Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i → DTAFast T12 (auto)
Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i — DTAFast — T12
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12
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 | 4: read the Findings page before cutting any wire |
| Size of the job | 63 wires · 12 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-E2-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E3-16 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E3-7 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-E3-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | T12-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E3-1 | T12-C3-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E6-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E7-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | T12-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | T12-C1-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E6-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E6-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E7-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | T12-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | T12-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E6-2 | T12-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E7-23 | T12-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E7-10 | T12-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E7-28 | T12-C3-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E7-27 | T12-C3-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E7-11 | T12-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E7-12 | T12-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E7-13 | T12-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E6-5 | T12-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E6-6 | T12-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E7-1 | T12-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E7-2 | T12-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E7-3 | T12-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E7-4 | T12-C1-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E7-17 | T12-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E7-18 | T12-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E7-19 | T12-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E7-20 | T12-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E6-15 | T12-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E6-23 | T12-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E6-16 | T12-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E6-24 | T12-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E6-14 | T12-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E3-10 | T12-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E3-4 | T12-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E4-13 | T12-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E2-25 | T12-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E2-26 | T12-C3-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E6-3 | T12-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E6-4 | T12-C3-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E3-5 | T12-C3-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E3-6 | T12-C3-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E5-12 | T12-C3-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E6-7 | T12-C1-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E7-5 | T12-C1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E6-10 | T12-C2-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E2-24 | T12-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E4-8 | T12-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E6-11 | T12-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E6-12 | T12-C2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E6-22 | T12-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E4-18 | T12-C2-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E5-11 | T12-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E5-5 | T12-C2-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E7-25 | T12-C2-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E4-2 | T12-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E4-5 | T12-C2-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-E4-6 | 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-C1-31 | T12-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 2 | T12-C1-31 | T12-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | T12-C3-26 | T12-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 4 | T12-C3-26 | T12-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 5 | T12-C1-13 | T12-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | T12-C1-31 | T12-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | T12-C2-21 | T12-C2-24 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 8 | T12-C3-26 | T12-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-E2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 13 | ETCS power (TBP, throttle bypass) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | O2 right rear (OXR2) | — | W52 | — | 0.5 | T12-C2-19 | — | — | — |
| 25 | O2 heater right rear (HTR2) | — | W42 | — | 0.5 | T12-C3-9 | — | — | — |
| 26 | O2 heater left rear (HTL2) | — | W43 | — | 0.5 | T12-C3-3 | — | — | — |
OEM-E3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (BATT) | — | W6 | — | 0.85 | T12-C3-26 | — | — | — |
| 10 | EFI main relay control (MREL) | — | W39 | — | 0.5 | T12-C3-23 | — | — | — |
| 11 | Serial diagnostic (SIL) | — | — | — | — | — | — | — | — |
| 16 | EFI main relay (+B) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Fuel pump relay (FPR) | — | W40 | — | 0.5 | T12-C3-24 | — | — | — |
| 5 | Fuel pump control (FC) | — | W46 | — | 0.5 | T12-C3-28 | — | — | — |
| 6 | Check-engine lamp (W) | — | W47 | — | 0.5 | T12-C3-29 | — | — | — |
| 7 | ETCS main relay (+BM) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 8 | EFI main relay (+B2) | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Ignition switch (IGSW) | — | — | — | — | — | — | — | — |
OEM-E4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 13 | A/C clutch relay (ACMG) | — | W41 | — | 0.5 | T12-C3-25 | — | — | — |
| 18 | EVAP vapor pressure (PTNK) | — | W57 | — | 0.5 | T12-C2-3 | — | — | — |
| 2 | Starter signal (STA) | — | W61 | — | 0.5 | T12-C2-4 | — | — | — |
| 5 | Diagnostic/timing check (TC) | — | W62 | — | 0.5 | T12-C2-8 | — | — | — |
| 6 | Stop light switch (STP) | — | W63 | — | 0.5 | T12-C2-11 | — | — | — |
| 8 | O2 left rear (OXL2) | — | W53 | — | 0.5 | T12-C3-17 | — | — | — |
OEM-E5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Vehicle speed sensor (SP2-) | — | W58 | — | 0.5 | T12-C2-2 | — | — | — |
| 12 | Canister close valve (CCV) | — | W48 | — | 0.5 | T12-C3-30 | — | — | — |
| 5 | Vehicle speed sensor (SP2+) | — | W59 | — | 0.5 | T12-C2-20 | — | — | — |
OEM-E6
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Mass air flow (VG) | — | W51 | — | 0.5 | T12-C2-18 | — | — | — |
| 11 | O2 right front (OXR1) | — | W54 | — | 0.5 | T12-C3-18 | — | — | — |
| 12 | O2 left front (OXL1) | — | W55 | — | 0.5 | T12-C2-34 | — | — | — |
| 14 | Coolant temperature (THW) | — | W38 | — | 0.5 | T12-C2-7 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W34 | — | 0.5 | T12-C2-10 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | W36 | — | 0.5 | T12-C2-5 | — | — | — |
| 17 | Power ground (E1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor supply +5V (VC) | — | W16 | — | 0.5 | T12-C2-24 | — | — | — |
| 22 | Intake air temperature (THA) | — | W56 | — | 0.5 | T12-C2-25 | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W35 | — | 0.5 | T12-C2-1 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | W37 | — | 0.5 | T12-C2-6 | — | — | — |
| 3 | O2 heater right front (HTR) | — | W44 | — | 0.5 | T12-C3-10 | — | — | — |
| 4 | O2 heater left front (HTL) | — | W45 | — | 0.5 | T12-C3-4 | — | — | — |
| 5 | Injector 1 (#10) | — | W24 | — | 0.5 | T12-C1-9 | — | — | — |
| 6 | Injector 2 (#20) | — | W25 | — | 0.5 | T12-C1-17 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | W49 | — | 0.5 | T12-C1-24 | — | — | — |
OEM-E7
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W26 | — | 0.5 | T12-C1-34 | — | — | — |
| 10 | Cam position (G2) | — | W18 | — | 0.5 | T12-C2-22 | — | — | — |
| 11 | Ignition 1 (IGT) | — | W21 | — | 0.5 | T12-C1-10 | — | — | — |
| 12 | Ignition 2 (IGT2) | — | W22 | — | 0.5 | T12-C1-18 | — | — | — |
| 13 | Ignition 3 (IGT3) | — | W23 | — | 0.5 | T12-C1-1 | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W30 | — | 0.5 | T12-C1-5 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W31 | — | 0.5 | T12-C1-4 | — | — | — |
| 19 | ETCS throttle clutch - (CL-) | — | W32 | — | 0.5 | T12-C1-3 | — | — | — |
| 2 | Injector 4 (#40) | — | W27 | — | 0.5 | T12-C1-25 | — | — | — |
| 20 | ETCS throttle clutch + (CL+) | — | W33 | — | 0.5 | T12-C3-22 | — | — | — |
| 21 | Power ground (E01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position return (NE-) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE) | — | W17 | — | 0.5 | T12-C2-12 | — | — | — |
| 25 | Igniter feedback (IGF) | — | W60 | — | 0.5 | T12-C2-31 | — | — | — |
| 27 | Knock sensor 2 (KNK2) | — | W20 | — | 0.5 | T12-C3-32 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | W19 | — | 0.5 | T12-C3-31 | — | — | — |
| 3 | Injector 5 (#50) | — | W28 | — | 0.5 | T12-C1-16 | — | — | — |
| 4 | Injector 6 (#60) | — | W29 | — | 0.5 | T12-C1-15 | — | — | — |
| 5 | ACIS intake VSV | — | W50 | — | 0.5 | T12-C1-23 | — | — | — |
| 7 | ETCS throttle motor - (M-) | — | — | — | — | — | — | — | — |
| 8 | ETCS throttle motor + (M+) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-E6-18 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-E6-19 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E7-22 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | T12-C2-21 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | T12-C2-33 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E2-13 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E3-16 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-E3-7 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-E3-8 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | T12-C1-31 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-E6-17 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E7-21 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | T12-C1-13 | — | — | — |
| 1 | — | — | W10 | — | 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 | — | W23 | — | 0.5 | OEM-E7-13 | — | — | — |
| 2 | Coil 11 | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W32 | — | 0.5 | OEM-E7-19 | — | — | — |
| 4 | PWM 2 | — | W31 | — | 0.5 | OEM-E7-18 | — | — | — |
| 5 | PWM 1 | — | W30 | — | 0.5 | OEM-E7-17 | — | — | — |
| 6 | Motor 1 + | — | — | — | — | — | — | — | — |
| 7 | Motor 1 - | — | — | — | — | — | — | — | — |
| 8 | Injector 11 | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W24 | — | 0.5 | OEM-E6-5 | — | — | — |
| 10 | Coil 1 | — | W21 | — | 0.5 | OEM-E7-11 | — | — | — |
| 11 | Coil 5 | — | — | — | — | — | — | — | — |
| 12 | Coil 7 | — | — | — | — | — | — | — | — |
| 13 | Power Ground 1 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Injector 6 | — | W29 | — | 0.5 | OEM-E7-4 | — | — | — |
| 16 | Injector 5 | — | W28 | — | 0.5 | OEM-E7-3 | — | — | — |
| 17 | Injector 2 | — | W25 | — | 0.5 | OEM-E6-6 | — | — | — |
| 18 | Coil 2 | — | W22 | — | 0.5 | OEM-E7-12 | — | — | — |
| 19 | Coil 8 | — | — | — | — | — | — | — | — |
| 20 | Coil 9 | — | — | — | — | — | — | — | — |
| 21 | Injector 9 | — | — | — | — | — | — | — | — |
| 22 | Injector 10 | — | — | — | — | — | — | — | — |
| 23 | Injector 8 | — | W50 | — | 0.5 | OEM-E7-5 | — | — | — |
| 24 | Injector 7 | — | W49 | — | 0.5 | OEM-E6-7 | — | — | — |
| 25 | Injector 4 | — | W27 | — | 0.5 | OEM-E7-2 | — | — | — |
| 26 | Coil 4 | — | — | — | — | — | — | — | — |
| 27 | Coil 6 | — | — | — | — | — | — | — | — |
| 28 | Coil 10 | — | — | — | — | — | — | — | — |
| 29 | Motor 2 + | — | — | — | — | — | — | — | — |
| 30 | Motor 2 - | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | Injector 12 | — | — | — | — | — | — | — | — |
| 33 | Coil 12 | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W26 | — | 0.5 | OEM-E7-1 | — | — | — |
T12-C2
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W35 | — | 0.5 | OEM-E6-23 | — | — | — |
| 2 | Wheel 1 | — | W58 | — | 0.5 | OEM-E5-11 | — | — | — |
| 3 | Analogue 10 | — | W57 | — | 0.5 | OEM-E4-18 | — | — | — |
| 4 | Digital 1 | — | W61 | — | 0.5 | OEM-E4-2 | — | — | — |
| 5 | Analogue 3 | — | W36 | — | 0.5 | OEM-E6-16 | — | — | — |
| 6 | Analogue 4 | — | W37 | — | 0.5 | OEM-E6-24 | — | — | — |
| 7 | Thermistor 1 | — | W38 | — | 0.5 | OEM-E6-14 | — | — | — |
| 8 | Digital 2 | — | W62 | — | 0.5 | OEM-E4-5 | — | — | — |
| 9 | 5v Output | — | — | — | — | — | — | — | — |
| 10 | Analogue 1 | — | W34 | — | 0.5 | OEM-E6-15 | — | — | — |
| 11 | Digital 3 | — | W63 | — | 0.5 | OEM-E4-6 | — | — | — |
| 12 | Crank | — | W17 | — | 0.5 | OEM-E7-23 | — | — | — |
| 13 | Analogue 12 | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | — | — | — | — | — | — | — |
| 15 | Digital 5 | — | — | — | — | — | — | — | — |
| 16 | Analogue 11 | — | — | — | — | — | — | — | — |
| 17 | Thermistor 3 | — | — | — | — | — | — | — | — |
| 18 | Analogue 5 | — | W51 | — | 0.5 | OEM-E6-10 | — | — | — |
| 19 | Analogue 6 | — | W52 | — | 0.5 | OEM-E2-24 | — | — | — |
| 20 | Wheel 2 | — | W59 | — | 0.5 | OEM-E5-5 | — | — | — |
| 21 | Sensor Ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W18 | — | 0.5 | OEM-E7-10 | — | — | — |
| 23 | Cam 3 | — | — | — | — | — | — | — | — |
| 24 | 5v Output | — | W16 | — | 0.5 | OEM-E6-2 | — | — | — |
| 25 | Thermistor 2 | — | W56 | — | 0.5 | OEM-E6-22 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | Digital 6 | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | Cam 2 | — | — | — | — | — | — | — | — |
| 30 | Cam 4 | — | — | — | — | — | — | — | — |
| 31 | Wheel 3 | — | W60 | — | 0.5 | OEM-E7-25 | — | — | — |
| 32 | Wheel 4 | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | W55 | — | 0.5 | OEM-E6-12 | — | — | — |
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 | — | W43 | — | 0.5 | OEM-E2-26 | — | — | — |
| 4 | PWM 9 | — | W45 | — | 0.5 | OEM-E6-4 | — | — | — |
| 5 | Lambda 2 Trim Resistor | — | — | — | — | — | — | — | — |
| 6 | Lambda 2 Nernst Voltage | — | — | — | — | — | — | — | — |
| 7 | Lambda 1 Pump Current | — | — | — | — | — | — | — | — |
| 8 | Lambda 1 VGND | — | — | — | — | — | — | — | — |
| 9 | Lambda 1 Heater Negative | — | W42 | — | 0.5 | OEM-E2-25 | — | — | — |
| 10 | PWM 8 | — | W44 | — | 0.5 | OEM-E6-3 | — | — | — |
| 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 | — | W53 | — | 0.5 | OEM-E4-8 | — | — | — |
| 18 | Analogue 8 | — | W54 | — | 0.5 | OEM-E6-11 | — | — | — |
| 19 | Digital 7 | — | — | — | — | — | — | — | — |
| 20 | Digital 8 | — | — | — | — | — | — | — | — |
| 21 | Digital 9 | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W33 | — | 0.5 | OEM-E7-20 | — | — | — |
| 23 | PWM 5 | — | W39 | — | 0.5 | OEM-E3-10 | — | — | — |
| 24 | PWM 6 | — | W40 | — | 0.5 | OEM-E3-4 | — | — | — |
| 25 | PWM 7 | — | W41 | — | 0.5 | OEM-E4-13 | — | — | — |
| 26 | Permanent 12v | — | W6 | — | 0.85 | OEM-E3-1 | — | — | — |
| 27 | Permanent 12v | — | — | — | — | — | — | — | — |
| 28 | PWM 10 | — | W46 | — | 0.5 | OEM-E3-5 | — | — | — |
| 29 | PWM 11 | — | W47 | — | 0.5 | OEM-E3-6 | — | — | — |
| 30 | PWM 12 | — | W48 | — | 0.5 | OEM-E5-12 | — | — | — |
| 31 | Knock 1 | — | W19 | — | 0.5 | OEM-E7-28 | — | — | — |
| 32 | Knock 2 | — | W20 | — | 0.5 | OEM-E7-27 | — | — | — |
| 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-E2-13 | ETCS power (TBP, throttle bypass) | power_in | T12-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-E2-24 | O2 right rear (OXR2) | lambda_nb_in | T12-C2-19 | Analogue 6 | analog_in | single_source | |
| OEM-E2-25 | O2 heater right rear (HTR2) | low_side_out | T12-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-E2-26 | O2 heater left rear (HTL2) | low_side_out | T12-C3-3 | Lambda 2 Heater Negative | low_side_out | single_source | |
| OEM-E3-1 | Battery constant (BATT) | power_in | T12-C3-26 | Permanent 12v | power_in | single_source | |
| OEM-E3-10 | EFI main relay control (MREL) | low_side_out | T12-C3-23 | PWM 5 | low_side_out | single_source | |
| OEM-E3-11 | Serial diagnostic (SIL) | serial | — | — | — | single_source | |
| OEM-E3-16 | EFI main relay (+B) | power_in | T12-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-E3-4 | Fuel pump relay (FPR) | low_side_out | T12-C3-24 | PWM 6 | low_side_out | single_source | |
| OEM-E3-5 | Fuel pump control (FC) | low_side_out | T12-C3-28 | PWM 10 | low_side_out | single_source | |
| OEM-E3-6 | Check-engine lamp (W) | low_side_out | T12-C3-29 | PWM 11 | low_side_out | single_source | |
| OEM-E3-7 | ETCS main relay (+BM) | power_in | T12-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-E3-8 | EFI main relay (+B2) | power_in | T12-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-E3-9 | Ignition switch (IGSW) | digital_in | — | — | — | single_source | |
| OEM-E4-13 | A/C clutch relay (ACMG) | low_side_out | T12-C3-25 | PWM 7 | low_side_out | single_source | |
| OEM-E4-18 | EVAP vapor pressure (PTNK) | analog_in | T12-C2-3 | Analogue 10 | analog_in | single_source | |
| OEM-E4-2 | Starter signal (STA) | digital_in | T12-C2-4 | Digital 1 | digital_in | single_source | |
| OEM-E4-5 | Diagnostic/timing check (TC) | digital_in | T12-C2-8 | Digital 2 | digital_in | single_source | |
| OEM-E4-6 | Stop light switch (STP) | digital_in | T12-C2-11 | Digital 3 | digital_in | single_source | |
| OEM-E4-8 | O2 left rear (OXL2) | lambda_nb_in | T12-C3-17 | Analogue 7 | analog_in | single_source | |
| OEM-E5-11 | Vehicle speed sensor (SP2-) | digital_in | T12-C2-2 | Wheel 1 | digital_in | single_source | |
| OEM-E5-12 | Canister close valve (CCV) | low_side_out | T12-C3-30 | PWM 12 | low_side_out | single_source | |
| OEM-E5-5 | Vehicle speed sensor (SP2+) | digital_in | T12-C2-20 | Wheel 2 | digital_in | single_source | |
| OEM-E6-10 | Mass air flow (VG) | analog_in | T12-C2-18 | Analogue 5 | analog_in | single_source | |
| OEM-E6-11 | O2 right front (OXR1) | lambda_nb_in | T12-C3-18 | Analogue 8 | analog_in | single_source | |
| OEM-E6-12 | O2 left front (OXL1) | lambda_nb_in | T12-C2-34 | Analogue 9 | analog_in | single_source | |
| OEM-E6-14 | Coolant temperature (THW) | temp_in | T12-C2-7 | Thermistor 1 | temp_in | single_source | |
| OEM-E6-15 | Accelerator pedal 1 (VPA) | analog_in | T12-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-E6-16 | Accelerator pedal 2 (VPA2) | analog_in | T12-C2-5 | Analogue 3 | analog_in | single_source | |
| OEM-E6-17 | Power ground (E1) | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E6-18 | Sensor ground (E2) | sensor_ground | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-E6-19 | MAF ground (EVG) | sensor_ground | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-E6-2 | Sensor supply +5V (VC) | vref | T12-C2-24 | 5v Output | vref | single_source | |
| OEM-E6-22 | Intake air temperature (THA) | temp_in | T12-C2-25 | Thermistor 2 | temp_in | single_source | |
| OEM-E6-23 | Throttle position 1 (VTA) | analog_in | T12-C2-1 | Analogue 2 | analog_in | single_source | |
| OEM-E6-24 | Throttle position 2 (VTA2) | analog_in | T12-C2-6 | Analogue 4 | analog_in | single_source | |
| OEM-E6-3 | O2 heater right front (HTR) | low_side_out | T12-C3-10 | PWM 8 | low_side_out | single_source | |
| OEM-E6-4 | O2 heater left front (HTL) | low_side_out | T12-C3-4 | PWM 9 | low_side_out | single_source | |
| OEM-E6-5 | Injector 1 (#10) | injector_out | T12-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-E6-6 | Injector 2 (#20) | injector_out | T12-C1-17 | Injector 2 | injector_out | single_source | |
| OEM-E6-7 | EVAP purge VSV (PRG) | low_side_out | T12-C1-24 | Injector 7 | injector_out | single_source | |
| OEM-E7-1 | Injector 3 (#30) | injector_out | T12-C1-34 | Injector 3 | injector_out | single_source | |
| OEM-E7-10 | Cam position (G2) | trigger_in | T12-C2-22 | Cam 1 | trigger_in | single_source | |
| OEM-E7-11 | Ignition 1 (IGT) | ignition_out | T12-C1-10 | Coil 1 | ignition_out | single_source | |
| OEM-E7-12 | Ignition 2 (IGT2) | ignition_out | T12-C1-18 | Coil 2 | ignition_out | single_source | |
| OEM-E7-13 | Ignition 3 (IGT3) | ignition_out | T12-C1-1 | Coil 3 | ignition_out | single_source | |
| OEM-E7-17 | VVT-i OCV - (OCV-) | low_side_out | T12-C1-5 | PWM 1 | low_side_out | single_source | |
| OEM-E7-18 | VVT-i OCV + (OCV+) | low_side_out | T12-C1-4 | PWM 2 | low_side_out | single_source | |
| OEM-E7-19 | ETCS throttle clutch - (CL-) | low_side_out | T12-C1-3 | PWM 3 | low_side_out | single_source | |
| OEM-E7-2 | Injector 4 (#40) | injector_out | T12-C1-25 | Injector 4 | injector_out | single_source | |
| OEM-E7-20 | ETCS throttle clutch + (CL+) | low_side_out | T12-C3-22 | PWM 4 | low_side_out | single_source | |
| OEM-E7-21 | Power ground (E01) | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E7-22 | Crank position return (NE-) | sensor_ground | T12-C2-21 + T12-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-E7-23 | Crank position (NE) | trigger_in | T12-C2-12 | Crank | trigger_in | single_source | |
| OEM-E7-25 | Igniter feedback (IGF) | digital_in | T12-C2-31 | Wheel 3 | digital_in | single_source | |
| OEM-E7-27 | Knock sensor 2 (KNK2) | knock_in | T12-C3-32 | Knock 2 | knock_in | single_source | |
| OEM-E7-28 | Knock sensor 1 (KNK1) | knock_in | T12-C3-31 | Knock 1 | knock_in | single_source | |
| OEM-E7-3 | Injector 5 (#50) | injector_out | T12-C1-16 | Injector 5 | injector_out | single_source | |
| OEM-E7-4 | Injector 6 (#60) | injector_out | T12-C1-15 | Injector 6 | injector_out | single_source | |
| OEM-E7-5 | ACIS intake VSV | low_side_out | T12-C1-23 | Injector 8 | injector_out | single_source | |
| OEM-E7-7 | ETCS throttle motor - (M-) | hbridge_out | — | — | — | single_source | |
| OEM-E7-8 | ETCS throttle motor + (M+) | hbridge_out | — | — | — | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E2-13 | SP-14V-1 | 0.85 | no route | ETCS power (TBP, throttle bypass) | — | |
| W2 | OEM-E3-16 | SP-14V-1 | 0.85 | no route | EFI main relay (+B) | — | |
| W3 | OEM-E3-7 | SP-14V-1 | 0.85 | no route | ETCS main relay (+BM) | — | |
| W4 | OEM-E3-8 | SP-14V-1 | 0.85 | no route | EFI main relay (+B2) | — | |
| W5 | SP-14V-1 | T12-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W6 | OEM-E3-1 | T12-C3-26 | 0.85 | no route | Battery constant (BATT) | — | |
| W7 | OEM-E6-17 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W8 | OEM-E7-21 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W9 | SP-GND-1 | T12-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W10 | SP-GND-1 | T12-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W11 | OEM-E6-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W12 | OEM-E6-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W13 | OEM-E7-22 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W14 | SP-0V-1 | T12-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W15 | SP-0V-1 | T12-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W16 | OEM-E6-2 | T12-C2-24 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W17 | OEM-E7-23 | T12-C2-12 | 0.5 | no route | Crank position (NE) | — | |
| W18 | OEM-E7-10 | T12-C2-22 | 0.5 | no route | Cam position (G2) | — | |
| W19 | OEM-E7-28 | T12-C3-31 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W20 | OEM-E7-27 | T12-C3-32 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W21 | OEM-E7-11 | T12-C1-10 | 0.5 | no route | Ignition 1 (IGT) | — | |
| W22 | OEM-E7-12 | T12-C1-18 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W23 | OEM-E7-13 | T12-C1-1 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W24 | OEM-E6-5 | T12-C1-9 | 0.5 | no route | Injector 1 (#10) | — | |
| W25 | OEM-E6-6 | T12-C1-17 | 0.5 | no route | Injector 2 (#20) | — | |
| W26 | OEM-E7-1 | T12-C1-34 | 0.5 | no route | Injector 3 (#30) | — | |
| W27 | OEM-E7-2 | T12-C1-25 | 0.5 | no route | Injector 4 (#40) | — | |
| W28 | OEM-E7-3 | T12-C1-16 | 0.5 | no route | Injector 5 (#50) | — | |
| W29 | OEM-E7-4 | T12-C1-15 | 0.5 | no route | Injector 6 (#60) | — | |
| W30 | OEM-E7-17 | T12-C1-5 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W31 | OEM-E7-18 | T12-C1-4 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W32 | OEM-E7-19 | T12-C1-3 | 0.5 | no route | ETCS throttle clutch - (CL-) | — | |
| W33 | OEM-E7-20 | T12-C3-22 | 0.5 | no route | ETCS throttle clutch + (CL+) | — | |
| W34 | OEM-E6-15 | T12-C2-10 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W35 | OEM-E6-23 | T12-C2-1 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W36 | OEM-E6-16 | T12-C2-5 | 0.5 | no route | Accelerator pedal 2 (VPA2) | — | |
| W37 | OEM-E6-24 | T12-C2-6 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W38 | OEM-E6-14 | T12-C2-7 | 0.5 | no route | Coolant temperature (THW) | — | |
| W39 | OEM-E3-10 | T12-C3-23 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W40 | OEM-E3-4 | T12-C3-24 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W41 | OEM-E4-13 | T12-C3-25 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W42 | OEM-E2-25 | T12-C3-9 | 0.5 | no route | O2 heater right rear (HTR2) | — | |
| W43 | OEM-E2-26 | T12-C3-3 | 0.5 | no route | O2 heater left rear (HTL2) | — | |
| W44 | OEM-E6-3 | T12-C3-10 | 0.5 | no route | O2 heater right front (HTR) | — | |
| W45 | OEM-E6-4 | T12-C3-4 | 0.5 | no route | O2 heater left front (HTL) | — | |
| W46 | OEM-E3-5 | T12-C3-28 | 0.5 | no route | Fuel pump control (FC) | — | |
| W47 | OEM-E3-6 | T12-C3-29 | 0.5 | no route | Check-engine lamp (W) | — | |
| W48 | OEM-E5-12 | T12-C3-30 | 0.5 | no route | Canister close valve (CCV) | — | |
| W49 | OEM-E6-7 | T12-C1-24 | 0.5 | no route | EVAP purge VSV (PRG) | — | |
| W50 | OEM-E7-5 | T12-C1-23 | 0.5 | no route | ACIS intake VSV | — | |
| W51 | OEM-E6-10 | T12-C2-18 | 0.5 | no route | Mass air flow (VG) | — | |
| W52 | OEM-E2-24 | T12-C2-19 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W53 | OEM-E4-8 | T12-C3-17 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W54 | OEM-E6-11 | T12-C3-18 | 0.5 | no route | O2 right front (OXR1) | — | |
| W55 | OEM-E6-12 | T12-C2-34 | 0.5 | no route | O2 left front (OXL1) | — | |
| W56 | OEM-E6-22 | T12-C2-25 | 0.5 | no route | Intake air temperature (THA) | — | |
| W57 | OEM-E4-18 | T12-C2-3 | 0.5 | no route | EVAP vapor pressure (PTNK) | — | |
| W58 | OEM-E5-11 | T12-C2-2 | 0.5 | no route | Vehicle speed sensor (SP2-) | — | |
| W59 | OEM-E5-5 | T12-C2-20 | 0.5 | no route | Vehicle speed sensor (SP2+) | — | |
| W60 | OEM-E7-25 | T12-C2-31 | 0.5 | no route | Igniter feedback (IGF) | — | |
| W61 | OEM-E4-2 | T12-C2-4 | 0.5 | no route | Starter signal (STA) | — | |
| W62 | OEM-E4-5 | T12-C2-8 | 0.5 | no route | Diagnostic/timing check (TC) | — | |
| W63 | OEM-E4-6 | T12-C2-11 | 0.5 | no route | Stop light switch (STP) | — |
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) | 54.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (7)
| 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-E3-9 | Required OEM function "Ignition switch (IGSW)" (digital_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E7-7 | Required OEM function "ETCS throttle motor - (M-)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E7-8 | Required OEM function "ETCS throttle motor + (M+)" (hbridge_out) is not connected to the new ECU. |
| info | NET_FAMILY | OEM-E6-7 ↔ T12-C1-24 | OEM-E6-7 "EVAP purge VSV (PRG)" [low_side_out] is wired to T12-C1-24 "Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E7-5 ↔ T12-C1-23 | OEM-E7-5 "ACIS intake VSV" [low_side_out] is wired to T12-C1-23 "Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 1 optional OEM pins are not mapped: OEM-E3-11 Serial diagnostic (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-E3 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 T12 has no dedicated key-on input - OEM-E7 7: ETCS throttle motor - (M-): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-E7 8: ETCS throttle motor + (M+): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - T12-C3 27: Permanent 12v: required by DTAFast T12 but no stock pin feeds it; wire by hand Not wired: - OEM-E3 11: Serial diagnostic (SIL): 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 | service_manual | Toyota FSM RM779U (2001 Lexus IS300) — DIAGNOSTICS 'TERMINALS OF ECM' (DI-20/21) | http://www.2jzgarage.com/wp-content/uploads/2013/04/2001_IS300_ECU_Pinouts.pdf | — | — | — |