial | — | — | — | corroborated | |
| OEM-E15-16 | ECM power (EFI relay +B) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | corroborated | |
| OEM-E15-5 | Fuel pump relay control (FC) | low_side_out | NEXUSS3-A-14 | DPO 3 | low_side_out | corroborated | |
| OEM-E15-6 | Check engine light (W) | low_side_out | — | — | — | corroborated | |
| OEM-E15-7 | ECM power feed (+BM) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | corroborated | |
| OEM-E15-8 | ECM power (EFI relay +B1) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | corroborated | |
| OEM-E15-9 | Ignition switch (+12V) | digital_in | NEXUSS3-A-13 | Ignition switch input | digital_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E15-16 | SP-14V-1 | 0.85 | no route | ECM power (EFI relay +B) | — | |
| W2 | OEM-E15-7 | SP-14V-1 | 0.85 | no route | ECM power feed (+BM) | — | |
| W3 | OEM-E15-8 | SP-14V-1 | 0.85 | no route | ECM power (EFI relay +B1) | — | |
| W4 | SP-14V-1 | NEXUSS3-A-18 | 0.85 | no route | +12V switched input | — | |
| W5 | SP-14V-1 | NEXUSS3-A-25 | 0.85 | no route | +12V switched input | — | |
| W6 | OEM-E13-17 | SP-GND-1 | 0.85 | no route | ECU ground (E1) | — | |
| W7 | OEM-E14-21 | SP-GND-1 | 0.85 | no route | Power/injector ground (E01) | — | |
| W8 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | no route | Battery ground | — | |
| W9 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | no route | Battery ground | — | |
| W10 | OEM-E13-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W11 | OEM-E13-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W12 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | no route | Signal ground | — | |
| W13 | OEM-E13-2 | NEXUSS3-C-25 | 0.5 | no route | +5V sensor reference (VC) | — | |
| W14 | OEM-E14-22 | NEXUSS3-C-2 | 0.5 | no route | Crank position sensor (NE−) | — | |
| W15 | OEM-E14-23 | NEXUSS3-C-1 | 0.5 | no route | Crank position sensor (NE+) | — | |
| W16 | OEM-E14-10 | NEXUSS3-C-3 | 0.5 | no route | Camshaft position sensor (G2) | — | |
| W17 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | no route | Home - | — | |
| W18 | OEM-E13-16 | NEXUSS3-C-5 | 0.5 | no route | VVT position sensor LH (VVL+) | — | |
| W19 | OEM-E13-24 | SP-0V-1 | 0.5 | no route | VVT position sensor LH (VVL−) | — | |
| W20 | OEM-E13-15 | NEXUSS3-C-6 | 0.5 | no route | VVT position sensor RH (VVR+) | — | |
| W21 | OEM-E13-23 | SP-0V-1 | 0.5 | no route | VVT position sensor RH (VVR−) | — | |
| W22 | OEM-E14-18 | NEXUSS3-C-23 | 0.5 | no route | Knock sensor LH (KNKL) | — | |
| W23 | OEM-E14-17 | NEXUSS3-C-24 | 0.5 | no route | Knock sensor RH (KNKR) | — | |
| W24 | OEM-E14-11 | NEXUSS3-A-27 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W25 | OEM-E14-12 | NEXUSS3-A-28 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W26 | OEM-E14-13 | NEXUSS3-A-29 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W27 | OEM-E14-14 | NEXUSS3-A-30 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W28 | OEM-E14-15 | NEXUSS3-A-31 | 0.5 | no route | Ignition coil 5 (IGT5) | — | |
| W29 | OEM-E14-16 | NEXUSS3-A-32 | 0.5 | no route | Ignition coil 6 (IGT6) | — | |
| W30 | OEM-E14-25 | NEXUSS3-A-33 | 0.5 | no route | Ignition coil 7 (IGT7) | — | |
| W31 | OEM-E14-26 | NEXUSS3-A-34 | 0.5 | no route | Ignition coil 8 (IGT8) | — | |
| W32 | OEM-E13-5 | NEXUSS3-A-1 | 0.5 | no route | Injector 1 (cyl 1) | — | |
| W33 | OEM-E13-6 | NEXUSS3-A-2 | 0.5 | no route | Injector 2 (cyl 2) | — | |
| W34 | OEM-E14-1 | NEXUSS3-A-3 | 0.5 | no route | Injector 3 (cyl 3) | — | |
| W35 | OEM-E14-2 | NEXUSS3-A-4 | 0.5 | no route | Injector 4 (cyl 4) | — | |
| W36 | OEM-E14-3 | NEXUSS3-A-5 | 0.5 | no route | Injector 5 (cyl 5) | — | |
| W37 | OEM-E14-4 | NEXUSS3-A-6 | 0.5 | no route | Injector 6 (cyl 6) | — | |
| W38 | OEM-E14-5 | NEXUSS3-A-7 | 0.5 | no route | Injector 7 (cyl 7) | — | |
| W39 | OEM-E14-6 | NEXUSS3-A-8 | 0.5 | no route | Injector 8 (cyl 8) | — | |
| W40 | OEM-E14-7 | NEXUSS3-A-20 | 0.5 | no route | Throttle motor − (M−) | — | |
| W41 | OEM-E14-8 | NEXUSS3-A-19 | 0.5 | no route | Throttle motor + (M+) | — | |
| W42 | OEM-E15-9 | NEXUSS3-A-13 | 0.5 | no route | Ignition switch (+12V) | — | |
| W43 | OEM-E11-19 | NEXUSS3-A-9 | 0.5 | no route | VVT oil-control valve RH (OCR+) | — | |
| W44 | OEM-E14-20 | NEXUSS3-A-12 | 0.5 | no route | VVT oil-control valve LH (OCV+) | — | |
| W45 | OEM-E13-10 | NEXUSS3-C-10 | 0.5 | no route | MAF signal (VG) | — | |
| W46 | OEM-E13-13 | NEXUSS3-C-11 | 0.5 | no route | Throttle position sensor 1 (VTA) | — | |
| W47 | OEM-E13-21 | NEXUSS3-C-12 | 0.5 | no route | Accelerator pedal position 1 (VPA) | — | |
| W48 | OEM-E13-20 | NEXUSS3-C-13 | 0.5 | no route | Throttle position sensor 2 (VTA2) | — | |
| W49 | OEM-E13-9 | NEXUSS3-C-14 | 0.5 | no route | Accelerator pedal position 2 (VPA2) | — | |
| W50 | OEM-E13-14 | NEXUSS3-C-15 | 0.5 | no route | Engine coolant temp (THW) | — | |
| W51 | OEM-E15-10 | NEXUSS3-A-26 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W52 | OEM-E15-5 | NEXUSS3-A-14 | 0.5 | no route | Fuel pump relay control (FC) | — | |
| W53 | OEM-E11-7 | NEXUSS3-C-33 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W54 | OEM-E11-8 | NEXUSS3-A-15 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W55 | OEM-E13-3 | NEXUSS3-A-16 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W56 | OEM-E13-4 | NEXUSS3-A-17 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W57 | OEM-E11-18 | NEXUSS3-C-16 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W58 | OEM-E11-27 | NEXUSS3-C-17 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W59 | OEM-E13-11 | NEXUSS3-C-18 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W60 | OEM-E13-12 | NEXUSS3-C-27 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W61 | OEM-E13-22 | NEXUSS3-C-28 | 0.5 | no route | Intake air temp (THA) | — | |
| W62 | OEM-E14-27 | NEXUSS3-C-7 | 0.5 | no route | Ignition confirmation 1 (IGF1) | — | |
| W63 | OEM-E14-28 | NEXUSS3-C-8 | 0.5 | no route | Ignition confirmation 2 (IGF2) | — | |
| W64 | OEM-E11-17 | NEXUSS3-C-19 | 0.5 | no route | Starter signal (STA) | — |
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 (9)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | DBW_MOTOR_CURRENT | NEXUSS3-A-19 | Cannot confirm Nexus S3 can drive the throttle motor: NEXUSS3-A-19 "HBO 1" is rated 8.0 A peak, but the motor stall current at OEM-E14-8 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_CURRENT | NEXUSS3-A-20 | Cannot confirm Nexus S3 can drive the throttle motor: NEXUSS3-A-20 "HBO 2" is rated 8.0 A peak, but the motor stall current at OEM-E14-7 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | LOAD_UNKNOWN | NEXUSS3-A-26 | NEXUSS3-A-26 "ECR output" drives OEM-E15-10 EFI main relay control (MREL) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-E13-15 ↔ NEXUSS3-C-6 | OEM-E13-15 "VVT position sensor RH (VVR+)" [trigger_in] is wired to NEXUSS3-C-6 "SPI 2" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-E13-16 ↔ NEXUSS3-C-5 | OEM-E13-16 "VVT position sensor LH (VVL+)" [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-E13-14 ↔ NEXUSS3-C-15 | OEM-E13-14 "Engine coolant temp (THW)" [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-E13-19 ↔ OEM-E13-24 | OEM-E13-19 "MAF ground (EVG)" [sensor_ground] is wired to OEM-E13-24 "VVT position sensor LH (VVL−)" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-E13-22 ↔ NEXUSS3-C-28 | OEM-E13-22 "Intake air temp (THA)" [temp_in] is wired to NEXUSS3-C-28 "AVI 11" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 8 optional OEM pins are not mapped: OEM-E11-28 VVT oil-control valve RH (OCR−); OEM-E11-5 Diagnostic test (TC); OEM-E12-12 Throttle magnetic clutch + (CL+); OEM-E13-8 Throttle magnetic clutch − (CL−); OEM-E14-19 VVT oil-control valve LH (OCV−); OEM-E14-29 ACIS induction VSV; OEM-E15-11 OBD-II / DLC3 data (SIL); OEM-E15-6 Check engine light (W) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-E15-1 | 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-E15 1: Battery constant (+12V): Haltech Nexus S3 has no battery-constant input; not needed - OEM-E11 28: VVT oil-control valve RH (OCR−): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E12 12: Throttle magnetic clutch + (CL+): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E13 8: Throttle magnetic clutch − (CL−): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E14 19: VVT oil-control valve LH (OCV−): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E14 29: ACIS induction VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E15 6: Check engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-E15 11: OBD-II / DLC3 data (SIL): no free k_line on Haltech Nexus S3 - OEM-E11 5: Diagnostic test (TC): no free k_line 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 |
| 4 | vendor_doc | Toyota 1UZ-FE (VVT-i) engine manual M1UZ | http://www.epicmarine.com/docs/M1UZrm.pdf | — | — | — |
| 3 | community_copy | 1998 Lexus LS400 ECM terminal voltage chart (RM717U translation) | https://www.renrendoc.com/p-59096353.html | — | — | — |