Toyota Supra A80 1997-2002 JDM (2JZ-GTE VVT-i, single-turbo) → MaxxECU MaxxECU STREET REV9+ (auto)
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 | 6: read the Findings page before cutting any wire |
| Size of the job | 42 wires · 11 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 | MAXXECUSTREE-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 | MAXXECUSTREE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-B74-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-B75-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-B75-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-B78-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-B75-2 | MAXXECUSTREE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B74-23 | MAXXECUSTREE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B74-10 | MAXXECUSTREE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B74-11 | MAXXECUSTREE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-B74-12 | MAXXECUSTREE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B74-13 | MAXXECUSTREE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B75-5 | MAXXECUSTREE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-B75-6 | MAXXECUSTREE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B74-1 | MAXXECUSTREE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B74-2 | MAXXECUSTREE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B74-3 | MAXXECUSTREE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B74-4 | MAXXECUSTREE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B74-30 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | SP-SHD-1 | MAXXECUSTREE-C1-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B74-17 | MAXXECUSTREE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B74-18 | MAXXECUSTREE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B74-19 | MAXXECUSTREE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B74-20 | MAXXECUSTREE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B75-9 | MAXXECUSTREE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B75-15 | MAXXECUSTREE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B75-23 | MAXXECUSTREE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B75-14 | MAXXECUSTREE-C1-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B77-13 | MAXXECUSTREE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B75-22 | MAXXECUSTREE-C1-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B76-17 | MAXXECUSTREE-C1-J1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B77-25 | MAXXECUSTREE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-B76-11 | 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-M4 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 2 | MAXXECUSTREE-C1-H1 | MAXXECUSTREE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MAXXECUSTREE-C1-H1 | MAXXECUSTREE-C1-M4 | open (OL) | sensor ground must not touch +12 V supply | |
| 4 | MAXXECUSTREE-C1-L4 | MAXXECUSTREE-C1-G1 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | MAXXECUSTREE-C1-L4 | MAXXECUSTREE-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
MAXXECUSTREE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A2 | IGN 1 | — | W19 | — | 0.5 | OEM-B74-11 | — | — | — |
| A3 | IGN 2 | — | W20 | — | 0.5 | OEM-B74-12 | — | — | — |
| A4 | GPO 8/TACHO | — | W33 | — | 0.5 | OEM-B74-20 | — | — | — |
| B2 | IGN 3 | — | W21 | — | 0.5 | OEM-B74-13 | — | — | — |
| B3 | IGN 4 | — | — | — | — | — | — | — | — |
| B4 | GPO 1 | — | W30 | — | 0.5 | OEM-B74-17 | — | — | — |
| C2 | IGN 5 | — | — | — | — | — | — | — | — |
| C3 | IGN 6 | — | — | — | — | — | — | — | — |
| C4 | GPO 2 | — | W31 | — | 0.5 | OEM-B74-18 | — | — | — |
| D1 | WBO2 Heater- | — | W38 | — | 0.5 | OEM-B77-13 | — | — | — |
| D4 | GPO 3 | — | W32 | — | 0.5 | OEM-B74-19 | — | — | — |
| E1 | CAN H | — | — | — | — | — | — | — | — |
| E2 | CAN L | — | — | — | — | — | — | — | — |
| E3 | GND Shield | — | W29 | — | 0.5 | SP-SHD-1 | — | — | — |
| F1 | CLT | — | W37 | — | 0.5 | OEM-B75-14 | — | — | — |
| F2 | IAT | — | W39 | — | 0.5 | OEM-B75-22 | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W16 | — | 0.5 | OEM-B75-2 | — | — | — |
| G2 | TPS/AIN | — | W35 | — | 0.5 | OEM-B75-15 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W17 | — | 0.5 | OEM-B74-23 | — | — | — |
| H4 | HOME | — | W18 | — | 0.5 | OEM-B74-10 | — | — | — |
| J1 | AIN 1 (temperature) | — | W40 | — | 0.5 | OEM-B76-17 | — | — | — |
| J2 | AIN 2 (Temperature) | — | — | — | — | — | — | — | — |
| J3 | AIN 3 (0-5V) | — | W34 | — | 0.5 | OEM-B75-9 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W36 | — | 0.5 | OEM-B75-23 | — | — | — |
| K1 | INJ 1 | — | W22 | — | 0.5 | OEM-B75-5 | — | — | — |
| K2 | INJ 2 | — | W23 | — | 0.5 | OEM-B75-6 | — | — | — |
| K3 | DIN 1 | — | W41 | — | 0.5 | OEM-B77-25 | — | — | — |
| K4 | DIN 2 | — | W42 | — | 0.5 | OEM-B76-11 | — | — | — |
| L3 | INJ 6 | — | W27 | — | 0.5 | OEM-B74-4 | — | — | — |
| L4 | Engine GND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W24 | — | 0.5 | OEM-B74-1 | — | — | — |
| M2 | INJ 4 | — | W25 | — | 0.5 | OEM-B74-2 | — | — | — |
| M3 | INJ 5 | — | W26 | — | 0.5 | OEM-B74-3 | — | — | — |
| M4 | +12V ECU power supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
OEM-B74
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W24 | — | 0.5 | MAXXECUSTREE-C1-M1 | — | — | — |
| 10 | Cam position (G2) | — | W18 | — | 0.5 | MAXXECUSTREE-C1-H4 | — | — | — |
| 11 | Ignition 1 (IGT, cyl 1&6) | — | W19 | — | 0.5 | MAXXECUSTREE-C1-A2 | — | — | — |
| 12 | Ignition 2 (IGT2, cyl 5&2) | — | W20 | — | 0.5 | MAXXECUSTREE-C1-A3 | — | — | — |
| 13 | Ignition 3 (IGT3, cyl 3&4) | — | W21 | — | 0.5 | MAXXECUSTREE-C1-B2 | — | — | — |
| 15 | Wastegate VSV (PMC) | — | — | — | — | — | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W30 | — | 0.5 | MAXXECUSTREE-C1-B4 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W31 | — | 0.5 | MAXXECUSTREE-C1-C4 | — | — | — |
| 19 | ETCS-i clutch - (CL-) | — | W32 | — | 0.5 | MAXXECUSTREE-C1-D4 | — | — | — |
| 2 | Injector 4 (#40) | — | W25 | — | 0.5 | MAXXECUSTREE-C1-M2 | — | — | — |
| 20 | ETCS-i clutch + (CL+) | — | W33 | — | 0.5 | MAXXECUSTREE-C1-A4 | — | — | — |
| 21 | Power ground (E01) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank/cam sensor return (NE-) | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE+) | — | W17 | — | 0.5 | MAXXECUSTREE-C1-H3 | — | — | — |
| 24 | Neutral/park switch (NSW) | — | — | — | — | — | — | — | — |
| 25 | Igniter verification (IGF) | — | — | — | — | — | — | — | — |
| 27 | Knock sensor 2 (KNK2, rear) | — | — | — | — | — | — | — | — |
| 28 | Knock sensor 1 (KNK1, front) | — | — | — | — | — | — | — | — |
| 3 | Injector 5 (#50) | — | W26 | — | 0.5 | MAXXECUSTREE-C1-M3 | — | — | — |
| 30 | ETCS-i motor shield (GEO1) | — | W28 | — | 0.5 | SP-SHD-1 | — | — | — |
| 31 | Power ground (E02) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Injector 6 (#60) | — | W27 | — | 0.5 | MAXXECUSTREE-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) | — | — | — | — | — | — | — | — |
| 12 | O2 sensor (OX) | — | — | — | — | — | — | — | — |
| 14 | Coolant temperature (THW) | — | W37 | — | 0.5 | MAXXECUSTREE-C1-F1 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W35 | — | 0.5 | MAXXECUSTREE-C1-G2 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | — | — | — | — | — | — | — |
| 17 | Power ground (E1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor power (VC) | — | W16 | — | 0.5 | MAXXECUSTREE-C1-G1 | — | — | — |
| 20 | A/T 2nd-gear indicator (2) | — | — | — | — | — | — | — | — |
| 21 | A/T 1st-gear indicator (L) | — | — | — | — | — | — | — | — |
| 22 | Intake air temperature (THA) | — | W39 | — | 0.5 | MAXXECUSTREE-C1-F2 | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W36 | — | 0.5 | MAXXECUSTREE-C1-J4 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | — | — | — | — | — | — | — |
| 3 | Exhaust gas control VSV (VSV2) | — | — | — | — | — | — | — | — |
| 4 | O2 sensor heater (HT) | — | — | — | — | — | — | — | — |
| 5 | Injector 1 (#10) | — | W22 | — | 0.5 | MAXXECUSTREE-C1-K1 | — | — | — |
| 6 | Injector 2 (#20) | — | W23 | — | 0.5 | MAXXECUSTREE-C1-K2 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | — | — | — | — | — | — | — |
| 8 | Main oil pressure switch (MOPS) | — | — | — | — | — | — | — | — |
| 9 | Manifold pressure (PIM) | — | W34 | — | 0.5 | MAXXECUSTREE-C1-J3 | — | — | — |
OEM-B76
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/T shift solenoid 1 (S1) | — | — | — | — | — | — | — | — |
| 10 | OD direct-clutch speed (NCO-) | — | — | — | — | — | — | — | — |
| 11 | No.2 speed sensor return (SP2-) | — | W42 | — | 0.5 | MAXXECUSTREE-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) | — | W40 | — | 0.5 | MAXXECUSTREE-C1-J1 | — | — | — |
| 2 | A/T shift solenoid 2 (S2) | — | — | — | — | — | — | — | — |
| 3 | A/T shift solenoid 3 (S3) | — | — | — | — | — | — | — | — |
| 4 | OD direct-clutch speed (NCO+) | — | — | — | — | — | — | — | — |
| 5 | No.2 speed sensor (SP2+) | — | — | — | — | — | — | — | — |
| 6 | A/T shift solenoid 4 (S4) | — | — | — | — | — | — | — | — |
| 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) | — | W38 | — | 0.5 | MAXXECUSTREE-C1-D1 | — | — | — |
| 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) | — | W41 | — | 0.5 | MAXXECUSTREE-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) | — | — | — | — | — | — | — | — |
| 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) | — | W13 | — | 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 | — | — | W10 | — | 0.5 | OEM-B74-22 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-B75-18 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-B75-19 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-B78-22 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | MAXXECUSTREE-C1-H1 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | MAXXECUSTREE-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 | MAXXECUSTREE-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 | MAXXECUSTREE-C1-L4 | — | — | — |
SP-SHD
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W28 | — | 0.5 | OEM-B74-30 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | MAXXECUSTREE-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 | MAXXECUSTREE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-B74-10 | Cam position (G2) | trigger_in | MAXXECUSTREE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-B74-11 | Ignition 1 (IGT, cyl 1&6) | ignition_out | MAXXECUSTREE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-B74-12 | Ignition 2 (IGT2, cyl 5&2) | ignition_out | MAXXECUSTREE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-B74-13 | Ignition 3 (IGT3, cyl 3&4) | ignition_out | MAXXECUSTREE-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 | MAXXECUSTREE-C1-B4 | GPO 1 | low_side_out | single_source | |
| OEM-B74-18 | VVT-i OCV + (OCV+) | low_side_out | MAXXECUSTREE-C1-C4 | GPO 2 | low_side_out | single_source | |
| OEM-B74-19 | ETCS-i clutch - (CL-) | low_side_out | MAXXECUSTREE-C1-D4 | GPO 3 | low_side_out | single_source | |
| OEM-B74-2 | Injector 4 (#40) | injector_out | MAXXECUSTREE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-B74-20 | ETCS-i clutch + (CL+) | low_side_out | MAXXECUSTREE-C1-A4 | GPO 8/TACHO | low_side_out | single_source | |
| OEM-B74-21 | Power ground (E01) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-B74-22 | Crank/cam sensor return (NE-) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B74-23 | Crank position (NE+) | trigger_in | MAXXECUSTREE-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 | — | — | — | single_source | |
| OEM-B74-27 | Knock sensor 2 (KNK2, rear) | knock_in | — | — | — | single_source | |
| OEM-B74-28 | Knock sensor 1 (KNK1, front) | knock_in | — | — | — | single_source | |
| OEM-B74-3 | Injector 5 (#50) | injector_out | MAXXECUSTREE-C1-M3 | INJ 5 | injector_out | single_source | |
| OEM-B74-30 | ETCS-i motor shield (GEO1) | shield | MAXXECUSTREE-C1-E3 | GND Shield | shield | single_source | |
| OEM-B74-31 | Power ground (E02) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-B74-4 | Injector 6 (#60) | injector_out | MAXXECUSTREE-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 | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-B75-10 | Mass air flow (VG) | analog_in | — | — | — | single_source | |
| OEM-B75-12 | O2 sensor (OX) | lambda_nb_in | — | — | — | single_source | |
| OEM-B75-14 | Coolant temperature (THW) | temp_in | MAXXECUSTREE-C1-F1 | CLT | temp_in | single_source | |
| OEM-B75-15 | Accelerator pedal 1 (VPA) | analog_in | MAXXECUSTREE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-B75-16 | Accelerator pedal 2 (VPA2) | analog_in | — | — | — | single_source | |
| OEM-B75-17 | Power ground (E1) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-B75-18 | Sensor ground (E2) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B75-19 | MAF ground (EVG) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B75-2 | Sensor power (VC) | vref | MAXXECUSTREE-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 | MAXXECUSTREE-C1-F2 | IAT | temp_in | single_source | |
| OEM-B75-23 | Throttle position 1 (VTA) | analog_in | MAXXECUSTREE-C1-J4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-B75-24 | Throttle position 2 (VTA2) | 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 | — | — | — | single_source | |
| OEM-B75-5 | Injector 1 (#10) | injector_out | MAXXECUSTREE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-B75-6 | Injector 2 (#20) | injector_out | MAXXECUSTREE-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 | MAXXECUSTREE-C1-J3 | AIN 3 (0-5V) | analog_in | single_source | |
| OEM-B76-1 | A/T shift solenoid 1 (S1) | 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 | MAXXECUSTREE-C1-K4 | DIN 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 | MAXXECUSTREE-C1-J1 | AIN 1 (temperature) | temp_in | single_source | |
| OEM-B76-2 | A/T shift solenoid 2 (S2) | low_side_out | — | — | — | single_source | |
| OEM-B76-3 | A/T shift solenoid 3 (S3) | low_side_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 | — | — | — | single_source | |
| OEM-B76-6 | A/T shift solenoid 4 (S4) | low_side_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 | MAXXECUSTREE-C1-D1 | WBO2 Heater- | 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 | MAXXECUSTREE-C1-K3 | DIN 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 | — | — | — | single_source | |
| OEM-B78-11 | Serial diagnostic (SIL) | serial | — | — | — | single_source | |
| OEM-B78-16 | EFI main relay power (+B) | power_in | MAXXECUSTREE-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 | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-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 | MAXXECUSTREE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-B78-8 | EFI main relay power (+B2) | power_in | MAXXECUSTREE-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 | MAXXECUSTREE-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 | MAXXECUSTREE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W10 | OEM-B74-22 | SP-0V-1 | 0.5 | no route | Crank/cam sensor return (NE-) | — | |
| W11 | OEM-B75-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W12 | OEM-B75-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W13 | OEM-B78-22 | SP-0V-1 | 0.5 | no route | Switch ground (EC) | — | |
| W14 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W15 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| W16 | OEM-B75-2 | MAXXECUSTREE-C1-G1 | 0.5 | no route | Sensor power (VC) | — | |
| W17 | OEM-B74-23 | MAXXECUSTREE-C1-H3 | 0.5 | no route | Crank position (NE+) | — | |
| W18 | OEM-B74-10 | MAXXECUSTREE-C1-H4 | 0.5 | no route | Cam position (G2) | — | |
| W19 | OEM-B74-11 | MAXXECUSTREE-C1-A2 | 0.5 | no route | Ignition 1 (IGT, cyl 1&6) | — | |
| W20 | OEM-B74-12 | MAXXECUSTREE-C1-A3 | 0.5 | no route | Ignition 2 (IGT2, cyl 5&2) | — | |
| W21 | OEM-B74-13 | MAXXECUSTREE-C1-B2 | 0.5 | no route | Ignition 3 (IGT3, cyl 3&4) | — | |
| W22 | OEM-B75-5 | MAXXECUSTREE-C1-K1 | 0.5 | no route | Injector 1 (#10) | — | |
| W23 | OEM-B75-6 | MAXXECUSTREE-C1-K2 | 0.5 | no route | Injector 2 (#20) | — | |
| W24 | OEM-B74-1 | MAXXECUSTREE-C1-M1 | 0.5 | no route | Injector 3 (#30) | — | |
| W25 | OEM-B74-2 | MAXXECUSTREE-C1-M2 | 0.5 | no route | Injector 4 (#40) | — | |
| W26 | OEM-B74-3 | MAXXECUSTREE-C1-M3 | 0.5 | no route | Injector 5 (#50) | — | |
| W27 | OEM-B74-4 | MAXXECUSTREE-C1-L3 | 0.5 | no route | Injector 6 (#60) | — | |
| W28 | OEM-B74-30 | SP-SHD-1 | 0.5 | no route | ETCS-i motor shield (GEO1) | — | |
| W29 | SP-SHD-1 | MAXXECUSTREE-C1-E3 | 0.5 | no route | GND Shield | — | |
| W30 | OEM-B74-17 | MAXXECUSTREE-C1-B4 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W31 | OEM-B74-18 | MAXXECUSTREE-C1-C4 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W32 | OEM-B74-19 | MAXXECUSTREE-C1-D4 | 0.5 | no route | ETCS-i clutch - (CL-) | — | |
| W33 | OEM-B74-20 | MAXXECUSTREE-C1-A4 | 0.5 | no route | ETCS-i clutch + (CL+) | — | |
| W34 | OEM-B75-9 | MAXXECUSTREE-C1-J3 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W35 | OEM-B75-15 | MAXXECUSTREE-C1-G2 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W36 | OEM-B75-23 | MAXXECUSTREE-C1-J4 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W37 | OEM-B75-14 | MAXXECUSTREE-C1-F1 | 0.5 | no route | Coolant temperature (THW) | — | |
| W38 | OEM-B77-13 | MAXXECUSTREE-C1-D1 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W39 | OEM-B75-22 | MAXXECUSTREE-C1-F2 | 0.5 | no route | Intake air temperature (THA) | — | |
| W40 | OEM-B76-17 | MAXXECUSTREE-C1-J1 | 0.5 | no route | A/T oil temperature (OIL) | — | |
| W41 | OEM-B77-25 | MAXXECUSTREE-C1-K3 | 0.5 | no route | No.1 speed sensor (SPD) | — | |
| W42 | OEM-B76-11 | MAXXECUSTREE-C1-K4 | 0.5 | no route | No.2 speed sensor return (SP2-) | — |
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 | INJECTOR_BALLAST | MaxxECU STREET | The 2JZ-GTE injectors (2JZ-GTE fuel injector) are low-impedance, but MaxxECU STREET drives saturated (high-Z) injectors only. Add a ballast resistor pack in series with each injector, or use an ECU with low-Z / peak-and-hold injector drivers. |
| 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-B75-16 | Required OEM function "Accelerator pedal 2 (VPA2)" (analog_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-B75-24 | Required OEM function "Throttle position 2 (VTA2)" (analog_in) 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 | MAXXECUSTREE-C1-D1 | MAXXECUSTREE-C1-D1 "WBO2 Heater-" drives OEM-B77-13 A/C clutch relay (ACMG) (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 | UNMAPPED | OEM | 60 optional OEM pins are not mapped: OEM-B74-15 Wastegate VSV (PMC); OEM-B74-24 Neutral/park switch (NSW); OEM-B74-25 Igniter verification (IGF); OEM-B74-27 Knock sensor 2 (KNK2, rear); OEM-B74-28 Knock sensor 1 (KNK1, front); OEM-B74-5 Intake air bypass VSV (VSV1); OEM-B75-10 Mass air flow (VG); OEM-B75-12 O2 sensor (OX); 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-B75-4 O2 sensor heater (HT); OEM-B75-7 EVAP purge VSV (PRG); OEM-B75-8 Main oil pressure switch (MOPS); OEM-B76-1 A/T shift solenoid 1 (S1); 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-B76-2 A/T shift solenoid 2 (S2); OEM-B76-3 A/T shift solenoid 3 (S3); OEM-B76-4 OD direct-clutch speed (NCO+); OEM-B76-5 No.2 speed sensor (SP2+); OEM-B76-6 A/T shift solenoid 4 (S4); 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-B78-10 EFI main relay control (M-REL); 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
Fit check: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - No knock input; the stock knock sensor would be unused 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 STREET has no dedicated key-on input - OEM-B75 16: Accelerator pedal 2 (VPA2): no free tps/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B75 24: Throttle position 2 (VTA2): no free tps/analog_0_5 on MaxxECU MaxxECU STREET - 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 STREET has no battery-constant input; not needed - OEM-B74 28: Knock sensor 1 (KNK1, front): no free knock input on MaxxECU MaxxECU STREET - OEM-B74 27: Knock sensor 2 (KNK2, rear): no free knock input on MaxxECU MaxxECU STREET - OEM-B78 10: EFI main relay control (M-REL): no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on MaxxECU MaxxECU STREET - OEM-B75 4: O2 sensor heater (HT): no free heater_low_side/low_side/relay_control/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 1: A/T shift solenoid 1 (S1): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 2: A/T shift solenoid 2 (S2): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 3: A/T shift solenoid 3 (S3): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 6: A/T shift solenoid 4 (S4): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B74 15: Wastegate VSV (PMC): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B74 5: Intake air bypass VSV (VSV1): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B75 3: Exhaust gas control VSV (VSV2): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B75 7: EVAP purge VSV (PRG): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 12: Exhaust bypass VSV (VSV3): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 13: A/T lock-up solenoid - (SLU-): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 14: A/T accumulator solenoid - (SLN-): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 15: A/T line-pressure solenoid - (SLT-): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 16: Fuel pressure-up VSV (FPU): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 7: A/T lock-up solenoid + (SLU+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 8: A/T accumulator solenoid + (SLN+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B76 9: A/T line-pressure solenoid + (SLT+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B78 2: TRAC snow-mode light (SNOW): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B78 5: Fuel pump control (FPC): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B78 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 1: TRAC enable light (IND): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 14: TRAC active light (CIND): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 17: A/T meter LCD (LPO3): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 18: A/T meter LCD (SPTL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 19: Reverse buzzer (BZ): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 3: A/T meter LCD (LPO1): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B79 4: A/T meter LCD (LPO2): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-B77 20: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU STREET - OEM-B75 10: Mass air flow (VG): no free maf/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B75 12: O2 sensor (OX): no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B76 5: No.2 speed sensor (SP2+): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B74 25: Igniter verification (IGF): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B76 10: OD direct-clutch speed (NCO-): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B76 4: OD direct-clutch speed (NCO+): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B77 18: Rear right wheel speed (RRO): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B77 19: Rear left wheel speed (RLO): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B77 27: Road speed (RSPD): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B78 4: Fuel pump diagnostic (DI): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B79 7: Front right wheel speed (FRO): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B79 8: Front left wheel speed (FLO): no free frequency_in/switch_in on MaxxECU MaxxECU STREET - OEM-B75 21: A/T 1st-gear indicator (L): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B75 20: A/T 2nd-gear indicator (2): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B74 24: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B75 8: Main oil pressure switch (MOPS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 1: A/C request (AC): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 14: A/T shift down (SFTD): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 16: A/T reverse indicator (R): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 2: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 21: ABS active (ABS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 26: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 4: A/T shift up (SFTU): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 5: Diagnostic/timing check (TC): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 6: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B77 7: A/T manual position (3): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B78 3: TRAC snow-mode switch (SNWI): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B79 2: TRAC off switch (MSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B78 11: Serial diagnostic (SIL): no free k_line 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 |
| 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 | — | — | — |