Toyota Supra A80 1997-2002 JDM (2JZ-GTE VVT-i, single-turbo) → MaxxECU MaxxECU RACE REV9+ (auto)
Toyota Supra A80 1997-2002 JDM (2JZ-GTE VVT-i, single-turbo) — MaxxECU — MaxxECU RACE
⚠ 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 | 3: read the Findings page before cutting any wire |
| Size of the job | 57 wires · 12 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-B78-16 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-B78-7 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-B78-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | MAXXECURACE-C1-M4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-B74-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-B74-31 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-B74-9 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-B75-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | MAXXECURACE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | MAXXECURACE-C2-G4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-B74-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-B75-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-B75-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-B78-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | MAXXECURACE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MAXXECURACE-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B75-2 | MAXXECURACE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B74-23 | MAXXECURACE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B74-10 | MAXXECURACE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-B74-28 | MAXXECURACE-C2-E2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B74-27 | MAXXECURACE-C2-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B74-11 | MAXXECURACE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-B74-12 | MAXXECURACE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B74-13 | MAXXECURACE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B75-5 | MAXXECURACE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B75-6 | MAXXECURACE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B74-1 | MAXXECURACE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B74-2 | MAXXECURACE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B74-3 | MAXXECURACE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B74-4 | MAXXECURACE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B74-30 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | SP-SHD-1 | MAXXECURACE-C1-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B74-17 | MAXXECURACE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B74-18 | MAXXECURACE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B74-19 | MAXXECURACE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B74-20 | MAXXECURACE-C1-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B75-9 | MAXXECURACE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B75-15 | MAXXECURACE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B75-23 | MAXXECURACE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B75-16 | MAXXECURACE-C2-G3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B75-24 | MAXXECURACE-C2-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-B75-14 | MAXXECURACE-C1-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-B77-13 | MAXXECURACE-C1-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B78-10 | MAXXECURACE-C1-B1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B75-4 | MAXXECURACE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B76-1 | MAXXECURACE-C1-C1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B76-2 | MAXXECURACE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B76-3 | MAXXECURACE-C1-L2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-B76-6 | MAXXECURACE-C1-L1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-B75-10 | MAXXECURACE-C2-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-B75-12 | MAXXECURACE-C2-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-B75-22 | MAXXECURACE-C1-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-B76-17 | MAXXECURACE-C1-J1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-B77-25 | MAXXECURACE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-B76-11 | MAXXECURACE-C1-K4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-B76-5 | MAXXECURACE-C2-F3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-B74-25 | MAXXECURACE-C2-F4 | 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 | MAXXECURACE-C1-G1 | MAXXECURACE-C1-M4 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 2 | MAXXECURACE-C1-H1 | MAXXECURACE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MAXXECURACE-C1-H1 | MAXXECURACE-C1-M4 | open (OL) | sensor ground must not touch +12 V supply | |
| 4 | MAXXECURACE-C1-L4 | MAXXECURACE-C1-G1 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | MAXXECURACE-C1-L4 | MAXXECURACE-C1-M4 | open (OL) | power ground must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECURACE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | GPO 5 | — | W43 | — | 0.5 | OEM-B77-13 | — | — | — |
| A2 | IGN 1 | — | W22 | — | 0.5 | OEM-B74-11 | — | — | — |
| A3 | IGN 2 | — | W23 | — | 0.5 | OEM-B74-12 | — | — | — |
| A4 | GPO 8/TACHO | — | W47 | — | 0.5 | OEM-B76-2 | — | — | — |
| B1 | GPO 6 | — | W44 | — | 0.5 | OEM-B78-10 | — | — | — |
| B2 | IGN 3 | — | W24 | — | 0.5 | OEM-B74-13 | — | — | — |
| B3 | IGN 4 | — | — | — | — | — | — | — | — |
| B4 | GPO 1 | — | W33 | — | 0.5 | OEM-B74-17 | — | — | — |
| C1 | GPO 7 | — | W46 | — | 0.5 | OEM-B76-1 | — | — | — |
| C2 | IGN 5 | — | — | — | — | — | — | — | — |
| C3 | IGN 6 | — | — | — | — | — | — | — | — |
| C4 | GPO 2 | — | W34 | — | 0.5 | OEM-B74-18 | — | — | — |
| D1 | WBO2 Heater- | — | W45 | — | 0.5 | OEM-B75-4 | — | — | — |
| D2 | IGN 7 | — | — | — | — | — | — | — | — |
| D3 | IGN 8 | — | — | — | — | — | — | — | — |
| D4 | GPO 3 | — | W35 | — | 0.5 | OEM-B74-19 | — | — | — |
| E1 | CAN H | — | — | — | — | — | — | — | — |
| E2 | CAN L | — | — | — | — | — | — | — | — |
| E3 | GND Shield | — | W32 | — | 0.5 | SP-SHD-1 | — | — | — |
| E4 | GPO 4 | — | W36 | — | 0.5 | OEM-B74-20 | — | — | — |
| F1 | CLT | — | W42 | — | 0.5 | OEM-B75-14 | — | — | — |
| F2 | IAT | — | W52 | — | 0.5 | OEM-B75-22 | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W17 | — | 0.5 | OEM-B75-2 | — | — | — |
| G2 | TPS/AIN | — | W38 | — | 0.5 | OEM-B75-15 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W18 | — | 0.5 | OEM-B74-23 | — | — | — |
| H4 | HOME | — | W19 | — | 0.5 | OEM-B74-10 | — | — | — |
| J1 | AIN 1 (temperature) | — | W53 | — | 0.5 | OEM-B76-17 | — | — | — |
| J2 | AIN 2 (temperature) | — | — | — | — | — | — | — | — |
| J3 | AIN 3 (0-5V) | — | W37 | — | 0.5 | OEM-B75-9 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W39 | — | 0.5 | OEM-B75-23 | — | — | — |
| K1 | INJ 1 | — | W25 | — | 0.5 | OEM-B75-5 | — | — | — |
| K2 | INJ 2 | — | W26 | — | 0.5 | OEM-B75-6 | — | — | — |
| K3 | DIN/VR 1 | — | W54 | — | 0.5 | OEM-B77-25 | — | — | — |
| K4 | DIN/VR 2 | — | W55 | — | 0.5 | OEM-B76-11 | — | — | — |
| L1 | INJ 8 | — | W49 | — | 0.5 | OEM-B76-6 | — | — | — |
| L2 | INJ 7 | — | W48 | — | 0.5 | OEM-B76-3 | — | — | — |
| L3 | INJ 6 | — | W30 | — | 0.5 | OEM-B74-4 | — | — | — |
| L4 | Engine GND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W27 | — | 0.5 | OEM-B74-1 | — | — | — |
| M2 | INJ 4 | — | W28 | — | 0.5 | OEM-B74-2 | — | — | — |
| M3 | INJ 5 | — | W29 | — | 0.5 | OEM-B74-3 | — | — | — |
| M4 | +12V ECU power supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
MAXXECURACE-C2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | EGT 5+ | — | — | — | — | — | — | — | — |
| A2 | EGT 6+ | — | — | — | — | — | — | — | — |
| A3 | EGT 7+ | — | — | — | — | — | — | — | — |
| A4 | EGT 8+ | — | — | — | — | — | — | — | — |
| B1 | EGT 5- | — | — | — | — | — | — | — | — |
| B2 | EGT 6- | — | — | — | — | — | — | — | — |
| B3 | EGT 7- | — | — | — | — | — | — | — | — |
| B4 | EGT 8- | — | — | — | — | — | — | — | — |
| C1 | EGT 1+ | — | — | — | — | — | — | — | — |
| C2 | EGT 2+ | — | — | — | — | — | — | — | — |
| C3 | EGT 3+ | — | — | — | — | — | — | — | — |
| C4 | EGT 4+ | — | — | — | — | — | — | — | — |
| D1 | EGT 1- | — | — | — | — | — | — | — | — |
| D2 | EGT 2- | — | — | — | — | — | — | — | — |
| D3 | EGT 3- | — | — | — | — | — | — | — | — |
| D4 | EGT 4- | — | — | — | — | — | — | — | — |
| E1 | KNOCK GND | — | — | — | — | — | — | — | — |
| E2 | Knock 1 | — | W20 | — | 0.5 | OEM-B74-28 | — | — | — |
| E3 | Knock 2 | — | W21 | — | 0.5 | OEM-B74-27 | — | — | — |
| E4 | AIN 6 (0-5V) | — | W41 | — | 0.5 | OEM-B75-24 | — | — | — |
| F1 | AIN 7 (0-5V) | — | W50 | — | 0.5 | OEM-B75-10 | — | — | — |
| F2 | AIN 8 (0-5V) | — | W51 | — | 0.5 | OEM-B75-12 | — | — | — |
| F3 | DIN/VR 4 | — | W56 | — | 0.5 | OEM-B76-5 | — | — | — |
| F4 | DIN/VR 5 | — | W57 | — | 0.5 | OEM-B74-25 | — | — | — |
| G1 | GPO 15 (+12V) | — | — | — | — | — | — | — | — |
| G2 | GPO 16 (+12V) | — | — | — | — | — | — | — | — |
| G3 | AIN 5 (0-5V) | — | W40 | — | 0.5 | OEM-B75-16 | — | — | — |
| G4 | ENGINE GROUND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| H1 | MOTOR 2+ | — | — | — | — | — | — | — | — |
| H2 | MOTOR 1- | — | — | — | — | — | — | — | — |
| H3 | MOTOR 2- | — | — | — | — | — | — | — | — |
| H4 | MOTOR 1+ | — | — | — | — | — | — | — | — |
OEM-B74
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W27 | — | 0.5 | MAXXECURACE-C1-M1 | — | — | — |
| 10 | Cam position (G2) | — | W19 | — | 0.5 | MAXXECURACE-C1-H4 | — | — | — |
| 11 | Ignition 1 (IGT, cyl 1&6) | — | W22 | — | 0.5 | MAXXECURACE-C1-A2 | — | — | — |
| 12 | Ignition 2 (IGT2, cyl 5&2) | — | W23 | — | 0.5 | MAXXECURACE-C1-A3 | — | — | — |
| 13 | Ignition 3 (IGT3, cyl 3&4) | — | W24 | — | 0.5 | MAXXECURACE-C1-B2 | — | — | — |
| 15 | Wastegate VSV (PMC) | — | — | — | — | — | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W33 | — | 0.5 | MAXXECURACE-C1-B4 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W34 | — | 0.5 | MAXXECURACE-C1-C4 | — | — | — |
| 19 | ETCS-i clutch - (CL-) | — | W35 | — | 0.5 | MAXXECURACE-C1-D4 | — | — | — |
| 2 | Injector 4 (#40) | — | W28 | — | 0.5 | MAXXECURACE-C1-M2 | — | — | — |
| 20 | ETCS-i clutch + (CL+) | — | W36 | — | 0.5 | MAXXECURACE-C1-E4 | — | — | — |
| 21 | Power ground (E01) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank/cam sensor return (NE-) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE+) | — | W18 | — | 0.5 | MAXXECURACE-C1-H3 | — | — | — |
| 24 | Neutral/park switch (NSW) | — | — | — | — | — | — | — | — |
| 25 | Igniter verification (IGF) | — | W57 | — | 0.5 | MAXXECURACE-C2-F4 | — | — | — |
| 27 | Knock sensor 2 (KNK2, rear) | — | W21 | — | 0.5 | MAXXECURACE-C2-E3 | — | — | — |
| 28 | Knock sensor 1 (KNK1, front) | — | W20 | — | 0.5 | MAXXECURACE-C2-E2 | — | — | — |
| 3 | Injector 5 (#50) | — | W29 | — | 0.5 | MAXXECURACE-C1-M3 | — | — | — |
| 30 | ETCS-i motor shield (GEO1) | — | W31 | — | 0.5 | SP-SHD-1 | — | — | — |
| 31 | Power ground (E02) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Injector 6 (#60) | — | W30 | — | 0.5 | MAXXECURACE-C1-L3 | — | — | — |
| 5 | Intake air bypass VSV (VSV1) | — | — | — | — | — | — | — | — |
| 7 | ETCS-i motor - (M-) | — | — | — | — | — | — | — | — |
| 8 | ETCS-i motor + (M+) | — | — | — | — | — | — | — | — |
| 9 | ETCS-i ground (ME01) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-B75
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Mass air flow (VG) | — | W50 | — | 0.5 | MAXXECURACE-C2-F1 | — | — | — |
| 12 | O2 sensor (OX) | — | W51 | — | 0.5 | MAXXECURACE-C2-F2 | — | — | — |
| 14 | Coolant temperature (THW) | — | W42 | — | 0.5 | MAXXECURACE-C1-F1 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W38 | — | 0.5 | MAXXECURACE-C1-G2 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | W40 | — | 0.5 | MAXXECURACE-C2-G3 | — | — | — |
| 17 | Power ground (E1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor power (VC) | — | W17 | — | 0.5 | MAXXECURACE-C1-G1 | — | — | — |
| 20 | A/T 2nd-gear indicator (2) | — | — | — | — | — | — | — | — |
| 21 | A/T 1st-gear indicator (L) | — | — | — | — | — | — | — | — |
| 22 | Intake air temperature (THA) | — | W52 | — | 0.5 | MAXXECURACE-C1-F2 | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W39 | — | 0.5 | MAXXECURACE-C1-J4 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | W41 | — | 0.5 | MAXXECURACE-C2-E4 | — | — | — |
| 3 | Exhaust gas control VSV (VSV2) | — | — | — | — | — | — | — | — |
| 4 | O2 sensor heater (HT) | — | W45 | — | 0.5 | MAXXECURACE-C1-D1 | — | — | — |
| 5 | Injector 1 (#10) | — | W25 | — | 0.5 | MAXXECURACE-C1-K1 | — | — | — |
| 6 | Injector 2 (#20) | — | W26 | — | 0.5 | MAXXECURACE-C1-K2 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | — | — | — | — | — | — | — |
| 8 | Main oil pressure switch (MOPS) | — | — | — | — | — | — | — | — |
| 9 | Manifold pressure (PIM) | — | W37 | — | 0.5 | MAXXECURACE-C1-J3 | — | — | — |
OEM-B76
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/T shift solenoid 1 (S1) | — | W46 | — | 0.5 | MAXXECURACE-C1-C1 | — | — | — |
| 10 | OD direct-clutch speed (NCO-) | — | — | — | — | — | — | — | — |
| 11 | No.2 speed sensor return (SP2-) | — | W55 | — | 0.5 | MAXXECURACE-C1-K4 | — | — | — |
| 12 | Exhaust bypass VSV (VSV3) | — | — | — | — | — | — | — | — |
| 13 | A/T lock-up solenoid - (SLU-) | — | — | — | — | — | — | — | — |
| 14 | A/T accumulator solenoid - (SLN-) | — | — | — | — | — | — | — | — |
| 15 | A/T line-pressure solenoid - (SLT-) | — | — | — | — | — | — | — | — |
| 16 | Fuel pressure-up VSV (FPU) | — | — | — | — | — | — | — | — |
| 17 | A/T oil temperature (OIL) | — | W53 | — | 0.5 | MAXXECURACE-C1-J1 | — | — | — |
| 2 | A/T shift solenoid 2 (S2) | — | W47 | — | 0.5 | MAXXECURACE-C1-A4 | — | — | — |
| 3 | A/T shift solenoid 3 (S3) | — | W48 | — | 0.5 | MAXXECURACE-C1-L2 | — | — | — |
| 4 | OD direct-clutch speed (NCO+) | — | — | — | — | — | — | — | — |
| 5 | No.2 speed sensor (SP2+) | — | W56 | — | 0.5 | MAXXECURACE-C2-F3 | — | — | — |
| 6 | A/T shift solenoid 4 (S4) | — | W49 | — | 0.5 | MAXXECURACE-C1-L1 | — | — | — |
| 7 | A/T lock-up solenoid + (SLU+) | — | — | — | — | — | — | — | — |
| 8 | A/T accumulator solenoid + (SLN+) | — | — | — | — | — | — | — | — |
| 9 | A/T line-pressure solenoid + (SLT+) | — | — | — | — | — | — | — | — |
OEM-B77
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/C request (AC) | — | — | — | — | — | — | — | — |
| 13 | A/C clutch relay (ACMG) | — | W43 | — | 0.5 | MAXXECURACE-C1-A1 | — | — | — |
| 14 | A/T shift down (SFTD) | — | — | — | — | — | — | — | — |
| 16 | A/T reverse indicator (R) | — | — | — | — | — | — | — | — |
| 18 | Rear right wheel speed (RRO) | — | — | — | — | — | — | — | — |
| 19 | Rear left wheel speed (RLO) | — | — | — | — | — | — | — | — |
| 2 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 20 | Tachometer output (TACH) | — | — | — | — | — | — | — | — |
| 21 | ABS active (ABS) | — | — | — | — | — | — | — | — |
| 25 | No.1 speed sensor (SPD) | — | W54 | — | 0.5 | MAXXECURACE-C1-K3 | — | — | — |
| 26 | Electrical load sense (ELS) | — | — | — | — | — | — | — | — |
| 27 | Road speed (RSPD) | — | — | — | — | — | — | — | — |
| 4 | A/T shift up (SFTU) | — | — | — | — | — | — | — | — |
| 5 | Diagnostic/timing check (TC) | — | — | — | — | — | — | — | — |
| 6 | Stop light switch (STP) | — | — | — | — | — | — | — | — |
| 7 | A/T manual position (3) | — | — | — | — | — | — | — | — |
OEM-B78
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 10 | EFI main relay control (M-REL) | — | W44 | — | 0.5 | MAXXECURACE-C1-B1 | — | — | — |
| 11 | Serial diagnostic (SIL) | — | — | — | — | — | — | — | — |
| 16 | EFI main relay power (+B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | TRAC snow-mode light (SNOW) | — | — | — | — | — | — | — | — |
| 22 | Switch ground (EC) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | TRAC snow-mode switch (SNWI) | — | — | — | — | — | — | — | — |
| 4 | Fuel pump diagnostic (DI) | — | — | — | — | — | — | — | — |
| 5 | Fuel pump control (FPC) | — | — | — | — | — | — | — | — |
| 6 | Check-engine light (W) | — | — | — | — | — | — | — | — |
| 7 | ETCS-i power (+BM) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 8 | EFI main relay power (+B2) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Ignition switch (IGSW) | — | — | — | — | — | — | — | — |
OEM-B79
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | TRAC enable light (IND) | — | — | — | — | — | — | — | — |
| 14 | TRAC active light (CIND) | — | — | — | — | — | — | — | — |
| 17 | A/T meter LCD (LPO3) | — | — | — | — | — | — | — | — |
| 18 | A/T meter LCD (SPTL) | — | — | — | — | — | — | — | — |
| 19 | Reverse buzzer (BZ) | — | — | — | — | — | — | — | — |
| 2 | TRAC off switch (MSW) | — | — | — | — | — | — | — | — |
| 3 | A/T meter LCD (LPO1) | — | — | — | — | — | — | — | — |
| 4 | A/T meter LCD (LPO2) | — | — | — | — | — | — | — | — |
| 7 | Front right wheel speed (FRO) | — | — | — | — | — | — | — | — |
| 8 | Front left wheel speed (FLO) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-B74-22 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-B75-18 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-B75-19 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-B78-22 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | MAXXECURACE-C1-H1 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MAXXECURACE-C1-H2 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-B78-16 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-B78-7 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-B78-8 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | MAXXECURACE-C1-M4 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-B74-21 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-B74-31 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-B74-9 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-B75-17 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | MAXXECURACE-C1-L4 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MAXXECURACE-C2-G4 | — | — | — |
SP-SHD
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W31 | — | 0.5 | OEM-B74-30 | — | — | — |
| 1 | — | — | W32 | — | 0.5 | MAXXECURACE-C1-E3 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-B74-1 | Injector 3 (#30) | injector_out | MAXXECURACE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-B74-10 | Cam position (G2) | trigger_in | MAXXECURACE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-B74-11 | Ignition 1 (IGT, cyl 1&6) | ignition_out | MAXXECURACE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-B74-12 | Ignition 2 (IGT2, cyl 5&2) | ignition_out | MAXXECURACE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-B74-13 | Ignition 3 (IGT3, cyl 3&4) | ignition_out | MAXXECURACE-C1-B2 | IGN 3 | ignition_out | single_source | |
| OEM-B74-15 | Wastegate VSV (PMC) | low_side_out | — | — | — | single_source | |
| OEM-B74-17 | VVT-i OCV - (OCV-) | low_side_out | MAXXECURACE-C1-B4 | GPO 1 | low_side_out | single_source | |
| OEM-B74-18 | VVT-i OCV + (OCV+) | low_side_out | MAXXECURACE-C1-C4 | GPO 2 | low_side_out | single_source | |
| OEM-B74-19 | ETCS-i clutch - (CL-) | low_side_out | MAXXECURACE-C1-D4 | GPO 3 | low_side_out | single_source | |
| OEM-B74-2 | Injector 4 (#40) | injector_out | MAXXECURACE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-B74-20 | ETCS-i clutch + (CL+) | low_side_out | MAXXECURACE-C1-E4 | GPO 4 | low_side_out | single_source | |
| OEM-B74-21 | Power ground (E01) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-B74-22 | Crank/cam sensor return (NE-) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B74-23 | Crank position (NE+) | trigger_in | MAXXECURACE-C1-H3 | TRIGGER | trigger_in | single_source | |
| OEM-B74-24 | Neutral/park switch (NSW) | digital_in | — | — | — | single_source | |
| OEM-B74-25 | Igniter verification (IGF) | digital_in | MAXXECURACE-C2-F4 | DIN/VR 5 | digital_in | single_source | |
| OEM-B74-27 | Knock sensor 2 (KNK2, rear) | knock_in | MAXXECURACE-C2-E3 | Knock 2 | knock_in | single_source | |
| OEM-B74-28 | Knock sensor 1 (KNK1, front) | knock_in | MAXXECURACE-C2-E2 | Knock 1 | knock_in | single_source | |
| OEM-B74-3 | Injector 5 (#50) | injector_out | MAXXECURACE-C1-M3 | INJ 5 | injector_out | single_source | |
| OEM-B74-30 | ETCS-i motor shield (GEO1) | shield | MAXXECURACE-C1-E3 | GND Shield | shield | single_source | |
| OEM-B74-31 | Power ground (E02) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-B74-4 | Injector 6 (#60) | injector_out | MAXXECURACE-C1-L3 | INJ 6 | injector_out | single_source | |
| OEM-B74-5 | Intake air bypass VSV (VSV1) | low_side_out | — | — | — | single_source | |
| OEM-B74-7 | ETCS-i motor - (M-) | hbridge_out | — | — | — | single_source | |
| OEM-B74-8 | ETCS-i motor + (M+) | hbridge_out | — | — | — | single_source | |
| OEM-B74-9 | ETCS-i ground (ME01) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-B75-10 | Mass air flow (VG) | analog_in | MAXXECURACE-C2-F1 | AIN 7 (0-5V) | analog_in | single_source | |
| OEM-B75-12 | O2 sensor (OX) | lambda_nb_in | MAXXECURACE-C2-F2 | AIN 8 (0-5V) | analog_in | single_source | |
| OEM-B75-14 | Coolant temperature (THW) | temp_in | MAXXECURACE-C1-F1 | CLT | temp_in | single_source | |
| OEM-B75-15 | Accelerator pedal 1 (VPA) | analog_in | MAXXECURACE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-B75-16 | Accelerator pedal 2 (VPA2) | analog_in | MAXXECURACE-C2-G3 | AIN 5 (0-5V) | analog_in | single_source | |
| OEM-B75-17 | Power ground (E1) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-B75-18 | Sensor ground (E2) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B75-19 | MAF ground (EVG) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B75-2 | Sensor power (VC) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-B75-20 | A/T 2nd-gear indicator (2) | digital_in | — | — | — | single_source | |
| OEM-B75-21 | A/T 1st-gear indicator (L) | digital_in | — | — | — | single_source | |
| OEM-B75-22 | Intake air temperature (THA) | temp_in | MAXXECURACE-C1-F2 | IAT | temp_in | single_source | |
| OEM-B75-23 | Throttle position 1 (VTA) | analog_in | MAXXECURACE-C1-J4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-B75-24 | Throttle position 2 (VTA2) | analog_in | MAXXECURACE-C2-E4 | AIN 6 (0-5V) | analog_in | single_source | |
| OEM-B75-3 | Exhaust gas control VSV (VSV2) | low_side_out | — | — | — | single_source | |
| OEM-B75-4 | O2 sensor heater (HT) | low_side_out | MAXXECURACE-C1-D1 | WBO2 Heater- | low_side_out | single_source | |
| OEM-B75-5 | Injector 1 (#10) | injector_out | MAXXECURACE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-B75-6 | Injector 2 (#20) | injector_out | MAXXECURACE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-B75-7 | EVAP purge VSV (PRG) | low_side_out | — | — | — | single_source | |
| OEM-B75-8 | Main oil pressure switch (MOPS) | digital_in | — | — | — | single_source | |
| OEM-B75-9 | Manifold pressure (PIM) | analog_in | MAXXECURACE-C1-J3 | AIN 3 (0-5V) | analog_in | single_source | |
| OEM-B76-1 | A/T shift solenoid 1 (S1) | low_side_out | MAXXECURACE-C1-C1 | GPO 7 | low_side_out | single_source | |
| OEM-B76-10 | OD direct-clutch speed (NCO-) | digital_in | — | — | — | single_source | |
| OEM-B76-11 | No.2 speed sensor return (SP2-) | digital_in | MAXXECURACE-C1-K4 | DIN/VR 2 | digital_in | single_source | |
| OEM-B76-12 | Exhaust bypass VSV (VSV3) | low_side_out | — | — | — | single_source | |
| OEM-B76-13 | A/T lock-up solenoid - (SLU-) | low_side_out | — | — | — | single_source | |
| OEM-B76-14 | A/T accumulator solenoid - (SLN-) | low_side_out | — | — | — | single_source | |
| OEM-B76-15 | A/T line-pressure solenoid - (SLT-) | low_side_out | — | — | — | single_source | |
| OEM-B76-16 | Fuel pressure-up VSV (FPU) | low_side_out | — | — | — | single_source | |
| OEM-B76-17 | A/T oil temperature (OIL) | temp_in | MAXXECURACE-C1-J1 | AIN 1 (temperature) | temp_in | single_source | |
| OEM-B76-2 | A/T shift solenoid 2 (S2) | low_side_out | MAXXECURACE-C1-A4 | GPO 8/TACHO | low_side_out | single_source | |
| OEM-B76-3 | A/T shift solenoid 3 (S3) | low_side_out | MAXXECURACE-C1-L2 | INJ 7 | injector_out | single_source | |
| OEM-B76-4 | OD direct-clutch speed (NCO+) | digital_in | — | — | — | single_source | |
| OEM-B76-5 | No.2 speed sensor (SP2+) | digital_in | MAXXECURACE-C2-F3 | DIN/VR 4 | digital_in | single_source | |
| OEM-B76-6 | A/T shift solenoid 4 (S4) | low_side_out | MAXXECURACE-C1-L1 | INJ 8 | injector_out | single_source | |
| OEM-B76-7 | A/T lock-up solenoid + (SLU+) | low_side_out | — | — | — | single_source | |
| OEM-B76-8 | A/T accumulator solenoid + (SLN+) | low_side_out | — | — | — | single_source | |
| OEM-B76-9 | A/T line-pressure solenoid + (SLT+) | low_side_out | — | — | — | single_source | |
| OEM-B77-1 | A/C request (AC) | digital_in | — | — | — | single_source | |
| OEM-B77-13 | A/C clutch relay (ACMG) | low_side_out | MAXXECURACE-C1-A1 | GPO 5 | low_side_out | single_source | |
| OEM-B77-14 | A/T shift down (SFTD) | digital_in | — | — | — | single_source | |
| OEM-B77-16 | A/T reverse indicator (R) | digital_in | — | — | — | single_source | |
| OEM-B77-18 | Rear right wheel speed (RRO) | digital_in | — | — | — | single_source | |
| OEM-B77-19 | Rear left wheel speed (RLO) | digital_in | — | — | — | single_source | |
| OEM-B77-2 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-B77-20 | Tachometer output (TACH) | tacho_out | — | — | — | single_source | |
| OEM-B77-21 | ABS active (ABS) | digital_in | — | — | — | single_source | |
| OEM-B77-25 | No.1 speed sensor (SPD) | digital_in | MAXXECURACE-C1-K3 | DIN/VR 1 | digital_in | single_source | |
| OEM-B77-26 | Electrical load sense (ELS) | digital_in | — | — | — | single_source | |
| OEM-B77-27 | Road speed (RSPD) | digital_in | — | — | — | single_source | |
| OEM-B77-4 | A/T shift up (SFTU) | digital_in | — | — | — | single_source | |
| OEM-B77-5 | Diagnostic/timing check (TC) | digital_in | — | — | — | single_source | |
| OEM-B77-6 | Stop light switch (STP) | digital_in | — | — | — | single_source | |
| OEM-B77-7 | A/T manual position (3) | digital_in | — | — | — | single_source | |
| OEM-B78-1 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-B78-10 | EFI main relay control (M-REL) | low_side_out | MAXXECURACE-C1-B1 | GPO 6 | low_side_out | single_source | |
| OEM-B78-11 | Serial diagnostic (SIL) | serial | — | — | — | single_source | |
| OEM-B78-16 | EFI main relay power (+B) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-B78-2 | TRAC snow-mode light (SNOW) | low_side_out | — | — | — | single_source | |
| OEM-B78-22 | Switch ground (EC) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B78-3 | TRAC snow-mode switch (SNWI) | digital_in | — | — | — | single_source | |
| OEM-B78-4 | Fuel pump diagnostic (DI) | digital_in | — | — | — | single_source | |
| OEM-B78-5 | Fuel pump control (FPC) | low_side_out | — | — | — | single_source | |
| OEM-B78-6 | Check-engine light (W) | low_side_out | — | — | — | single_source | |
| OEM-B78-7 | ETCS-i power (+BM) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-B78-8 | EFI main relay power (+B2) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-B78-9 | Ignition switch (IGSW) | digital_in | — | — | — | single_source | |
| OEM-B79-1 | TRAC enable light (IND) | low_side_out | — | — | — | single_source | |
| OEM-B79-14 | TRAC active light (CIND) | low_side_out | — | — | — | single_source | |
| OEM-B79-17 | A/T meter LCD (LPO3) | low_side_out | — | — | — | single_source | |
| OEM-B79-18 | A/T meter LCD (SPTL) | low_side_out | — | — | — | single_source | |
| OEM-B79-19 | Reverse buzzer (BZ) | low_side_out | — | — | — | single_source | |
| OEM-B79-2 | TRAC off switch (MSW) | digital_in | — | — | — | single_source | |
| OEM-B79-3 | A/T meter LCD (LPO1) | low_side_out | — | — | — | single_source | |
| OEM-B79-4 | A/T meter LCD (LPO2) | low_side_out | — | — | — | single_source | |
| OEM-B79-7 | Front right wheel speed (FRO) | digital_in | — | — | — | single_source | |
| OEM-B79-8 | Front left wheel speed (FLO) | digital_in | — | — | — | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-B78-16 | SP-14V-1 | 0.85 | no route | EFI main relay power (+B) | — | |
| W2 | OEM-B78-7 | SP-14V-1 | 0.85 | no route | ETCS-i power (+BM) | — | |
| W3 | OEM-B78-8 | SP-14V-1 | 0.85 | no route | EFI main relay power (+B2) | — | |
| W4 | SP-14V-1 | MAXXECURACE-C1-M4 | 0.85 | no route | +12V ECU power supply | — | |
| W5 | OEM-B74-21 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W6 | OEM-B74-31 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W7 | OEM-B74-9 | SP-GND-1 | 0.85 | no route | ETCS-i ground (ME01) | — | |
| W8 | OEM-B75-17 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W9 | SP-GND-1 | MAXXECURACE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W10 | SP-GND-1 | MAXXECURACE-C2-G4 | 0.85 | no route | ENGINE GROUND | — | |
| W11 | OEM-B74-22 | SP-0V-1 | 0.5 | no route | Crank/cam sensor return (NE-) | — | |
| W12 | OEM-B75-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W13 | OEM-B75-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W14 | OEM-B78-22 | SP-0V-1 | 0.5 | no route | Switch ground (EC) | — | |
| W15 | SP-0V-1 | MAXXECURACE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W16 | SP-0V-1 | MAXXECURACE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| W17 | OEM-B75-2 | MAXXECURACE-C1-G1 | 0.5 | no route | Sensor power (VC) | — | |
| W18 | OEM-B74-23 | MAXXECURACE-C1-H3 | 0.5 | no route | Crank position (NE+) | — | |
| W19 | OEM-B74-10 | MAXXECURACE-C1-H4 | 0.5 | no route | Cam position (G2) | — | |
| W20 | OEM-B74-28 | MAXXECURACE-C2-E2 | 0.5 | no route | Knock sensor 1 (KNK1, front) | — | |
| W21 | OEM-B74-27 | MAXXECURACE-C2-E3 | 0.5 | no route | Knock sensor 2 (KNK2, rear) | — | |
| W22 | OEM-B74-11 | MAXXECURACE-C1-A2 | 0.5 | no route | Ignition 1 (IGT, cyl 1&6) | — | |
| W23 | OEM-B74-12 | MAXXECURACE-C1-A3 | 0.5 | no route | Ignition 2 (IGT2, cyl 5&2) | — | |
| W24 | OEM-B74-13 | MAXXECURACE-C1-B2 | 0.5 | no route | Ignition 3 (IGT3, cyl 3&4) | — | |
| W25 | OEM-B75-5 | MAXXECURACE-C1-K1 | 0.5 | no route | Injector 1 (#10) | — | |
| W26 | OEM-B75-6 | MAXXECURACE-C1-K2 | 0.5 | no route | Injector 2 (#20) | — | |
| W27 | OEM-B74-1 | MAXXECURACE-C1-M1 | 0.5 | no route | Injector 3 (#30) | — | |
| W28 | OEM-B74-2 | MAXXECURACE-C1-M2 | 0.5 | no route | Injector 4 (#40) | — | |
| W29 | OEM-B74-3 | MAXXECURACE-C1-M3 | 0.5 | no route | Injector 5 (#50) | — | |
| W30 | OEM-B74-4 | MAXXECURACE-C1-L3 | 0.5 | no route | Injector 6 (#60) | — | |
| W31 | OEM-B74-30 | SP-SHD-1 | 0.5 | no route | ETCS-i motor shield (GEO1) | — | |
| W32 | SP-SHD-1 | MAXXECURACE-C1-E3 | 0.5 | no route | GND Shield | — | |
| W33 | OEM-B74-17 | MAXXECURACE-C1-B4 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W34 | OEM-B74-18 | MAXXECURACE-C1-C4 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W35 | OEM-B74-19 | MAXXECURACE-C1-D4 | 0.5 | no route | ETCS-i clutch - (CL-) | — | |
| W36 | OEM-B74-20 | MAXXECURACE-C1-E4 | 0.5 | no route | ETCS-i clutch + (CL+) | — | |
| W37 | OEM-B75-9 | MAXXECURACE-C1-J3 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W38 | OEM-B75-15 | MAXXECURACE-C1-G2 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W39 | OEM-B75-23 | MAXXECURACE-C1-J4 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W40 | OEM-B75-16 | MAXXECURACE-C2-G3 | 0.5 | no route | Accelerator pedal 2 (VPA2) | — | |
| W41 | OEM-B75-24 | MAXXECURACE-C2-E4 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W42 | OEM-B75-14 | MAXXECURACE-C1-F1 | 0.5 | no route | Coolant temperature (THW) | — | |
| W43 | OEM-B77-13 | MAXXECURACE-C1-A1 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W44 | OEM-B78-10 | MAXXECURACE-C1-B1 | 0.5 | no route | EFI main relay control (M-REL) | — | |
| W45 | OEM-B75-4 | MAXXECURACE-C1-D1 | 0.5 | no route | O2 sensor heater (HT) | — | |
| W46 | OEM-B76-1 | MAXXECURACE-C1-C1 | 0.5 | no route | A/T shift solenoid 1 (S1) | — | |
| W47 | OEM-B76-2 | MAXXECURACE-C1-A4 | 0.5 | no route | A/T shift solenoid 2 (S2) | — | |
| W48 | OEM-B76-3 | MAXXECURACE-C1-L2 | 0.5 | no route | A/T shift solenoid 3 (S3) | — | |
| W49 | OEM-B76-6 | MAXXECURACE-C1-L1 | 0.5 | no route | A/T shift solenoid 4 (S4) | — | |
| W50 | OEM-B75-10 | MAXXECURACE-C2-F1 | 0.5 | no route | Mass air flow (VG) | — | |
| W51 | OEM-B75-12 | MAXXECURACE-C2-F2 | 0.5 | no route | O2 sensor (OX) | — | |
| W52 | OEM-B75-22 | MAXXECURACE-C1-F2 | 0.5 | no route | Intake air temperature (THA) | — | |
| W53 | OEM-B76-17 | MAXXECURACE-C1-J1 | 0.5 | no route | A/T oil temperature (OIL) | — | |
| W54 | OEM-B77-25 | MAXXECURACE-C1-K3 | 0.5 | no route | No.1 speed sensor (SPD) | — | |
| W55 | OEM-B76-11 | MAXXECURACE-C1-K4 | 0.5 | no route | No.2 speed sensor return (SP2-) | — | |
| W56 | OEM-B76-5 | MAXXECURACE-C2-F3 | 0.5 | no route | No.2 speed sensor (SP2+) | — | |
| W57 | OEM-B74-25 | MAXXECURACE-C2-F4 | 0.5 | no route | Igniter verification (IGF) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (9)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-B74-7 | Required OEM function "ETCS-i motor - (M-)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-B74-8 | Required OEM function "ETCS-i motor + (M+)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-B78-9 | Required OEM function "Ignition switch (IGSW)" (digital_in) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | MAXXECURACE-C1-A1 | MAXXECURACE-C1-A1 "GPO 5" drives OEM-B77-13 A/C clutch relay (ACMG) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | MAXXECURACE-C1-B1 | MAXXECURACE-C1-B1 "GPO 6" drives OEM-B78-10 EFI main relay control (M-REL) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NO_FUEL_PUMP | fuel pump | This engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car. |
| info | NET_FAMILY | OEM-B76-3 ↔ MAXXECURACE-C1-L2 | OEM-B76-3 "A/T shift solenoid 3 (S3)" [low_side_out] is wired to MAXXECURACE-C1-L2 "INJ 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B76-6 ↔ MAXXECURACE-C1-L1 | OEM-B76-6 "A/T shift solenoid 4 (S4)" [low_side_out] is wired to MAXXECURACE-C1-L1 "INJ 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 48 optional OEM pins are not mapped: OEM-B74-15 Wastegate VSV (PMC); OEM-B74-24 Neutral/park switch (NSW); OEM-B74-5 Intake air bypass VSV (VSV1); OEM-B75-20 A/T 2nd-gear indicator (2); OEM-B75-21 A/T 1st-gear indicator (L); OEM-B75-3 Exhaust gas control VSV (VSV2); OEM-B75-7 EVAP purge VSV (PRG); OEM-B75-8 Main oil pressure switch (MOPS); OEM-B76-10 OD direct-clutch speed (NCO-); OEM-B76-12 Exhaust bypass VSV (VSV3); OEM-B76-13 A/T lock-up solenoid - (SLU-); OEM-B76-14 A/T accumulator solenoid - (SLN-); OEM-B76-15 A/T line-pressure solenoid - (SLT-); OEM-B76-16 Fuel pressure-up VSV (FPU); OEM-B76-4 OD direct-clutch speed (NCO+); OEM-B76-7 A/T lock-up solenoid + (SLU+); OEM-B76-8 A/T accumulator solenoid + (SLN+); OEM-B76-9 A/T line-pressure solenoid + (SLT+); OEM-B77-1 A/C request (AC); OEM-B77-14 A/T shift down (SFTD); OEM-B77-16 A/T reverse indicator (R); OEM-B77-18 Rear right wheel speed (RRO); OEM-B77-19 Rear left wheel speed (RLO); OEM-B77-2 Starter signal (STA); OEM-B77-20 Tachometer output (TACH); OEM-B77-21 ABS active (ABS); OEM-B77-26 Electrical load sense (ELS); OEM-B77-27 Road speed (RSPD); OEM-B77-4 A/T shift up (SFTU); OEM-B77-5 Diagnostic/timing check (TC); OEM-B77-6 Stop light switch (STP); OEM-B77-7 A/T manual position (3); OEM-B78-11 Serial diagnostic (SIL); OEM-B78-2 TRAC snow-mode light (SNOW); OEM-B78-3 TRAC snow-mode switch (SNWI); OEM-B78-4 Fuel pump diagnostic (DI); OEM-B78-5 Fuel pump control (FPC); OEM-B78-6 Check-engine light (W); OEM-B79-1 TRAC enable light (IND); OEM-B79-14 TRAC active light (CIND); OEM-B79-17 A/T meter LCD (LPO3); OEM-B79-18 A/T meter LCD (SPTL); OEM-B79-19 Reverse buzzer (BZ); OEM-B79-2 TRAC off switch (MSW); OEM-B79-3 A/T meter LCD (LPO1); OEM-B79-4 A/T meter LCD (LPO2); OEM-B79-7 Front right wheel speed (FRO); OEM-B79-8 Front left wheel speed (FLO) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-B78-1 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-B78 9: Ignition switch (IGSW): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MaxxECU MaxxECU RACE has no dedicated key-on input - OEM-B74 7: ETCS-i motor - (M-): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-B74 8: ETCS-i motor + (M+): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand Not wired: - OEM-B78 1: Battery constant (BATT): MaxxECU MaxxECU RACE has no battery-constant input; not needed - OEM-B74 15: Wastegate VSV (PMC): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B74 5: Intake air bypass VSV (VSV1): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B75 3: Exhaust gas control VSV (VSV2): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B75 7: EVAP purge VSV (PRG): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 12: Exhaust bypass VSV (VSV3): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 13: A/T lock-up solenoid - (SLU-): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 14: A/T accumulator solenoid - (SLN-): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 15: A/T line-pressure solenoid - (SLT-): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 16: Fuel pressure-up VSV (FPU): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 7: A/T lock-up solenoid + (SLU+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 8: A/T accumulator solenoid + (SLN+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B76 9: A/T line-pressure solenoid + (SLT+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B78 2: TRAC snow-mode light (SNOW): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B78 5: Fuel pump control (FPC): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B78 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 1: TRAC enable light (IND): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 14: TRAC active light (CIND): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 17: A/T meter LCD (LPO3): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 18: A/T meter LCD (SPTL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 19: Reverse buzzer (BZ): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 3: A/T meter LCD (LPO1): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B79 4: A/T meter LCD (LPO2): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU RACE - OEM-B77 20: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU RACE - OEM-B76 10: OD direct-clutch speed (NCO-): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B76 4: OD direct-clutch speed (NCO+): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B77 18: Rear right wheel speed (RRO): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B77 19: Rear left wheel speed (RLO): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B77 27: Road speed (RSPD): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B78 4: Fuel pump diagnostic (DI): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B79 7: Front right wheel speed (FRO): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B79 8: Front left wheel speed (FLO): no free frequency_in/switch_in on MaxxECU MaxxECU RACE - OEM-B75 21: A/T 1st-gear indicator (L): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B75 20: A/T 2nd-gear indicator (2): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B74 24: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B75 8: Main oil pressure switch (MOPS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 1: A/C request (AC): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 14: A/T shift down (SFTD): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 16: A/T reverse indicator (R): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 2: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 21: ABS active (ABS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 26: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 4: A/T shift up (SFTU): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 5: Diagnostic/timing check (TC): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 6: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B77 7: A/T manual position (3): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B78 3: TRAC snow-mode switch (SNWI): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B79 2: TRAC off switch (MSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-B78 11: Serial diagnostic (SIL): no free k_line on MaxxECU MaxxECU RACE
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 |
| 3 | community_copy | wilbo666: 2JZ-GTE VVTi JZA80 Supra Engine Wiring (ECU pinout, B74-B79) | http://wilbo666.pbworks.com/w/page/57949268/2JZ-GTE%20VVTi%20JZA80%20Supra%20Engine%20Wiring | — | — | — |