Toyota Supra A80 1997-2002 JDM (2JZ-GTE VVT-i, single-turbo) → DTAFast T4 (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 | 7: read the Findings page before cutting any wire |
| Size of the job | 55 wires · 12 connectors · 2 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 | T4-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-B78-1 | T4-C3-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-B74-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-B74-31 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-B74-9 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-B75-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | T4-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | T4-C1-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-B74-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-B75-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-B75-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-B78-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | T4-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | T4-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B75-2 | T4-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B74-23 | T4-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-B74-10 | T4-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B74-11 | T4-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B74-12 | T4-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-B74-13 | T4-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B75-5 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B75-6 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B74-1 | T4-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B74-2 | T4-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B74-3 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B74-4 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B74-17 | T4-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B74-18 | T4-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B74-19 | T4-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B74-20 | T4-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B75-9 | T4-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B75-15 | T4-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B75-23 | T4-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B75-16 | T4-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B75-24 | T4-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B75-14 | T4-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B77-13 | T4-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B78-10 | T4-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-B75-4 | T4-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-B76-1 | T4-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B76-2 | T4-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B75-10 | T4-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B75-12 | T4-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B75-22 | T4-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B76-17 | T4-C2-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-B77-25 | T4-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-B76-11 | T4-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-B76-5 | T4-C2-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-B74-25 | T4-C2-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-B75-21 | T4-C2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-B75-20 | T4-C2-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-B74-24 | T4-C2-16 | 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-C1-13 | T4-C1-31 | open (OL) | power ground must not touch +12 V supply | |
| 2 | T4-C1-13 | T4-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 3 | T4-C1-13 | T4-C3-26 | open (OL) | power ground must not touch +12 V supply | |
| 4 | T4-C2-21 | T4-C1-31 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | T4-C2-21 | T4-C2-24 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 6 | T4-C2-21 | T4-C3-26 | open (OL) | sensor ground must not touch +12 V supply | |
| 7 | T4-C2-24 | T4-C1-31 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 8 | T4-C2-24 | T4-C3-26 | open (OL) | 5 V sensor reference 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
OEM-B74
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W26 | — | 0.5 | T4-C1-34 | — | — | — |
| 10 | Cam position (G2) | — | W20 | — | 0.5 | T4-C2-22 | — | — | — |
| 11 | Ignition 1 (IGT, cyl 1&6) | — | W21 | — | 0.5 | T4-C1-10 | — | — | — |
| 12 | Ignition 2 (IGT2, cyl 5&2) | — | W22 | — | 0.5 | T4-C1-18 | — | — | — |
| 13 | Ignition 3 (IGT3, cyl 3&4) | — | W23 | — | 0.5 | T4-C1-1 | — | — | — |
| 15 | Wastegate VSV (PMC) | — | — | — | — | — | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W30 | — | 0.5 | T4-C1-5 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W31 | — | 0.5 | T4-C1-4 | — | — | — |
| 19 | ETCS-i clutch - (CL-) | — | W32 | — | 0.5 | T4-C1-3 | — | — | — |
| 2 | Injector 4 (#40) | — | W27 | — | 0.5 | T4-C1-25 | — | — | — |
| 20 | ETCS-i clutch + (CL+) | — | W33 | — | 0.5 | T4-C3-22 | — | — | — |
| 21 | Power ground (E01) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank/cam sensor return (NE-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE+) | — | W19 | — | 0.5 | T4-C2-12 | — | — | — |
| 24 | Neutral/park switch (NSW) | — | W55 | — | 0.5 | T4-C2-16 | — | — | — |
| 25 | Igniter verification (IGF) | — | W52 | — | 0.5 | T4-C2-15 | — | — | — |
| 27 | Knock sensor 2 (KNK2, rear) | — | — | — | — | — | — | — | — |
| 28 | Knock sensor 1 (KNK1, front) | — | — | — | — | — | — | — | — |
| 3 | Injector 5 (#50) | — | W28 | — | 0.5 | T4-C1-9 | — | — | — |
| 30 | ETCS-i motor shield (GEO1) | — | — | — | — | — | — | — | — |
| 31 | Power ground (E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Injector 6 (#60) | — | W29 | — | 0.5 | T4-C1-17 | — | — | — |
| 5 | Intake air bypass VSV (VSV1) | — | — | — | — | — | — | — | — |
| 7 | ETCS-i motor - (M-) | — | — | — | — | — | — | — | — |
| 8 | ETCS-i motor + (M+) | — | — | — | — | — | — | — | — |
| 9 | ETCS-i ground (ME01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-B75
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Mass air flow (VG) | — | W45 | — | 0.5 | T4-C3-17 | — | — | — |
| 12 | O2 sensor (OX) | — | W46 | — | 0.5 | T4-C3-18 | — | — | — |
| 14 | Coolant temperature (THW) | — | W39 | — | 0.5 | T4-C2-7 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W35 | — | 0.5 | T4-C2-1 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | W37 | — | 0.5 | T4-C2-6 | — | — | — |
| 17 | Power ground (E1) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor power (VC) | — | W18 | — | 0.5 | T4-C2-24 | — | — | — |
| 20 | A/T 2nd-gear indicator (2) | — | W54 | — | 0.5 | T4-C2-3 | — | — | — |
| 21 | A/T 1st-gear indicator (L) | — | W53 | — | 0.5 | T4-C2-34 | — | — | — |
| 22 | Intake air temperature (THA) | — | W47 | — | 0.5 | T4-C2-25 | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W36 | — | 0.5 | T4-C2-5 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | W38 | — | 0.5 | T4-C2-19 | — | — | — |
| 3 | Exhaust gas control VSV (VSV2) | — | — | — | — | — | — | — | — |
| 4 | O2 sensor heater (HT) | — | W42 | — | 0.5 | T4-C3-9 | — | — | — |
| 5 | Injector 1 (#10) | — | W24 | — | 0.5 | T4-C1-9 | — | — | — |
| 6 | Injector 2 (#20) | — | W25 | — | 0.5 | T4-C1-17 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | — | — | — | — | — | — | — |
| 8 | Main oil pressure switch (MOPS) | — | — | — | — | — | — | — | — |
| 9 | Manifold pressure (PIM) | — | W34 | — | 0.5 | T4-C2-10 | — | — | — |
OEM-B76
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/T shift solenoid 1 (S1) | — | W43 | — | 0.5 | T4-C3-25 | — | — | — |
| 10 | OD direct-clutch speed (NCO-) | — | — | — | — | — | — | — | — |
| 11 | No.2 speed sensor return (SP2-) | — | W50 | — | 0.5 | T4-C2-4 | — | — | — |
| 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) | — | W48 | — | 0.5 | T4-C2-17 | — | — | — |
| 2 | A/T shift solenoid 2 (S2) | — | W44 | — | 0.5 | T4-C3-10 | — | — | — |
| 3 | A/T shift solenoid 3 (S3) | — | — | — | — | — | — | — | — |
| 4 | OD direct-clutch speed (NCO+) | — | — | — | — | — | — | — | — |
| 5 | No.2 speed sensor (SP2+) | — | W51 | — | 0.5 | T4-C2-14 | — | — | — |
| 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) | — | W40 | — | 0.5 | T4-C3-23 | — | — | — |
| 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) | — | W49 | — | 0.5 | T4-C2-2 | — | — | — |
| 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) | — | W5 | — | 0.85 | T4-C3-26 | — | — | — |
| 10 | EFI main relay control (M-REL) | — | W41 | — | 0.5 | T4-C3-24 | — | — | — |
| 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) | — | W15 | — | 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 | — | — | W12 | — | 0.5 | OEM-B74-22 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-B75-18 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-B75-19 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-B78-22 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | T4-C2-21 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | T4-C2-33 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W3 | — | 0.85 | OEM-B78-8 | — | — | — |
| 1 | — | — | W1 | — | 0.85 | OEM-B78-16 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-B78-7 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | T4-C1-31 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-B74-21 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-B74-31 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-B74-9 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-B75-17 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | T4-C1-13 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | T4-C1-14 | — | — | — |
T4-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coil 3 | — | W23 | — | 0.5 | OEM-B74-13 | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W32 | — | 0.5 | OEM-B74-19 | — | — | — |
| 4 | PWM 2 | — | W31 | — | 0.5 | OEM-B74-18 | — | — | — |
| 5 | PWM 1 | — | W30 | — | 0.5 | OEM-B74-17 | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W28 | — | 0.5 | OEM-B74-3 | — | — | — |
| 9 | Injector 1 | — | W24 | — | 0.5 | OEM-B75-5 | — | — | — |
| 10 | Coil 1 | — | W21 | — | 0.5 | OEM-B74-11 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Power Ground 1 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Injector 2 | — | W25 | — | 0.5 | OEM-B75-6 | — | — | — |
| 17 | Injector 2 | — | W29 | — | 0.5 | OEM-B74-4 | — | — | — |
| 18 | Coil 2 | — | W22 | — | 0.5 | OEM-B74-12 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
| 25 | Injector 4 | — | W27 | — | 0.5 | OEM-B74-2 | — | — | — |
| 26 | Coil 4 | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W26 | — | 0.5 | OEM-B74-1 | — | — | — |
T4-C2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W35 | — | 0.5 | OEM-B75-15 | — | — | — |
| 2 | Wheel 1 | — | W49 | — | 0.5 | OEM-B77-25 | — | — | — |
| 3 | Analogue 10 | — | W54 | — | 0.5 | OEM-B75-20 | — | — | — |
| 4 | Digital 1 | — | W50 | — | 0.5 | OEM-B76-11 | — | — | — |
| 5 | Analogue 3 | — | W36 | — | 0.5 | OEM-B75-23 | — | — | — |
| 6 | Analogue 4 | — | W37 | — | 0.5 | OEM-B75-16 | — | — | — |
| 7 | Thermistor 1 | — | W39 | — | 0.5 | OEM-B75-14 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | 5v Output | — | — | — | — | — | — | — | — |
| 10 | Analogue 1 | — | W34 | — | 0.5 | OEM-B75-9 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Crank | — | W19 | — | 0.5 | OEM-B74-23 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | W51 | — | 0.5 | OEM-B76-5 | — | — | — |
| 15 | Digital 5 | — | W52 | — | 0.5 | OEM-B74-25 | — | — | — |
| 16 | Analogue 11 | — | W55 | — | 0.5 | OEM-B74-24 | — | — | — |
| 17 | Thermistor 3 | — | W48 | — | 0.5 | OEM-B76-17 | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — |
| 19 | Analogue 6 | — | W38 | — | 0.5 | OEM-B75-24 | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Sensor Ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W20 | — | 0.5 | OEM-B74-10 | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | 5v Output | — | W18 | — | 0.5 | OEM-B75-2 | — | — | — |
| 25 | Thermistor 2 | — | W47 | — | 0.5 | OEM-B75-22 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | W53 | — | 0.5 | OEM-B75-21 | — | — | — |
T4-C3
| 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 | — | W42 | — | 0.5 | OEM-B75-4 | — | — | — |
| 10 | PWM 8 | — | W44 | — | 0.5 | OEM-B76-2 | — | — | — |
| 11 | Lambda 1 Trim Resistor | — | — | — | — | — | — | — | — |
| 12 | Lambda 1 Nernst Voltage | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Analogue 7 | — | W45 | — | 0.5 | OEM-B75-10 | — | — | — |
| 18 | Analogue 8 | — | W46 | — | 0.5 | OEM-B75-12 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W33 | — | 0.5 | OEM-B74-20 | — | — | — |
| 23 | PWM 5 | — | W40 | — | 0.5 | OEM-B77-13 | — | — | — |
| 24 | PWM 6 | — | W41 | — | 0.5 | OEM-B78-10 | — | — | — |
| 25 | PWM 7 | — | W43 | — | 0.5 | OEM-B76-1 | — | — | — |
| 26 | Permanent 12v | — | W5 | — | 0.85 | OEM-B78-1 | — | — | — |
| 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-B74-1 | Injector 3 (#30) | injector_out | T4-C1-34 | Injector 3 | injector_out | single_source | |
| OEM-B74-10 | Cam position (G2) | trigger_in | T4-C2-22 | Cam 1 | trigger_in | single_source | |
| OEM-B74-11 | Ignition 1 (IGT, cyl 1&6) | ignition_out | T4-C1-10 | Coil 1 | ignition_out | single_source | |
| OEM-B74-12 | Ignition 2 (IGT2, cyl 5&2) | ignition_out | T4-C1-18 | Coil 2 | ignition_out | single_source | |
| OEM-B74-13 | Ignition 3 (IGT3, cyl 3&4) | ignition_out | T4-C1-1 | Coil 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 | T4-C1-5 | PWM 1 | low_side_out | single_source | |
| OEM-B74-18 | VVT-i OCV + (OCV+) | low_side_out | T4-C1-4 | PWM 2 | low_side_out | single_source | |
| OEM-B74-19 | ETCS-i clutch - (CL-) | low_side_out | T4-C1-3 | PWM 3 | low_side_out | single_source | |
| OEM-B74-2 | Injector 4 (#40) | injector_out | T4-C1-25 | Injector 4 | injector_out | single_source | |
| OEM-B74-20 | ETCS-i clutch + (CL+) | low_side_out | T4-C3-22 | PWM 4 | low_side_out | single_source | |
| OEM-B74-21 | Power ground (E01) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-B74-22 | Crank/cam sensor return (NE-) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-B74-23 | Crank position (NE+) | trigger_in | T4-C2-12 | Crank | trigger_in | single_source | |
| OEM-B74-24 | Neutral/park switch (NSW) | digital_in | T4-C2-16 | Analogue 11 | analog_in | single_source | |
| OEM-B74-25 | Igniter verification (IGF) | digital_in | T4-C2-15 | Digital 5 | 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 | T4-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-B74-30 | ETCS-i motor shield (GEO1) | shield | — | — | — | single_source | |
| OEM-B74-31 | Power ground (E02) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-B74-4 | Injector 6 (#60) | injector_out | T4-C1-17 | Injector 2 | 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 | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-B75-10 | Mass air flow (VG) | analog_in | T4-C3-17 | Analogue 7 | analog_in | single_source | |
| OEM-B75-12 | O2 sensor (OX) | lambda_nb_in | T4-C3-18 | Analogue 8 | analog_in | single_source | |
| OEM-B75-14 | Coolant temperature (THW) | temp_in | T4-C2-7 | Thermistor 1 | temp_in | single_source | |
| OEM-B75-15 | Accelerator pedal 1 (VPA) | analog_in | T4-C2-1 | Analogue 2 | analog_in | single_source | |
| OEM-B75-16 | Accelerator pedal 2 (VPA2) | analog_in | T4-C2-6 | Analogue 4 | analog_in | single_source | |
| OEM-B75-17 | Power ground (E1) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-B75-18 | Sensor ground (E2) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-B75-19 | MAF ground (EVG) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-B75-2 | Sensor power (VC) | vref | T4-C2-24 | 5v Output | vref | single_source | |
| OEM-B75-20 | A/T 2nd-gear indicator (2) | digital_in | T4-C2-3 | Analogue 10 | analog_in | single_source | |
| OEM-B75-21 | A/T 1st-gear indicator (L) | digital_in | T4-C2-34 | Analogue 9 | analog_in | single_source | |
| OEM-B75-22 | Intake air temperature (THA) | temp_in | T4-C2-25 | Thermistor 2 | temp_in | single_source | |
| OEM-B75-23 | Throttle position 1 (VTA) | analog_in | T4-C2-5 | Analogue 3 | analog_in | single_source | |
| OEM-B75-24 | Throttle position 2 (VTA2) | analog_in | T4-C2-19 | Analogue 6 | 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 | T4-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-B75-5 | Injector 1 (#10) | injector_out | T4-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-B75-6 | Injector 2 (#20) | injector_out | T4-C1-17 | Injector 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 | T4-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-B76-1 | A/T shift solenoid 1 (S1) | low_side_out | T4-C3-25 | PWM 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 | T4-C2-4 | Digital 1 | 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 | T4-C2-17 | Thermistor 3 | temp_in | single_source | |
| OEM-B76-2 | A/T shift solenoid 2 (S2) | low_side_out | T4-C3-10 | PWM 8 | 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 | T4-C2-14 | Digital 4 | 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 | T4-C3-23 | PWM 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 | T4-C2-2 | Wheel 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 | T4-C3-26 | Permanent 12v | power_in | single_source | |
| OEM-B78-10 | EFI main relay control (M-REL) | low_side_out | T4-C3-24 | PWM 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 | T4-C1-31 | Ignition 12v In | 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 | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | 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 | T4-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-B78-8 | EFI main relay power (+B2) | power_in | T4-C1-31 | Ignition 12v In | 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 | T4-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W5 | OEM-B78-1 | T4-C3-26 | 0.85 | no route | Battery constant (BATT) | — | |
| W6 | OEM-B74-21 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W7 | OEM-B74-31 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W8 | OEM-B74-9 | SP-GND-1 | 0.85 | no route | ETCS-i ground (ME01) | — | |
| W9 | OEM-B75-17 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W10 | SP-GND-1 | T4-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W11 | SP-GND-1 | T4-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W12 | OEM-B74-22 | SP-0V-1 | 0.5 | no route | Crank/cam sensor return (NE-) | — | |
| W13 | OEM-B75-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W14 | OEM-B75-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W15 | OEM-B78-22 | SP-0V-1 | 0.5 | no route | Switch ground (EC) | — | |
| W16 | SP-0V-1 | T4-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W17 | SP-0V-1 | T4-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W18 | OEM-B75-2 | T4-C2-24 | 0.5 | no route | Sensor power (VC) | — | |
| W19 | OEM-B74-23 | T4-C2-12 | 0.5 | no route | Crank position (NE+) | — | |
| W20 | OEM-B74-10 | T4-C2-22 | 0.5 | no route | Cam position (G2) | — | |
| W21 | OEM-B74-11 | T4-C1-10 | 0.5 | no route | Ignition 1 (IGT, cyl 1&6) | — | |
| W22 | OEM-B74-12 | T4-C1-18 | 0.5 | no route | Ignition 2 (IGT2, cyl 5&2) | — | |
| W23 | OEM-B74-13 | T4-C1-1 | 0.5 | no route | Ignition 3 (IGT3, cyl 3&4) | — | |
| W24 | OEM-B75-5 | T4-C1-9 | 0.5 | no route | Injector 1 (#10) | — | |
| W25 | OEM-B75-6 | T4-C1-17 | 0.5 | no route | Injector 2 (#20) | — | |
| W26 | OEM-B74-1 | T4-C1-34 | 0.5 | no route | Injector 3 (#30) | — | |
| W27 | OEM-B74-2 | T4-C1-25 | 0.5 | no route | Injector 4 (#40) | — | |
| W28 | OEM-B74-3 | T4-C1-9 | 0.5 | no route | Injector 5 (#50) | — | |
| W29 | OEM-B74-4 | T4-C1-17 | 0.5 | no route | Injector 6 (#60) | — | |
| W30 | OEM-B74-17 | T4-C1-5 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W31 | OEM-B74-18 | T4-C1-4 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W32 | OEM-B74-19 | T4-C1-3 | 0.5 | no route | ETCS-i clutch - (CL-) | — | |
| W33 | OEM-B74-20 | T4-C3-22 | 0.5 | no route | ETCS-i clutch + (CL+) | — | |
| W34 | OEM-B75-9 | T4-C2-10 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W35 | OEM-B75-15 | T4-C2-1 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W36 | OEM-B75-23 | T4-C2-5 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W37 | OEM-B75-16 | T4-C2-6 | 0.5 | no route | Accelerator pedal 2 (VPA2) | — | |
| W38 | OEM-B75-24 | T4-C2-19 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W39 | OEM-B75-14 | T4-C2-7 | 0.5 | no route | Coolant temperature (THW) | — | |
| W40 | OEM-B77-13 | T4-C3-23 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W41 | OEM-B78-10 | T4-C3-24 | 0.5 | no route | EFI main relay control (M-REL) | — | |
| W42 | OEM-B75-4 | T4-C3-9 | 0.5 | no route | O2 sensor heater (HT) | — | |
| W43 | OEM-B76-1 | T4-C3-25 | 0.5 | no route | A/T shift solenoid 1 (S1) | — | |
| W44 | OEM-B76-2 | T4-C3-10 | 0.5 | no route | A/T shift solenoid 2 (S2) | — | |
| W45 | OEM-B75-10 | T4-C3-17 | 0.5 | no route | Mass air flow (VG) | — | |
| W46 | OEM-B75-12 | T4-C3-18 | 0.5 | no route | O2 sensor (OX) | — | |
| W47 | OEM-B75-22 | T4-C2-25 | 0.5 | no route | Intake air temperature (THA) | — | |
| W48 | OEM-B76-17 | T4-C2-17 | 0.5 | no route | A/T oil temperature (OIL) | — | |
| W49 | OEM-B77-25 | T4-C2-2 | 0.5 | no route | No.1 speed sensor (SPD) | — | |
| W50 | OEM-B76-11 | T4-C2-4 | 0.5 | no route | No.2 speed sensor return (SP2-) | — | |
| W51 | OEM-B76-5 | T4-C2-14 | 0.5 | no route | No.2 speed sensor (SP2+) | — | |
| W52 | OEM-B74-25 | T4-C2-15 | 0.5 | no route | Igniter verification (IGF) | — | |
| W53 | OEM-B75-21 | T4-C2-34 | 0.5 | no route | A/T 1st-gear indicator (L) | — | |
| W54 | OEM-B75-20 | T4-C2-3 | 0.5 | no route | A/T 2nd-gear indicator (2) | — | |
| W55 | OEM-B74-24 | T4-C2-16 | 0.5 | no route | Neutral/park switch (NSW) | — |
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) | 42.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (15)
| 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-B74-3 + OEM-B75-5 + T4-C1-9 | 2 different OEM functions share one net: OEM-B74-3 Injector 5 (#50); OEM-B75-5 Injector 1 (#10) |
| error | NET_MERGED | OEM-B74-4 + OEM-B75-6 + T4-C1-17 | 2 different OEM functions share one net: OEM-B74-4 Injector 6 (#60); OEM-B75-6 Injector 2 (#20) |
| error | PHYS_REQUIRED_OPEN | T4-C3-27 | T4-C3-27 "Permanent 12v" is required but not wired. |
| 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 | 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-B74-24 ↔ T4-C2-16 | OEM-B74-24 "Neutral/park switch (NSW)" [digital_in] is wired to T4-C2-16 "Analogue 11" [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-B75-20 ↔ T4-C2-3 | OEM-B75-20 "A/T 2nd-gear indicator (2)" [digital_in] is wired to T4-C2-3 "Analogue 10" [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-B75-21 ↔ T4-C2-34 | OEM-B75-21 "A/T 1st-gear indicator (L)" [digital_in] is wired to T4-C2-34 "Analogue 9" [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 | 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 | 50 optional OEM pins are not mapped: OEM-B74-15 Wastegate VSV (PMC); OEM-B74-27 Knock sensor 2 (KNK2, rear); OEM-B74-28 Knock sensor 1 (KNK1, front); OEM-B74-30 ETCS-i motor shield (GEO1); OEM-B74-5 Intake air bypass VSV (VSV1); 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-B76-3 A/T shift solenoid 3 (S3); OEM-B76-4 OD direct-clutch speed (NCO+); 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-B78-11 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 (0)
| Code | Subject | Reason | By |
|---|
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 - Only 4 ignition outputs for 6 cylinders: wasted spark (pair coils per firing order) - Only 4 injector outputs for 6 injectors: batch / semi-sequential injection Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-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); DTAFast T4 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 - T4-C3 27: Permanent 12v: required by DTAFast T4 but no stock pin feeds it; wire by hand Not wired: - OEM-B74 28: Knock sensor 1 (KNK1, front): no free knock input on DTAFast T4 - OEM-B74 27: Knock sensor 2 (KNK2, rear): no free knock input on DTAFast T4 - OEM-B74 30: ETCS-i motor shield (GEO1): no shield pin on DTAFast T4 - OEM-B76 3: A/T shift solenoid 3 (S3): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 6: A/T shift solenoid 4 (S4): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B74 15: Wastegate VSV (PMC): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B74 5: Intake air bypass VSV (VSV1): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B75 3: Exhaust gas control VSV (VSV2): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B75 7: EVAP purge VSV (PRG): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 12: Exhaust bypass VSV (VSV3): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 13: A/T lock-up solenoid - (SLU-): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 14: A/T accumulator solenoid - (SLN-): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 15: A/T line-pressure solenoid - (SLT-): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 16: Fuel pressure-up VSV (FPU): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 7: A/T lock-up solenoid + (SLU+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 8: A/T accumulator solenoid + (SLN+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B76 9: A/T line-pressure solenoid + (SLT+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B78 2: TRAC snow-mode light (SNOW): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B78 5: Fuel pump control (FPC): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B78 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 1: TRAC enable light (IND): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 14: TRAC active light (CIND): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 17: A/T meter LCD (LPO3): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 18: A/T meter LCD (SPTL): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 19: Reverse buzzer (BZ): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 3: A/T meter LCD (LPO1): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B79 4: A/T meter LCD (LPO2): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-B77 20: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on DTAFast T4 - OEM-B76 10: OD direct-clutch speed (NCO-): no free frequency_in/switch_in on DTAFast T4 - OEM-B76 4: OD direct-clutch speed (NCO+): no free frequency_in/switch_in on DTAFast T4 - OEM-B77 18: Rear right wheel speed (RRO): no free frequency_in/switch_in on DTAFast T4 - OEM-B77 19: Rear left wheel speed (RLO): no free frequency_in/switch_in on DTAFast T4 - OEM-B77 27: Road speed (RSPD): no free frequency_in/switch_in on DTAFast T4 - OEM-B78 4: Fuel pump diagnostic (DI): no free frequency_in/switch_in on DTAFast T4 - OEM-B79 7: Front right wheel speed (FRO): no free frequency_in/switch_in on DTAFast T4 - OEM-B79 8: Front left wheel speed (FLO): no free frequency_in/switch_in on DTAFast T4 - OEM-B75 8: Main oil pressure switch (MOPS): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 1: A/C request (AC): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 14: A/T shift down (SFTD): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 16: A/T reverse indicator (R): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 2: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 21: ABS active (ABS): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 26: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 4: A/T shift up (SFTU): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 5: Diagnostic/timing check (TC): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 6: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B77 7: A/T manual position (3): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B78 3: TRAC snow-mode switch (SNWI): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B79 2: TRAC off switch (MSW): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-B78 11: Serial diagnostic (SIL): no free k_line 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 | — | — | — |
| 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 | — | — | — |