Toyota Supra A80 1993-98 USDM (2JZ-GTE, non-VVT) → DTAFast T4 (auto)
Toyota Supra A80 1993-98 USDM (2JZ-GTE, non-VVT) — DTAFast — T4
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 6: read the Findings page before cutting any wire |
| Size of the job | 51 wires · 8 connectors · 2 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 3-1447221-4 |
| 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-E10-31 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-14V-1 | T4-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E10-33 | T4-C3-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-E9-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-E9-69 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E9-78 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E9-80 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | T4-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | T4-C1-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E9-5 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E9-6 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E9-65 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E9-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | T4-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | T4-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E9-41 | T4-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E9-27 | T4-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E9-26 | T4-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E9-25 | T4-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E9-57 | T4-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E9-56 | T4-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E9-55 | T4-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E9-54 | T4-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E9-20 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E9-19 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E9-18 | T4-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E9-17 | T4-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E9-16 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E9-15 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E9-62 | T4-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E9-43 | T4-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E9-44 | T4-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E10-23 | T4-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E10-24 | T4-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E9-71 | T4-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E9-72 | T4-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E10-22 | T4-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E10-6 | T4-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E9-32 | T4-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E9-33 | T4-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E9-34 | T4-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E9-47 | T4-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E9-48 | T4-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E9-45 | T4-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E10-2 | T4-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E10-21 | T4-C2-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E9-58 | T4-C2-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E10-15 | T4-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E10-4 | T4-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E9-76 | T4-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ |
Bench test (before first power-up)
Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).
| # | Probe A | Probe B | Expect | Why | Reading |
|---|---|---|---|---|---|
| 1 | T4-C1-31 | T4-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 2 | T4-C1-31 | T4-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | T4-C2-24 | T4-C2-21 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | T4-C3-26 | T4-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 5 | T4-C3-26 | T4-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 6 | T4-C1-13 | T4-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 7 | T4-C1-31 | T4-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | T4-C3-26 | T4-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
OEM-E10
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | — | — | — | — | — | — | — |
| 15 | Electrical load sensor (ELS) | — | W49 | — | 0.5 | T4-C2-19 | — | — | — |
| 16 | Tachometer output | — | — | — | — | — | — | — | — |
| 2 | Vehicle speed sensor (SP1) | — | W46 | — | 0.5 | T4-C2-4 | — | — | — |
| 21 | Fuel pump diagnostic (DI) | — | W47 | — | 0.5 | T4-C2-14 | — | — | — |
| 22 | Fuel pump control (FPC) | — | W38 | — | 0.5 | T4-C3-22 | — | — | — |
| 23 | A/C clutch relay (ACMG) | — | W34 | — | 0.5 | T4-C1-5 | — | — | — |
| 24 | Main relay control (M-REL) | — | W35 | — | 0.5 | T4-C1-4 | — | — | — |
| 31 | ECU power +B (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Battery constant (BATT) | — | W3 | — | 0.85 | T4-C3-26 | — | — | — |
| 4 | Brake switch (STP) | — | W50 | — | 0.5 | T4-C3-17 | — | — | — |
| 6 | Malfunction indicator lamp (MIL) | — | W39 | — | 0.5 | T4-C3-23 | — | — | — |
OEM-E9
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 15 | Injector 6 | — | W30 | — | 0.5 | T4-C1-17 | — | — | — |
| 16 | Injector 5 | — | W29 | — | 0.5 | T4-C1-9 | — | — | — |
| 17 | Injector 4 | — | W28 | — | 0.5 | T4-C1-25 | — | — | — |
| 18 | Injector 3 | — | W27 | — | 0.5 | T4-C1-34 | — | — | — |
| 19 | Injector 2 | — | W26 | — | 0.5 | T4-C1-17 | — | — | — |
| 20 | Injector 1 | — | W25 | — | 0.5 | T4-C1-9 | — | — | — |
| 25 | Camshaft position 2 (G2) | — | W20 | — | 0.5 | T4-C2-2 | — | — | — |
| 26 | Camshaft position 1 (G1) | — | W19 | — | 0.5 | T4-C2-22 | — | — | — |
| 27 | Crank position (NE) | — | W18 | — | 0.5 | T4-C2-12 | — | — | — |
| 32 | ISC stepper winding | — | W40 | — | 0.5 | T4-C3-24 | — | — | — |
| 33 | ISC stepper winding | — | W41 | — | 0.5 | T4-C3-25 | — | — | — |
| 34 | ISC stepper winding | — | W42 | — | 0.5 | T4-C3-10 | — | — | — |
| 35 | ISC stepper winding | — | — | — | — | — | — | — | — |
| 4 | Power ground (E11) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 41 | Sensor supply +5V (VCC) | — | W17 | — | 0.5 | T4-C2-24 | — | — | — |
| 43 | Throttle position (VTA1) | — | W32 | — | 0.5 | T4-C2-1 | — | — | — |
| 44 | Coolant temperature (THW) | — | W33 | — | 0.5 | T4-C2-7 | — | — | — |
| 45 | Intake air temperature (THA) | — | W45 | — | 0.5 | T4-C2-25 | — | — | — |
| 47 | O2 sensor 2 (OX2) | — | W43 | — | 0.5 | T4-C2-5 | — | — | — |
| 48 | O2 sensor 1 (OX1) | — | W44 | — | 0.5 | T4-C2-6 | — | — | — |
| 49 | Knock sensor 2 (KNK2) | — | — | — | — | — | — | — | — |
| 5 | Cam sensor 2 ground (G2-) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 50 | Knock sensor 1 (KNK1) | — | — | — | — | — | — | — | — |
| 52 | Ignition 6 (IGT6) | — | — | — | — | — | — | — | — |
| 53 | Ignition 5 (IGT5) | — | — | — | — | — | — | — | — |
| 54 | Ignition 4 (IGT4) | — | W24 | — | 0.5 | T4-C1-26 | — | — | — |
| 55 | Ignition 3 (IGT3) | — | W23 | — | 0.5 | T4-C1-1 | — | — | — |
| 56 | Ignition 2 (IGT2) | — | W22 | — | 0.5 | T4-C1-18 | — | — | — |
| 57 | Ignition 1 (IGT1) | — | W21 | — | 0.5 | T4-C1-10 | — | — | — |
| 58 | Ignition confirmation (IGF) | — | W48 | — | 0.5 | T4-C2-15 | — | — | — |
| 6 | Cam sensor 1 ground (G1-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 60 | Wastegate VSV (boost control) | — | — | — | — | — | — | — | — |
| 62 | MAP sensor (PIM) | — | W31 | — | 0.5 | T4-C2-10 | — | — | — |
| 65 | Sensor ground (E2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 69 | ECU power ground (E1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Crank sensor ground (NE-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 71 | O2 heater 1 (HT1) | — | W36 | — | 0.5 | T4-C3-9 | — | — | — |
| 72 | O2 heater 2 (HT2) | — | W37 | — | 0.5 | T4-C1-3 | — | — | — |
| 73 | Fuel pressure-up VSV (FPU) | — | — | — | — | — | — | — | — |
| 74 | Purge VSV (EVAP) | — | — | — | — | — | — | — | — |
| 76 | Starter signal (STA) | — | W51 | — | 0.5 | T4-C3-18 | — | — | — |
| 78 | Power ground (E01) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 79 | Power ground (E01/E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 80 | Power ground (E01/E02) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-E9-5 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-E9-6 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E9-65 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-E9-7 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | T4-C2-21 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | T4-C2-33 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E10-31 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | T4-C1-31 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-E9-4 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-E9-69 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-E9-78 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E9-79 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E9-80 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | T4-C1-13 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | T4-C1-14 | — | — | — |
T4-C1
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coil 3 | — | W23 | — | 0.5 | OEM-E9-55 | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W37 | — | 0.5 | OEM-E9-72 | — | — | — |
| 4 | PWM 2 | — | W35 | — | 0.5 | OEM-E10-24 | — | — | — |
| 5 | PWM 1 | — | W34 | — | 0.5 | OEM-E10-23 | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W25 | — | 0.5 | OEM-E9-20 | — | — | — |
| 9 | Injector 1 | — | W29 | — | 0.5 | OEM-E9-16 | — | — | — |
| 10 | Coil 1 | — | W21 | — | 0.5 | OEM-E9-57 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Power Ground 1 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Injector 2 | — | W30 | — | 0.5 | OEM-E9-15 | — | — | — |
| 17 | Injector 2 | — | W26 | — | 0.5 | OEM-E9-19 | — | — | — |
| 18 | Coil 2 | — | W22 | — | 0.5 | OEM-E9-56 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
| 25 | Injector 4 | — | W28 | — | 0.5 | OEM-E9-17 | — | — | — |
| 26 | Coil 4 | — | W24 | — | 0.5 | OEM-E9-54 | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W27 | — | 0.5 | OEM-E9-18 | — | — | — |
T4-C2
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W32 | — | 0.5 | OEM-E9-43 | — | — | — |
| 2 | Wheel 1 | — | W20 | — | 0.5 | OEM-E9-25 | — | — | — |
| 3 | Analogue 10 | — | — | — | — | — | — | — | — |
| 4 | Digital 1 | — | W46 | — | 0.5 | OEM-E10-2 | — | — | — |
| 5 | Analogue 3 | — | W43 | — | 0.5 | OEM-E9-47 | — | — | — |
| 6 | Analogue 4 | — | W44 | — | 0.5 | OEM-E9-48 | — | — | — |
| 7 | Thermistor 1 | — | W33 | — | 0.5 | OEM-E9-44 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | 5v Output | — | — | — | — | — | — | — | — |
| 10 | Analogue 1 | — | W31 | — | 0.5 | OEM-E9-62 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Crank | — | W18 | — | 0.5 | OEM-E9-27 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | W47 | — | 0.5 | OEM-E10-21 | — | — | — |
| 15 | Digital 5 | — | W48 | — | 0.5 | OEM-E9-58 | — | — | — |
| 16 | Analogue 11 | — | — | — | — | — | — | — | — |
| 17 | Thermistor 3 | — | — | — | — | — | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — |
| 19 | Analogue 6 | — | W49 | — | 0.5 | OEM-E10-15 | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W19 | — | 0.5 | OEM-E9-26 | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | 5v Output | — | W17 | — | 0.5 | OEM-E9-41 | — | — | — |
| 25 | Thermistor 2 | — | W45 | — | 0.5 | OEM-E9-45 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | — | — | — | — | — | — | — |
T4-C3
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | — | — | — | — | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | — | — | — | — | — | — | — | — | — |
| 4 | — | — | — | — | — | — | — | — | — |
| 5 | — | — | — | — | — | — | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | Lambda 1 Pump Current | — | — | — | — | — | — | — | — |
| 8 | Lambda 1 VGND | — | — | — | — | — | — | — | — |
| 9 | Lambda 1 Heater Negative | — | W36 | — | 0.5 | OEM-E9-71 | — | — | — |
| 10 | PWM 8 | — | W42 | — | 0.5 | OEM-E9-34 | — | — | — |
| 11 | Lambda 1 Trim Resistor | — | — | — | — | — | — | — | — |
| 12 | Lambda 1 Nernst Voltage | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Analogue 7 | — | W50 | — | 0.5 | OEM-E10-4 | — | — | — |
| 18 | Analogue 8 | — | W51 | — | 0.5 | OEM-E9-76 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W38 | — | 0.5 | OEM-E10-22 | — | — | — |
| 23 | PWM 5 | — | W39 | — | 0.5 | OEM-E10-6 | — | — | — |
| 24 | PWM 6 | — | W40 | — | 0.5 | OEM-E9-32 | — | — | — |
| 25 | PWM 7 | — | W41 | — | 0.5 | OEM-E9-33 | — | — | — |
| 26 | Permanent 12v | — | W3 | — | 0.85 | OEM-E10-33 | — | — | — |
| 27 | Permanent 12v | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — |
| 34 | — | — | — | — | — | — | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E10-1 | Ignition switch (IGSW) | digital_in | — | — | — | corroborated | |
| OEM-E10-15 | Electrical load sensor (ELS) | digital_in | T4-C2-19 | Analogue 6 | analog_in | single_source | |
| OEM-E10-16 | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-E10-2 | Vehicle speed sensor (SP1) | digital_in | T4-C2-4 | Digital 1 | digital_in | corroborated | |
| OEM-E10-21 | Fuel pump diagnostic (DI) | digital_in | T4-C2-14 | Digital 4 | digital_in | single_source | |
| OEM-E10-22 | Fuel pump control (FPC) | low_side_out | T4-C3-22 | PWM 4 | low_side_out | corroborated | |
| OEM-E10-23 | A/C clutch relay (ACMG) | low_side_out | T4-C1-5 | PWM 1 | low_side_out | corroborated | |
| OEM-E10-24 | Main relay control (M-REL) | low_side_out | T4-C1-4 | PWM 2 | low_side_out | corroborated | |
| OEM-E10-31 | ECU power +B (main relay) | power_in | T4-C1-31 | Ignition 12v In | power_in | corroborated | |
| OEM-E10-33 | Battery constant (BATT) | power_in | T4-C3-26 | Permanent 12v | power_in | single_source | |
| OEM-E10-4 | Brake switch (STP) | digital_in | T4-C3-17 | Analogue 7 | analog_in | single_source | |
| OEM-E10-6 | Malfunction indicator lamp (MIL) | low_side_out | T4-C3-23 | PWM 5 | low_side_out | corroborated | |
| OEM-E9-15 | Injector 6 | injector_out | T4-C1-17 | Injector 2 | injector_out | corroborated | |
| OEM-E9-16 | Injector 5 | injector_out | T4-C1-9 | Injector 1 | injector_out | corroborated | |
| OEM-E9-17 | Injector 4 | injector_out | T4-C1-25 | Injector 4 | injector_out | corroborated | |
| OEM-E9-18 | Injector 3 | injector_out | T4-C1-34 | Injector 3 | injector_out | corroborated | |
| OEM-E9-19 | Injector 2 | injector_out | T4-C1-17 | Injector 2 | injector_out | corroborated | |
| OEM-E9-20 | Injector 1 | injector_out | T4-C1-9 | Injector 1 | injector_out | corroborated | |
| OEM-E9-25 | Camshaft position 2 (G2) | trigger_in | T4-C2-2 | Wheel 1 | digital_in | corroborated | |
| OEM-E9-26 | Camshaft position 1 (G1) | trigger_in | T4-C2-22 | Cam 1 | trigger_in | corroborated | |
| OEM-E9-27 | Crank position (NE) | trigger_in | T4-C2-12 | Crank | trigger_in | corroborated | |
| OEM-E9-32 | ISC stepper winding | low_side_out | T4-C3-24 | PWM 6 | low_side_out | corroborated | |
| OEM-E9-33 | ISC stepper winding | low_side_out | T4-C3-25 | PWM 7 | low_side_out | corroborated | |
| OEM-E9-34 | ISC stepper winding | low_side_out | T4-C3-10 | PWM 8 | low_side_out | corroborated | |
| OEM-E9-35 | ISC stepper winding | low_side_out | — | — | — | corroborated | |
| OEM-E9-4 | Power ground (E11) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E9-41 | Sensor supply +5V (VCC) | vref | T4-C2-24 | 5v Output | vref | corroborated | |
| OEM-E9-43 | Throttle position (VTA1) | analog_in | T4-C2-1 | Analogue 2 | analog_in | corroborated | |
| OEM-E9-44 | Coolant temperature (THW) | temp_in | T4-C2-7 | Thermistor 1 | temp_in | corroborated | |
| OEM-E9-45 | Intake air temperature (THA) | temp_in | T4-C2-25 | Thermistor 2 | temp_in | corroborated | |
| OEM-E9-47 | O2 sensor 2 (OX2) | lambda_nb_in | T4-C2-5 | Analogue 3 | analog_in | single_source | |
| OEM-E9-48 | O2 sensor 1 (OX1) | lambda_nb_in | T4-C2-6 | Analogue 4 | analog_in | corroborated | |
| OEM-E9-49 | Knock sensor 2 (KNK2) | knock_in | — | — | — | corroborated | |
| OEM-E9-5 | Cam sensor 2 ground (G2-) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-50 | Knock sensor 1 (KNK1) | knock_in | — | — | — | corroborated | |
| OEM-E9-52 | Ignition 6 (IGT6) | ignition_out | — | — | — | corroborated | |
| OEM-E9-53 | Ignition 5 (IGT5) | ignition_out | — | — | — | corroborated | |
| OEM-E9-54 | Ignition 4 (IGT4) | ignition_out | T4-C1-26 | Coil 4 | ignition_out | corroborated | |
| OEM-E9-55 | Ignition 3 (IGT3) | ignition_out | T4-C1-1 | Coil 3 | ignition_out | corroborated | |
| OEM-E9-56 | Ignition 2 (IGT2) | ignition_out | T4-C1-18 | Coil 2 | ignition_out | corroborated | |
| OEM-E9-57 | Ignition 1 (IGT1) | ignition_out | T4-C1-10 | Coil 1 | ignition_out | corroborated | |
| OEM-E9-58 | Ignition confirmation (IGF) | digital_in | T4-C2-15 | Digital 5 | digital_in | single_source | |
| OEM-E9-6 | Cam sensor 1 ground (G1-) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-60 | Wastegate VSV (boost control) | low_side_out | — | — | — | single_source | |
| OEM-E9-62 | MAP sensor (PIM) | analog_in | T4-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-E9-65 | Sensor ground (E2) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-69 | ECU power ground (E1) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated | |
| OEM-E9-7 | Crank sensor ground (NE-) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-71 | O2 heater 1 (HT1) | low_side_out | T4-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-E9-72 | O2 heater 2 (HT2) | low_side_out | T4-C1-3 | PWM 3 | low_side_out | single_source | |
| OEM-E9-73 | Fuel pressure-up VSV (FPU) | low_side_out | — | — | — | single_source | |
| OEM-E9-74 | Purge VSV (EVAP) | low_side_out | — | — | — | single_source | |
| OEM-E9-76 | Starter signal (STA) | digital_in | T4-C3-18 | Analogue 8 | analog_in | single_source | |
| OEM-E9-78 | Power ground (E01) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E9-79 | Power ground (E01/E02) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated | |
| OEM-E9-80 | Power ground (E01/E02) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E10-31 | SP-14V-1 | 0.85 | no route | ECU power +B (main relay) | — | |
| W2 | SP-14V-1 | T4-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W3 | OEM-E10-33 | T4-C3-26 | 0.85 | no route | Battery constant (BATT) | — | |
| W4 | OEM-E9-4 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W5 | OEM-E9-69 | SP-GND-1 | 0.85 | no route | ECU power ground (E1) | — | |
| W6 | OEM-E9-78 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W8 | OEM-E9-80 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W9 | SP-GND-1 | T4-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W10 | SP-GND-1 | T4-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W11 | OEM-E9-5 | SP-0V-1 | 0.5 | no route | Cam sensor 2 ground (G2-) | — | |
| W12 | OEM-E9-6 | SP-0V-1 | 0.5 | no route | Cam sensor 1 ground (G1-) | — | |
| W13 | OEM-E9-65 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W14 | OEM-E9-7 | SP-0V-1 | 0.5 | no route | Crank sensor ground (NE-) | — | |
| W15 | SP-0V-1 | T4-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W16 | SP-0V-1 | T4-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W17 | OEM-E9-41 | T4-C2-24 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W18 | OEM-E9-27 | T4-C2-12 | 0.5 | no route | Crank position (NE) | — | |
| W19 | OEM-E9-26 | T4-C2-22 | 0.5 | no route | Camshaft position 1 (G1) | — | |
| W20 | OEM-E9-25 | T4-C2-2 | 0.5 | no route | Camshaft position 2 (G2) | — | |
| W21 | OEM-E9-57 | T4-C1-10 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W22 | OEM-E9-56 | T4-C1-18 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W23 | OEM-E9-55 | T4-C1-1 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W24 | OEM-E9-54 | T4-C1-26 | 0.5 | no route | Ignition 4 (IGT4) | — | |
| W25 | OEM-E9-20 | T4-C1-9 | 0.5 | no route | Injector 1 | — | |
| W26 | OEM-E9-19 | T4-C1-17 | 0.5 | no route | Injector 2 | — | |
| W27 | OEM-E9-18 | T4-C1-34 | 0.5 | no route | Injector 3 | — | |
| W28 | OEM-E9-17 | T4-C1-25 | 0.5 | no route | Injector 4 | — | |
| W29 | OEM-E9-16 | T4-C1-9 | 0.5 | no route | Injector 5 | — | |
| W30 | OEM-E9-15 | T4-C1-17 | 0.5 | no route | Injector 6 | — | |
| W31 | OEM-E9-62 | T4-C2-10 | 0.5 | no route | MAP sensor (PIM) | — | |
| W32 | OEM-E9-43 | T4-C2-1 | 0.5 | no route | Throttle position (VTA1) | — | |
| W33 | OEM-E9-44 | T4-C2-7 | 0.5 | no route | Coolant temperature (THW) | — | |
| W34 | OEM-E10-23 | T4-C1-5 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W35 | OEM-E10-24 | T4-C1-4 | 0.5 | no route | Main relay control (M-REL) | — | |
| W36 | OEM-E9-71 | T4-C3-9 | 0.5 | no route | O2 heater 1 (HT1) | — | |
| W37 | OEM-E9-72 | T4-C1-3 | 0.5 | no route | O2 heater 2 (HT2) | — | |
| W38 | OEM-E10-22 | T4-C3-22 | 0.5 | no route | Fuel pump control (FPC) | — | |
| W39 | OEM-E10-6 | T4-C3-23 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W40 | OEM-E9-32 | T4-C3-24 | 0.5 | no route | ISC stepper winding | — | |
| W41 | OEM-E9-33 | T4-C3-25 | 0.5 | no route | ISC stepper winding | — | |
| W42 | OEM-E9-34 | T4-C3-10 | 0.5 | no route | ISC stepper winding | — | |
| W43 | OEM-E9-47 | T4-C2-5 | 0.5 | no route | O2 sensor 2 (OX2) | — | |
| W44 | OEM-E9-48 | T4-C2-6 | 0.5 | no route | O2 sensor 1 (OX1) | — | |
| W45 | OEM-E9-45 | T4-C2-25 | 0.5 | no route | Intake air temperature (THA) | — | |
| W46 | OEM-E10-2 | T4-C2-4 | 0.5 | no route | Vehicle speed sensor (SP1) | — | |
| W47 | OEM-E10-21 | T4-C2-14 | 0.5 | no route | Fuel pump diagnostic (DI) | — | |
| W48 | OEM-E9-58 | T4-C2-15 | 0.5 | no route | Ignition confirmation (IGF) | — | |
| W49 | OEM-E10-15 | T4-C2-19 | 0.5 | no route | Electrical load sensor (ELS) | — | |
| W50 | OEM-E10-4 | T4-C3-17 | 0.5 | no route | Brake switch (STP) | — | |
| W51 | OEM-E9-76 | T4-C3-18 | 0.5 | no route | Starter signal (STA) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 3.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 39.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (14)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | INJECTOR_BALLAST | T4 | The 2JZ-GTE injectors (2JZ-GTE fuel injector) are low-impedance, but T4 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 | NET_MERGED | OEM-E9-15 + OEM-E9-19 + T4-C1-17 | 2 different OEM functions share one net: OEM-E9-15 Injector 6; OEM-E9-19 Injector 2 |
| error | NET_MERGED | OEM-E9-16 + OEM-E9-20 + T4-C1-9 | 2 different OEM functions share one net: OEM-E9-16 Injector 5; OEM-E9-20 Injector 1 |
| error | PHYS_REQUIRED_OPEN | T4-C3-27 | T4-C3-27 "Permanent 12v" is required but not wired. |
| error | REQUIRED_UNMAPPED | OEM-E9-52 | Required OEM function "Ignition 6 (IGT6)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E9-53 | Required OEM function "Ignition 5 (IGT5)" (ignition_out) is not connected to the new ECU. |
| warn | DATASET_GAP | T4 C1 | 20 of 34 cavities on T4 C1 have no pin data (2,6,7,8,11,12,15,16,19,20,21,22,23,24,27,28,29,30,32,33). Anything there is invisible to these checks. |
| warn | DATASET_GAP | T4 C2 | 11 of 34 cavities on T4 C2 have no pin data (8,11,13,18,20,23,27,29,30,31,32). Anything there is invisible to these checks. |
| warn | DATASET_GAP | T4 C3 | 20 of 34 cavities on T4 C3 have no pin data (1,2,3,4,5,6,13,14,15,16,19,20,21,28,29,30,31,32,33,34). Anything there is invisible to these checks. |
| warn | NET_FAMILY | OEM-E10-15 ↔ T4-C2-19 | OEM-E10-15 "Electrical load sensor (ELS)" [digital_in] is wired to T4-C2-19 "Analogue 6" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-E10-4 ↔ T4-C3-17 | OEM-E10-4 "Brake switch (STP)" [digital_in] is wired to T4-C3-17 "Analogue 7" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-E9-25 ↔ T4-C2-2 | OEM-E9-25 "Camshaft position 2 (G2)" [trigger_in] is wired to T4-C2-2 "Wheel 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-E9-76 ↔ T4-C3-18 | OEM-E9-76 "Starter signal (STA)" [digital_in] is wired to T4-C3-18 "Analogue 8" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| info | UNMAPPED | OEM | 8 optional OEM pins are not mapped: OEM-E10-1 Ignition switch (IGSW); OEM-E10-16 Tachometer output; OEM-E9-35 ISC stepper winding; OEM-E9-49 Knock sensor 2 (KNK2); OEM-E9-50 Knock sensor 1 (KNK1); OEM-E9-60 Wastegate VSV (boost control); OEM-E9-73 Fuel pressure-up VSV (FPU); OEM-E9-74 Purge VSV (EVAP) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
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-E9 53: Ignition 5 (IGT5): no free ignition output on DTAFast T4 - OEM-E9 52: Ignition 6 (IGT6): no free ignition output on DTAFast T4 - T4-C3 27: Permanent 12v: required by DTAFast T4 but no stock pin feeds it; wire by hand Not wired: - OEM-E9 50: Knock sensor 1 (KNK1): no free knock input on DTAFast T4 - OEM-E9 49: Knock sensor 2 (KNK2): no free knock input on DTAFast T4 - OEM-E10 1: 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); DTAFast T4 has no dedicated key-on input - OEM-E9 35: ISC stepper winding: no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E9 60: Wastegate VSV (boost control): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E9 73: Fuel pressure-up VSV (FPU): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E9 74: Purge VSV (EVAP): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E10 16: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on DTAFast T4
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | DTAFast T4 ECU wiring diagram | https://cdn.shopify.com/s/files/1/0848/7508/4108/files/T4_Wiring_Diagram.pdf?v=1789413067 | — | — | — |
| 4 | vendor_doc | ECUMASTER: ECU2JZ JZA80 2JZ-GTE adapter technical information (knock sensor count) | https://drive.google.com/file/d/15sTEetwLt0aKjuQo6aXODn4EBAkEJrtN/view | archive | 2026-10-05 | 6a4adabba0f5 |
| 4 | vendor_doc | Link SupraLink TS2JZX install manual (JZA80 2JZ-GTE non-VVT) | https://linkecu.com/documentation/TS2JZX.pdf | — | — | — |
| 4 | service_manual | Toyota FSM P1300 Igniter Circuit (2JZ-GTE) — IGT1-6 / IGF ECM terminals | http://97supraturbo.com/Trouble%20Codes/P1300%20Ignitor.pdf | — | — | — |