Lexus LS400 1998-2000 (1UZ-FE VVT-i) → DTAFast T12 (auto)
Lexus LS400 1998-2000 (1UZ-FE VVT-i) — DTAFast — T12
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 2: read the Findings page before cutting any wire |
| Size of the job | 69 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-E15-16 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E15-7 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E15-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | T12-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-E15-1 | T12-C3-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E13-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E14-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | T12-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | T12-C1-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-E13-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E13-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-0V-1 | T12-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | T12-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E13-2 | T12-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E14-23 | T12-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E14-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E14-10 | T12-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E13-16 | T12-C2-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E13-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E13-15 | T12-C2-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E13-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E14-18 | T12-C3-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E14-17 | T12-C3-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E14-11 | T12-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E14-12 | T12-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E14-13 | T12-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E14-14 | T12-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E14-15 | T12-C1-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E14-16 | T12-C1-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E14-25 | T12-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E14-26 | T12-C1-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E13-5 | T12-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E13-6 | T12-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E14-1 | T12-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E14-2 | T12-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E14-3 | T12-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E14-4 | T12-C1-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E14-5 | T12-C1-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E14-6 | T12-C1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E14-7 | T12-C1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E14-8 | T12-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E11-19 | T12-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E14-20 | T12-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E13-10 | T12-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E13-13 | T12-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E13-21 | T12-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E13-20 | T12-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E13-9 | T12-C2-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E13-14 | T12-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E15-10 | T12-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E15-5 | T12-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E11-7 | T12-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E11-8 | T12-C3-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E13-3 | T12-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E13-4 | T12-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E11-28 | T12-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E12-12 | T12-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E13-8 | T12-C3-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E14-19 | T12-C3-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E14-29 | T12-C3-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E15-6 | T12-C3-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E11-18 | T12-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-E11-27 | T12-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-E13-11 | T12-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-E13-12 | T12-C2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-E13-22 | T12-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-E14-27 | T12-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-E14-28 | T12-C2-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-E11-17 | T12-C2-11 | 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 | T12-C1-13 | T12-C1-31 | open (OL) | power ground must not touch +12 V supply | |
| 2 | T12-C1-13 | T12-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 3 | T12-C1-13 | T12-C3-26 | open (OL) | power ground must not touch +12 V supply | |
| 4 | T12-C2-21 | T12-C1-31 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | T12-C2-21 | T12-C2-24 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 6 | T12-C2-21 | T12-C3-26 | open (OL) | sensor ground must not touch +12 V supply | |
| 7 | T12-C2-24 | T12-C1-31 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 8 | T12-C2-24 | T12-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-E11
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 17 | Starter signal (STA) | — | W69 | — | 0.5 | T12-C2-11 | — | — | — |
| 18 | O2 sensor signal (bank unconfirmed) | — | W62 | — | 0.5 | T12-C2-19 | — | — | — |
| 19 | VVT oil-control valve RH (OCR+) | — | W42 | — | 0.5 | T12-C1-5 | — | — | — |
| 27 | O2 sensor signal (bank unconfirmed) | — | W63 | — | 0.5 | T12-C3-17 | — | — | — |
| 28 | VVT oil-control valve RH (OCR−) | — | W56 | — | 0.5 | T12-C3-25 | — | — | — |
| 5 | Diagnostic test (TC) | — | — | — | — | — | — | — | — |
| 7 | O2 sensor heater (bank unconfirmed) | — | W52 | — | 0.5 | T12-C3-9 | — | — | — |
| 8 | O2 sensor heater (bank unconfirmed) | — | W53 | — | 0.5 | T12-C3-3 | — | — | — |
OEM-E12
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 12 | Throttle magnetic clutch + (CL+) | — | W57 | — | 0.5 | T12-C3-10 | — | — | — |
OEM-E13
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | MAF signal (VG) | — | W44 | — | 0.5 | T12-C2-10 | — | — | — |
| 11 | O2 sensor signal (bank unconfirmed) | — | W64 | — | 0.5 | T12-C3-18 | — | — | — |
| 12 | O2 sensor signal (bank unconfirmed) | — | W65 | — | 0.5 | T12-C2-34 | — | — | — |
| 13 | Throttle position sensor 1 (VTA) | — | W45 | — | 0.5 | T12-C2-1 | — | — | — |
| 14 | Engine coolant temp (THW) | — | W49 | — | 0.5 | T12-C2-7 | — | — | — |
| 15 | VVT position sensor RH (VVR+) | — | W20 | — | 0.5 | T12-C2-23 | — | — | — |
| 16 | VVT position sensor LH (VVL+) | — | W18 | — | 0.5 | T12-C2-29 | — | — | — |
| 17 | ECU ground (E1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | +5V sensor reference (VC) | — | W14 | — | 0.5 | T12-C2-24 | — | — | — |
| 20 | Throttle position sensor 2 (VTA2) | — | W47 | — | 0.5 | T12-C2-6 | — | — | — |
| 21 | Accelerator pedal position 1 (VPA) | — | W46 | — | 0.5 | T12-C2-5 | — | — | — |
| 22 | Intake air temp (THA) | — | W66 | — | 0.5 | T12-C2-25 | — | — | — |
| 23 | VVT position sensor RH (VVR−) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | VVT position sensor LH (VVL−) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | O2 sensor heater (bank unconfirmed) | — | W54 | — | 0.5 | T12-C3-23 | — | — | — |
| 4 | O2 sensor heater (bank unconfirmed) | — | W55 | — | 0.5 | T12-C3-24 | — | — | — |
| 5 | Injector 1 (cyl 1) | — | W32 | — | 0.5 | T12-C1-9 | — | — | — |
| 6 | Injector 2 (cyl 2) | — | W33 | — | 0.5 | T12-C1-17 | — | — | — |
| 8 | Throttle magnetic clutch − (CL−) | — | W58 | — | 0.5 | T12-C3-4 | — | — | — |
| 9 | Accelerator pedal position 2 (VPA2) | — | W48 | — | 0.5 | T12-C2-18 | — | — | — |
OEM-E14
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (cyl 3) | — | W34 | — | 0.5 | T12-C1-34 | — | — | — |
| 10 | Camshaft position sensor (G2) | — | W17 | — | 0.5 | T12-C2-22 | — | — | — |
| 11 | Ignition coil 1 (IGT1) | — | W24 | — | 0.5 | T12-C1-10 | — | — | — |
| 12 | Ignition coil 2 (IGT2) | — | W25 | — | 0.5 | T12-C1-18 | — | — | — |
| 13 | Ignition coil 3 (IGT3) | — | W26 | — | 0.5 | T12-C1-1 | — | — | — |
| 14 | Ignition coil 4 (IGT4) | — | W27 | — | 0.5 | T12-C1-26 | — | — | — |
| 15 | Ignition coil 5 (IGT5) | — | W28 | — | 0.5 | T12-C1-11 | — | — | — |
| 16 | Ignition coil 6 (IGT6) | — | W29 | — | 0.5 | T12-C1-27 | — | — | — |
| 17 | Knock sensor RH (KNKR) | — | W23 | — | 0.5 | T12-C3-32 | — | — | — |
| 18 | Knock sensor LH (KNKL) | — | W22 | — | 0.5 | T12-C3-31 | — | — | — |
| 19 | VVT oil-control valve LH (OCV−) | — | W59 | — | 0.5 | T12-C3-28 | — | — | — |
| 2 | Injector 4 (cyl 4) | — | W35 | — | 0.5 | T12-C1-25 | — | — | — |
| 20 | VVT oil-control valve LH (OCV+) | — | W43 | — | 0.5 | T12-C1-4 | — | — | — |
| 21 | Power/injector ground (E01) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position sensor (NE−) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position sensor (NE+) | — | W15 | — | 0.5 | T12-C2-12 | — | — | — |
| 25 | Ignition coil 7 (IGT7) | — | W30 | — | 0.5 | T12-C1-12 | — | — | — |
| 26 | Ignition coil 8 (IGT8) | — | W31 | — | 0.5 | T12-C1-19 | — | — | — |
| 27 | Ignition confirmation 1 (IGF1) | — | W67 | — | 0.5 | T12-C2-4 | — | — | — |
| 28 | Ignition confirmation 2 (IGF2) | — | W68 | — | 0.5 | T12-C2-8 | — | — | — |
| 29 | ACIS induction VSV | — | W60 | — | 0.5 | T12-C3-29 | — | — | — |
| 3 | Injector 5 (cyl 5) | — | W36 | — | 0.5 | T12-C1-16 | — | — | — |
| 4 | Injector 6 (cyl 6) | — | W37 | — | 0.5 | T12-C1-15 | — | — | — |
| 5 | Injector 7 (cyl 7) | — | W38 | — | 0.5 | T12-C1-24 | — | — | — |
| 6 | Injector 8 (cyl 8) | — | W39 | — | 0.5 | T12-C1-23 | — | — | — |
| 7 | Throttle motor − (M−) | — | W40 | — | 0.5 | T12-C1-7 | — | — | — |
| 8 | Throttle motor + (M+) | — | W41 | — | 0.5 | T12-C1-6 | — | — | — |
OEM-E15
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (+12V) | — | W5 | — | 0.85 | T12-C3-26 | — | — | — |
| 10 | EFI main relay control (MREL) | — | W50 | — | 0.5 | T12-C1-3 | — | — | — |
| 11 | OBD-II / DLC3 data (SIL) | — | — | — | — | — | — | — | — |
| 16 | ECM power (EFI relay +B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 5 | Fuel pump relay control (FC) | — | W51 | — | 0.5 | T12-C3-22 | — | — | — |
| 6 | Check engine light (W) | — | W61 | — | 0.5 | T12-C3-30 | — | — | — |
| 7 | ECM power feed (+BM) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 8 | ECM power (EFI relay +B1) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Ignition switch (+12V) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W21 | — | 0.5 | OEM-E13-23 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | OEM-E13-18 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-E13-19 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | T12-C2-21 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | T12-C2-33 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-E14-22 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-E13-24 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E15-16 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E15-7 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-E15-8 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | T12-C1-31 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-E13-17 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E14-21 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | T12-C1-13 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | T12-C1-14 | — | — | — |
T12-C1
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coil 3 | — | W26 | — | 0.5 | OEM-E14-13 | — | — | — |
| 2 | Coil 11 | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W50 | — | 0.5 | OEM-E15-10 | — | — | — |
| 4 | PWM 2 | — | W43 | — | 0.5 | OEM-E14-20 | — | — | — |
| 5 | PWM 1 | — | W42 | — | 0.5 | OEM-E11-19 | — | — | — |
| 6 | Motor 1 + | — | W41 | — | 0.5 | OEM-E14-8 | — | — | — |
| 7 | Motor 1 - | — | W40 | — | 0.5 | OEM-E14-7 | — | — | — |
| 8 | Injector 11 | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W32 | — | 0.5 | OEM-E13-5 | — | — | — |
| 10 | Coil 1 | — | W24 | — | 0.5 | OEM-E14-11 | — | — | — |
| 11 | Coil 5 | — | W28 | — | 0.5 | OEM-E14-15 | — | — | — |
| 12 | Coil 7 | — | W30 | — | 0.5 | OEM-E14-25 | — | — | — |
| 13 | Power Ground 1 | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Injector 6 | — | W37 | — | 0.5 | OEM-E14-4 | — | — | — |
| 16 | Injector 5 | — | W36 | — | 0.5 | OEM-E14-3 | — | — | — |
| 17 | Injector 2 | — | W33 | — | 0.5 | OEM-E13-6 | — | — | — |
| 18 | Coil 2 | — | W25 | — | 0.5 | OEM-E14-12 | — | — | — |
| 19 | Coil 8 | — | W31 | — | 0.5 | OEM-E14-26 | — | — | — |
| 20 | Coil 9 | — | — | — | — | — | — | — | — |
| 21 | Injector 9 | — | — | — | — | — | — | — | — |
| 22 | Injector 10 | — | — | — | — | — | — | — | — |
| 23 | Injector 8 | — | W39 | — | 0.5 | OEM-E14-6 | — | — | — |
| 24 | Injector 7 | — | W38 | — | 0.5 | OEM-E14-5 | — | — | — |
| 25 | Injector 4 | — | W35 | — | 0.5 | OEM-E14-2 | — | — | — |
| 26 | Coil 4 | — | W27 | — | 0.5 | OEM-E14-14 | — | — | — |
| 27 | Coil 6 | — | W29 | — | 0.5 | OEM-E14-16 | — | — | — |
| 28 | Coil 10 | — | — | — | — | — | — | — | — |
| 29 | Motor 2 + | — | — | — | — | — | — | — | — |
| 30 | Motor 2 - | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | Injector 12 | — | — | — | — | — | — | — | — |
| 33 | Coil 12 | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W34 | — | 0.5 | OEM-E14-1 | — | — | — |
T12-C2
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W45 | — | 0.5 | OEM-E13-13 | — | — | — |
| 2 | Wheel 1 | — | — | — | — | — | — | — | — |
| 3 | Analogue 10 | — | — | — | — | — | — | — | — |
| 4 | Digital 1 | — | W67 | — | 0.5 | OEM-E14-27 | — | — | — |
| 5 | Analogue 3 | — | W46 | — | 0.5 | OEM-E13-21 | — | — | — |
| 6 | Analogue 4 | — | W47 | — | 0.5 | OEM-E13-20 | — | — | — |
| 7 | Thermistor 1 | — | W49 | — | 0.5 | OEM-E13-14 | — | — | — |
| 8 | Digital 2 | — | W68 | — | 0.5 | OEM-E14-28 | — | — | — |
| 9 | 5v Output | — | — | — | — | — | — | — | — |
| 10 | Analogue 1 | — | W44 | — | 0.5 | OEM-E13-10 | — | — | — |
| 11 | Digital 3 | — | W69 | — | 0.5 | OEM-E11-17 | — | — | — |
| 12 | Crank | — | W15 | — | 0.5 | OEM-E14-23 | — | — | — |
| 13 | Analogue 12 | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | — | — | — | — | — | — | — |
| 15 | Digital 5 | — | — | — | — | — | — | — | — |
| 16 | Analogue 11 | — | — | — | — | — | — | — | — |
| 17 | Thermistor 3 | — | — | — | — | — | — | — | — |
| 18 | Analogue 5 | — | W48 | — | 0.5 | OEM-E13-9 | — | — | — |
| 19 | Analogue 6 | — | W62 | — | 0.5 | OEM-E11-18 | — | — | — |
| 20 | Wheel 2 | — | — | — | — | — | — | — | — |
| 21 | Sensor Ground | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W17 | — | 0.5 | OEM-E14-10 | — | — | — |
| 23 | Cam 3 | — | W20 | — | 0.5 | OEM-E13-15 | — | — | — |
| 24 | 5v Output | — | W14 | — | 0.5 | OEM-E13-2 | — | — | — |
| 25 | Thermistor 2 | — | W66 | — | 0.5 | OEM-E13-22 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | Digital 6 | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | Cam 2 | — | W18 | — | 0.5 | OEM-E13-16 | — | — | — |
| 30 | Cam 4 | — | — | — | — | — | — | — | — |
| 31 | Wheel 3 | — | — | — | — | — | — | — | — |
| 32 | Wheel 4 | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | W65 | — | 0.5 | OEM-E13-12 | — | — | — |
T12-C3
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Lambda 2 Pump Current | — | — | — | — | — | — | — | — |
| 2 | Lambda 2 VGND | — | — | — | — | — | — | — | — |
| 3 | Lambda 2 Heater Negative | — | W53 | — | 0.5 | OEM-E11-8 | — | — | — |
| 4 | PWM 9 | — | W58 | — | 0.5 | OEM-E13-8 | — | — | — |
| 5 | Lambda 2 Trim Resistor | — | — | — | — | — | — | — | — |
| 6 | Lambda 2 Nernst Voltage | — | — | — | — | — | — | — | — |
| 7 | Lambda 1 Pump Current | — | — | — | — | — | — | — | — |
| 8 | Lambda 1 VGND | — | — | — | — | — | — | — | — |
| 9 | Lambda 1 Heater Negative | — | W52 | — | 0.5 | OEM-E11-7 | — | — | — |
| 10 | PWM 8 | — | W57 | — | 0.5 | OEM-E12-12 | — | — | — |
| 11 | Lambda 1 Trim Resistor | — | — | — | — | — | — | — | — |
| 12 | Lambda 1 Nernst Voltage | — | — | — | — | — | — | — | — |
| 13 | Analogue 13 | — | — | — | — | — | — | — | — |
| 14 | Analogue 14 | — | — | — | — | — | — | — | — |
| 15 | Analogue 15 | — | — | — | — | — | — | — | — |
| 16 | Analogue 16 | — | — | — | — | — | — | — | — |
| 17 | Analogue 7 | — | W63 | — | 0.5 | OEM-E11-27 | — | — | — |
| 18 | Analogue 8 | — | W64 | — | 0.5 | OEM-E13-11 | — | — | — |
| 19 | Digital 7 | — | — | — | — | — | — | — | — |
| 20 | Digital 8 | — | — | — | — | — | — | — | — |
| 21 | Digital 9 | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W51 | — | 0.5 | OEM-E15-5 | — | — | — |
| 23 | PWM 5 | — | W54 | — | 0.5 | OEM-E13-3 | — | — | — |
| 24 | PWM 6 | — | W55 | — | 0.5 | OEM-E13-4 | — | — | — |
| 25 | PWM 7 | — | W56 | — | 0.5 | OEM-E11-28 | — | — | — |
| 26 | Permanent 12v | — | W5 | — | 0.85 | OEM-E15-1 | — | — | — |
| 27 | Permanent 12v | — | — | — | — | — | — | — | — |
| 28 | PWM 10 | — | W59 | — | 0.5 | OEM-E14-19 | — | — | — |
| 29 | PWM 11 | — | W60 | — | 0.5 | OEM-E14-29 | — | — | — |
| 30 | PWM 12 | — | W61 | — | 0.5 | OEM-E15-6 | — | — | — |
| 31 | Knock 1 | — | W22 | — | 0.5 | OEM-E14-18 | — | — | — |
| 32 | Knock 2 | — | W23 | — | 0.5 | OEM-E14-17 | — | — | — |
| 33 | CAN 2 High | — | — | — | — | — | — | — | — |
| 34 | CAN 2 Low | — | — | — | — | — | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E11-17 | Starter signal (STA) | digital_in | T12-C2-11 | Digital 3 | digital_in | corroborated | |
| OEM-E11-18 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | T12-C2-19 | Analogue 6 | analog_in | corroborated | |
| OEM-E11-19 | VVT oil-control valve RH (OCR+) | low_side_out | T12-C1-5 | PWM 1 | low_side_out | corroborated | |
| OEM-E11-27 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | T12-C3-17 | Analogue 7 | analog_in | corroborated | |
| OEM-E11-28 | VVT oil-control valve RH (OCR−) | low_side_out | T12-C3-25 | PWM 7 | low_side_out | corroborated | |
| OEM-E11-5 | Diagnostic test (TC) | serial | — | — | — | corroborated | |
| OEM-E11-7 | O2 sensor heater (bank unconfirmed) | low_side_out | T12-C3-9 | Lambda 1 Heater Negative | low_side_out | corroborated | |
| OEM-E11-8 | O2 sensor heater (bank unconfirmed) | low_side_out | T12-C3-3 | Lambda 2 Heater Negative | low_side_out | corroborated | |
| OEM-E12-12 | Throttle magnetic clutch + (CL+) | low_side_out | T12-C3-10 | PWM 8 | low_side_out | corroborated | |
| OEM-E13-10 | MAF signal (VG) | analog_in | T12-C2-10 | Analogue 1 | analog_in | corroborated | |
| OEM-E13-11 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | T12-C3-18 | Analogue 8 | analog_in | corroborated | |
| OEM-E13-12 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | T12-C2-34 | Analogue 9 | analog_in | corroborated | |
| OEM-E13-13 | Throttle position sensor 1 (VTA) | analog_in | T12-C2-1 | Analogue 2 | analog_in | corroborated | |
| OEM-E13-14 | Engine coolant temp (THW) | temp_in | T12-C2-7 | Thermistor 1 | temp_in | corroborated | |
| OEM-E13-15 | VVT position sensor RH (VVR+) | trigger_in | T12-C2-23 | Cam 3 | trigger_in | corroborated | |
| OEM-E13-16 | VVT position sensor LH (VVL+) | trigger_in | T12-C2-29 | Cam 2 | trigger_in | corroborated | |
| OEM-E13-17 | ECU ground (E1) | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated | |
| OEM-E13-18 | Sensor ground (E2) | sensor_ground | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-19 | MAF ground (EVG) | sensor_ground | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-2 | +5V sensor reference (VC) | vref | T12-C2-24 | 5v Output | vref | corroborated | |
| OEM-E13-20 | Throttle position sensor 2 (VTA2) | analog_in | T12-C2-6 | Analogue 4 | analog_in | corroborated | |
| OEM-E13-21 | Accelerator pedal position 1 (VPA) | analog_in | T12-C2-5 | Analogue 3 | analog_in | corroborated | |
| OEM-E13-22 | Intake air temp (THA) | temp_in | T12-C2-25 | Thermistor 2 | temp_in | corroborated | |
| OEM-E13-23 | VVT position sensor RH (VVR−) | trigger_in | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-24 | VVT position sensor LH (VVL−) | trigger_in | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-3 | O2 sensor heater (bank unconfirmed) | low_side_out | T12-C3-23 | PWM 5 | low_side_out | corroborated | |
| OEM-E13-4 | O2 sensor heater (bank unconfirmed) | low_side_out | T12-C3-24 | PWM 6 | low_side_out | corroborated | |
| OEM-E13-5 | Injector 1 (cyl 1) | injector_out | T12-C1-9 | Injector 1 | injector_out | corroborated | |
| OEM-E13-6 | Injector 2 (cyl 2) | injector_out | T12-C1-17 | Injector 2 | injector_out | corroborated | |
| OEM-E13-8 | Throttle magnetic clutch − (CL−) | low_side_out | T12-C3-4 | PWM 9 | low_side_out | corroborated | |
| OEM-E13-9 | Accelerator pedal position 2 (VPA2) | analog_in | T12-C2-18 | Analogue 5 | analog_in | corroborated | |
| OEM-E14-1 | Injector 3 (cyl 3) | injector_out | T12-C1-34 | Injector 3 | injector_out | corroborated | |
| OEM-E14-10 | Camshaft position sensor (G2) | trigger_in | T12-C2-22 | Cam 1 | trigger_in | corroborated | |
| OEM-E14-11 | Ignition coil 1 (IGT1) | ignition_out | T12-C1-10 | Coil 1 | ignition_out | corroborated | |
| OEM-E14-12 | Ignition coil 2 (IGT2) | ignition_out | T12-C1-18 | Coil 2 | ignition_out | corroborated | |
| OEM-E14-13 | Ignition coil 3 (IGT3) | ignition_out | T12-C1-1 | Coil 3 | ignition_out | corroborated | |
| OEM-E14-14 | Ignition coil 4 (IGT4) | ignition_out | T12-C1-26 | Coil 4 | ignition_out | corroborated | |
| OEM-E14-15 | Ignition coil 5 (IGT5) | ignition_out | T12-C1-11 | Coil 5 | ignition_out | corroborated | |
| OEM-E14-16 | Ignition coil 6 (IGT6) | ignition_out | T12-C1-27 | Coil 6 | ignition_out | corroborated | |
| OEM-E14-17 | Knock sensor RH (KNKR) | knock_in | T12-C3-32 | Knock 2 | knock_in | corroborated | |
| OEM-E14-18 | Knock sensor LH (KNKL) | knock_in | T12-C3-31 | Knock 1 | knock_in | corroborated | |
| OEM-E14-19 | VVT oil-control valve LH (OCV−) | low_side_out | T12-C3-28 | PWM 10 | low_side_out | corroborated | |
| OEM-E14-2 | Injector 4 (cyl 4) | injector_out | T12-C1-25 | Injector 4 | injector_out | corroborated | |
| OEM-E14-20 | VVT oil-control valve LH (OCV+) | low_side_out | T12-C1-4 | PWM 2 | low_side_out | corroborated | |
| OEM-E14-21 | Power/injector ground (E01) | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated | |
| OEM-E14-22 | Crank position sensor (NE−) | trigger_in | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E14-23 | Crank position sensor (NE+) | trigger_in | T12-C2-12 | Crank | trigger_in | corroborated | |
| OEM-E14-25 | Ignition coil 7 (IGT7) | ignition_out | T12-C1-12 | Coil 7 | ignition_out | corroborated | |
| OEM-E14-26 | Ignition coil 8 (IGT8) | ignition_out | T12-C1-19 | Coil 8 | ignition_out | corroborated | |
| OEM-E14-27 | Ignition confirmation 1 (IGF1) | digital_in | T12-C2-4 | Digital 1 | digital_in | corroborated | |
| OEM-E14-28 | Ignition confirmation 2 (IGF2) | digital_in | T12-C2-8 | Digital 2 | digital_in | corroborated | |
| OEM-E14-29 | ACIS induction VSV | low_side_out | T12-C3-29 | PWM 11 | low_side_out | corroborated | |
| OEM-E14-3 | Injector 5 (cyl 5) | injector_out | T12-C1-16 | Injector 5 | injector_out | corroborated | |
| OEM-E14-4 | Injector 6 (cyl 6) | injector_out | T12-C1-15 | Injector 6 | injector_out | corroborated | |
| OEM-E14-5 | Injector 7 (cyl 7) | injector_out | T12-C1-24 | Injector 7 | injector_out | corroborated | |
| OEM-E14-6 | Injector 8 (cyl 8) | injector_out | T12-C1-23 | Injector 8 | injector_out | corroborated | |
| OEM-E14-7 | Throttle motor − (M−) | hbridge_out | T12-C1-7 | Motor 1 - | hbridge_out | corroborated | |
| OEM-E14-8 | Throttle motor + (M+) | hbridge_out | T12-C1-6 | Motor 1 + | hbridge_out | corroborated | |
| OEM-E15-1 | Battery constant (+12V) | power_in | T12-C3-26 | Permanent 12v | power_in | corroborated | |
| OEM-E15-10 | EFI main relay control (MREL) | low_side_out | T12-C1-3 | PWM 3 | low_side_out | corroborated | |
| OEM-E15-11 | OBD-II / DLC3 data (SIL) | serial | — | — | — | corroborated | |
| OEM-E15-16 | ECM power (EFI relay +B) | power_in | T12-C1-31 | Ignition 12v In | power_in | corroborated | |
| OEM-E15-5 | Fuel pump relay control (FC) | low_side_out | T12-C3-22 | PWM 4 | low_side_out | corroborated | |
| OEM-E15-6 | Check engine light (W) | low_side_out | T12-C3-30 | PWM 12 | low_side_out | corroborated | |
| OEM-E15-7 | ECM power feed (+BM) | power_in | T12-C1-31 | Ignition 12v In | power_in | corroborated | |
| OEM-E15-8 | ECM power (EFI relay +B1) | power_in | T12-C1-31 | Ignition 12v In | power_in | corroborated | |
| OEM-E15-9 | Ignition switch (+12V) | digital_in | — | — | — | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E15-16 | SP-14V-1 | 0.85 | no route | ECM power (EFI relay +B) | — | |
| W2 | OEM-E15-7 | SP-14V-1 | 0.85 | no route | ECM power feed (+BM) | — | |
| W3 | OEM-E15-8 | SP-14V-1 | 0.85 | no route | ECM power (EFI relay +B1) | — | |
| W4 | SP-14V-1 | T12-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W5 | OEM-E15-1 | T12-C3-26 | 0.85 | no route | Battery constant (+12V) | — | |
| W6 | OEM-E13-17 | SP-GND-1 | 0.85 | no route | ECU ground (E1) | — | |
| W7 | OEM-E14-21 | SP-GND-1 | 0.85 | no route | Power/injector ground (E01) | — | |
| W8 | SP-GND-1 | T12-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W9 | SP-GND-1 | T12-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W10 | OEM-E13-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W11 | OEM-E13-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W12 | SP-0V-1 | T12-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W13 | SP-0V-1 | T12-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W14 | OEM-E13-2 | T12-C2-24 | 0.5 | no route | +5V sensor reference (VC) | — | |
| W15 | OEM-E14-23 | T12-C2-12 | 0.5 | no route | Crank position sensor (NE+) | — | |
| W16 | OEM-E14-22 | SP-0V-1 | 0.5 | no route | Crank position sensor (NE−) | — | |
| W17 | OEM-E14-10 | T12-C2-22 | 0.5 | no route | Camshaft position sensor (G2) | — | |
| W18 | OEM-E13-16 | T12-C2-29 | 0.5 | no route | VVT position sensor LH (VVL+) | — | |
| W19 | OEM-E13-24 | SP-0V-1 | 0.5 | no route | VVT position sensor LH (VVL−) | — | |
| W20 | OEM-E13-15 | T12-C2-23 | 0.5 | no route | VVT position sensor RH (VVR+) | — | |
| W21 | OEM-E13-23 | SP-0V-1 | 0.5 | no route | VVT position sensor RH (VVR−) | — | |
| W22 | OEM-E14-18 | T12-C3-31 | 0.5 | no route | Knock sensor LH (KNKL) | — | |
| W23 | OEM-E14-17 | T12-C3-32 | 0.5 | no route | Knock sensor RH (KNKR) | — | |
| W24 | OEM-E14-11 | T12-C1-10 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W25 | OEM-E14-12 | T12-C1-18 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W26 | OEM-E14-13 | T12-C1-1 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W27 | OEM-E14-14 | T12-C1-26 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W28 | OEM-E14-15 | T12-C1-11 | 0.5 | no route | Ignition coil 5 (IGT5) | — | |
| W29 | OEM-E14-16 | T12-C1-27 | 0.5 | no route | Ignition coil 6 (IGT6) | — | |
| W30 | OEM-E14-25 | T12-C1-12 | 0.5 | no route | Ignition coil 7 (IGT7) | — | |
| W31 | OEM-E14-26 | T12-C1-19 | 0.5 | no route | Ignition coil 8 (IGT8) | — | |
| W32 | OEM-E13-5 | T12-C1-9 | 0.5 | no route | Injector 1 (cyl 1) | — | |
| W33 | OEM-E13-6 | T12-C1-17 | 0.5 | no route | Injector 2 (cyl 2) | — | |
| W34 | OEM-E14-1 | T12-C1-34 | 0.5 | no route | Injector 3 (cyl 3) | — | |
| W35 | OEM-E14-2 | T12-C1-25 | 0.5 | no route | Injector 4 (cyl 4) | — | |
| W36 | OEM-E14-3 | T12-C1-16 | 0.5 | no route | Injector 5 (cyl 5) | — | |
| W37 | OEM-E14-4 | T12-C1-15 | 0.5 | no route | Injector 6 (cyl 6) | — | |
| W38 | OEM-E14-5 | T12-C1-24 | 0.5 | no route | Injector 7 (cyl 7) | — | |
| W39 | OEM-E14-6 | T12-C1-23 | 0.5 | no route | Injector 8 (cyl 8) | — | |
| W40 | OEM-E14-7 | T12-C1-7 | 0.5 | no route | Throttle motor − (M−) | — | |
| W41 | OEM-E14-8 | T12-C1-6 | 0.5 | no route | Throttle motor + (M+) | — | |
| W42 | OEM-E11-19 | T12-C1-5 | 0.5 | no route | VVT oil-control valve RH (OCR+) | — | |
| W43 | OEM-E14-20 | T12-C1-4 | 0.5 | no route | VVT oil-control valve LH (OCV+) | — | |
| W44 | OEM-E13-10 | T12-C2-10 | 0.5 | no route | MAF signal (VG) | — | |
| W45 | OEM-E13-13 | T12-C2-1 | 0.5 | no route | Throttle position sensor 1 (VTA) | — | |
| W46 | OEM-E13-21 | T12-C2-5 | 0.5 | no route | Accelerator pedal position 1 (VPA) | — | |
| W47 | OEM-E13-20 | T12-C2-6 | 0.5 | no route | Throttle position sensor 2 (VTA2) | — | |
| W48 | OEM-E13-9 | T12-C2-18 | 0.5 | no route | Accelerator pedal position 2 (VPA2) | — | |
| W49 | OEM-E13-14 | T12-C2-7 | 0.5 | no route | Engine coolant temp (THW) | — | |
| W50 | OEM-E15-10 | T12-C1-3 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W51 | OEM-E15-5 | T12-C3-22 | 0.5 | no route | Fuel pump relay control (FC) | — | |
| W52 | OEM-E11-7 | T12-C3-9 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W53 | OEM-E11-8 | T12-C3-3 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W54 | OEM-E13-3 | T12-C3-23 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W55 | OEM-E13-4 | T12-C3-24 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W56 | OEM-E11-28 | T12-C3-25 | 0.5 | no route | VVT oil-control valve RH (OCR−) | — | |
| W57 | OEM-E12-12 | T12-C3-10 | 0.5 | no route | Throttle magnetic clutch + (CL+) | — | |
| W58 | OEM-E13-8 | T12-C3-4 | 0.5 | no route | Throttle magnetic clutch − (CL−) | — | |
| W59 | OEM-E14-19 | T12-C3-28 | 0.5 | no route | VVT oil-control valve LH (OCV−) | — | |
| W60 | OEM-E14-29 | T12-C3-29 | 0.5 | no route | ACIS induction VSV | — | |
| W61 | OEM-E15-6 | T12-C3-30 | 0.5 | no route | Check engine light (W) | — | |
| W62 | OEM-E11-18 | T12-C2-19 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W63 | OEM-E11-27 | T12-C3-17 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W64 | OEM-E13-11 | T12-C3-18 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W65 | OEM-E13-12 | T12-C2-34 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W66 | OEM-E13-22 | T12-C2-25 | 0.5 | no route | Intake air temp (THA) | — | |
| W67 | OEM-E14-27 | T12-C2-4 | 0.5 | no route | Ignition confirmation 1 (IGF1) | — | |
| W68 | OEM-E14-28 | T12-C2-8 | 0.5 | no route | Ignition confirmation 2 (IGF2) | — | |
| W69 | OEM-E11-17 | T12-C2-11 | 0.5 | no route | Starter signal (STA) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 3.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 59.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (6)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | T12-C3-27 | T12-C3-27 "Permanent 12v" is required but not wired. |
| error | REQUIRED_UNMAPPED | OEM-E15-9 | Required OEM function "Ignition switch (+12V)" (digital_in) is not connected to the new ECU. |
| warn | DBW_MOTOR_CURRENT | T12-C1-6 | Cannot confirm T12 can drive the throttle motor: neither the motor stall current (OEM-E14-8) nor the peak rating of T12-C1-6 "Motor 1 +" is known. |
| warn | DBW_MOTOR_CURRENT | T12-C1-7 | Cannot confirm T12 can drive the throttle motor: neither the motor stall current (OEM-E14-7) nor the peak rating of T12-C1-7 "Motor 1 -" is known. |
| info | NET_FAMILY | OEM-E13-18 ↔ OEM-E14-22 | OEM-E13-18 "Sensor ground (E2)" [sensor_ground] is wired to OEM-E14-22 "Crank position sensor (NE−)" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 2 optional OEM pins are not mapped: OEM-E11-5 Diagnostic test (TC); OEM-E15-11 OBD-II / DLC3 data (SIL) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-E15 9: Ignition switch (+12V): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); DTAFast T12 has no dedicated key-on input - T12-C3 27: Permanent 12v: required by DTAFast T12 but no stock pin feeds it; wire by hand Not wired: - OEM-E15 11: OBD-II / DLC3 data (SIL): no free k_line on DTAFast T12 - OEM-E11 5: Diagnostic test (TC): no free k_line on DTAFast T12
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | DTAFast T12+ ECU wiring diagram (served for T12 and T12+) | https://cdn.shopify.com/s/files/1/0848/7508/4108/files/T12PLUS_Wiring-Diagram.pdf?v=1728572014 | — | — | — |
| 4 | vendor_doc | Toyota 1UZ-FE (VVT-i) engine manual M1UZ | http://www.epicmarine.com/docs/M1UZrm.pdf | — | — | — |
| 3 | community_copy | 1998 Lexus LS400 ECM terminal voltage chart (RM717U translation) | https://www.renrendoc.com/p-59096353.html | — | — | — |