Chevrolet Corvette C6 2006-07 (LS2) → Haltech Nexus S3 HT-213000 (auto)
Chevrolet Corvette C6 2006-07 (LS2) — Haltech — Nexus S3
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 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 | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 2: read the Findings page before cutting any wire |
| Size of the job | 85 wires · 8 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-X1-19 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-X1-47 | 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-X1-73 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-X2-78 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-X2-79 | 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-X1-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-X1-13 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-X1-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-X1-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-X1-31 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-X1-38 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-X1-49 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-X2-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-X2-34 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-X2-35 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-X2-52 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-X2-53 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-X2-56 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-X2-60 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-X2-66 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-X2-69 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-X1-33 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-X1-34 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-X1-36 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-X1-56 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-X2-2 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-X2-3 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-X2-41 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-X2-43 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-X2-44 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | SP-5V1-1 | NEXUSS3-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-X2-68 | NEXUSS3-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-X2-64 | NEXUSS3-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-X2-26 | NEXUSS3-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-X2-27 | NEXUSS3-C-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-X2-70 | NEXUSS3-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-X2-73 | NEXUSS3-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-X2-77 | NEXUSS3-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-X2-76 | NEXUSS3-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-X2-75 | NEXUSS3-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-X2-74 | NEXUSS3-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-X2-72 | NEXUSS3-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-X2-71 | NEXUSS3-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-X2-20 | NEXUSS3-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-X2-37 | NEXUSS3-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-X2-38 | NEXUSS3-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-X2-39 | NEXUSS3-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-X2-18 | NEXUSS3-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-X2-19 | NEXUSS3-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-X2-40 | NEXUSS3-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-X2-17 | NEXUSS3-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-X1-50 | NEXUSS3-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-X1-59 | NEXUSS3-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-X1-41 | NEXUSS3-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-X2-58 | NEXUSS3-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-X1-29 | NEXUSS3-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-X2-65 | NEXUSS3-C-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-X1-32 | NEXUSS3-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-X2-63 | NEXUSS3-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-X2-21 | NEXUSS3-C-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-X1-17 | NEXUSS3-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-X1-51 | NEXUSS3-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-X1-52 | NEXUSS3-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-X1-58 | NEXUSS3-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-X1-63 | NEXUSS3-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-X1-64 | NEXUSS3-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-X1-10 | NEXUSS3-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W75 | OEM-X1-69 | NEXUSS3-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W76 | OEM-X2-57 | NEXUSS3-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W77 | OEM-X2-59 | NEXUSS3-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W78 | OEM-X1-71 | NEXUSS3-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W79 | OEM-X1-72 | NEXUSS3-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W80 | OEM-X1-2 | NEXUSS3-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W81 | OEM-X1-1 | NEXUSS3-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W82 | OEM-X1-3 | NEXUSS3-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W83 | OEM-X1-9 | NEXUSS3-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W84 | OEM-X1-28 | NEXUSS3-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W85 | OEM-X1-27 | NEXUSS3-A-24 | 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-C-25 | NEXUSS3-A-10 | open (OL) | 5 V sensor reference must not touch power ground | |
| 3 | NEXUSS3-A-18 | NEXUSS3-C-25 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 4 | NEXUSS3-C-2 | NEXUSS3-A-18 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | NEXUSS3-C-2 | 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 | — | W51 | — | 0.5 | OEM-X2-20 | — | — | — |
| 10 | Battery ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | DPO 2 | — | W68 | — | 0.5 | OEM-X1-17 | — | — | — |
| 13 | Ignition switch input | — | — | — | — | — | — | — | — |
| 14 | DPO 3 | — | W69 | — | 0.5 | OEM-X1-51 | — | — | — |
| 15 | DPO 4 | — | W70 | — | 0.5 | OEM-X1-52 | — | — | — |
| 16 | DPO 5 | — | W71 | — | 0.5 | OEM-X1-58 | — | — | — |
| 17 | DPO 6 | — | W72 | — | 0.5 | OEM-X1-63 | — | — | — |
| 18 | +12V switched input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 19 | HBO 1 | — | — | — | — | — | — | — | — |
| 2 | Injector 2 | — | W52 | — | 0.5 | OEM-X2-37 | — | — | — |
| 20 | HBO 2 | — | — | — | — | — | — | — | — |
| 21 | HBO 3 | — | — | — | — | — | — | — | — |
| 22 | HBO 4 | — | — | — | — | — | — | — | — |
| 23 | CAN 1 High | — | W84 | — | 0.5 | OEM-X1-28 | — | — | — |
| 24 | CAN 1 Low | — | W85 | — | 0.5 | OEM-X1-27 | — | — | — |
| 25 | +12V switched input | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | ECR output | — | W59 | — | 0.5 | OEM-X1-50 | — | — | — |
| 27 | Ignition 1 | — | W43 | — | 0.5 | OEM-X2-70 | — | — | — |
| 28 | Ignition 2 | — | W44 | — | 0.5 | OEM-X2-73 | — | — | — |
| 29 | Ignition 3 | — | W45 | — | 0.5 | OEM-X2-77 | — | — | — |
| 3 | Injector 3 | — | W53 | — | 0.5 | OEM-X2-38 | — | — | — |
| 30 | Ignition 4 | — | W46 | — | 0.5 | OEM-X2-76 | — | — | — |
| 31 | Ignition 5 | — | W47 | — | 0.5 | OEM-X2-75 | — | — | — |
| 32 | Ignition 6 | — | W48 | — | 0.5 | OEM-X2-74 | — | — | — |
| 33 | Ignition 7 | — | W49 | — | 0.5 | OEM-X2-72 | — | — | — |
| 34 | Ignition 8 | — | W50 | — | 0.5 | OEM-X2-71 | — | — | — |
| 4 | Injector 4 | — | W54 | — | 0.5 | OEM-X2-39 | — | — | — |
| 5 | Injector 5 | — | W55 | — | 0.5 | OEM-X2-18 | — | — | — |
| 6 | Injector 6 | — | W56 | — | 0.5 | OEM-X2-19 | — | — | — |
| 7 | Injector 7 | — | W57 | — | 0.5 | OEM-X2-40 | — | — | — |
| 8 | Injector 8 | — | W58 | — | 0.5 | OEM-X2-17 | — | — | — |
| 9 | DPO 1 | — | W60 | — | 0.5 | OEM-X1-59 | — | — | — |
NEXUSS3-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Trigger + | — | W37 | — | 0.5 | OEM-X2-68 | — | — | — |
| 10 | AVI 1 | — | W61 | — | 0.5 | OEM-X1-41 | — | — | — |
| 11 | AVI 2 | — | W62 | — | 0.5 | OEM-X2-58 | — | — | — |
| 12 | AVI 3 | — | W63 | — | 0.5 | OEM-X1-29 | — | — | — |
| 13 | AVI 4 | — | W64 | — | 0.5 | OEM-X2-65 | — | — | — |
| 14 | AVI 5 | — | W65 | — | 0.5 | OEM-X1-32 | — | — | — |
| 15 | AVI 6 | — | W66 | — | 0.5 | OEM-X2-63 | — | — | — |
| 16 | AVI 7 | — | W67 | — | 0.5 | OEM-X2-21 | — | — | — |
| 17 | AVI 8 | — | W74 | — | 0.5 | OEM-X1-10 | — | — | — |
| 18 | AVI 9 | — | W75 | — | 0.5 | OEM-X1-69 | — | — | — |
| 19 | SPI 5 | — | W82 | — | 0.5 | OEM-X1-3 | — | — | — |
| 2 | Trigger - | — | W38 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | SPI 6 | — | W83 | — | 0.5 | OEM-X1-9 | — | — | — |
| 21 | CAN 2 High | — | — | — | — | — | — | — | — |
| 22 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 23 | Knock 1 | — | W41 | — | 0.5 | OEM-X2-26 | — | — | — |
| 24 | Knock 2 | — | W42 | — | 0.5 | OEM-X2-27 | — | — | — |
| 25 | +5V | — | W36 | — | 0.5 | SP-5V1-1 | — | — | — |
| 26 | Signal ground | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | AVI 10 | — | W76 | — | 0.5 | OEM-X2-57 | — | — | — |
| 28 | AVI 11 | — | W77 | — | 0.5 | OEM-X2-59 | — | — | — |
| 29 | WBI 1 Heater + | — | — | — | — | — | — | — | — |
| 3 | Home + | — | W39 | — | 0.5 | OEM-X2-64 | — | — | — |
| 30 | WBI 1 Input | — | — | — | — | — | — | — | — |
| 31 | WBI 1 Pump | — | — | — | — | — | — | — | — |
| 32 | WBI 1 Nernst | — | — | — | — | — | — | — | — |
| 33 | WBI 1 Heater - | — | W73 | — | 0.5 | OEM-X1-64 | — | — | — |
| 34 | WBI 1 Cal | — | — | — | — | — | — | — | — |
| 4 | Home - | — | W40 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | SPI 1 | — | W78 | — | 0.5 | OEM-X1-71 | — | — | — |
| 6 | SPI 2 | — | W79 | — | 0.5 | OEM-X1-72 | — | — | — |
| 7 | SPI 3 | — | W80 | — | 0.5 | OEM-X1-2 | — | — | — |
| 8 | SPI 4 | — | W81 | — | 0.5 | OEM-X1-1 | — | — | — |
| 9 | +8V | — | — | — | — | — | — | — | — |
OEM-X1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Park/Neutral signal (1786) | — | W81 | — | 0.5 | NEXUSS3-C-8 | — | — | — |
| 10 | HO2S signal, bank 1 sensor 2 (post-cat) | — | W74 | — | 0.5 | NEXUSS3-C-17 | — | — | — |
| 11 | HO2S low reference, bank 1 sensor 2 | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | A/C refrigerant pressure signal | — | — | — | — | — | — | — | — |
| 13 | A/C refrigerant pressure sensor low reference (5514) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Fuel level sensor signal, primary (1589) | — | — | — | — | — | — | — | — |
| 17 | High speed cooling fan relay | — | W68 | — | 0.5 | NEXUSS3-A-12 | — | — | — |
| 18 | Accessory wakeup serial data (5985) | — | — | — | — | — | — | — | — |
| 19 | Ignition 1 voltage (key hot) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | 4WD low signal (1694) | — | W80 | — | 0.5 | NEXUSS3-C-7 | — | — | — |
| 20 | Battery positive voltage (batt hot) | — | — | — | — | — | — | — | — |
| 23 | APP sensor low reference | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Fuel tank pressure signal | — | — | — | — | — | — | — | — |
| 27 | High-speed GMLAN serial data bus - (2501) | — | W85 | — | 0.5 | NEXUSS3-A-24 | — | — | — |
| 28 | High-speed GMLAN serial data bus + (2500) | — | W84 | — | 0.5 | NEXUSS3-A-23 | — | — | — |
| 29 | Accelerator pedal position (APP) sensor 1 signal | — | W63 | — | 0.5 | NEXUSS3-C-12 | — | — | — |
| 3 | Axle switch signal (1695) | — | W82 | — | 0.5 | NEXUSS3-C-19 | — | — | — |
| 30 | APP sensor low reference | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Fuel tank pressure sensor low reference (6049) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 32 | Accelerator pedal position (APP) sensor 2 signal | — | W65 | — | 0.5 | NEXUSS3-C-14 | — | — | — |
| 33 | 5V reference (fuel tank pressure) | — | W27 | — | 0.5 | SP-5V1-1 | — | — | — |
| 34 | 5V reference (A/C pressure) | — | W28 | — | 0.5 | SP-5V1-1 | — | — | — |
| 36 | 5V reference (APP sensor) | — | W29 | — | 0.5 | SP-5V1-1 | — | — | — |
| 37 | Intake air temperature (IAT) signal | — | — | — | — | — | — | — | — |
| 38 | Intake air temperature (IAT) low reference | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 41 | Mass air flow (MAF) signal | — | W61 | — | 0.5 | NEXUSS3-C-10 | — | — | — |
| 47 | Ignition 1 voltage (key hot) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 48 | Tachometer output | — | — | — | — | — | — | — | — |
| 49 | HO2S low reference, bank 2 sensor 2 | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 50 | Fuel pump relay control (primary) | — | W59 | — | 0.5 | NEXUSS3-A-26 | — | — | — |
| 51 | Fuel pump relay control (secondary) | — | W69 | — | 0.5 | NEXUSS3-A-14 | — | — | — |
| 52 | Starter enable relay control | — | W70 | — | 0.5 | NEXUSS3-A-15 | — | — | — |
| 56 | 5V reference (APP sensor) | — | W30 | — | 0.5 | SP-5V1-1 | — | — | — |
| 57 | VSS output to ABS (128k) | — | — | — | — | — | — | — | — |
| 58 | Low speed cooling fan relay | — | W71 | — | 0.5 | NEXUSS3-A-16 | — | — | — |
| 59 | Powertrain relay coil control (main relay) | — | W60 | — | 0.5 | NEXUSS3-A-9 | — | — | — |
| 61 | EVAP canister vent solenoid | — | — | — | — | — | — | — | — |
| 63 | A/C compressor clutch relay | — | W72 | — | 0.5 | NEXUSS3-A-17 | — | — | — |
| 64 | HO2S heater low control, bank 2 sensor 2 | — | W73 | — | 0.5 | NEXUSS3-C-33 | — | — | — |
| 65 | HO2S heater low control, bank 1 sensor 2 | — | — | — | — | — | — | — | — |
| 68 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
| 69 | HO2S signal, bank 2 sensor 2 (post-cat) | — | W75 | — | 0.5 | NEXUSS3-C-18 | — | — | — |
| 70 | Secondary fuel level sensor signal (1937) | — | — | — | — | — | — | — | — |
| 71 | VSS high signal (manual trans) | — | W78 | — | 0.5 | NEXUSS3-C-5 | — | — | — |
| 72 | VSS low signal (manual trans) | — | W79 | — | 0.5 | NEXUSS3-C-6 | — | — | — |
| 73 | Power ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Brake switch signal | — | W83 | — | 0.5 | NEXUSS3-C-20 | — | — | — |
OEM-X2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Cylinder shutoff solenoid 1 (AFM) | — | — | — | — | — | — | — | — |
| 11 | Cylinder shutoff solenoid 4 (AFM) | — | — | — | — | — | — | — | — |
| 12 | HO2S heater low control, bank 1 sensor 1 | — | — | — | — | — | — | — | — |
| 13 | HO2S heater low control, bank 2 sensor 1 | — | — | — | — | — | — | — | — |
| 14 | Cylinder shutoff solenoid 2 (AFM) | — | — | — | — | — | — | — | — |
| 16 | Camshaft actuator solenoid (VVT) | — | — | — | — | — | — | — | — |
| 17 | Injector 8 | — | W58 | — | 0.5 | NEXUSS3-A-8 | — | — | — |
| 18 | Injector 5 | — | W55 | — | 0.5 | NEXUSS3-A-5 | — | — | — |
| 19 | Injector 6 | — | W56 | — | 0.5 | NEXUSS3-A-6 | — | — | — |
| 2 | 5V reference (crankshaft sensor) | — | W31 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | Injector 1 | — | W51 | — | 0.5 | NEXUSS3-A-1 | — | — | — |
| 21 | Engine coolant temperature (ECT) signal | — | W67 | — | 0.5 | NEXUSS3-C-16 | — | — | — |
| 22 | ECT low reference | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 26 | Knock sensor 1 signal A | — | W41 | — | 0.5 | NEXUSS3-C-23 | — | — | — |
| 27 | Knock sensor 1 signal B | — | W42 | — | 0.5 | NEXUSS3-C-24 | — | — | — |
| 29 | Knock sensor 2 signal A | — | — | — | — | — | — | — | — |
| 3 | 5V reference (throttle body) | — | W32 | — | 0.5 | SP-5V1-1 | — | — | — |
| 30 | Knock sensor 2 signal B | — | — | — | — | — | — | — | — |
| 32 | Generator field duty control | — | — | — | — | — | — | — | — |
| 33 | Oil level switch signal | — | — | — | — | — | — | — | — |
| 34 | Oil pressure low reference | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 35 | Throttle body low reference | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 37 | Injector 2 | — | W52 | — | 0.5 | NEXUSS3-A-2 | — | — | — |
| 38 | Injector 3 | — | W53 | — | 0.5 | NEXUSS3-A-3 | — | — | — |
| 39 | Injector 4 | — | W54 | — | 0.5 | NEXUSS3-A-4 | — | — | — |
| 40 | Injector 7 | — | W57 | — | 0.5 | NEXUSS3-A-7 | — | — | — |
| 41 | 5V reference (oil pressure) | — | W33 | — | 0.5 | SP-5V1-1 | — | — | — |
| 43 | 5V reference (MAP) | — | W34 | — | 0.5 | SP-5V1-1 | — | — | — |
| 44 | 5V reference (camshaft sensor) | — | W35 | — | 0.5 | SP-5V1-1 | — | — | — |
| 5 | Throttle actuator motor control 2 | — | — | — | — | — | — | — | — |
| 50 | Engine oil pressure signal | — | — | — | — | — | — | — | — |
| 52 | Camshaft actuator low reference | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | MAP low reference | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 56 | HO2S low reference, bank 1 sensor 1 | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 57 | HO2S signal, bank 1 sensor 1 (pre-cat) | — | W76 | — | 0.5 | NEXUSS3-C-27 | — | — | — |
| 58 | Manifold absolute pressure (MAP) signal | — | W62 | — | 0.5 | NEXUSS3-C-11 | — | — | — |
| 59 | HO2S signal, bank 2 sensor 1 (pre-cat) | — | W77 | — | 0.5 | NEXUSS3-C-28 | — | — | — |
| 6 | Throttle actuator motor control 1 | — | — | — | — | — | — | — | — |
| 60 | HO2S low reference, bank 2 sensor 1 | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 61 | Charge indicator signal | — | — | — | — | — | — | — | — |
| 63 | Throttle position sensor 2 signal | — | W66 | — | 0.5 | NEXUSS3-C-15 | — | — | — |
| 64 | Camshaft position signal (4x) | — | W39 | — | 0.5 | NEXUSS3-C-3 | — | — | — |
| 65 | Throttle position sensor 1 signal | — | W64 | — | 0.5 | NEXUSS3-C-13 | — | — | — |
| 66 | Camshaft position low reference | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 68 | Crankshaft position signal (58x) | — | W37 | — | 0.5 | NEXUSS3-C-1 | — | — | — |
| 69 | Crankshaft position low reference | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 70 | Ignition coil 1 control | — | W43 | — | 0.5 | NEXUSS3-A-27 | — | — | — |
| 71 | Ignition coil 8 control | — | W50 | — | 0.5 | NEXUSS3-A-34 | — | — | — |
| 72 | Ignition coil 7 control | — | W49 | — | 0.5 | NEXUSS3-A-33 | — | — | — |
| 73 | Ignition coil 2 control | — | W44 | — | 0.5 | NEXUSS3-A-28 | — | — | — |
| 74 | Ignition coil 6 control | — | W48 | — | 0.5 | NEXUSS3-A-32 | — | — | — |
| 75 | Ignition coil 5 control | — | W47 | — | 0.5 | NEXUSS3-A-31 | — | — | — |
| 76 | Ignition coil 4 control | — | W46 | — | 0.5 | NEXUSS3-A-30 | — | — | — |
| 77 | Ignition coil 3 control | — | W45 | — | 0.5 | NEXUSS3-A-29 | — | — | — |
| 78 | Coil low reference (odd bank) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 79 | Coil low reference (even bank) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | EVAP canister purge solenoid | — | — | — | — | — | — | — | — |
| 9 | Cylinder shutoff solenoid 3 (AFM) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W10 | — | 0.5 | OEM-X1-11 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-X1-13 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-X1-23 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-X1-30 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-X1-31 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-X1-38 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-X1-49 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-X2-22 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-X2-34 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-X2-35 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-X2-52 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-X2-53 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-X2-56 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | OEM-X2-60 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | OEM-X2-66 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-X2-69 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | NEXUSS3-C-26 | — | — | — |
| 1 | — | — | W38 | — | 0.5 | NEXUSS3-C-2 | — | — | — |
| 1 | — | — | W40 | — | 0.5 | NEXUSS3-C-4 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-X1-19 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-X1-47 | — | — | — |
| 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 | — | — | W27 | — | 0.5 | OEM-X1-33 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | OEM-X1-34 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | OEM-X1-36 | — | — | — |
| 1 | — | — | W30 | — | 0.5 | OEM-X1-56 | — | — | — |
| 1 | — | — | W31 | — | 0.5 | OEM-X2-2 | — | — | — |
| 1 | — | — | W32 | — | 0.5 | OEM-X2-3 | — | — | — |
| 1 | — | — | W33 | — | 0.5 | OEM-X2-41 | — | — | — |
| 1 | — | — | W34 | — | 0.5 | OEM-X2-43 | — | — | — |
| 1 | — | — | W35 | — | 0.5 | OEM-X2-44 | — | — | — |
| 1 | — | — | W36 | — | 0.5 | NEXUSS3-C-25 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-X1-73 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-X2-78 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-X2-79 | — | — | — |
| 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-X1-1 | Park/Neutral signal (1786) | digital_in | NEXUSS3-C-8 | SPI 4 | digital_in | single_source | |
| OEM-X1-10 | HO2S signal, bank 1 sensor 2 (post-cat) | lambda_nb_in | NEXUSS3-C-17 | AVI 8 | analog_in | single_source | |
| OEM-X1-11 | HO2S low reference, bank 1 sensor 2 | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-12 | A/C refrigerant pressure signal | analog_in | — | — | — | corroborated | |
| OEM-X1-13 | A/C refrigerant pressure sensor low reference (5514) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-16 | Fuel level sensor signal, primary (1589) | analog_in | — | — | — | single_source | |
| OEM-X1-17 | High speed cooling fan relay | low_side_out | NEXUSS3-A-12 | DPO 2 | low_side_out | corroborated | |
| OEM-X1-18 | Accessory wakeup serial data (5985) | serial | — | — | — | single_source | |
| OEM-X1-19 | Ignition 1 voltage (key hot) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-X1-2 | 4WD low signal (1694) | digital_in | NEXUSS3-C-7 | SPI 3 | digital_in | single_source | |
| OEM-X1-20 | Battery positive voltage (batt hot) | power_in | — | — | — | single_source | |
| OEM-X1-23 | APP sensor low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-24 | Fuel tank pressure signal | analog_in | — | — | — | corroborated | |
| OEM-X1-27 | High-speed GMLAN serial data bus - (2501) | can_l | NEXUSS3-A-24 | CAN 1 Low | can_l | single_source | |
| OEM-X1-28 | High-speed GMLAN serial data bus + (2500) | can_h | NEXUSS3-A-23 | CAN 1 High | can_h | single_source | |
| OEM-X1-29 | Accelerator pedal position (APP) sensor 1 signal | analog_in | NEXUSS3-C-12 | AVI 3 | analog_in | single_source | |
| OEM-X1-3 | Axle switch signal (1695) | digital_in | NEXUSS3-C-19 | SPI 5 | digital_in | single_source | |
| OEM-X1-30 | APP sensor low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-31 | Fuel tank pressure sensor low reference (6049) | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-32 | Accelerator pedal position (APP) sensor 2 signal | analog_in | NEXUSS3-C-14 | AVI 5 | analog_in | single_source | |
| OEM-X1-33 | 5V reference (fuel tank pressure) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X1-34 | 5V reference (A/C pressure) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X1-36 | 5V reference (APP sensor) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X1-37 | Intake air temperature (IAT) signal | temp_in | — | — | — | corroborated | |
| OEM-X1-38 | Intake air temperature (IAT) low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-41 | Mass air flow (MAF) signal | analog_in | NEXUSS3-C-10 | AVI 1 | analog_in | corroborated | |
| OEM-X1-47 | Ignition 1 voltage (key hot) | power_in | NEXUSS3-A-18 + NEXUSS3-A-25 | +12V switched input + +12V switched input | power_in | single_source | |
| OEM-X1-48 | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-X1-49 | HO2S low reference, bank 2 sensor 2 | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X1-50 | Fuel pump relay control (primary) | low_side_out | NEXUSS3-A-26 | ECR output | low_side_out | corroborated | |
| OEM-X1-51 | Fuel pump relay control (secondary) | low_side_out | NEXUSS3-A-14 | DPO 3 | low_side_out | corroborated | |
| OEM-X1-52 | Starter enable relay control | low_side_out | NEXUSS3-A-15 | DPO 4 | low_side_out | corroborated | |
| OEM-X1-56 | 5V reference (APP sensor) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X1-57 | VSS output to ABS (128k) | tacho_out | — | — | — | corroborated | |
| OEM-X1-58 | Low speed cooling fan relay | low_side_out | NEXUSS3-A-16 | DPO 5 | low_side_out | corroborated | |
| OEM-X1-59 | Powertrain relay coil control (main relay) | low_side_out | NEXUSS3-A-9 | DPO 1 | low_side_out | corroborated | |
| OEM-X1-61 | EVAP canister vent solenoid | low_side_out | — | — | — | corroborated | |
| OEM-X1-63 | A/C compressor clutch relay | low_side_out | NEXUSS3-A-17 | DPO 6 | low_side_out | corroborated | |
| OEM-X1-64 | HO2S heater low control, bank 2 sensor 2 | low_side_out | NEXUSS3-C-33 | WBI 1 Heater - | low_side_out | single_source | |
| OEM-X1-65 | HO2S heater low control, bank 1 sensor 2 | low_side_out | — | — | — | single_source | |
| OEM-X1-68 | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | corroborated | |
| OEM-X1-69 | HO2S signal, bank 2 sensor 2 (post-cat) | lambda_nb_in | NEXUSS3-C-18 | AVI 9 | analog_in | single_source | |
| OEM-X1-70 | Secondary fuel level sensor signal (1937) | analog_in | — | — | — | single_source | |
| OEM-X1-71 | VSS high signal (manual trans) | digital_in | NEXUSS3-C-5 | SPI 1 | digital_in | corroborated | |
| OEM-X1-72 | VSS low signal (manual trans) | digital_in | NEXUSS3-C-6 | SPI 2 | digital_in | corroborated | |
| OEM-X1-73 | Power ground | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-X1-9 | Brake switch signal | digital_in | NEXUSS3-C-20 | SPI 6 | digital_in | corroborated | |
| OEM-X2-10 | Cylinder shutoff solenoid 1 (AFM) | low_side_out | — | — | — | corroborated | |
| OEM-X2-11 | Cylinder shutoff solenoid 4 (AFM) | low_side_out | — | — | — | corroborated | |
| OEM-X2-12 | HO2S heater low control, bank 1 sensor 1 | low_side_out | — | — | — | single_source | |
| OEM-X2-13 | HO2S heater low control, bank 2 sensor 1 | low_side_out | — | — | — | single_source | |
| OEM-X2-14 | Cylinder shutoff solenoid 2 (AFM) | low_side_out | — | — | — | corroborated | |
| OEM-X2-16 | Camshaft actuator solenoid (VVT) | low_side_out | — | — | — | corroborated | |
| OEM-X2-17 | Injector 8 | injector_out | NEXUSS3-A-8 | Injector 8 | injector_out | single_source | |
| OEM-X2-18 | Injector 5 | injector_out | NEXUSS3-A-5 | Injector 5 | injector_out | single_source | |
| OEM-X2-19 | Injector 6 | injector_out | NEXUSS3-A-6 | Injector 6 | injector_out | single_source | |
| OEM-X2-2 | 5V reference (crankshaft sensor) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X2-20 | Injector 1 | injector_out | NEXUSS3-A-1 | Injector 1 | injector_out | single_source | |
| OEM-X2-21 | Engine coolant temperature (ECT) signal | temp_in | NEXUSS3-C-16 | AVI 7 | analog_in | corroborated | |
| OEM-X2-22 | ECT low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-26 | Knock sensor 1 signal A | knock_in | NEXUSS3-C-23 | Knock 1 | knock_in | corroborated | |
| OEM-X2-27 | Knock sensor 1 signal B | knock_in | NEXUSS3-C-24 | Knock 2 | knock_in | single_source | |
| OEM-X2-29 | Knock sensor 2 signal A | knock_in | — | — | — | corroborated | |
| OEM-X2-3 | 5V reference (throttle body) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X2-30 | Knock sensor 2 signal B | knock_in | — | — | — | single_source | |
| OEM-X2-32 | Generator field duty control | low_side_out | — | — | — | corroborated | |
| OEM-X2-33 | Oil level switch signal | digital_in | — | — | — | corroborated | |
| OEM-X2-34 | Oil pressure low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-35 | Throttle body low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-37 | Injector 2 | injector_out | NEXUSS3-A-2 | Injector 2 | injector_out | single_source | |
| OEM-X2-38 | Injector 3 | injector_out | NEXUSS3-A-3 | Injector 3 | injector_out | single_source | |
| OEM-X2-39 | Injector 4 | injector_out | NEXUSS3-A-4 | Injector 4 | injector_out | single_source | |
| OEM-X2-40 | Injector 7 | injector_out | NEXUSS3-A-7 | Injector 7 | injector_out | single_source | |
| OEM-X2-41 | 5V reference (oil pressure) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X2-43 | 5V reference (MAP) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X2-44 | 5V reference (camshaft sensor) | vref | NEXUSS3-C-25 | +5V | vref | single_source | |
| OEM-X2-5 | Throttle actuator motor control 2 | hbridge_out | — | — | — | corroborated | |
| OEM-X2-50 | Engine oil pressure signal | analog_in | — | — | — | corroborated | |
| OEM-X2-52 | Camshaft actuator low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-53 | MAP low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-56 | HO2S low reference, bank 1 sensor 1 | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-57 | HO2S signal, bank 1 sensor 1 (pre-cat) | lambda_nb_in | NEXUSS3-C-27 | AVI 10 | analog_in | single_source | |
| OEM-X2-58 | Manifold absolute pressure (MAP) signal | analog_in | NEXUSS3-C-11 | AVI 2 | analog_in | corroborated | |
| OEM-X2-59 | HO2S signal, bank 2 sensor 1 (pre-cat) | lambda_nb_in | NEXUSS3-C-28 | AVI 11 | analog_in | single_source | |
| OEM-X2-6 | Throttle actuator motor control 1 | hbridge_out | — | — | — | corroborated | |
| OEM-X2-60 | HO2S low reference, bank 2 sensor 1 | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-61 | Charge indicator signal | low_side_out | — | — | — | corroborated | |
| OEM-X2-63 | Throttle position sensor 2 signal | analog_in | NEXUSS3-C-15 | AVI 6 | analog_in | single_source | |
| OEM-X2-64 | Camshaft position signal (4x) | trigger_in | NEXUSS3-C-3 | Home + | trigger_in | single_source | |
| OEM-X2-65 | Throttle position sensor 1 signal | analog_in | NEXUSS3-C-13 | AVI 4 | analog_in | single_source | |
| OEM-X2-66 | Camshaft position low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-68 | Crankshaft position signal (58x) | trigger_in | NEXUSS3-C-1 | Trigger + | trigger_in | single_source | |
| OEM-X2-69 | Crankshaft position low reference | sensor_ground | NEXUSS3-C-2 + NEXUSS3-C-26 + NEXUSS3-C-4 | Trigger - + Signal ground + Home - | sensor_ground + trigger_in | single_source | |
| OEM-X2-70 | Ignition coil 1 control | ignition_out | NEXUSS3-A-27 | Ignition 1 | ignition_out | single_source | |
| OEM-X2-71 | Ignition coil 8 control | ignition_out | NEXUSS3-A-34 | Ignition 8 | ignition_out | single_source | |
| OEM-X2-72 | Ignition coil 7 control | ignition_out | NEXUSS3-A-33 | Ignition 7 | ignition_out | single_source | |
| OEM-X2-73 | Ignition coil 2 control | ignition_out | NEXUSS3-A-28 | Ignition 2 | ignition_out | single_source | |
| OEM-X2-74 | Ignition coil 6 control | ignition_out | NEXUSS3-A-32 | Ignition 6 | ignition_out | single_source | |
| OEM-X2-75 | Ignition coil 5 control | ignition_out | NEXUSS3-A-31 | Ignition 5 | ignition_out | single_source | |
| OEM-X2-76 | Ignition coil 4 control | ignition_out | NEXUSS3-A-30 | Ignition 4 | ignition_out | single_source | |
| OEM-X2-77 | Ignition coil 3 control | ignition_out | NEXUSS3-A-29 | Ignition 3 | ignition_out | single_source | |
| OEM-X2-78 | Coil low reference (odd bank) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-X2-79 | Coil low reference (even bank) | ground | NEXUSS3-A-10 + NEXUSS3-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-X2-8 | EVAP canister purge solenoid | low_side_out | — | — | — | corroborated | |
| OEM-X2-9 | Cylinder shutoff solenoid 3 (AFM) | low_side_out | — | — | — | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-X1-19 | SP-14V-1 | 0.85 | no route | Ignition 1 voltage (key hot) | — | |
| W2 | OEM-X1-47 | SP-14V-1 | 0.85 | no route | Ignition 1 voltage (key hot) | — | |
| 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-X1-73 | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | OEM-X2-78 | SP-GND-1 | 0.85 | no route | Coil low reference (odd bank) | — | |
| W7 | OEM-X2-79 | SP-GND-1 | 0.85 | no route | Coil low reference (even bank) | — | |
| 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-X1-11 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 1 sensor 2 | — | |
| W11 | OEM-X1-13 | SP-0V-1 | 0.5 | no route | A/C refrigerant pressure sensor low reference (5514) | — | |
| W12 | OEM-X1-23 | SP-0V-1 | 0.5 | no route | APP sensor low reference | — | |
| W13 | OEM-X1-30 | SP-0V-1 | 0.5 | no route | APP sensor low reference | — | |
| W14 | OEM-X1-31 | SP-0V-1 | 0.5 | no route | Fuel tank pressure sensor low reference (6049) | — | |
| W15 | OEM-X1-38 | SP-0V-1 | 0.5 | no route | Intake air temperature (IAT) low reference | — | |
| W16 | OEM-X1-49 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 2 sensor 2 | — | |
| W17 | OEM-X2-22 | SP-0V-1 | 0.5 | no route | ECT low reference | — | |
| W18 | OEM-X2-34 | SP-0V-1 | 0.5 | no route | Oil pressure low reference | — | |
| W19 | OEM-X2-35 | SP-0V-1 | 0.5 | no route | Throttle body low reference | — | |
| W20 | OEM-X2-52 | SP-0V-1 | 0.5 | no route | Camshaft actuator low reference | — | |
| W21 | OEM-X2-53 | SP-0V-1 | 0.5 | no route | MAP low reference | — | |
| W22 | OEM-X2-56 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 1 sensor 1 | — | |
| W23 | OEM-X2-60 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 2 sensor 1 | — | |
| W24 | OEM-X2-66 | SP-0V-1 | 0.5 | no route | Camshaft position low reference | — | |
| W25 | OEM-X2-69 | SP-0V-1 | 0.5 | no route | Crankshaft position low reference | — | |
| W26 | SP-0V-1 | NEXUSS3-C-26 | 0.5 | no route | Signal ground | — | |
| W27 | OEM-X1-33 | SP-5V1-1 | 0.5 | no route | 5V reference (fuel tank pressure) | — | |
| W28 | OEM-X1-34 | SP-5V1-1 | 0.5 | no route | 5V reference (A/C pressure) | — | |
| W29 | OEM-X1-36 | SP-5V1-1 | 0.5 | no route | 5V reference (APP sensor) | — | |
| W30 | OEM-X1-56 | SP-5V1-1 | 0.5 | no route | 5V reference (APP sensor) | — | |
| W31 | OEM-X2-2 | SP-5V1-1 | 0.5 | no route | 5V reference (crankshaft sensor) | — | |
| W32 | OEM-X2-3 | SP-5V1-1 | 0.5 | no route | 5V reference (throttle body) | — | |
| W33 | OEM-X2-41 | SP-5V1-1 | 0.5 | no route | 5V reference (oil pressure) | — | |
| W34 | OEM-X2-43 | SP-5V1-1 | 0.5 | no route | 5V reference (MAP) | — | |
| W35 | OEM-X2-44 | SP-5V1-1 | 0.5 | no route | 5V reference (camshaft sensor) | — | |
| W36 | SP-5V1-1 | NEXUSS3-C-25 | 0.5 | no route | +5V | — | |
| W37 | OEM-X2-68 | NEXUSS3-C-1 | 0.5 | no route | Crankshaft position signal (58x) | — | |
| W38 | SP-0V-1 | NEXUSS3-C-2 | 0.5 | no route | Trigger - | — | |
| W39 | OEM-X2-64 | NEXUSS3-C-3 | 0.5 | no route | Camshaft position signal (4x) | — | |
| W40 | SP-0V-1 | NEXUSS3-C-4 | 0.5 | no route | Home - | — | |
| W41 | OEM-X2-26 | NEXUSS3-C-23 | 0.5 | no route | Knock sensor 1 signal A | — | |
| W42 | OEM-X2-27 | NEXUSS3-C-24 | 0.5 | no route | Knock sensor 1 signal B | — | |
| W43 | OEM-X2-70 | NEXUSS3-A-27 | 0.5 | no route | Ignition coil 1 control | — | |
| W44 | OEM-X2-73 | NEXUSS3-A-28 | 0.5 | no route | Ignition coil 2 control | — | |
| W45 | OEM-X2-77 | NEXUSS3-A-29 | 0.5 | no route | Ignition coil 3 control | — | |
| W46 | OEM-X2-76 | NEXUSS3-A-30 | 0.5 | no route | Ignition coil 4 control | — | |
| W47 | OEM-X2-75 | NEXUSS3-A-31 | 0.5 | no route | Ignition coil 5 control | — | |
| W48 | OEM-X2-74 | NEXUSS3-A-32 | 0.5 | no route | Ignition coil 6 control | — | |
| W49 | OEM-X2-72 | NEXUSS3-A-33 | 0.5 | no route | Ignition coil 7 control | — | |
| W50 | OEM-X2-71 | NEXUSS3-A-34 | 0.5 | no route | Ignition coil 8 control | — | |
| W51 | OEM-X2-20 | NEXUSS3-A-1 | 0.5 | no route | Injector 1 | — | |
| W52 | OEM-X2-37 | NEXUSS3-A-2 | 0.5 | no route | Injector 2 | — | |
| W53 | OEM-X2-38 | NEXUSS3-A-3 | 0.5 | no route | Injector 3 | — | |
| W54 | OEM-X2-39 | NEXUSS3-A-4 | 0.5 | no route | Injector 4 | — | |
| W55 | OEM-X2-18 | NEXUSS3-A-5 | 0.5 | no route | Injector 5 | — | |
| W56 | OEM-X2-19 | NEXUSS3-A-6 | 0.5 | no route | Injector 6 | — | |
| W57 | OEM-X2-40 | NEXUSS3-A-7 | 0.5 | no route | Injector 7 | — | |
| W58 | OEM-X2-17 | NEXUSS3-A-8 | 0.5 | no route | Injector 8 | — | |
| W59 | OEM-X1-50 | NEXUSS3-A-26 | 0.5 | no route | Fuel pump relay control (primary) | — | |
| W60 | OEM-X1-59 | NEXUSS3-A-9 | 0.5 | no route | Powertrain relay coil control (main relay) | — | |
| W61 | OEM-X1-41 | NEXUSS3-C-10 | 0.5 | no route | Mass air flow (MAF) signal | — | |
| W62 | OEM-X2-58 | NEXUSS3-C-11 | 0.5 | no route | Manifold absolute pressure (MAP) signal | — | |
| W63 | OEM-X1-29 | NEXUSS3-C-12 | 0.5 | no route | Accelerator pedal position (APP) sensor 1 signal | — | |
| W64 | OEM-X2-65 | NEXUSS3-C-13 | 0.5 | no route | Throttle position sensor 1 signal | — | |
| W65 | OEM-X1-32 | NEXUSS3-C-14 | 0.5 | no route | Accelerator pedal position (APP) sensor 2 signal | — | |
| W66 | OEM-X2-63 | NEXUSS3-C-15 | 0.5 | no route | Throttle position sensor 2 signal | — | |
| W67 | OEM-X2-21 | NEXUSS3-C-16 | 0.5 | no route | Engine coolant temperature (ECT) signal | — | |
| W68 | OEM-X1-17 | NEXUSS3-A-12 | 0.5 | no route | High speed cooling fan relay | — | |
| W69 | OEM-X1-51 | NEXUSS3-A-14 | 0.5 | no route | Fuel pump relay control (secondary) | — | |
| W70 | OEM-X1-52 | NEXUSS3-A-15 | 0.5 | no route | Starter enable relay control | — | |
| W71 | OEM-X1-58 | NEXUSS3-A-16 | 0.5 | no route | Low speed cooling fan relay | — | |
| W72 | OEM-X1-63 | NEXUSS3-A-17 | 0.5 | no route | A/C compressor clutch relay | — | |
| W73 | OEM-X1-64 | NEXUSS3-C-33 | 0.5 | no route | HO2S heater low control, bank 2 sensor 2 | — | |
| W74 | OEM-X1-10 | NEXUSS3-C-17 | 0.5 | no route | HO2S signal, bank 1 sensor 2 (post-cat) | — | |
| W75 | OEM-X1-69 | NEXUSS3-C-18 | 0.5 | no route | HO2S signal, bank 2 sensor 2 (post-cat) | — | |
| W76 | OEM-X2-57 | NEXUSS3-C-27 | 0.5 | no route | HO2S signal, bank 1 sensor 1 (pre-cat) | — | |
| W77 | OEM-X2-59 | NEXUSS3-C-28 | 0.5 | no route | HO2S signal, bank 2 sensor 1 (pre-cat) | — | |
| W78 | OEM-X1-71 | NEXUSS3-C-5 | 0.5 | no route | VSS high signal (manual trans) | — | |
| W79 | OEM-X1-72 | NEXUSS3-C-6 | 0.5 | no route | VSS low signal (manual trans) | — | |
| W80 | OEM-X1-2 | NEXUSS3-C-7 | 0.5 | no route | 4WD low signal (1694) | — | |
| W81 | OEM-X1-1 | NEXUSS3-C-8 | 0.5 | no route | Park/Neutral signal (1786) | — | |
| W82 | OEM-X1-3 | NEXUSS3-C-19 | 0.5 | no route | Axle switch signal (1695) | — | |
| W83 | OEM-X1-9 | NEXUSS3-C-20 | 0.5 | no route | Brake switch signal | — | |
| W84 | OEM-X1-28 | NEXUSS3-A-23 | 0.5 | no route | High-speed GMLAN serial data bus + (2500) | — | |
| W85 | OEM-X1-27 | NEXUSS3-A-24 | 0.5 | no route | High-speed GMLAN serial data bus - (2501) | — |
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 (5)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-X2-5 | Required OEM function "Throttle actuator motor control 2" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-X2-6 | Required OEM function "Throttle actuator motor control 1" (hbridge_out) is not connected to the new ECU. |
| info | NET_FAMILY | OEM-X1-49 ↔ NEXUSS3-C-2 | OEM-X1-49 "HO2S low reference, bank 2 sensor 2" [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 | NET_FAMILY | OEM-X2-21 ↔ NEXUSS3-C-16 | OEM-X2-21 "Engine coolant temperature (ECT) signal" [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 | UNMAPPED | OEM | 25 optional OEM pins are not mapped: OEM-X1-12 A/C refrigerant pressure signal; OEM-X1-16 Fuel level sensor signal, primary (1589); OEM-X1-18 Accessory wakeup serial data (5985); OEM-X1-24 Fuel tank pressure signal; OEM-X1-37 Intake air temperature (IAT) signal; OEM-X1-48 Tachometer output; OEM-X1-57 VSS output to ABS (128k); OEM-X1-61 EVAP canister vent solenoid; OEM-X1-65 HO2S heater low control, bank 1 sensor 2; OEM-X1-68 Malfunction indicator lamp (MIL); OEM-X1-70 Secondary fuel level sensor signal (1937); OEM-X2-10 Cylinder shutoff solenoid 1 (AFM); OEM-X2-11 Cylinder shutoff solenoid 4 (AFM); OEM-X2-12 HO2S heater low control, bank 1 sensor 1; OEM-X2-13 HO2S heater low control, bank 2 sensor 1; OEM-X2-14 Cylinder shutoff solenoid 2 (AFM); OEM-X2-16 Camshaft actuator solenoid (VVT); OEM-X2-29 Knock sensor 2 signal A; OEM-X2-30 Knock sensor 2 signal B; OEM-X2-32 Generator field duty control; OEM-X2-33 Oil level switch signal; OEM-X2-50 Engine oil pressure signal; OEM-X2-61 Charge indicator signal; OEM-X2-8 EVAP canister purge solenoid; OEM-X2-9 Cylinder shutoff solenoid 3 (AFM) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-X1-20 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: unconfirmed. Confirm these before building: - Needs CAN (GM E38 (C6 Corvette)); not documented for this ECU Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-X2 6: Throttle actuator motor control 1: no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-X2 5: Throttle actuator motor control 2: no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand Not wired: - OEM-X1 20: Battery positive voltage (batt hot): Haltech Nexus S3 has no battery-constant input; not needed - OEM-X2 29: Knock sensor 2 signal A: no free knock input on Haltech Nexus S3 - OEM-X2 30: Knock sensor 2 signal B: no free knock input on Haltech Nexus S3 - OEM-X1 65: HO2S heater low control, bank 1 sensor 2: no free heater_low_side/low_side/relay_control/ls_hs/injector on Haltech Nexus S3 - OEM-X2 12: HO2S heater low control, bank 1 sensor 1: no free heater_low_side/low_side/relay_control/ls_hs/injector on Haltech Nexus S3 - OEM-X2 13: HO2S heater low control, bank 2 sensor 1: no free heater_low_side/low_side/relay_control/ls_hs/injector on Haltech Nexus S3 - OEM-X2 10: Cylinder shutoff solenoid 1 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 14: Cylinder shutoff solenoid 2 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 9: Cylinder shutoff solenoid 3 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 11: Cylinder shutoff solenoid 4 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X1 61: EVAP canister vent solenoid: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X1 68: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 16: Camshaft actuator solenoid (VVT): no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 32: Generator field duty control: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 61: Charge indicator signal: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X2 8: EVAP canister purge solenoid: no free low_side/relay_control/heater_low_side/ls_hs/injector on Haltech Nexus S3 - OEM-X1 48: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on Haltech Nexus S3 - OEM-X1 57: VSS output to ABS (128k): no free frequency_out/tacho/low_side/ls_hs on Haltech Nexus S3 - OEM-X1 37: Intake air temperature (IAT) signal: no free thermistor/analog_0_5 on Haltech Nexus S3 - OEM-X1 12: A/C refrigerant pressure signal: no free analog_0_5 on Haltech Nexus S3 - OEM-X1 16: Fuel level sensor signal, primary (1589): no free analog_0_5 on Haltech Nexus S3 - OEM-X1 24: Fuel tank pressure signal: no free analog_0_5 on Haltech Nexus S3 - OEM-X1 70: Secondary fuel level sensor signal (1937): no free analog_0_5 on Haltech Nexus S3 - OEM-X2 50: Engine oil pressure signal: no free analog_0_5 on Haltech Nexus S3 - OEM-X2 33: Oil level switch signal: no free switch_in/frequency_in/analog_0_5 on Haltech Nexus S3 - OEM-X1 18: Accessory wakeup serial data (5985): no free k_line on Haltech Nexus S3 - NEXUSS3-A 13: Ignition switch input: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
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 | MaxxECU webhelp: Wiring — plug-in ECU Chevrolet Corvette C6 (GM E38 ECM) | http://www.maxxecu.com/webhelp/wirings-pluginecu-chevrolet_corvette_c6_e38_ecm.html | — | — | — |
| 2 | community_copy | lt1swap.com: E38 ECM Connector Pinouts | https://lt1swap.com/E38 ECM Connector Pinouts.htm | — | — | — |