Scion FR-S (ZN6, FA20) → DTAFast T4+ (auto)
Scion FR-S (ZN6, FA20) — DTAFast — T4+
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-09
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 | 68 wires · 11 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-A33-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A34-6 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | T4-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A33-2 | T4-C3-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A33-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A34-1 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A34-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A34-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A36-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-A36-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | T4-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | T4-C1-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A33-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A34-27 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A35-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A35-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A36-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | T4-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | T4-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A34-34 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A35-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A35-22 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A36-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-5V1-1 | T4-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A34-16 | T4-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A34-14 | T4-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A34-26 | T4-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A36-21 | T4-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A36-10 | T4-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A36-31 | T4-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A36-8 | T4-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A36-12 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A36-14 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A36-22 | T4-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A36-25 | T4-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A36-24 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A36-32 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A36-13 | T4-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A36-23 | T4-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A36-1 | T4-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A36-2 | T4-C1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A35-13 | T4-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A35-12 | T4-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A35-11 | T4-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A33-20 | T4-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A35-17 | T4-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A35-35 | T4-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A35-5 | T4-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A35-7 | T4-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A34-5 | T4-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A33-22 | T4-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A34-20 | T4-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A35-31 | T4-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A36-28 | T4-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A35-23 | T4-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A36-18 | T4-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A34-21 | T4-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-A36-30 | T4-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A33-12 | T4-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-A36-20 | T4-C2-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-A33-8 | T4-C2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-A34-11 | T4-C2-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-A34-31 | T4-C2-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-A33-14 | T4-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-A33-15 | T4-C2-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-A33-16 | T4-C2-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-A33-19 | T4-C2-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-A33-18 | T4-C2-28 | 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-C3-26 | T4-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 4 | T4-C3-26 | T4-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 5 | T4-C1-13 | T4-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | T4-C1-31 | T4-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | T4-C2-21 | T4-C2-24 | open (OL) | sensor ground 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-A33
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU power (+B2, main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 12 | Intake air temperature (THA, in MAF) | — | W59 | — | 0.5 | T4-C2-25 | — | — | — |
| 14 | Starter signal (STSW2) | — | W64 | — | 0.5 | T4-C2-4 | — | — | — |
| 15 | Clutch switch (CLSW) | — | W65 | — | 0.5 | T4-C2-14 | — | — | — |
| 16 | Neutral switch (NSW) | — | W66 | — | 0.5 | T4-C2-15 | — | — | — |
| 17 | Starter signal (STSW2) | — | — | — | — | — | — | — | — |
| 18 | CAN low (CANL) | — | W68 | — | 0.5 | T4-C2-28 | — | — | — |
| 19 | CAN high (CANH) | — | W67 | — | 0.5 | T4-C2-26 | — | — | — |
| 2 | Battery constant (BATT, memory) | — | W4 | — | 0.85 | T4-C3-26 | — | — | — |
| 20 | Blower relay (HB) | — | W45 | — | 0.5 | T4-C3-22 | — | — | — |
| 22 | Mass air flow (VG) | — | W51 | — | 0.5 | T4-C2-10 | — | — | — |
| 27 | Ignition switch sense (IGSW, IG2 relay) | — | — | — | — | — | — | — | — |
| 28 | Shield ground (SLE2) | — | — | — | — | — | — | — | — |
| 29 | MAF sensor ground (E2G) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Stop light switch (ST1-) | — | — | — | — | — | — | — | — |
| 4 | Power ground (EC) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Stop light switch (STP) | — | — | — | — | — | — | — | — |
| 8 | A/C pressure sensor (ACP) | — | W61 | — | 0.5 | T4-C2-34 | — | — | — |
OEM-A34
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Power ground (E03) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | DI injector confirmation (IJF1) | — | W62 | — | 0.5 | T4-C2-3 | — | — | — |
| 13 | High-pressure fuel pump spill valve (FPF) | — | — | — | — | — | — | — | — |
| 14 | VVT cam sensor exhaust bank 1 (EV1+) | — | W26 | — | 0.5 | T4-C2-22 | — | — | — |
| 15 | VVT cam sensor intake bank 2 (VV2+) | — | — | — | — | — | — | — | — |
| 16 | Crank position (NE+) | — | W25 | — | 0.5 | T4-C2-12 | — | — | — |
| 17 | Knock sensor 2 (KNK2) | — | — | — | — | — | — | — | — |
| 18 | A/F ratio sensor (A1A-) | — | — | — | — | — | — | — | — |
| 19 | A/F ratio sensor (A1A+) | — | — | — | — | — | — | — | — |
| 2 | Power ground (E04) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Manifold absolute pressure (PIM) | — | W52 | — | 0.5 | T4-C2-1 | — | — | — |
| 21 | Heated oxygen sensor (OX1B, rear) | — | W57 | — | 0.5 | T4-C3-18 | — | — | — |
| 25 | VVT cam sensor exhaust bank 2 (EV2+) | — | — | — | — | — | — | — | — |
| 26 | VVT cam sensor intake bank 1 (VV1+) | — | W27 | — | 0.5 | T4-C2-2 | — | — | — |
| 27 | Crank position return (NE-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | — | — | — | — | — | — | — |
| 29 | Shield ground (EKNK) | — | — | — | — | — | — | — | — |
| 3 | Power ground (E05) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Shield ground (SLE1) | — | — | — | — | — | — | — | — |
| 31 | DI injector confirmation (IJF2) | — | W63 | — | 0.5 | T4-C2-16 | — | — | — |
| 32 | High-pressure fuel pump spill valve (FPD) | — | — | — | — | — | — | — | — |
| 34 | OCV power source (VCV, 5V) | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 35 | Shield ground (SLE3) | — | — | — | — | — | — | — | — |
| 5 | A/F ratio sensor heater (HA1A) | — | W50 | — | 0.5 | T4-C3-9 | — | — | — |
| 6 | ECU power (+B, main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Fuel pressure sensor (PR) | — | — | — | — | — | — | — | — |
OEM-A35
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Canister vent valve (VPMP) | — | — | — | — | — | — | — | — |
| 10 | Fuel pump control monitor (DI) | — | — | — | — | — | — | — | — |
| 11 | Cooling fan relay 3 (FAN1) | — | W44 | — | 0.5 | T4-C1-3 | — | — | — |
| 12 | Cooling fan relay 2 (FAN2) | — | W43 | — | 0.5 | T4-C1-4 | — | — | — |
| 13 | EFI main relay 1 (SSHUT) | — | W42 | — | 0.5 | T4-C1-5 | — | — | — |
| 15 | Tachometer output (TACH) | — | — | — | — | — | — | — | — |
| 17 | ETCS relay (MCR) | — | W46 | — | 0.5 | T4-C3-23 | — | — | — |
| 19 | Fuel pump control (FPC) | — | — | — | — | — | — | — | — |
| 20 | Canister pressure sensor (PPMP) | — | — | — | — | — | — | — | — |
| 21 | Accelerator pedal 5V supply (VCPA) | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Accelerator pedal 5V supply (VCP2) | — | W22 | — | 0.5 | SP-5V1-1 | — | — | — |
| 23 | Accelerator pedal position (VPA) | — | W55 | — | 0.5 | T4-C2-19 | — | — | — |
| 26 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 29 | Accelerator pedal ground (EPA) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Accelerator pedal ground (EPA2) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Accelerator pedal position 2 (VPA2) | — | W53 | — | 0.5 | T4-C2-5 | — | — | — |
| 35 | A/C clutch relay (AC) | — | W47 | — | 0.5 | T4-C3-24 | — | — | — |
| 5 | Injector relay (IREL) | — | W48 | — | 0.5 | T4-C3-25 | — | — | — |
| 7 | ETCS relay (+BM) | — | W49 | — | 0.5 | T4-C3-10 | — | — | — |
| 8 | Leak detection pump (MPMP) | — | — | — | — | — | — | — | — |
OEM-A36
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Throttle actuator motor - (M-) | — | W40 | — | 0.5 | T4-C1-6 | — | — | — |
| 10 | Ignition coil 2 (IGT2) | — | W29 | — | 0.5 | T4-C1-18 | — | — | — |
| 11 | Purge valve (PRG) | — | — | — | — | — | — | — | — |
| 12 | Injector 1 port (#10) | — | W32 | — | 0.5 | T4-C1-9 | — | — | — |
| 13 | Injector 4 port (#40) | — | W38 | — | 0.5 | T4-C1-34 | — | — | — |
| 14 | Injector 1 direct (#1) | — | W33 | — | 0.5 | T4-C1-17 | — | — | — |
| 16 | OCV intake bank 2 (OC2) | — | — | — | — | — | — | — | — |
| 17 | OCV intake bank 1 (OC1) | — | — | — | — | — | — | — | — |
| 18 | Throttle position (VTA1) | — | W56 | — | 0.5 | T4-C3-17 | — | — | — |
| 19 | Sensor 5V supply (VC) | — | W23 | — | 0.5 | SP-5V1-1 | — | — | — |
| 2 | Throttle actuator motor + (M+) | — | W41 | — | 0.5 | T4-C1-7 | — | — | — |
| 20 | Oil temperature (OT) | — | W60 | — | 0.5 | T4-C2-17 | — | — | — |
| 21 | Ignition coil 1 (IGT1) | — | W28 | — | 0.5 | T4-C1-10 | — | — | — |
| 22 | Injector 2 port (#20) | — | W34 | — | 0.5 | T4-C1-34 | — | — | — |
| 23 | Injector 4 direct (#4) | — | W39 | — | 0.5 | T4-C1-25 | — | — | — |
| 24 | Injector 3 direct (#3) | — | W36 | — | 0.5 | T4-C1-9 | — | — | — |
| 25 | Injector 2 direct (#2) | — | W35 | — | 0.5 | T4-C1-25 | — | — | — |
| 28 | Throttle position 2 (VTA2) | — | W54 | — | 0.5 | T4-C2-6 | — | — | — |
| 29 | Sensor ground (E1) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Power ground (E02) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Engine coolant temperature (THW) | — | W58 | — | 0.5 | T4-C2-7 | — | — | — |
| 31 | Ignition coil 3 (IGT3) | — | W30 | — | 0.5 | T4-C1-1 | — | — | — |
| 32 | Injector 3 port (#30) | — | W37 | — | 0.5 | T4-C1-17 | — | — | — |
| 4 | Power ground (E01) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | OCV exhaust bank 2 (OE2) | — | — | — | — | — | — | — | — |
| 6 | Heated oxygen sensor heater (HT1B) | — | — | — | — | — | — | — | — |
| 7 | OCV exhaust bank 1 (OE1) | — | — | — | — | — | — | — | — |
| 8 | Ignition coil 4 (IGT4) | — | W31 | — | 0.5 | T4-C1-26 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-A33-29 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-A34-27 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-A35-29 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-A35-30 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-A36-29 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | T4-C2-21 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | T4-C2-33 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A33-1 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A34-6 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | T4-C1-31 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W20 | — | 0.5 | OEM-A34-34 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-A35-21 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-A35-22 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | OEM-A36-19 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | T4-C2-24 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | OEM-A34-3 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A33-4 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A34-1 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A34-2 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A36-3 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-A36-4 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | T4-C1-13 | — | — | — |
| 1 | — | — | W12 | — | 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 | — | W30 | — | 0.5 | OEM-A36-31 | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W44 | — | 0.5 | OEM-A35-11 | — | — | — |
| 4 | PWM 2 | — | W43 | — | 0.5 | OEM-A35-12 | — | — | — |
| 5 | PWM 1 | — | W42 | — | 0.5 | OEM-A35-13 | — | — | — |
| 6 | Motor 1 + | — | W40 | — | 0.5 | OEM-A36-1 | — | — | — |
| 7 | Motor 1 - | — | W41 | — | 0.5 | OEM-A36-2 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W36 | — | 0.5 | OEM-A36-24 | — | — | — |
| 9 | Injector 1 | — | W32 | — | 0.5 | OEM-A36-12 | — | — | — |
| 10 | Coil 1 | — | W28 | — | 0.5 | OEM-A36-21 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Power Ground 1 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Injector 2 | — | W33 | — | 0.5 | OEM-A36-14 | — | — | — |
| 17 | Injector 2 | — | W37 | — | 0.5 | OEM-A36-32 | — | — | — |
| 18 | Coil 2 | — | W29 | — | 0.5 | OEM-A36-10 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
| 25 | Injector 4 | — | W35 | — | 0.5 | OEM-A36-25 | — | — | — |
| 25 | Injector 4 | — | W39 | — | 0.5 | OEM-A36-23 | — | — | — |
| 26 | Coil 4 | — | W31 | — | 0.5 | OEM-A36-8 | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W38 | — | 0.5 | OEM-A36-13 | — | — | — |
| 34 | Injector 3 | — | W34 | — | 0.5 | OEM-A36-22 | — | — | — |
T4-C2
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W52 | — | 0.5 | OEM-A34-20 | — | — | — |
| 2 | Wheel 1 | — | W27 | — | 0.5 | OEM-A34-26 | — | — | — |
| 3 | Analogue 10 | — | W62 | — | 0.5 | OEM-A34-11 | — | — | — |
| 4 | Digital 1 | — | W64 | — | 0.5 | OEM-A33-14 | — | — | — |
| 5 | Analogue 3 | — | W53 | — | 0.5 | OEM-A35-31 | — | — | — |
| 6 | Analogue 4 | — | W54 | — | 0.5 | OEM-A36-28 | — | — | — |
| 7 | Thermistor 1 | — | W58 | — | 0.5 | OEM-A36-30 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | 5v Output | — | — | — | — | — | — | — | — |
| 10 | Analogue 1 | — | W51 | — | 0.5 | OEM-A33-22 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Crank | — | W25 | — | 0.5 | OEM-A34-16 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | W65 | — | 0.5 | OEM-A33-15 | — | — | — |
| 15 | Digital 5 | — | W66 | — | 0.5 | OEM-A33-16 | — | — | — |
| 16 | Analogue 11 | — | W63 | — | 0.5 | OEM-A34-31 | — | — | — |
| 17 | Thermistor 3 | — | W60 | — | 0.5 | OEM-A36-20 | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — |
| 19 | Analogue 6 | — | W55 | — | 0.5 | OEM-A35-23 | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Sensor Ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W26 | — | 0.5 | OEM-A34-14 | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | 5v Output | — | W24 | — | 0.5 | SP-5V1-1 | — | — | — |
| 25 | Thermistor 2 | — | W59 | — | 0.5 | OEM-A33-12 | — | — | — |
| 26 | CAN High | — | W67 | — | 0.5 | OEM-A33-19 | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | W68 | — | 0.5 | OEM-A33-18 | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | W61 | — | 0.5 | OEM-A33-8 | — | — | — |
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 | — | W50 | — | 0.5 | OEM-A34-5 | — | — | — |
| 10 | PWM 8 | — | W49 | — | 0.5 | OEM-A35-7 | — | — | — |
| 11 | Lambda 1 Trim Resistor | — | — | — | — | — | — | — | — |
| 12 | Lambda 1 Nernst Voltage | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Analogue 7 | — | W56 | — | 0.5 | OEM-A36-18 | — | — | — |
| 18 | Analogue 8 | — | W57 | — | 0.5 | OEM-A34-21 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W45 | — | 0.5 | OEM-A33-20 | — | — | — |
| 23 | PWM 5 | — | W46 | — | 0.5 | OEM-A35-17 | — | — | — |
| 24 | PWM 6 | — | W47 | — | 0.5 | OEM-A35-35 | — | — | — |
| 25 | PWM 7 | — | W48 | — | 0.5 | OEM-A35-5 | — | — | — |
| 26 | Permanent 12v | — | W4 | — | 0.85 | OEM-A33-2 | — | — | — |
| 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-A33-1 | ECU power (+B2, main relay) | power_in | T4-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-A33-12 | Intake air temperature (THA, in MAF) | temp_in | T4-C2-25 | Thermistor 2 | temp_in | single_source | |
| OEM-A33-14 | Starter signal (STSW2) | digital_in | T4-C2-4 | Digital 1 | digital_in | single_source | |
| OEM-A33-15 | Clutch switch (CLSW) | digital_in | T4-C2-14 | Digital 4 | digital_in | single_source | |
| OEM-A33-16 | Neutral switch (NSW) | digital_in | T4-C2-15 | Digital 5 | digital_in | single_source | |
| OEM-A33-17 | Starter signal (STSW2) | digital_in | — | — | — | single_source | |
| OEM-A33-18 | CAN low (CANL) | can_l | T4-C2-28 | CAN Low | can_l | single_source | |
| OEM-A33-19 | CAN high (CANH) | can_h | T4-C2-26 | CAN High | can_h | single_source | |
| OEM-A33-2 | Battery constant (BATT, memory) | power_in | T4-C3-26 | Permanent 12v | power_in | single_source | |
| OEM-A33-20 | Blower relay (HB) | low_side_out | T4-C3-22 | PWM 4 | low_side_out | single_source | |
| OEM-A33-22 | Mass air flow (VG) | analog_in | T4-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-A33-27 | Ignition switch sense (IGSW, IG2 relay) | digital_in | — | — | — | single_source | |
| OEM-A33-28 | Shield ground (SLE2) | shield | — | — | — | single_source | |
| OEM-A33-29 | MAF sensor ground (E2G) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A33-3 | Stop light switch (ST1-) | digital_in | — | — | — | single_source | |
| OEM-A33-4 | Power ground (EC) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A33-7 | Stop light switch (STP) | digital_in | — | — | — | single_source | |
| OEM-A33-8 | A/C pressure sensor (ACP) | analog_in | T4-C2-34 | Analogue 9 | analog_in | single_source | |
| OEM-A34-1 | Power ground (E03) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A34-11 | DI injector confirmation (IJF1) | analog_in | T4-C2-3 | Analogue 10 | analog_in | single_source | |
| OEM-A34-13 | High-pressure fuel pump spill valve (FPF) | low_side_out | — | — | — | single_source | |
| OEM-A34-14 | VVT cam sensor exhaust bank 1 (EV1+) | trigger_in | T4-C2-22 | Cam 1 | trigger_in | single_source | |
| OEM-A34-15 | VVT cam sensor intake bank 2 (VV2+) | trigger_in | — | — | — | single_source | |
| OEM-A34-16 | Crank position (NE+) | trigger_in | T4-C2-12 | Crank | trigger_in | single_source | |
| OEM-A34-17 | Knock sensor 2 (KNK2) | knock_in | — | — | — | single_source | |
| OEM-A34-18 | A/F ratio sensor (A1A-) | — | — | — | — | single_source | |
| OEM-A34-19 | A/F ratio sensor (A1A+) | — | — | — | — | single_source | |
| OEM-A34-2 | Power ground (E04) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A34-20 | Manifold absolute pressure (PIM) | analog_in | T4-C2-1 | Analogue 2 | analog_in | single_source | |
| OEM-A34-21 | Heated oxygen sensor (OX1B, rear) | lambda_nb_in | T4-C3-18 | Analogue 8 | analog_in | single_source | |
| OEM-A34-25 | VVT cam sensor exhaust bank 2 (EV2+) | trigger_in | — | — | — | single_source | |
| OEM-A34-26 | VVT cam sensor intake bank 1 (VV1+) | trigger_in | T4-C2-2 | Wheel 1 | digital_in | single_source | |
| OEM-A34-27 | Crank position return (NE-) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A34-28 | Knock sensor 1 (KNK1) | knock_in | — | — | — | single_source | |
| OEM-A34-29 | Shield ground (EKNK) | shield | — | — | — | single_source | |
| OEM-A34-3 | Power ground (E05) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A34-30 | Shield ground (SLE1) | shield | — | — | — | single_source | |
| OEM-A34-31 | DI injector confirmation (IJF2) | analog_in | T4-C2-16 | Analogue 11 | analog_in | single_source | |
| OEM-A34-32 | High-pressure fuel pump spill valve (FPD) | low_side_out | — | — | — | single_source | |
| OEM-A34-34 | OCV power source (VCV, 5V) | vref | T4-C2-24 | 5v Output | vref | single_source | |
| OEM-A34-35 | Shield ground (SLE3) | shield | — | — | — | single_source | |
| OEM-A34-5 | A/F ratio sensor heater (HA1A) | low_side_out | T4-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-A34-6 | ECU power (+B, main relay) | power_in | T4-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-A34-9 | Fuel pressure sensor (PR) | analog_in | — | — | — | single_source | |
| OEM-A35-1 | Canister vent valve (VPMP) | low_side_out | — | — | — | single_source | |
| OEM-A35-10 | Fuel pump control monitor (DI) | analog_in | — | — | — | single_source | |
| OEM-A35-11 | Cooling fan relay 3 (FAN1) | low_side_out | T4-C1-3 | PWM 3 | low_side_out | single_source | |
| OEM-A35-12 | Cooling fan relay 2 (FAN2) | low_side_out | T4-C1-4 | PWM 2 | low_side_out | single_source | |
| OEM-A35-13 | EFI main relay 1 (SSHUT) | low_side_out | T4-C1-5 | PWM 1 | low_side_out | single_source | |
| OEM-A35-15 | Tachometer output (TACH) | tacho_out | — | — | — | single_source | |
| OEM-A35-17 | ETCS relay (MCR) | low_side_out | T4-C3-23 | PWM 5 | low_side_out | single_source | |
| OEM-A35-19 | Fuel pump control (FPC) | low_side_out | — | — | — | single_source | |
| OEM-A35-20 | Canister pressure sensor (PPMP) | analog_in | — | — | — | single_source | |
| OEM-A35-21 | Accelerator pedal 5V supply (VCPA) | vref | T4-C2-24 | 5v Output | vref | single_source | |
| OEM-A35-22 | Accelerator pedal 5V supply (VCP2) | vref | T4-C2-24 | 5v Output | vref | single_source | |
| OEM-A35-23 | Accelerator pedal position (VPA) | analog_in | T4-C2-19 | Analogue 6 | analog_in | single_source | |
| OEM-A35-26 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-A35-29 | Accelerator pedal ground (EPA) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A35-30 | Accelerator pedal ground (EPA2) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A35-31 | Accelerator pedal position 2 (VPA2) | analog_in | T4-C2-5 | Analogue 3 | analog_in | single_source | |
| OEM-A35-35 | A/C clutch relay (AC) | low_side_out | T4-C3-24 | PWM 6 | low_side_out | single_source | |
| OEM-A35-5 | Injector relay (IREL) | low_side_out | T4-C3-25 | PWM 7 | low_side_out | single_source | |
| OEM-A35-7 | ETCS relay (+BM) | low_side_out | T4-C3-10 | PWM 8 | low_side_out | single_source | |
| OEM-A35-8 | Leak detection pump (MPMP) | low_side_out | — | — | — | single_source | |
| OEM-A36-1 | Throttle actuator motor - (M-) | hbridge_out | T4-C1-6 | Motor 1 + | hbridge_out | single_source | |
| OEM-A36-10 | Ignition coil 2 (IGT2) | ignition_out | T4-C1-18 | Coil 2 | ignition_out | single_source | |
| OEM-A36-11 | Purge valve (PRG) | low_side_out | — | — | — | single_source | |
| OEM-A36-12 | Injector 1 port (#10) | injector_out | T4-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-A36-13 | Injector 4 port (#40) | injector_out | T4-C1-34 | Injector 3 | injector_out | single_source | |
| OEM-A36-14 | Injector 1 direct (#1) | injector_out | T4-C1-17 | Injector 2 | injector_out | single_source | |
| OEM-A36-16 | OCV intake bank 2 (OC2) | low_side_out | — | — | — | single_source | |
| OEM-A36-17 | OCV intake bank 1 (OC1) | low_side_out | — | — | — | single_source | |
| OEM-A36-18 | Throttle position (VTA1) | analog_in | T4-C3-17 | Analogue 7 | analog_in | single_source | |
| OEM-A36-19 | Sensor 5V supply (VC) | vref | T4-C2-24 | 5v Output | vref | single_source | |
| OEM-A36-2 | Throttle actuator motor + (M+) | hbridge_out | T4-C1-7 | Motor 1 - | hbridge_out | single_source | |
| OEM-A36-20 | Oil temperature (OT) | temp_in | T4-C2-17 | Thermistor 3 | temp_in | single_source | |
| OEM-A36-21 | Ignition coil 1 (IGT1) | ignition_out | T4-C1-10 | Coil 1 | ignition_out | single_source | |
| OEM-A36-22 | Injector 2 port (#20) | injector_out | T4-C1-34 | Injector 3 | injector_out | single_source | |
| OEM-A36-23 | Injector 4 direct (#4) | injector_out | T4-C1-25 | Injector 4 | injector_out | single_source | |
| OEM-A36-24 | Injector 3 direct (#3) | injector_out | T4-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-A36-25 | Injector 2 direct (#2) | injector_out | T4-C1-25 | Injector 4 | injector_out | single_source | |
| OEM-A36-28 | Throttle position 2 (VTA2) | analog_in | T4-C2-6 | Analogue 4 | analog_in | single_source | |
| OEM-A36-29 | Sensor ground (E1) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A36-3 | Power ground (E02) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A36-30 | Engine coolant temperature (THW) | temp_in | T4-C2-7 | Thermistor 1 | temp_in | single_source | |
| OEM-A36-31 | Ignition coil 3 (IGT3) | ignition_out | T4-C1-1 | Coil 3 | ignition_out | single_source | |
| OEM-A36-32 | Injector 3 port (#30) | injector_out | T4-C1-17 | Injector 2 | injector_out | single_source | |
| OEM-A36-4 | Power ground (E01) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A36-5 | OCV exhaust bank 2 (OE2) | low_side_out | — | — | — | single_source | |
| OEM-A36-6 | Heated oxygen sensor heater (HT1B) | low_side_out | — | — | — | single_source | |
| OEM-A36-7 | OCV exhaust bank 1 (OE1) | low_side_out | — | — | — | single_source | |
| OEM-A36-8 | Ignition coil 4 (IGT4) | ignition_out | T4-C1-26 | Coil 4 | ignition_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A33-1 | SP-14V-1 | 0.85 | no route | ECU power (+B2, main relay) | — | |
| W2 | OEM-A34-6 | SP-14V-1 | 0.85 | no route | ECU power (+B, main relay) | — | |
| W3 | SP-14V-1 | T4-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W4 | OEM-A33-2 | T4-C3-26 | 0.85 | no route | Battery constant (BATT, memory) | — | |
| W5 | OEM-A33-4 | SP-GND-1 | 0.85 | no route | Power ground (EC) | — | |
| W6 | OEM-A34-1 | SP-GND-1 | 0.85 | no route | Power ground (E03) | — | |
| W7 | OEM-A34-2 | SP-GND-1 | 0.85 | no route | Power ground (E04) | — | |
| W8 | OEM-A34-3 | SP-GND-1 | 0.85 | no route | Power ground (E05) | — | |
| W9 | OEM-A36-3 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W10 | OEM-A36-4 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W11 | SP-GND-1 | T4-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W12 | SP-GND-1 | T4-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W13 | OEM-A33-29 | SP-0V-1 | 0.5 | no route | MAF sensor ground (E2G) | — | |
| W14 | OEM-A34-27 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W15 | OEM-A35-29 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (EPA) | — | |
| W16 | OEM-A35-30 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (EPA2) | — | |
| W17 | OEM-A36-29 | SP-0V-1 | 0.5 | no route | Sensor ground (E1) | — | |
| W18 | SP-0V-1 | T4-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W19 | SP-0V-1 | T4-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W20 | OEM-A34-34 | SP-5V1-1 | 0.5 | no route | OCV power source (VCV, 5V) | — | |
| W21 | OEM-A35-21 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCPA) | — | |
| W22 | OEM-A35-22 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCP2) | — | |
| W23 | OEM-A36-19 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VC) | — | |
| W24 | SP-5V1-1 | T4-C2-24 | 0.5 | no route | 5v Output | — | |
| W25 | OEM-A34-16 | T4-C2-12 | 0.5 | no route | Crank position (NE+) | — | |
| W26 | OEM-A34-14 | T4-C2-22 | 0.5 | no route | VVT cam sensor exhaust bank 1 (EV1+) | — | |
| W27 | OEM-A34-26 | T4-C2-2 | 0.5 | no route | VVT cam sensor intake bank 1 (VV1+) | — | |
| W28 | OEM-A36-21 | T4-C1-10 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W29 | OEM-A36-10 | T4-C1-18 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W30 | OEM-A36-31 | T4-C1-1 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W31 | OEM-A36-8 | T4-C1-26 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W32 | OEM-A36-12 | T4-C1-9 | 0.5 | no route | Injector 1 port (#10) | — | |
| W33 | OEM-A36-14 | T4-C1-17 | 0.5 | no route | Injector 1 direct (#1) | — | |
| W34 | OEM-A36-22 | T4-C1-34 | 0.5 | no route | Injector 2 port (#20) | — | |
| W35 | OEM-A36-25 | T4-C1-25 | 0.5 | no route | Injector 2 direct (#2) | — | |
| W36 | OEM-A36-24 | T4-C1-9 | 0.5 | no route | Injector 3 direct (#3) | — | |
| W37 | OEM-A36-32 | T4-C1-17 | 0.5 | no route | Injector 3 port (#30) | — | |
| W38 | OEM-A36-13 | T4-C1-34 | 0.5 | no route | Injector 4 port (#40) | — | |
| W39 | OEM-A36-23 | T4-C1-25 | 0.5 | no route | Injector 4 direct (#4) | — | |
| W40 | OEM-A36-1 | T4-C1-6 | 0.5 | no route | Throttle actuator motor - (M-) | — | |
| W41 | OEM-A36-2 | T4-C1-7 | 0.5 | no route | Throttle actuator motor + (M+) | — | |
| W42 | OEM-A35-13 | T4-C1-5 | 0.5 | no route | EFI main relay 1 (SSHUT) | — | |
| W43 | OEM-A35-12 | T4-C1-4 | 0.5 | no route | Cooling fan relay 2 (FAN2) | — | |
| W44 | OEM-A35-11 | T4-C1-3 | 0.5 | no route | Cooling fan relay 3 (FAN1) | — | |
| W45 | OEM-A33-20 | T4-C3-22 | 0.5 | no route | Blower relay (HB) | — | |
| W46 | OEM-A35-17 | T4-C3-23 | 0.5 | no route | ETCS relay (MCR) | — | |
| W47 | OEM-A35-35 | T4-C3-24 | 0.5 | no route | A/C clutch relay (AC) | — | |
| W48 | OEM-A35-5 | T4-C3-25 | 0.5 | no route | Injector relay (IREL) | — | |
| W49 | OEM-A35-7 | T4-C3-10 | 0.5 | no route | ETCS relay (+BM) | — | |
| W50 | OEM-A34-5 | T4-C3-9 | 0.5 | no route | A/F ratio sensor heater (HA1A) | — | |
| W51 | OEM-A33-22 | T4-C2-10 | 0.5 | no route | Mass air flow (VG) | — | |
| W52 | OEM-A34-20 | T4-C2-1 | 0.5 | no route | Manifold absolute pressure (PIM) | — | |
| W53 | OEM-A35-31 | T4-C2-5 | 0.5 | no route | Accelerator pedal position 2 (VPA2) | — | |
| W54 | OEM-A36-28 | T4-C2-6 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W55 | OEM-A35-23 | T4-C2-19 | 0.5 | no route | Accelerator pedal position (VPA) | — | |
| W56 | OEM-A36-18 | T4-C3-17 | 0.5 | no route | Throttle position (VTA1) | — | |
| W57 | OEM-A34-21 | T4-C3-18 | 0.5 | no route | Heated oxygen sensor (OX1B, rear) | — | |
| W58 | OEM-A36-30 | T4-C2-7 | 0.5 | no route | Engine coolant temperature (THW) | — | |
| W59 | OEM-A33-12 | T4-C2-25 | 0.5 | no route | Intake air temperature (THA, in MAF) | — | |
| W60 | OEM-A36-20 | T4-C2-17 | 0.5 | no route | Oil temperature (OT) | — | |
| W61 | OEM-A33-8 | T4-C2-34 | 0.5 | no route | A/C pressure sensor (ACP) | — | |
| W62 | OEM-A34-11 | T4-C2-3 | 0.5 | no route | DI injector confirmation (IJF1) | — | |
| W63 | OEM-A34-31 | T4-C2-16 | 0.5 | no route | DI injector confirmation (IJF2) | — | |
| W64 | OEM-A33-14 | T4-C2-4 | 0.5 | no route | Starter signal (STSW2) | — | |
| W65 | OEM-A33-15 | T4-C2-14 | 0.5 | no route | Clutch switch (CLSW) | — | |
| W66 | OEM-A33-16 | T4-C2-15 | 0.5 | no route | Neutral switch (NSW) | — | |
| W67 | OEM-A33-19 | T4-C2-26 | 0.5 | no route | CAN high (CANH) | — | |
| W68 | OEM-A33-18 | T4-C2-28 | 0.5 | no route | CAN low (CANL) | — |
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) | 47.000 | 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 | DBW_SENSOR_INPUT | tps | Only 1 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them. |
| error | NET_MERGED | OEM-A36-12 + OEM-A36-24 + T4-C1-9 | 2 different OEM functions share one net: OEM-A36-12 Injector 1 port (#10); OEM-A36-24 Injector 3 direct (#3) |
| error | NET_MERGED | OEM-A36-13 + OEM-A36-22 + T4-C1-34 | 2 different OEM functions share one net: OEM-A36-13 Injector 4 port (#40); OEM-A36-22 Injector 2 port (#20) |
| error | NET_MERGED | OEM-A36-14 + OEM-A36-32 + T4-C1-17 | 2 different OEM functions share one net: OEM-A36-14 Injector 1 direct (#1); OEM-A36-32 Injector 3 port (#30) |
| error | NET_MERGED | OEM-A36-23 + OEM-A36-25 + T4-C1-25 | 2 different OEM functions share one net: OEM-A36-23 Injector 4 direct (#4); OEM-A36-25 Injector 2 direct (#2) |
| error | PHYS_REQUIRED_OPEN | T4-C3-27 | T4-C3-27 "Permanent 12v" is required but not wired. |
| warn | DATASET_GAP | T4+ C1 | 18 of 34 cavities on T4+ C1 have no pin data (2,8,11,12,15,16,19,20,21,22,23,24,27,28,29,30,32,33). 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 | DBW_MOTOR_CURRENT | T4-C1-6 | Cannot confirm T4+ can drive the throttle motor: neither the motor current (OEM-A36-1) nor the rating of T4-C1-6 "Motor 1 +" is known. |
| warn | DBW_MOTOR_CURRENT | T4-C1-7 | Cannot confirm T4+ can drive the throttle motor: neither the motor current (OEM-A36-2) nor the rating of T4-C1-7 "Motor 1 -" is known. |
| warn | NET_FAMILY | OEM-A34-26 ↔ T4-C2-2 | OEM-A34-26 "VVT cam sensor intake bank 1 (VV1+)" [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 | 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 | 30 optional OEM pins are not mapped: OEM-A33-17 Starter signal (STSW2); OEM-A33-27 Ignition switch sense (IGSW, IG2 relay); OEM-A33-28 Shield ground (SLE2); OEM-A33-3 Stop light switch (ST1-); OEM-A33-7 Stop light switch (STP); OEM-A34-13 High-pressure fuel pump spill valve (FPF); OEM-A34-15 VVT cam sensor intake bank 2 (VV2+); OEM-A34-17 Knock sensor 2 (KNK2); OEM-A34-18 A/F ratio sensor (A1A-); OEM-A34-19 A/F ratio sensor (A1A+); OEM-A34-25 VVT cam sensor exhaust bank 2 (EV2+); OEM-A34-28 Knock sensor 1 (KNK1); OEM-A34-29 Shield ground (EKNK); OEM-A34-30 Shield ground (SLE1); OEM-A34-32 High-pressure fuel pump spill valve (FPD); OEM-A34-35 Shield ground (SLE3); OEM-A34-9 Fuel pressure sensor (PR); OEM-A35-1 Canister vent valve (VPMP); OEM-A35-10 Fuel pump control monitor (DI); OEM-A35-15 Tachometer output (TACH); OEM-A35-19 Fuel pump control (FPC); OEM-A35-20 Canister pressure sensor (PPMP); OEM-A35-26 Starter signal (STA); OEM-A35-8 Leak detection pump (MPMP); OEM-A36-11 Purge valve (PRG); OEM-A36-16 OCV intake bank 2 (OC2); OEM-A36-17 OCV intake bank 1 (OC1); OEM-A36-5 OCV exhaust bank 2 (OE2); OEM-A36-6 Heated oxygen sensor heater (HT1B); OEM-A36-7 OCV exhaust bank 1 (OE1) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-09. Review every wire against both manuals before building. Open items: - T4-C3 27: Permanent 12v: required by DTAFast T4+ but no stock pin feeds it; wire by hand Not wired: - OEM-A34 25: VVT cam sensor exhaust bank 2 (EV2+): no free cam_hall/cam_vr/frequency_in input on DTAFast T4+ - OEM-A34 15: VVT cam sensor intake bank 2 (VV2+): no free cam_hall/cam_vr/frequency_in input on DTAFast T4+ - OEM-A34 28: Knock sensor 1 (KNK1): no free knock input on DTAFast T4+ - OEM-A34 17: Knock sensor 2 (KNK2): no free knock input on DTAFast T4+ - OEM-A33 28: Shield ground (SLE2): no shield pin on DTAFast T4+ - OEM-A34 29: Shield ground (EKNK): no shield pin on DTAFast T4+ - OEM-A34 30: Shield ground (SLE1): no shield pin on DTAFast T4+ - OEM-A34 35: Shield ground (SLE3): no shield pin on DTAFast T4+ - OEM-A33 27: Ignition switch sense (IGSW, IG2 relay): 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-A36 6: Heated oxygen sensor heater (HT1B): no free heater_low_side/low_side/ls_hs/hbridge on DTAFast T4+ - OEM-A36 17: OCV intake bank 1 (OC1): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A36 7: OCV exhaust bank 1 (OE1): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A36 16: OCV intake bank 2 (OC2): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A36 5: OCV exhaust bank 2 (OE2): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A34 13: High-pressure fuel pump spill valve (FPF): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A34 32: High-pressure fuel pump spill valve (FPD): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A35 1: Canister vent valve (VPMP): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A35 19: Fuel pump control (FPC): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A35 8: Leak detection pump (MPMP): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A36 11: Purge valve (PRG): no free low_side/ls_hs/injector/hbridge on DTAFast T4+ - OEM-A35 15: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on DTAFast T4+ - OEM-A34 9: Fuel pressure sensor (PR): no free analog_0_5 on DTAFast T4+ - OEM-A35 10: Fuel pump control monitor (DI): no free analog_0_5 on DTAFast T4+ - OEM-A35 20: Canister pressure sensor (PPMP): no free analog_0_5 on DTAFast T4+ - OEM-A33 17: Starter signal (STSW2): no free switch_in/frequency_in/analog_0_5 on DTAFast T4+ - OEM-A33 3: Stop light switch (ST1-): no free switch_in/frequency_in/analog_0_5 on DTAFast T4+ - OEM-A33 7: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on DTAFast T4+ - OEM-A35 26: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on DTAFast T4+ - OEM-A34 18: A/F ratio sensor (A1A-): not classified in the library; wire by hand - OEM-A34 19: A/F ratio sensor (A1A+): not classified in the library; wire by hand
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/T4PLUS_Wiring_Diagram.pdf?v=1789412534 | — | — | — |
| 4 | vendor_doc | Scion FR-S / Toyota 86 Repair Manual (2013) — FA20 ECM terminal pinout (SFI system) | https://gt86.me/images/0/09/2013_Scion_FR-S_Repair_Manual.pdf | — | — | — |