RSX Type-S 2002-04 (K20A2) → Haltech Nexus S3 HT-213000 (auto)
RSX Type-S 2002-04 (K20A2) — Haltech — Nexus S3
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-08
Before you start
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 67 wires · 9 connectors · 4 part lines |
| Tools | 715131-1 · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 316836-1 |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | NEXUSS3-A-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | NEXUSS3-A-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-E-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-5V1-1 | NEXUSS3-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-7 | NEXUSS3-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-25 | NEXUSS3-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-26 | NEXUSS3-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-9 | NEXUSS3-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-30 | NEXUSS3-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-29 | NEXUSS3-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-28 | NEXUSS3-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-27 | NEXUSS3-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-5 | NEXUSS3-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-4 | NEXUSS3-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B-3 | NEXUSS3-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-2 | NEXUSS3-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E-9 | NEXUSS3-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E-7 | NEXUSS3-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-6 | NEXUSS3-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E-1 | NEXUSS3-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E-18 | NEXUSS3-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E-8 | NEXUSS3-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E-6 | NEXUSS3-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-1 | NEXUSS3-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-12 | NEXUSS3-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-B-15 | NEXUSS3-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B-1 | NEXUSS3-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-18 | NEXUSS3-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B-21 | NEXUSS3-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B-23 | NEXUSS3-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B-7 | NEXUSS3-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E-21 | NEXUSS3-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E-31 | NEXUSS3-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-6 | NEXUSS3-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-16 | NEXUSS3-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-22 | NEXUSS3-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-19 | NEXUSS3-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-15 | NEXUSS3-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E-2 | NEXUSS3-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-B-8 | NEXUSS3-C-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-B-17 | NEXUSS3-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-B-13 | NEXUSS3-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E-14 | NEXUSS3-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E-15 | NEXUSS3-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-A-18 | NEXUSS3-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-B-10 | NEXUSS3-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-B-9 | NEXUSS3-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-E-16 | NEXUSS3-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-E-20 | NEXUSS3-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-E-22 | NEXUSS3-C-18 | 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-A-10 | NEXUSS3-C-25 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | NEXUSS3-A-10 | NEXUSS3-C-29 | open (OL) | power ground must not touch +12 V supply | |
| 5 | NEXUSS3-A-18 | NEXUSS3-C-25 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 6 | NEXUSS3-C-2 | NEXUSS3-C-25 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 7 | NEXUSS3-C-2 | NEXUSS3-C-29 | open (OL) | sensor ground must not touch +12 V supply | |
| 8 | NEXUSS3-C-25 | NEXUSS3-C-29 | open (OL) | 5 V sensor reference must not touch +12 V supply |
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-B-5 | — | — | — |
| 10 | Battery ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | DPO 2 | — | W37 | — | 0.5 | OEM-E-1 | — | — | — |
| 13 | Ignition switch input | — | W34 | — | 0.5 | OEM-E-9 | — | — | — |
| 14 | DPO 3 | — | W38 | — | 0.5 | OEM-E-18 | — | — | — |
| 15 | DPO 4 | — | W39 | — | 0.5 | OEM-E-8 | — | — | — |
| 16 | DPO 5 | — | W41 | — | 0.5 | OEM-A-1 | — | — | — |
| 17 | DPO 6 | — | W42 | — | 0.5 | OEM-A-12 | — | — | — |
| 18 | +12V switched input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 19 | HBO 1 | — | W47 | — | 0.5 | OEM-B-23 | — | — | — |
| 2 | Injector 2 | — | W31 | — | 0.5 | OEM-B-4 | — | — | — |
| 20 | HBO 2 | — | W48 | — | 0.5 | OEM-B-7 | — | — | — |
| 21 | HBO 3 | — | W49 | — | 0.5 | OEM-E-21 | — | — | — |
| 22 | HBO 4 | — | W50 | — | 0.5 | OEM-E-31 | — | — | — |
| 23 | CAN 1 High | — | — | — | — | — | — | — | — |
| 24 | CAN 1 Low | — | — | — | — | — | — | — | — |
| 25 | +12V switched input | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | ECR output | — | W35 | — | 0.5 | OEM-E-7 | — | — | — |
| 27 | Ignition 1 | — | W26 | — | 0.5 | OEM-A-30 | — | — | — |
| 28 | Ignition 2 | — | W27 | — | 0.5 | OEM-A-29 | — | — | — |
| 29 | Ignition 3 | — | W28 | — | 0.5 | OEM-A-28 | — | — | — |
| 3 | Injector 3 | — | W32 | — | 0.5 | OEM-B-3 | — | — | — |
| 30 | Ignition 4 | — | W29 | — | 0.5 | OEM-A-27 | — | — | — |
| 31 | Ignition 5 | — | — | — | — | — | — | — | — |
| 32 | Ignition 6 | — | — | — | — | — | — | — | — |
| 33 | Ignition 7 | — | — | — | — | — | — | — | — |
| 34 | Ignition 8 | — | — | — | — | — | — | — | — |
| 4 | Injector 4 | — | W33 | — | 0.5 | OEM-B-2 | — | — | — |
| 5 | Injector 5 | — | W43 | — | 0.5 | OEM-B-15 | — | — | — |
| 6 | Injector 6 | — | W44 | — | 0.5 | OEM-B-1 | — | — | — |
| 7 | Injector 7 | — | W45 | — | 0.5 | OEM-B-18 | — | — | — |
| 8 | Injector 8 | — | W46 | — | 0.5 | OEM-B-21 | — | — | — |
| 9 | DPO 1 | — | W36 | — | 0.5 | OEM-B-6 | — | — | — |
NEXUSS3-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Trigger + | — | W20 | — | 0.5 | OEM-A-7 | — | — | — |
| 10 | AVI 1 | — | W54 | — | 0.5 | OEM-A-19 | — | — | — |
| 11 | AVI 2 | — | W55 | — | 0.5 | OEM-A-15 | — | — | — |
| 12 | AVI 3 | — | W56 | — | 0.5 | OEM-E-2 | — | — | — |
| 13 | AVI 4 | — | W57 | — | 0.5 | OEM-B-8 | — | — | — |
| 14 | AVI 5 | — | W58 | — | 0.5 | OEM-B-17 | — | — | — |
| 15 | AVI 6 | — | W59 | — | 0.5 | OEM-B-13 | — | — | — |
| 16 | AVI 7 | — | W60 | — | 0.5 | OEM-E-14 | — | — | — |
| 17 | AVI 8 | — | W61 | — | 0.5 | OEM-E-15 | — | — | — |
| 18 | AVI 9 | — | W67 | — | 0.5 | OEM-E-22 | — | — | — |
| 19 | SPI 5 | — | W65 | — | 0.5 | OEM-E-16 | — | — | — |
| 2 | Trigger - | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | SPI 6 | — | W66 | — | 0.5 | OEM-E-20 | — | — | — |
| 21 | CAN 2 High | — | — | — | — | — | — | — | — |
| 22 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 23 | Knock 1 | — | W25 | — | 0.5 | OEM-A-9 | — | — | — |
| 24 | Knock 2 | — | — | — | — | — | — | — | — |
| 25 | +5V | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 26 | Signal ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | AVI 10 | — | — | — | — | — | — | — | — |
| 28 | AVI 11 | — | — | — | — | — | — | — | — |
| 29 | WBI 1 Heater + | — | W53 | — | 0.5 | OEM-A-22 | — | — | — |
| 3 | Home + | — | W22 | — | 0.5 | OEM-A-25 | — | — | — |
| 30 | WBI 1 Input | — | — | — | — | — | — | — | — |
| 31 | WBI 1 Pump | — | W51 | — | 0.5 | OEM-A-6 | — | — | — |
| 32 | WBI 1 Nernst | — | W52 | — | 0.5 | OEM-A-16 | — | — | — |
| 33 | WBI 1 Heater - | — | W40 | — | 0.5 | OEM-E-6 | — | — | — |
| 34 | WBI 1 Cal | — | — | — | — | — | — | — | — |
| 4 | Home - | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | SPI 1 | — | W24 | — | 0.5 | OEM-A-26 | — | — | — |
| 6 | SPI 2 | — | W62 | — | 0.5 | OEM-A-18 | — | — | — |
| 7 | SPI 3 | — | W63 | — | 0.5 | OEM-B-10 | — | — | — |
| 8 | SPI 4 | — | W64 | — | 0.5 | OEM-B-9 | — | — | — |
| 9 | +8V | — | — | — | — | — | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/F sensor heater control (AFSHTC) | — | W41 | — | 0.5 | NEXUSS3-A-16 | — | — | — |
| 2 | Ignition power 2 (IGP2) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 (IGP1) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 (PG2) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 (PG1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | A/F sensor + (AFS+, wideband Ip) | — | W51 | — | 0.5 | NEXUSS3-C-31 | — | — | — |
| 7 | Crank position sensor (CKP) | — | W20 | — | 0.5 | NEXUSS3-C-1 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Knock sensor (KS) | — | W25 | — | 0.5 | NEXUSS3-C-23 | — | — | — |
| 10 | Sensor ground 2 (SG2) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Sensor ground 1 (SG1) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Idle air control valve (IACV) | — | W42 | — | 0.5 | NEXUSS3-A-17 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | Throttle position sensor (TPS) | — | W55 | — | 0.5 | NEXUSS3-C-11 | — | — | — |
| 16 | A/F sensor - (AFS-, wideband Vs) | — | W52 | — | 0.5 | NEXUSS3-C-32 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor (VSS, M/T) | — | W62 | — | 0.5 | NEXUSS3-C-6 | — | — | — |
| 19 | Manifold absolute pressure (MAP) | — | W54 | — | 0.5 | NEXUSS3-C-10 | — | — | — |
| 20 | Sensor 5V supply 2 (VCC2) | — | W16 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor 5V supply 1 (VCC1) | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | A/F sensor heater supply (AFSHTC+) | — | W53 | — | 0.5 | NEXUSS3-C-29 | — | — | — |
| 23 | Logic ground 2 (LG2) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Logic ground 1 (LG1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Camshaft position A (CMP A) | — | W22 | — | 0.5 | NEXUSS3-C-3 | — | — | — |
| 26 | Camshaft position B (CMP B) | — | W24 | — | 0.5 | NEXUSS3-C-5 | — | — | — |
| 27 | Ignition coil 4 (IGPLS4) | — | W29 | — | 0.5 | NEXUSS3-A-30 | — | — | — |
| 28 | Ignition coil 3 (IGPLS3) | — | W28 | — | 0.5 | NEXUSS3-A-29 | — | — | — |
| 29 | Ignition coil 2 (IGPLS2) | — | W27 | — | 0.5 | NEXUSS3-A-28 | — | — | — |
| 30 | Ignition coil 1 (IGPLS1) | — | W26 | — | 0.5 | NEXUSS3-A-27 | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTC oil control solenoid (+) | — | W44 | — | 0.5 | NEXUSS3-A-6 | — | — | — |
| 2 | Injector 4 (INJ4) | — | W33 | — | 0.5 | NEXUSS3-A-4 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W32 | — | 0.5 | NEXUSS3-A-3 | — | — | — |
| 4 | Injector 2 (INJ2) | — | W31 | — | 0.5 | NEXUSS3-A-2 | — | — | — |
| 5 | Injector 1 (INJ1) | — | W30 | — | 0.5 | NEXUSS3-A-1 | — | — | — |
| 6 | Radiator fan control (FANC) | — | W36 | — | 0.5 | NEXUSS3-A-9 | — | — | — |
| 7 | Reverse lockout solenoid (RVS, Type-S) | — | W48 | — | 0.5 | NEXUSS3-A-20 | — | — | — |
| 8 | Coolant temp sensor (ECT) | — | W57 | — | 0.5 | NEXUSS3-C-13 | — | — | — |
| 9 | VTEC oil pressure switch (VTPSW) | — | W64 | — | 0.5 | NEXUSS3-C-8 | — | — | — |
| 10 | Alternator L signal (ALTL) | — | W63 | — | 0.5 | NEXUSS3-C-7 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal (ALTF) | — | W59 | — | 0.5 | NEXUSS3-C-15 | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | VTEC solenoid (VTS) | — | W43 | — | 0.5 | NEXUSS3-A-5 | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor (IAT) | — | W58 | — | 0.5 | NEXUSS3-C-14 | — | — | — |
| 18 | Alternator control (ALTC) | — | W45 | — | 0.5 | NEXUSS3-A-7 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve (PCS) | — | W46 | — | 0.5 | NEXUSS3-A-8 | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | VTC oil control solenoid (-) | — | W47 | — | 0.5 | NEXUSS3-A-19 | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Immobilizer fuel pump relay (IMO FPR) | — | W37 | — | 0.5 | NEXUSS3-A-12 | — | — | — |
| 2 | Secondary heated O2 sensor (SHO2S) | — | W56 | — | 0.5 | NEXUSS3-C-12 | — | — | — |
| 3 | Logic ground 3 (LG3) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 (SG3) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor 5V supply 3 (VCC3) | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Secondary O2 heater control (SO2SHTC) | — | W40 | — | 0.5 | NEXUSS3-C-33 | — | — | — |
| 7 | Main relay control (MRLY) | — | W35 | — | 0.5 | NEXUSS3-A-26 | — | — | — |
| 8 | A/F sensor heater relay control (AFSHTCR) | — | W39 | — | 0.5 | NEXUSS3-A-15 | — | — | — |
| 9 | Ignition switch signal (IG1) | — | W34 | — | 0.5 | NEXUSS3-A-13 | — | — | — |
| 10 | — | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor (FTP) | — | W60 | — | 0.5 | NEXUSS3-C-16 | — | — | — |
| 15 | Electrical load detector (ELD) | — | W61 | — | 0.5 | NEXUSS3-C-17 | — | — | — |
| 16 | Power steering pressure switch (PSPSW) | — | W65 | — | 0.5 | NEXUSS3-C-19 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | A/C clutch relay (ACC) | — | W38 | — | 0.5 | NEXUSS3-A-14 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | Brake switch / interlock (2WBS) | — | W66 | — | 0.5 | NEXUSS3-C-20 | — | — | — |
| 21 | Evap vent shut valve (VSV) | — | W49 | — | 0.5 | NEXUSS3-A-21 | — | — | — |
| 22 | Brake switch (BKSW) | — | W67 | — | 0.5 | NEXUSS3-C-18 | — | — | — |
| 23 | K-line (diagnostic) | — | — | — | — | — | — | — | — |
| 24 | Multiplex communication (SEFMJ) | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — |
| 26 | Engine speed pulse / tacho (NEP) | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code (IMOCD) | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | Service check signal (SCS) | — | — | — | — | — | — | — | — |
| 30 | Write enable signal (WEN) | — | — | — | — | — | — | — | — |
| 31 | Malfunction indicator lamp (MIL) | — | W50 | — | 0.5 | NEXUSS3-A-22 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W23 | — | 0.5 | NEXUSS3-C-4 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A-10 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-A-11 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | NEXUSS3-C-26 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | NEXUSS3-C-2 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | NEXUSS3-A-18 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | NEXUSS3-A-25 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W16 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-A-21 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-E-5 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | NEXUSS3-C-25 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | NEXUSS3-A-10 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | NEXUSS3-A-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | A/F sensor heater control (AFSHTC) | low_side_out | NEXUSS3-A-16 | DPO 5 | low_side_out | single_source | |
| OEM-A-10 | Sensor ground 2 (SG2) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-A-11 | Sensor ground 1 (SG1) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-A-12 | Idle air control valve (IACV) | low_side_out | NEXUSS3-A-17 | DPO 6 | low_side_out | corroborated | |
| OEM-A-15 | Throttle position sensor (TPS) | analog_in | NEXUSS3-C-11 | AVI 2 | analog_in | corroborated | |
| OEM-A-16 | A/F sensor - (AFS-, wideband Vs) | wb_vs | NEXUSS3-C-32 | WBI 1 Nernst | wb_vs | single_source | |
| OEM-A-18 | Vehicle speed sensor (VSS, M/T) | digital_in | NEXUSS3-C-6 | SPI 2 | digital_in | corroborated | |
| OEM-A-19 | Manifold absolute pressure (MAP) | analog_in | NEXUSS3-C-10 | AVI 1 | analog_in | corroborated | |
| OEM-A-2 | Ignition power 2 (IGP2) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | corroborated | |
| OEM-A-20 | Sensor 5V supply 2 (VCC2) | vref | NEXUSS3-C-25 | +5V | vref | corroborated | |
| OEM-A-21 | Sensor 5V supply 1 (VCC1) | vref | NEXUSS3-C-25 | +5V | vref | corroborated | |
| OEM-A-22 | A/F sensor heater supply (AFSHTC+) | power_out | NEXUSS3-C-29 | WBI 1 Heater + | power_out | single_source | |
| OEM-A-23 | Logic ground 2 (LG2) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-A-24 | Logic ground 1 (LG1) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-A-25 | Camshaft position A (CMP A) | trigger_in | NEXUSS3-C-3 | Home + | trigger_in | single_source | |
| OEM-A-26 | Camshaft position B (CMP B) | trigger_in | NEXUSS3-C-5 | SPI 1 | digital_in | single_source | |
| OEM-A-27 | Ignition coil 4 (IGPLS4) | ignition_out | NEXUSS3-A-30 | Ignition 4 | ignition_out | corroborated | |
| OEM-A-28 | Ignition coil 3 (IGPLS3) | ignition_out | NEXUSS3-A-29 | Ignition 3 | ignition_out | corroborated | |
| OEM-A-29 | Ignition coil 2 (IGPLS2) | ignition_out | NEXUSS3-A-28 | Ignition 2 | ignition_out | corroborated | |
| OEM-A-3 | Ignition power 1 (IGP1) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | corroborated | |
| OEM-A-30 | Ignition coil 1 (IGPLS1) | ignition_out | NEXUSS3-A-27 | Ignition 1 | ignition_out | corroborated | |
| OEM-A-4 | Power ground 2 (PG2) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-A-5 | Power ground 1 (PG1) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-A-6 | A/F sensor + (AFS+, wideband Ip) | wb_ip | NEXUSS3-C-31 | WBI 1 Pump | wb_ip | single_source | |
| OEM-A-7 | Crank position sensor (CKP) | trigger_in | NEXUSS3-C-1 | Trigger + | trigger_in | corroborated | |
| OEM-A-9 | Knock sensor (KS) | knock_in | NEXUSS3-C-23 | Knock 1 | knock_in | corroborated | |
| OEM-B-1 | VTC oil control solenoid (+) | low_side_out | NEXUSS3-A-6 | Injector 6 | injector_out | corroborated | |
| OEM-B-10 | Alternator L signal (ALTL) | digital_in | NEXUSS3-C-7 | SPI 3 | digital_in | single_source | |
| OEM-B-13 | Alternator FR signal (ALTF) | analog_in | NEXUSS3-C-15 | AVI 6 | analog_in | single_source | |
| OEM-B-15 | VTEC solenoid (VTS) | low_side_out | NEXUSS3-A-5 | Injector 5 | injector_out | single_source | |
| OEM-B-17 | Intake air temp sensor (IAT) | temp_in | NEXUSS3-C-14 | AVI 5 | analog_in | corroborated | |
| OEM-B-18 | Alternator control (ALTC) | low_side_out | NEXUSS3-A-7 | Injector 7 | injector_out | corroborated | |
| OEM-B-2 | Injector 4 (INJ4) | injector_out | NEXUSS3-A-4 | Injector 4 | injector_out | corroborated | |
| OEM-B-21 | Evap canister purge valve (PCS) | low_side_out | NEXUSS3-A-8 | Injector 8 | injector_out | corroborated | |
| OEM-B-23 | VTC oil control solenoid (-) | low_side_out | NEXUSS3-A-19 | HBO 1 | hbridge_out | corroborated | |
| OEM-B-3 | Injector 3 (INJ3) | injector_out | NEXUSS3-A-3 | Injector 3 | injector_out | corroborated | |
| OEM-B-4 | Injector 2 (INJ2) | injector_out | NEXUSS3-A-2 | Injector 2 | injector_out | corroborated | |
| OEM-B-5 | Injector 1 (INJ1) | injector_out | NEXUSS3-A-1 | Injector 1 | injector_out | corroborated | |
| OEM-B-6 | Radiator fan control (FANC) | low_side_out | NEXUSS3-A-9 | DPO 1 | low_side_out | corroborated | |
| OEM-B-7 | Reverse lockout solenoid (RVS, Type-S) | low_side_out | NEXUSS3-A-20 | HBO 2 | hbridge_out | corroborated | |
| OEM-B-8 | Coolant temp sensor (ECT) | temp_in | NEXUSS3-C-13 | AVI 4 | analog_in | corroborated | |
| OEM-B-9 | VTEC oil pressure switch (VTPSW) | digital_in | NEXUSS3-C-8 | SPI 4 | digital_in | corroborated | |
| OEM-E-1 | Immobilizer fuel pump relay (IMO FPR) | low_side_out | NEXUSS3-A-12 | DPO 2 | low_side_out | corroborated | |
| OEM-E-14 | Fuel tank pressure sensor (FTP) | analog_in | NEXUSS3-C-16 | AVI 7 | analog_in | corroborated | |
| OEM-E-15 | Electrical load detector (ELD) | analog_in | NEXUSS3-C-17 | AVI 8 | analog_in | corroborated | |
| OEM-E-16 | Power steering pressure switch (PSPSW) | digital_in | NEXUSS3-C-19 | SPI 5 | digital_in | corroborated | |
| OEM-E-18 | A/C clutch relay (ACC) | low_side_out | NEXUSS3-A-14 | DPO 3 | low_side_out | corroborated | |
| OEM-E-2 | Secondary heated O2 sensor (SHO2S) | lambda_nb_in | NEXUSS3-C-12 | AVI 3 | analog_in | corroborated | |
| OEM-E-20 | Brake switch / interlock (2WBS) | digital_in | NEXUSS3-C-20 | SPI 6 | digital_in | single_source | |
| OEM-E-21 | Evap vent shut valve (VSV) | low_side_out | NEXUSS3-A-21 | HBO 3 | hbridge_out | corroborated | |
| OEM-E-22 | Brake switch (BKSW) | digital_in | NEXUSS3-C-18 | AVI 9 | analog_in | corroborated | |
| OEM-E-23 | K-line (diagnostic) | serial | — | — | — | single_source | |
| OEM-E-24 | Multiplex communication (SEFMJ) | serial | — | — | — | corroborated | |
| OEM-E-26 | Engine speed pulse / tacho (NEP) | tacho_out | — | — | — | corroborated | |
| OEM-E-27 | Immobilizer code (IMOCD) | — | — | — | — | single_source | |
| OEM-E-29 | Service check signal (SCS) | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 (LG3) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-E-30 | Write enable signal (WEN) | — | — | — | — | single_source | |
| OEM-E-31 | Malfunction indicator lamp (MIL) | low_side_out | NEXUSS3-A-22 | HBO 4 | hbridge_out | corroborated | |
| OEM-E-4 | Sensor ground 3 (SG3) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | corroborated | |
| OEM-E-5 | Sensor 5V supply 3 (VCC3) | vref | NEXUSS3-C-25 | +5V | vref | corroborated | |
| OEM-E-6 | Secondary O2 heater control (SO2SHTC) | low_side_out | NEXUSS3-C-33 | WBI 1 Heater - | low_side_out | corroborated | |
| OEM-E-7 | Main relay control (MRLY) | low_side_out | NEXUSS3-A-26 | ECR output | low_side_out | corroborated | |
| OEM-E-8 | A/F sensor heater relay control (AFSHTCR) | low_side_out | NEXUSS3-A-15 | DPO 4 | low_side_out | corroborated | |
| OEM-E-9 | Ignition switch signal (IG1) | digital_in | NEXUSS3-A-13 | Ignition switch input | digital_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | no route | Ignition power 2 (IGP2) | — | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | no route | Ignition power 1 (IGP1) | — | |
| W3 | SP-14V-1 | 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-A-23 | SP-GND-1 | 0.85 | no route | Logic ground 2 (LG2) | — | |
| W6 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Logic ground 1 (LG1) | — | |
| W7 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 (PG2) | — | |
| W8 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 (PG1) | — | |
| W9 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 (LG3) | — | |
| W10 | SP-GND-1 | NEXUSS3-A-10 | 0.85 | no route | Battery ground | — | |
| W11 | SP-GND-1 | NEXUSS3-A-11 | 0.85 | no route | Battery ground | — | |
| W12 | OEM-A-10 | SP-0V-1 | 0.5 | no route | Sensor ground 2 (SG2) | — | |
| W13 | OEM-A-11 | SP-0V-1 | 0.5 | no route | Sensor ground 1 (SG1) | — | |
| W14 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 (SG3) | — | |
| W15 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | no route | Signal ground | — | |
| W16 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 2 (VCC2) | — | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 1 (VCC1) | — | |
| W18 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 3 (VCC3) | — | |
| W19 | SP-5V1-1 | NEXUSS3-C-25 | 0.5 | no route | +5V | — | |
| W20 | OEM-A-7 | NEXUSS3-C-1 | 0.5 | no route | Crank position sensor (CKP) | — | |
| W21 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | no route | Trigger - | — | |
| W22 | OEM-A-25 | NEXUSS3-C-3 | 0.5 | no route | Camshaft position A (CMP A) | — | |
| W23 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | no route | Home - | — | |
| W24 | OEM-A-26 | NEXUSS3-C-5 | 0.5 | no route | Camshaft position B (CMP B) | — | |
| W25 | OEM-A-9 | NEXUSS3-C-23 | 0.5 | no route | Knock sensor (KS) | — | |
| W26 | OEM-A-30 | NEXUSS3-A-27 | 0.5 | no route | Ignition coil 1 (IGPLS1) | — | |
| W27 | OEM-A-29 | NEXUSS3-A-28 | 0.5 | no route | Ignition coil 2 (IGPLS2) | — | |
| W28 | OEM-A-28 | NEXUSS3-A-29 | 0.5 | no route | Ignition coil 3 (IGPLS3) | — | |
| W29 | OEM-A-27 | NEXUSS3-A-30 | 0.5 | no route | Ignition coil 4 (IGPLS4) | — | |
| W30 | OEM-B-5 | NEXUSS3-A-1 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W31 | OEM-B-4 | NEXUSS3-A-2 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W32 | OEM-B-3 | NEXUSS3-A-3 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W33 | OEM-B-2 | NEXUSS3-A-4 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W34 | OEM-E-9 | NEXUSS3-A-13 | 0.5 | no route | Ignition switch signal (IG1) | — | |
| W35 | OEM-E-7 | NEXUSS3-A-26 | 0.5 | no route | Main relay control (MRLY) | — | |
| W36 | OEM-B-6 | NEXUSS3-A-9 | 0.5 | no route | Radiator fan control (FANC) | — | |
| W37 | OEM-E-1 | NEXUSS3-A-12 | 0.5 | no route | Immobilizer fuel pump relay (IMO FPR) | — | |
| W38 | OEM-E-18 | NEXUSS3-A-14 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W39 | OEM-E-8 | NEXUSS3-A-15 | 0.5 | no route | A/F sensor heater relay control (AFSHTCR) | — | |
| W40 | OEM-E-6 | NEXUSS3-C-33 | 0.5 | no route | Secondary O2 heater control (SO2SHTC) | — | |
| W41 | OEM-A-1 | NEXUSS3-A-16 | 0.5 | no route | A/F sensor heater control (AFSHTC) | — | |
| W42 | OEM-A-12 | NEXUSS3-A-17 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W43 | OEM-B-15 | NEXUSS3-A-5 | 0.5 | no route | VTEC solenoid (VTS) | — | |
| W44 | OEM-B-1 | NEXUSS3-A-6 | 0.5 | no route | VTC oil control solenoid (+) | — | |
| W45 | OEM-B-18 | NEXUSS3-A-7 | 0.5 | no route | Alternator control (ALTC) | — | |
| W46 | OEM-B-21 | NEXUSS3-A-8 | 0.5 | no route | Evap canister purge valve (PCS) | — | |
| W47 | OEM-B-23 | NEXUSS3-A-19 | 0.5 | no route | VTC oil control solenoid (-) | — | |
| W48 | OEM-B-7 | NEXUSS3-A-20 | 0.5 | no route | Reverse lockout solenoid (RVS, Type-S) | — | |
| W49 | OEM-E-21 | NEXUSS3-A-21 | 0.5 | no route | Evap vent shut valve (VSV) | — | |
| W50 | OEM-E-31 | NEXUSS3-A-22 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W51 | OEM-A-6 | NEXUSS3-C-31 | 0.5 | no route | A/F sensor + (AFS+, wideband Ip) | — | |
| W52 | OEM-A-16 | NEXUSS3-C-32 | 0.5 | no route | A/F sensor - (AFS-, wideband Vs) | — | |
| W53 | OEM-A-22 | NEXUSS3-C-29 | 0.5 | no route | A/F sensor heater supply (AFSHTC+) | — | |
| W54 | OEM-A-19 | NEXUSS3-C-10 | 0.5 | no route | Manifold absolute pressure (MAP) | — | |
| W55 | OEM-A-15 | NEXUSS3-C-11 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W56 | OEM-E-2 | NEXUSS3-C-12 | 0.5 | no route | Secondary heated O2 sensor (SHO2S) | — | |
| W57 | OEM-B-8 | NEXUSS3-C-13 | 0.5 | no route | Coolant temp sensor (ECT) | — | |
| W58 | OEM-B-17 | NEXUSS3-C-14 | 0.5 | no route | Intake air temp sensor (IAT) | — | |
| W59 | OEM-B-13 | NEXUSS3-C-15 | 0.5 | no route | Alternator FR signal (ALTF) | — | |
| W60 | OEM-E-14 | NEXUSS3-C-16 | 0.5 | no route | Fuel tank pressure sensor (FTP) | — | |
| W61 | OEM-E-15 | NEXUSS3-C-17 | 0.5 | no route | Electrical load detector (ELD) | — | |
| W62 | OEM-A-18 | NEXUSS3-C-6 | 0.5 | no route | Vehicle speed sensor (VSS, M/T) | — | |
| W63 | OEM-B-10 | NEXUSS3-C-7 | 0.5 | no route | Alternator L signal (ALTL) | — | |
| W64 | OEM-B-9 | NEXUSS3-C-8 | 0.5 | no route | VTEC oil pressure switch (VTPSW) | — | |
| W65 | OEM-E-16 | NEXUSS3-C-19 | 0.5 | no route | Power steering pressure switch (PSPSW) | — | |
| W66 | OEM-E-20 | NEXUSS3-C-20 | 0.5 | no route | Brake switch / interlock (2WBS) | — | |
| W67 | OEM-E-22 | NEXUSS3-C-18 | 0.5 | no route | Brake switch (BKSW) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 1318682-6 | TE | K-series ECU harness plug A (040-3 HD plug assy, 31P) | 1.000 | ea |
| connector | 353029-1 | TE | K-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P) | 1.000 | ea |
| connector | 353826-1 | TE | K-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P) | 1.000 | ea |
| terminal | 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 59.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (19)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | DATASET_GAP | RSX ECU A | 5 of 31 cavities on RSX ECU A have no pin data (8,13,14,17,31). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU B | 8 of 24 cavities on RSX ECU B have no pin data (11,12,14,16,19,20,22,24). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU E | 8 of 31 cavities on RSX ECU E have no pin data (10,11,12,13,17,19,25,28). Anything there is invisible to these checks. |
| warn | LOAD_UNKNOWN | NEXUSS3-A-26 | NEXUSS3-A-26 "ECR output" drives OEM-E-7 Main relay control (MRLY) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-A-26 ↔ NEXUSS3-C-5 | OEM-A-26 "Camshaft position B (CMP B)" [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-B-23 ↔ NEXUSS3-A-19 | OEM-B-23 "VTC oil control solenoid (-)" [low_side_out] is wired to NEXUSS3-A-19 "HBO 1" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-B-7 ↔ NEXUSS3-A-20 | OEM-B-7 "Reverse lockout solenoid (RVS, Type-S)" [low_side_out] is wired to NEXUSS3-A-20 "HBO 2" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-E-21 ↔ NEXUSS3-A-21 | OEM-E-21 "Evap vent shut valve (VSV)" [low_side_out] is wired to NEXUSS3-A-21 "HBO 3" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-E-22 ↔ NEXUSS3-C-18 | OEM-E-22 "Brake switch (BKSW)" [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-E-31 ↔ NEXUSS3-A-22 | OEM-E-31 "Malfunction indicator lamp (MIL)" [low_side_out] is wired to NEXUSS3-A-22 "HBO 4" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | SUPPLY_GROUP | NEXUSS3-C-25 + OEM-A-20 + OEM-A-21 + OEM-E-5 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-A-20 [k_vcc2], OEM-A-21 [k_vcc1], OEM-E-5 [k_vcc3]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all. |
| info | NET_FAMILY | OEM-B-1 ↔ NEXUSS3-A-6 | OEM-B-1 "VTC oil control solenoid (+)" [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-B-15 ↔ NEXUSS3-A-5 | OEM-B-15 "VTEC solenoid (VTS)" [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-B-17 ↔ NEXUSS3-C-14 | OEM-B-17 "Intake air temp sensor (IAT)" [temp_in] is wired to NEXUSS3-C-14 "AVI 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-B-18 ↔ NEXUSS3-A-7 | OEM-B-18 "Alternator control (ALTC)" [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-B-21 ↔ NEXUSS3-A-8 | OEM-B-21 "Evap canister purge valve (PCS)" [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-B-8 ↔ NEXUSS3-C-13 | OEM-B-8 "Coolant temp sensor (ECT)" [temp_in] is wired to NEXUSS3-C-13 "AVI 4" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-E-4 ↔ NEXUSS3-C-2 | OEM-E-4 "Sensor ground 3 (SG3)" [sensor_ground] is wired to NEXUSS3-C-2 "Trigger -" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 6 optional OEM pins are not mapped: OEM-E-23 K-line (diagnostic); OEM-E-24 Multiplex communication (SEFMJ); OEM-E-26 Engine speed pulse / tacho (NEP); OEM-E-27 Immobilizer code (IMOCD); OEM-E-29 Service check signal (SCS); OEM-E-30 Write enable signal (WEN) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-E 26: Engine speed pulse / tacho (NEP): no free tacho/frequency_out/low_side/ls_hs on Haltech Nexus S3 - OEM-E 23: K-line (diagnostic): no free k_line on Haltech Nexus S3 - OEM-E 24: Multiplex communication (SEFMJ): no free k_line on Haltech Nexus S3 - OEM-E 27: Immobilizer code (IMOCD): not classified in the library; wire by hand - OEM-E 29: Service check signal (SCS): not classified in the library; wire by hand - OEM-E 30: Write enable signal (WEN): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | 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 | Link: CIVICLink K20X (HC20X) DC5 installation manual | https://linkecu.com/documentation/237-4000%20DC5.pdf | archive | 2026-10-05 | 8a1a71301571 |
| 3 | forum | FFS TechNet: K-series 02-06 RSX ECU pin diagram (Helm) | https://ff-squad.com/technet2/k-series-02-06-rsx-ecu-pin-diagram/ | archive | 2026-10-05 | b2b85002666e |