Chevrolet Camaro SS 2010-15 (LS3/L99) → MaxxECU MaxxECU STREET REV9+ (auto)
Chevrolet Camaro SS 2010-15 (LS3/L99) — MaxxECU — MaxxECU STREET
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
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 | 9: read the Findings page before cutting any wire |
| Size of the job | 61 wires · 7 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-X1-19 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-X1-47 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | MAXXECUSTREE-C1-M4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-X1-73 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-X2-78 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-X2-79 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | MAXXECUSTREE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-X1-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-X1-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-X1-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-X1-38 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-X1-49 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-X2-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-X2-34 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-X2-35 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-X2-52 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-X2-53 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-X2-56 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-X2-60 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-X2-66 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-X2-69 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-X1-33 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-X1-34 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-X1-36 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-X1-56 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-X2-2 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-X2-3 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-X2-41 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-X2-43 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-X2-44 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | SP-5V1-1 | MAXXECUSTREE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-X2-68 | MAXXECUSTREE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-X2-64 | MAXXECUSTREE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-X2-70 | MAXXECUSTREE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-X2-73 | MAXXECUSTREE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-X2-77 | MAXXECUSTREE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-X2-76 | MAXXECUSTREE-C1-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-X2-75 | MAXXECUSTREE-C1-C2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-X2-74 | MAXXECUSTREE-C1-C3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-X2-20 | MAXXECUSTREE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-X2-37 | MAXXECUSTREE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-X2-38 | MAXXECUSTREE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-X2-39 | MAXXECUSTREE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-X2-18 | MAXXECUSTREE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-X2-19 | MAXXECUSTREE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-X2-40 | MAXXECUSTREE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-X2-17 | MAXXECUSTREE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-X1-50 | MAXXECUSTREE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-X1-59 | MAXXECUSTREE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-X1-17 | MAXXECUSTREE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-X1-51 | MAXXECUSTREE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-X1-64 | MAXXECUSTREE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-X1-41 | MAXXECUSTREE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-X2-58 | MAXXECUSTREE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-X1-29 | MAXXECUSTREE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-X2-21 | MAXXECUSTREE-C1-J1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-X1-37 | MAXXECUSTREE-C1-J2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-X1-71 | MAXXECUSTREE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-X1-72 | MAXXECUSTREE-C1-K4 | 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 | MAXXECUSTREE-C1-G1 | MAXXECUSTREE-C1-L4 | open (OL) | 5 V sensor reference must not touch power ground | |
| 2 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-L4 | open (OL) | +12 V supply must not touch power ground | |
| 3 | MAXXECUSTREE-C1-H1 | MAXXECUSTREE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MAXXECUSTREE-C1-H1 | MAXXECUSTREE-C1-M4 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-G1 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECUSTREE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A2 | IGN 1 | — | W36 | — | 0.5 | OEM-X2-70 | — | — | — |
| A3 | IGN 2 | — | W37 | — | 0.5 | OEM-X2-73 | — | — | — |
| A4 | GPO 8/TACHO | — | W53 | — | 0.5 | OEM-X1-51 | — | — | — |
| B2 | IGN 3 | — | W38 | — | 0.5 | OEM-X2-77 | — | — | — |
| B3 | IGN 4 | — | W39 | — | 0.5 | OEM-X2-76 | — | — | — |
| B4 | GPO 1 | — | W50 | — | 0.5 | OEM-X1-50 | — | — | — |
| C2 | IGN 5 | — | W40 | — | 0.5 | OEM-X2-75 | — | — | — |
| C3 | IGN 6 | — | W41 | — | 0.5 | OEM-X2-74 | — | — | — |
| C4 | GPO 2 | — | W51 | — | 0.5 | OEM-X1-59 | — | — | — |
| D1 | WBO2 Heater- | — | W54 | — | 0.5 | OEM-X1-64 | — | — | — |
| D4 | GPO 3 | — | W52 | — | 0.5 | OEM-X1-17 | — | — | — |
| E1 | CAN H | — | — | — | — | — | — | — | — |
| E2 | CAN L | — | — | — | — | — | — | — | — |
| E3 | GND Shield | — | — | — | — | — | — | — | — |
| F1 | CLT | — | — | — | — | — | — | — | — |
| F2 | IAT | — | — | — | — | — | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W33 | — | 0.5 | SP-5V1-1 | — | — | — |
| G2 | TPS/AIN | — | W57 | — | 0.5 | OEM-X1-29 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W34 | — | 0.5 | OEM-X2-68 | — | — | — |
| H4 | HOME | — | W35 | — | 0.5 | OEM-X2-64 | — | — | — |
| J1 | AIN 1 (temperature) | — | W58 | — | 0.5 | OEM-X2-21 | — | — | — |
| J2 | AIN 2 (Temperature) | — | W59 | — | 0.5 | OEM-X1-37 | — | — | — |
| J3 | AIN 3 (0-5V) | — | W55 | — | 0.5 | OEM-X1-41 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W56 | — | 0.5 | OEM-X2-58 | — | — | — |
| K1 | INJ 1 | — | W42 | — | 0.5 | OEM-X2-20 | — | — | — |
| K1 | INJ 1 | — | W48 | — | 0.5 | OEM-X2-40 | — | — | — |
| K2 | INJ 2 | — | W43 | — | 0.5 | OEM-X2-37 | — | — | — |
| K2 | INJ 2 | — | W49 | — | 0.5 | OEM-X2-17 | — | — | — |
| K3 | DIN 1 | — | W60 | — | 0.5 | OEM-X1-71 | — | — | — |
| K4 | DIN 2 | — | W61 | — | 0.5 | OEM-X1-72 | — | — | — |
| L3 | INJ 6 | — | W47 | — | 0.5 | OEM-X2-19 | — | — | — |
| L4 | Engine GND | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W44 | — | 0.5 | OEM-X2-38 | — | — | — |
| M2 | INJ 4 | — | W45 | — | 0.5 | OEM-X2-39 | — | — | — |
| M3 | INJ 5 | — | W46 | — | 0.5 | OEM-X2-18 | — | — | — |
| M4 | +12V ECU power supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
OEM-X1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | HO2S signal, bank 1 sensor 2 (post-cat) | — | — | — | — | — | — | — | — |
| 11 | HO2S low reference, bank 1 sensor 2 | — | W8 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | A/C refrigerant pressure signal | — | — | — | — | — | — | — | — |
| 17 | High speed cooling fan relay | — | W52 | — | 0.5 | MAXXECUSTREE-C1-D4 | — | — | — |
| 19 | Ignition 1 voltage (key hot) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 20 | Battery positive voltage (batt hot) | — | — | — | — | — | — | — | — |
| 23 | APP sensor low reference | — | W9 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Fuel tank pressure signal | — | — | — | — | — | — | — | — |
| 29 | Accelerator pedal position (APP) sensor 1 signal | — | W57 | — | 0.5 | MAXXECUSTREE-C1-G2 | — | — | — |
| 30 | APP sensor low reference | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 32 | Accelerator pedal position (APP) sensor 2 signal | — | — | — | — | — | — | — | — |
| 33 | 5V reference (fuel tank pressure) | — | W24 | — | 0.5 | SP-5V1-1 | — | — | — |
| 34 | 5V reference (A/C pressure) | — | W25 | — | 0.5 | SP-5V1-1 | — | — | — |
| 36 | 5V reference (APP sensor) | — | W26 | — | 0.5 | SP-5V1-1 | — | — | — |
| 37 | Intake air temperature (IAT) signal | — | W59 | — | 0.5 | MAXXECUSTREE-C1-J2 | — | — | — |
| 38 | Intake air temperature (IAT) low reference | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 41 | Mass air flow (MAF) signal | — | W55 | — | 0.5 | MAXXECUSTREE-C1-J3 | — | — | — |
| 47 | Ignition 1 voltage (key hot) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 48 | Tachometer output | — | — | — | — | — | — | — | — |
| 49 | HO2S low reference, bank 2 sensor 2 | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 50 | Fuel pump relay control (primary) | — | W50 | — | 0.5 | MAXXECUSTREE-C1-B4 | — | — | — |
| 51 | Fuel pump relay control (secondary) | — | W53 | — | 0.5 | MAXXECUSTREE-C1-A4 | — | — | — |
| 52 | Starter enable relay control | — | — | — | — | — | — | — | — |
| 56 | 5V reference (APP sensor) | — | W27 | — | 0.5 | SP-5V1-1 | — | — | — |
| 57 | VSS output to ABS (128k) | — | — | — | — | — | — | — | — |
| 58 | Low speed cooling fan relay | — | — | — | — | — | — | — | — |
| 59 | Powertrain relay coil control (main relay) | — | W51 | — | 0.5 | MAXXECUSTREE-C1-C4 | — | — | — |
| 61 | EVAP canister vent solenoid | — | — | — | — | — | — | — | — |
| 63 | A/C compressor clutch relay | — | — | — | — | — | — | — | — |
| 64 | HO2S heater low control, bank 2 sensor 2 | — | W54 | — | 0.5 | MAXXECUSTREE-C1-D1 | — | — | — |
| 65 | HO2S heater low control, bank 1 sensor 2 | — | — | — | — | — | — | — | — |
| 68 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
| 69 | HO2S signal, bank 2 sensor 2 (post-cat) | — | — | — | — | — | — | — | — |
| 71 | VSS high signal (manual trans) | — | W60 | — | 0.5 | MAXXECUSTREE-C1-K3 | — | — | — |
| 72 | VSS low signal (manual trans) | — | W61 | — | 0.5 | MAXXECUSTREE-C1-K4 | — | — | — |
| 73 | Power ground | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Brake switch signal | — | — | — | — | — | — | — | — |
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 | — | W49 | — | 0.5 | MAXXECUSTREE-C1-K2 | — | — | — |
| 18 | Injector 5 | — | W46 | — | 0.5 | MAXXECUSTREE-C1-M3 | — | — | — |
| 19 | Injector 6 | — | W47 | — | 0.5 | MAXXECUSTREE-C1-L3 | — | — | — |
| 2 | 5V reference (crankshaft sensor) | — | W28 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | Injector 1 | — | W42 | — | 0.5 | MAXXECUSTREE-C1-K1 | — | — | — |
| 21 | Engine coolant temperature (ECT) signal | — | W58 | — | 0.5 | MAXXECUSTREE-C1-J1 | — | — | — |
| 22 | ECT low reference | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 26 | Knock sensor 1 signal A | — | — | — | — | — | — | — | — |
| 27 | Knock sensor 1 signal B | — | — | — | — | — | — | — | — |
| 29 | Knock sensor 2 signal A | — | — | — | — | — | — | — | — |
| 3 | 5V reference (throttle body) | — | W29 | — | 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 | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 35 | Throttle body low reference | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 37 | Injector 2 | — | W43 | — | 0.5 | MAXXECUSTREE-C1-K2 | — | — | — |
| 38 | Injector 3 | — | W44 | — | 0.5 | MAXXECUSTREE-C1-M1 | — | — | — |
| 39 | Injector 4 | — | W45 | — | 0.5 | MAXXECUSTREE-C1-M2 | — | — | — |
| 40 | Injector 7 | — | W48 | — | 0.5 | MAXXECUSTREE-C1-K1 | — | — | — |
| 41 | 5V reference (oil pressure) | — | W30 | — | 0.5 | SP-5V1-1 | — | — | — |
| 43 | 5V reference (MAP) | — | W31 | — | 0.5 | SP-5V1-1 | — | — | — |
| 44 | 5V reference (camshaft sensor) | — | W32 | — | 0.5 | SP-5V1-1 | — | — | — |
| 5 | Throttle actuator motor control 2 | — | — | — | — | — | — | — | — |
| 50 | Engine oil pressure signal | — | — | — | — | — | — | — | — |
| 52 | Camshaft actuator low reference | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | MAP low reference | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 56 | HO2S low reference, bank 1 sensor 1 | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 57 | HO2S signal, bank 1 sensor 1 (pre-cat) | — | — | — | — | — | — | — | — |
| 58 | Manifold absolute pressure (MAP) signal | — | W56 | — | 0.5 | MAXXECUSTREE-C1-J4 | — | — | — |
| 59 | HO2S signal, bank 2 sensor 1 (pre-cat) | — | — | — | — | — | — | — | — |
| 6 | Throttle actuator motor control 1 | — | — | — | — | — | — | — | — |
| 60 | HO2S low reference, bank 2 sensor 1 | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 61 | Charge indicator signal | — | — | — | — | — | — | — | — |
| 63 | Throttle position sensor 2 signal | — | — | — | — | — | — | — | — |
| 64 | Camshaft position signal (4x) | — | W35 | — | 0.5 | MAXXECUSTREE-C1-H4 | — | — | — |
| 65 | Throttle position sensor 1 signal | — | — | — | — | — | — | — | — |
| 66 | Camshaft position low reference | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 68 | Crankshaft position signal (58x) | — | W34 | — | 0.5 | MAXXECUSTREE-C1-H3 | — | — | — |
| 69 | Crankshaft position low reference | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 70 | Ignition coil 1 control | — | W36 | — | 0.5 | MAXXECUSTREE-C1-A2 | — | — | — |
| 71 | Ignition coil 8 control | — | — | — | — | — | — | — | — |
| 72 | Ignition coil 7 control | — | — | — | — | — | — | — | — |
| 73 | Ignition coil 2 control | — | W37 | — | 0.5 | MAXXECUSTREE-C1-A3 | — | — | — |
| 74 | Ignition coil 6 control | — | W41 | — | 0.5 | MAXXECUSTREE-C1-C3 | — | — | — |
| 75 | Ignition coil 5 control | — | W40 | — | 0.5 | MAXXECUSTREE-C1-C2 | — | — | — |
| 76 | Ignition coil 4 control | — | W39 | — | 0.5 | MAXXECUSTREE-C1-B3 | — | — | — |
| 77 | Ignition coil 3 control | — | W38 | — | 0.5 | MAXXECUSTREE-C1-B2 | — | — | — |
| 78 | Coil low reference (odd bank) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 79 | Coil low reference (even bank) | — | W6 | — | 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 | — | — | W8 | — | 0.5 | OEM-X1-11 | — | — | — |
| 1 | — | — | W9 | — | 0.5 | OEM-X1-23 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | OEM-X1-30 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-X1-38 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-X1-49 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-X2-22 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-X2-34 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-X2-35 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-X2-52 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-X2-53 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-X2-56 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-X2-60 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-X2-66 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-X2-69 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | MAXXECUSTREE-C1-H1 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | MAXXECUSTREE-C1-H2 | — | — | — |
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 | MAXXECUSTREE-C1-M4 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W24 | — | 0.5 | OEM-X1-33 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-X1-34 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-X1-36 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | OEM-X1-56 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | OEM-X2-2 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | OEM-X2-3 | — | — | — |
| 1 | — | — | W30 | — | 0.5 | OEM-X2-41 | — | — | — |
| 1 | — | — | W31 | — | 0.5 | OEM-X2-43 | — | — | — |
| 1 | — | — | W32 | — | 0.5 | OEM-X2-44 | — | — | — |
| 1 | — | — | W33 | — | 0.5 | MAXXECUSTREE-C1-G1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-X1-73 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-X2-78 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-X2-79 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | MAXXECUSTREE-C1-L4 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-X1-10 | HO2S signal, bank 1 sensor 2 (post-cat) | lambda_nb_in | — | — | — | single_source | |
| OEM-X1-11 | HO2S low reference, bank 1 sensor 2 | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X1-12 | A/C refrigerant pressure signal | analog_in | — | — | — | corroborated | |
| OEM-X1-17 | High speed cooling fan relay | low_side_out | MAXXECUSTREE-C1-D4 | GPO 3 | low_side_out | corroborated | |
| OEM-X1-19 | Ignition 1 voltage (key hot) | power_in | MAXXECUSTREE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-X1-20 | Battery positive voltage (batt hot) | power_in | — | — | — | single_source | |
| OEM-X1-23 | APP sensor low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X1-24 | Fuel tank pressure signal | analog_in | — | — | — | corroborated | |
| OEM-X1-29 | Accelerator pedal position (APP) sensor 1 signal | analog_in | MAXXECUSTREE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-X1-30 | APP sensor low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X1-32 | Accelerator pedal position (APP) sensor 2 signal | analog_in | — | — | — | single_source | |
| OEM-X1-33 | 5V reference (fuel tank pressure) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-X1-34 | 5V reference (A/C pressure) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-X1-36 | 5V reference (APP sensor) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-X1-37 | Intake air temperature (IAT) signal | temp_in | MAXXECUSTREE-C1-J2 | AIN 2 (Temperature) | temp_in | corroborated | |
| OEM-X1-38 | Intake air temperature (IAT) low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X1-41 | Mass air flow (MAF) signal | analog_in | MAXXECUSTREE-C1-J3 | AIN 3 (0-5V) | analog_in | corroborated | |
| OEM-X1-47 | Ignition 1 voltage (key hot) | power_in | MAXXECUSTREE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-X1-48 | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-X1-49 | HO2S low reference, bank 2 sensor 2 | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X1-50 | Fuel pump relay control (primary) | low_side_out | MAXXECUSTREE-C1-B4 | GPO 1 | low_side_out | corroborated | |
| OEM-X1-51 | Fuel pump relay control (secondary) | low_side_out | MAXXECUSTREE-C1-A4 | GPO 8/TACHO | low_side_out | corroborated | |
| OEM-X1-52 | Starter enable relay control | low_side_out | — | — | — | corroborated | |
| OEM-X1-56 | 5V reference (APP sensor) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | 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 | — | — | — | corroborated | |
| OEM-X1-59 | Powertrain relay coil control (main relay) | low_side_out | MAXXECUSTREE-C1-C4 | GPO 2 | 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 | — | — | — | corroborated | |
| OEM-X1-64 | HO2S heater low control, bank 2 sensor 2 | low_side_out | MAXXECUSTREE-C1-D1 | WBO2 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 | — | — | — | single_source | |
| OEM-X1-71 | VSS high signal (manual trans) | digital_in | MAXXECUSTREE-C1-K3 | DIN 1 | digital_in | corroborated | |
| OEM-X1-72 | VSS low signal (manual trans) | digital_in | MAXXECUSTREE-C1-K4 | DIN 2 | digital_in | corroborated | |
| OEM-X1-73 | Power ground | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-X1-9 | Brake switch signal | 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 | MAXXECUSTREE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-X2-18 | Injector 5 | injector_out | MAXXECUSTREE-C1-M3 | INJ 5 | injector_out | single_source | |
| OEM-X2-19 | Injector 6 | injector_out | MAXXECUSTREE-C1-L3 | INJ 6 | injector_out | single_source | |
| OEM-X2-2 | 5V reference (crankshaft sensor) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-X2-20 | Injector 1 | injector_out | MAXXECUSTREE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-X2-21 | Engine coolant temperature (ECT) signal | temp_in | MAXXECUSTREE-C1-J1 | AIN 1 (temperature) | temp_in | corroborated | |
| OEM-X2-22 | ECT low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-26 | Knock sensor 1 signal A | knock_in | — | — | — | corroborated | |
| OEM-X2-27 | Knock sensor 1 signal B | knock_in | — | — | — | single_source | |
| OEM-X2-29 | Knock sensor 2 signal A | knock_in | — | — | — | corroborated | |
| OEM-X2-3 | 5V reference (throttle body) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | 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 | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-35 | Throttle body low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-37 | Injector 2 | injector_out | MAXXECUSTREE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-X2-38 | Injector 3 | injector_out | MAXXECUSTREE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-X2-39 | Injector 4 | injector_out | MAXXECUSTREE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-X2-40 | Injector 7 | injector_out | MAXXECUSTREE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-X2-41 | 5V reference (oil pressure) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-X2-43 | 5V reference (MAP) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-X2-44 | 5V reference (camshaft sensor) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | 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 | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-53 | MAP low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-56 | HO2S low reference, bank 1 sensor 1 | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-57 | HO2S signal, bank 1 sensor 1 (pre-cat) | lambda_nb_in | — | — | — | single_source | |
| OEM-X2-58 | Manifold absolute pressure (MAP) signal | analog_in | MAXXECUSTREE-C1-J4 | AIN 4 (0-5V) | analog_in | corroborated | |
| OEM-X2-59 | HO2S signal, bank 2 sensor 1 (pre-cat) | lambda_nb_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 | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-61 | Charge indicator signal | low_side_out | — | — | — | corroborated | |
| OEM-X2-63 | Throttle position sensor 2 signal | analog_in | — | — | — | single_source | |
| OEM-X2-64 | Camshaft position signal (4x) | trigger_in | MAXXECUSTREE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-X2-65 | Throttle position sensor 1 signal | analog_in | — | — | — | single_source | |
| OEM-X2-66 | Camshaft position low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-68 | Crankshaft position signal (58x) | trigger_in | MAXXECUSTREE-C1-H3 | TRIGGER | trigger_in | single_source | |
| OEM-X2-69 | Crankshaft position low reference | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-X2-70 | Ignition coil 1 control | ignition_out | MAXXECUSTREE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-X2-71 | Ignition coil 8 control | ignition_out | — | — | — | single_source | |
| OEM-X2-72 | Ignition coil 7 control | ignition_out | — | — | — | single_source | |
| OEM-X2-73 | Ignition coil 2 control | ignition_out | MAXXECUSTREE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-X2-74 | Ignition coil 6 control | ignition_out | MAXXECUSTREE-C1-C3 | IGN 6 | ignition_out | single_source | |
| OEM-X2-75 | Ignition coil 5 control | ignition_out | MAXXECUSTREE-C1-C2 | IGN 5 | ignition_out | single_source | |
| OEM-X2-76 | Ignition coil 4 control | ignition_out | MAXXECUSTREE-C1-B3 | IGN 4 | ignition_out | single_source | |
| OEM-X2-77 | Ignition coil 3 control | ignition_out | MAXXECUSTREE-C1-B2 | IGN 3 | ignition_out | single_source | |
| OEM-X2-78 | Coil low reference (odd bank) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-X2-79 | Coil low reference (even bank) | ground | MAXXECUSTREE-C1-L4 | Engine GND | 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 | MAXXECUSTREE-C1-M4 | 0.85 | no route | +12V ECU power supply | — | |
| W4 | OEM-X1-73 | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W5 | OEM-X2-78 | SP-GND-1 | 0.85 | no route | Coil low reference (odd bank) | — | |
| W6 | OEM-X2-79 | SP-GND-1 | 0.85 | no route | Coil low reference (even bank) | — | |
| W7 | SP-GND-1 | MAXXECUSTREE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W8 | OEM-X1-11 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 1 sensor 2 | — | |
| W9 | OEM-X1-23 | SP-0V-1 | 0.5 | no route | APP sensor low reference | — | |
| W10 | OEM-X1-30 | SP-0V-1 | 0.5 | no route | APP sensor low reference | — | |
| W11 | OEM-X1-38 | SP-0V-1 | 0.5 | no route | Intake air temperature (IAT) low reference | — | |
| W12 | OEM-X1-49 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 2 sensor 2 | — | |
| W13 | OEM-X2-22 | SP-0V-1 | 0.5 | no route | ECT low reference | — | |
| W14 | OEM-X2-34 | SP-0V-1 | 0.5 | no route | Oil pressure low reference | — | |
| W15 | OEM-X2-35 | SP-0V-1 | 0.5 | no route | Throttle body low reference | — | |
| W16 | OEM-X2-52 | SP-0V-1 | 0.5 | no route | Camshaft actuator low reference | — | |
| W17 | OEM-X2-53 | SP-0V-1 | 0.5 | no route | MAP low reference | — | |
| W18 | OEM-X2-56 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 1 sensor 1 | — | |
| W19 | OEM-X2-60 | SP-0V-1 | 0.5 | no route | HO2S low reference, bank 2 sensor 1 | — | |
| W20 | OEM-X2-66 | SP-0V-1 | 0.5 | no route | Camshaft position low reference | — | |
| W21 | OEM-X2-69 | SP-0V-1 | 0.5 | no route | Crankshaft position low reference | — | |
| W22 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W23 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| W24 | OEM-X1-33 | SP-5V1-1 | 0.5 | no route | 5V reference (fuel tank pressure) | — | |
| W25 | OEM-X1-34 | SP-5V1-1 | 0.5 | no route | 5V reference (A/C pressure) | — | |
| W26 | OEM-X1-36 | SP-5V1-1 | 0.5 | no route | 5V reference (APP sensor) | — | |
| W27 | OEM-X1-56 | SP-5V1-1 | 0.5 | no route | 5V reference (APP sensor) | — | |
| W28 | OEM-X2-2 | SP-5V1-1 | 0.5 | no route | 5V reference (crankshaft sensor) | — | |
| W29 | OEM-X2-3 | SP-5V1-1 | 0.5 | no route | 5V reference (throttle body) | — | |
| W30 | OEM-X2-41 | SP-5V1-1 | 0.5 | no route | 5V reference (oil pressure) | — | |
| W31 | OEM-X2-43 | SP-5V1-1 | 0.5 | no route | 5V reference (MAP) | — | |
| W32 | OEM-X2-44 | SP-5V1-1 | 0.5 | no route | 5V reference (camshaft sensor) | — | |
| W33 | SP-5V1-1 | MAXXECUSTREE-C1-G1 | 0.5 | no route | +5V sensor supply | — | |
| W34 | OEM-X2-68 | MAXXECUSTREE-C1-H3 | 0.5 | no route | Crankshaft position signal (58x) | — | |
| W35 | OEM-X2-64 | MAXXECUSTREE-C1-H4 | 0.5 | no route | Camshaft position signal (4x) | — | |
| W36 | OEM-X2-70 | MAXXECUSTREE-C1-A2 | 0.5 | no route | Ignition coil 1 control | — | |
| W37 | OEM-X2-73 | MAXXECUSTREE-C1-A3 | 0.5 | no route | Ignition coil 2 control | — | |
| W38 | OEM-X2-77 | MAXXECUSTREE-C1-B2 | 0.5 | no route | Ignition coil 3 control | — | |
| W39 | OEM-X2-76 | MAXXECUSTREE-C1-B3 | 0.5 | no route | Ignition coil 4 control | — | |
| W40 | OEM-X2-75 | MAXXECUSTREE-C1-C2 | 0.5 | no route | Ignition coil 5 control | — | |
| W41 | OEM-X2-74 | MAXXECUSTREE-C1-C3 | 0.5 | no route | Ignition coil 6 control | — | |
| W42 | OEM-X2-20 | MAXXECUSTREE-C1-K1 | 0.5 | no route | Injector 1 | — | |
| W43 | OEM-X2-37 | MAXXECUSTREE-C1-K2 | 0.5 | no route | Injector 2 | — | |
| W44 | OEM-X2-38 | MAXXECUSTREE-C1-M1 | 0.5 | no route | Injector 3 | — | |
| W45 | OEM-X2-39 | MAXXECUSTREE-C1-M2 | 0.5 | no route | Injector 4 | — | |
| W46 | OEM-X2-18 | MAXXECUSTREE-C1-M3 | 0.5 | no route | Injector 5 | — | |
| W47 | OEM-X2-19 | MAXXECUSTREE-C1-L3 | 0.5 | no route | Injector 6 | — | |
| W48 | OEM-X2-40 | MAXXECUSTREE-C1-K1 | 0.5 | no route | Injector 7 | — | |
| W49 | OEM-X2-17 | MAXXECUSTREE-C1-K2 | 0.5 | no route | Injector 8 | — | |
| W50 | OEM-X1-50 | MAXXECUSTREE-C1-B4 | 0.5 | no route | Fuel pump relay control (primary) | — | |
| W51 | OEM-X1-59 | MAXXECUSTREE-C1-C4 | 0.5 | no route | Powertrain relay coil control (main relay) | — | |
| W52 | OEM-X1-17 | MAXXECUSTREE-C1-D4 | 0.5 | no route | High speed cooling fan relay | — | |
| W53 | OEM-X1-51 | MAXXECUSTREE-C1-A4 | 0.5 | no route | Fuel pump relay control (secondary) | — | |
| W54 | OEM-X1-64 | MAXXECUSTREE-C1-D1 | 0.5 | no route | HO2S heater low control, bank 2 sensor 2 | — | |
| W55 | OEM-X1-41 | MAXXECUSTREE-C1-J3 | 0.5 | no route | Mass air flow (MAF) signal | — | |
| W56 | OEM-X2-58 | MAXXECUSTREE-C1-J4 | 0.5 | no route | Manifold absolute pressure (MAP) signal | — | |
| W57 | OEM-X1-29 | MAXXECUSTREE-C1-G2 | 0.5 | no route | Accelerator pedal position (APP) sensor 1 signal | — | |
| W58 | OEM-X2-21 | MAXXECUSTREE-C1-J1 | 0.5 | no route | Engine coolant temperature (ECT) signal | — | |
| W59 | OEM-X1-37 | MAXXECUSTREE-C1-J2 | 0.5 | no route | Intake air temperature (IAT) signal | — | |
| W60 | OEM-X1-71 | MAXXECUSTREE-C1-K3 | 0.5 | no route | VSS high signal (manual trans) | — | |
| W61 | OEM-X1-72 | MAXXECUSTREE-C1-K4 | 0.5 | no route | VSS low signal (manual trans) | — |
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 (10)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | NET_MERGED | MAXXECUSTREE-C1-K1 + OEM-X2-20 + OEM-X2-40 | 2 different OEM functions share one net: OEM-X2-20 Injector 1; OEM-X2-40 Injector 7 |
| error | NET_MERGED | MAXXECUSTREE-C1-K2 + OEM-X2-17 + OEM-X2-37 | 2 different OEM functions share one net: OEM-X2-17 Injector 8; OEM-X2-37 Injector 2 |
| error | REQUIRED_UNMAPPED | OEM-X1-32 | Required OEM function "Accelerator pedal position (APP) sensor 2 signal" (analog_in) is not connected to the new ECU. |
| 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. |
| error | REQUIRED_UNMAPPED | OEM-X2-63 | Required OEM function "Throttle position sensor 2 signal" (analog_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-X2-65 | Required OEM function "Throttle position sensor 1 signal" (analog_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-X2-71 | Required OEM function "Ignition coil 8 control" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-X2-72 | Required OEM function "Ignition coil 7 control" (ignition_out) is not connected to the new ECU. |
| info | UNMAPPED | OEM | 31 optional OEM pins are not mapped: OEM-X1-10 HO2S signal, bank 1 sensor 2 (post-cat); OEM-X1-12 A/C refrigerant pressure signal; OEM-X1-24 Fuel tank pressure signal; OEM-X1-48 Tachometer output; OEM-X1-52 Starter enable relay control; OEM-X1-57 VSS output to ABS (128k); OEM-X1-58 Low speed cooling fan relay; OEM-X1-61 EVAP canister vent solenoid; OEM-X1-63 A/C compressor clutch relay; OEM-X1-65 HO2S heater low control, bank 1 sensor 2; OEM-X1-68 Malfunction indicator lamp (MIL); OEM-X1-69 HO2S signal, bank 2 sensor 2 (post-cat); OEM-X1-9 Brake switch signal; 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-X2-26 Knock sensor 1 signal A; OEM-X2-27 Knock sensor 1 signal B; 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-X2-57 HO2S signal, bank 1 sensor 1 (pre-cat); OEM-X2-59 HO2S signal, bank 2 sensor 1 (pre-cat); 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: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - Trigger pattern for GM LS not found in the ECU's docs (no GM LS entry in the MaxxECU trigger list) - No knock input; the stock knock sensor would be unused - Only 6 ignition outputs for 8 cylinders: wasted spark (pair coils per firing order) - Only 6 injector outputs for 8 injectors: batch / semi-sequential injection 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 72: Ignition coil 7 control: no free ignition output on MaxxECU MaxxECU STREET - OEM-X2 71: Ignition coil 8 control: no free ignition output on MaxxECU MaxxECU STREET - OEM-X2 6: Throttle actuator motor control 1: no free hbridge on MaxxECU MaxxECU STREET - OEM-X2 5: Throttle actuator motor control 2: no free hbridge on MaxxECU MaxxECU STREET - OEM-X2 65: Throttle position sensor 1 signal: no free tps/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X1 32: Accelerator pedal position (APP) sensor 2 signal: no free tps/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X2 63: Throttle position sensor 2 signal: no free tps/analog_0_5 on MaxxECU MaxxECU STREET Not wired: - OEM-X1 20: Battery positive voltage (batt hot): MaxxECU MaxxECU STREET has no battery-constant input; not needed - OEM-X2 26: Knock sensor 1 signal A: no free knock input on MaxxECU MaxxECU STREET - OEM-X2 27: Knock sensor 1 signal B: no free knock input on MaxxECU MaxxECU STREET - OEM-X2 29: Knock sensor 2 signal A: no free knock input on MaxxECU MaxxECU STREET - OEM-X2 30: Knock sensor 2 signal B: no free knock input on MaxxECU MaxxECU STREET - OEM-X1 52: Starter enable relay control: no free relay_control/low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X1 58: Low speed cooling fan relay: no free relay_control/low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X1 63: A/C compressor clutch relay: no free relay_control/low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X1 65: HO2S heater low control, bank 1 sensor 2: no free heater_low_side/low_side/ls_hs/hbridge on MaxxECU MaxxECU STREET - OEM-X2 12: HO2S heater low control, bank 1 sensor 1: no free heater_low_side/low_side/ls_hs/hbridge on MaxxECU MaxxECU STREET - OEM-X2 13: HO2S heater low control, bank 2 sensor 1: no free heater_low_side/low_side/ls_hs/hbridge on MaxxECU MaxxECU STREET - OEM-X2 10: Cylinder shutoff solenoid 1 (AFM): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 14: Cylinder shutoff solenoid 2 (AFM): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 9: Cylinder shutoff solenoid 3 (AFM): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 11: Cylinder shutoff solenoid 4 (AFM): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X1 61: EVAP canister vent solenoid: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X1 68: Malfunction indicator lamp (MIL): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 16: Camshaft actuator solenoid (VVT): no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 32: Generator field duty control: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 61: Charge indicator signal: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X2 8: EVAP canister purge solenoid: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU STREET - OEM-X1 48: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU STREET - OEM-X1 57: VSS output to ABS (128k): no free frequency_out/tacho/low_side/ls_hs on MaxxECU MaxxECU STREET - OEM-X1 10: HO2S signal, bank 1 sensor 2 (post-cat): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X1 69: HO2S signal, bank 2 sensor 2 (post-cat): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X2 57: HO2S signal, bank 1 sensor 1 (pre-cat): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X2 59: HO2S signal, bank 2 sensor 1 (pre-cat): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X1 12: A/C refrigerant pressure signal: no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-X1 24: Fuel tank pressure signal: no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-X2 50: Engine oil pressure signal: no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-X1 9: Brake switch signal: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-X2 33: Oil level switch signal: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | MaxxECU GEN1 pinout (MINI / STREET / SPORT / V1 / RACE / PRO) | http://www.maxxecu.com/webhelp/wirings-maxxecu_pinout.html | archive | 2026-10-05 | 2e37b6814690 |
| 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 | — | — | — |