AP2 2006–09 (F22C1, DBW) → DTAFast T12 (auto)
AP2 2006–09 (F22C1, DBW) — 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 | 75 wires · 13 connectors · 7 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-A-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | T12-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-9 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E-3 | 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-A-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | TB-J-GND | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | T12-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | T12-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-A-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-5V1-1 | T12-C2-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | TB-J-VCC | T12-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-7 | T12-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-6 | T12-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-1 | T12-C3-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-16 | T12-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-15 | T12-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-14 | T12-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-13 | T12-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-5 | T12-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-4 | T12-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-3 | T12-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B-2 | T12-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | TB-J-M- | T12-C1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | TB-J-M+ | T12-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E-17 | T12-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E-7 | T12-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-6 | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | RLY1-R-COIL- | T12-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-30 | T12-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-25 | T12-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-26 | T12-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B-8 | T12-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | TB-J-TPS1 | T12-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | TB-J-TPS2 | T12-C2-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-D-15 | T12-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E-12 | T12-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E-18 | T12-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E-8 | T12-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E-21 | T12-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-10 | T12-C3-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-B-15 | T12-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-B-18 | T12-C3-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-B-21 | T12-C3-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E-19 | T12-C3-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E-25 | T12-C3-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E-20 | T12-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E-1 | T12-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-B-17 | T12-C2-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-B-13 | T12-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E-14 | T12-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-E-15 | T12-C2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-E-16 | T12-C2-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-A-18 | T12-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-B-11 | T12-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-D-1 | T12-C2-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-D-4 | T12-C2-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-D-7 | T12-C2-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-D-8 | T12-C2-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-D-9 | T12-C2-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-E-22 | T12-C3-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-E-28 | T12-C3-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-E-11 | T12-C3-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W75 | OEM-E-24 | T12-C3-34 | 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 | RLY1-R-COIL+ | T12-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 2 | RLY1-R-COIL+ | T12-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | T12-C2-9 | T12-C2-21 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | RLY1-R-COIL+ | T12-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 5 | RLY1-R-COIL+ | T12-C2-9 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 6 | RLY1-R-OUT | T12-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | T12-C1-13 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 8 | T12-C1-13 | T12-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 9 | T12-C1-13 | T12-C2-9 | open (OL) | power ground must not touch 5 V sensor reference | |
| 10 | T12-C2-21 | RLY1-R-OUT | open (OL) | sensor ground must not touch +12 V supply | |
| 11 | T12-C2-21 | T12-C2-24 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 12 | T12-C2-9 | RLY1-R-OUT | 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-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Knock sensor | — | W24 | — | 0.5 | T12-C3-31 | — | — | — |
| 2 | Ignition power 2 | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Cam position sensor (T2) | — | W23 | — | 0.5 | T12-C2-22 | — | — | — |
| 7 | Crank position sensor (T1) | — | W22 | — | 0.5 | T12-C2-12 | — | — | — |
| 8 | Logic ground 2 | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Logic ground 1 | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | A/F sensor heater | — | W52 | — | 0.5 | T12-C3-3 | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 | — | W28 | — | 0.5 | T12-C1-26 | — | — | — |
| 14 | Ignition coil 3 | — | W27 | — | 0.5 | T12-C1-1 | — | — | — |
| 15 | Ignition coil 2 | — | W26 | — | 0.5 | T12-C1-18 | — | — | — |
| 16 | Ignition coil 1 | — | W25 | — | 0.5 | T12-C1-10 | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor | — | W65 | — | 0.5 | T12-C2-2 | — | — | — |
| 19 | Unused cavity | — | — | — | — | — | — | — | — |
| 20 | Sensor voltage 2 | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor voltage 1 | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Sensor ground 2 | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Sensor ground 1 | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 25 | Accelerator pedal position B | — | W42 | — | 0.5 | T12-C2-1 | — | — | — |
| 26 | Accelerator pedal position A | — | W43 | — | 0.5 | T12-C2-5 | — | — | — |
| 27 | Unused cavity | — | — | — | — | — | — | — | — |
| 28 | A/F sensor signal − | — | — | — | — | — | — | — | — |
| 29 | Unused cavity | — | — | — | — | — | — | — | — |
| 30 | MAP sensor | — | W41 | — | 0.5 | T12-C2-10 | — | — | — |
| 31 | A/F sensor signal + | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Unused cavity | — | — | — | — | — | — | — | — |
| 2 | Injector 4 | — | W32 | — | 0.5 | T12-C1-25 | — | — | — |
| 3 | Injector 3 | — | W31 | — | 0.5 | T12-C1-34 | — | — | — |
| 4 | Injector 2 | — | W30 | — | 0.5 | T12-C1-17 | — | — | — |
| 5 | Injector 1 | — | W29 | — | 0.5 | T12-C1-9 | — | — | — |
| 6 | VTEC solenoid | — | W37 | — | 0.5 | RLY1-R-OUT | — | — | — |
| 7 | Unused cavity | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor | — | W44 | — | 0.5 | T12-C2-7 | — | — | — |
| 9 | Unused cavity | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal | — | — | — | — | — | — | — | — |
| 11 | VTEC oil pressure switch | — | W66 | — | 0.5 | T12-C2-4 | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal | — | W61 | — | 0.5 | T12-C3-17 | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Engine mount control solenoid | — | W53 | — | 0.5 | T12-C3-10 | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor | — | W60 | — | 0.5 | T12-C2-17 | — | — | — |
| 18 | Alternator control | — | W54 | — | 0.5 | T12-C3-4 | — | — | — |
| 19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | — | — | — | — |
| 20 | Throttle actuator command to throttle control module (SEDF) | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve | — | W55 | — | 0.5 | T12-C3-28 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | Unused cavity | — | — | — | — | — | — | — | — |
OEM-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Cruise set switch | — | W67 | — | 0.5 | T12-C2-8 | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Unused cavity | — | — | — | — | — | — | — | — |
| 4 | Cruise main switch | — | W68 | — | 0.5 | T12-C2-11 | — | — | — |
| 5 | Unused cavity | — | — | — | — | — | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Cruise resume switch | — | W69 | — | 0.5 | T12-C2-14 | — | — | — |
| 8 | Brake pedal position switch | — | W70 | — | 0.5 | T12-C2-15 | — | — | — |
| 9 | Cruise clutch signal | — | W71 | — | 0.5 | T12-C2-27 | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Unused cavity | — | — | — | — | — | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Throttle actuator relay | — | W47 | — | 0.5 | T12-C3-22 | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coolant temp sensor 2 | — | W59 | — | 0.5 | T12-C2-25 | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Logic ground 3 | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor voltage 3 | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Main relay control | — | W36 | — | 0.5 | T12-C1-4 | — | — | — |
| 8 | A/F sensor heater relay | — | W50 | — | 0.5 | T12-C3-25 | — | — | — |
| 9 | Ignition signal | — | — | — | — | — | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | CAN H | — | W74 | — | 0.5 | T12-C3-33 | — | — | — |
| 12 | Radiator fan control | — | W48 | — | 0.5 | T12-C3-23 | — | — | — |
| 13 | Multiplex communication | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor | — | W62 | — | 0.5 | T12-C3-18 | — | — | — |
| 15 | Electrical load detector | — | W63 | — | 0.5 | T12-C2-34 | — | — | — |
| 16 | Power steering load detector | — | W64 | — | 0.5 | T12-C2-3 | — | — | — |
| 17 | Fuel pump relay | — | W35 | — | 0.5 | T12-C1-5 | — | — | — |
| 18 | A/C clutch relay | — | W49 | — | 0.5 | T12-C3-24 | — | — | — |
| 19 | Evap canister vent shut valve | — | W56 | — | 0.5 | T12-C3-29 | — | — | — |
| 20 | Secondary O2 sensor | — | W58 | — | 0.5 | T12-C2-19 | — | — | — |
| 21 | Secondary O2 heater | — | W51 | — | 0.5 | T12-C3-9 | — | — | — |
| 22 | Brake pedal switch | — | W72 | — | 0.5 | T12-C3-19 | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | W75 | — | 0.5 | T12-C3-34 | — | — | — |
| 25 | Engine speed pulse (tacho) | — | W57 | — | 0.5 | T12-C3-30 | — | — | — |
| 26 | Vehicle speed output | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code | — | — | — | — | — | — | — | — |
| 28 | A/C switch signal | — | W73 | — | 0.5 | T12-C3-20 | — | — | — |
| 29 | Service check signal | — | — | — | — | — | — | — | — |
| 30 | Write enable signal | — | — | — | — | — | — | — | — |
| 31 | Unused cavity | — | — | — | — | — | — | — | — |
RLY1-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W39 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W40 | — | 0.5 | T12-C1-3 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W38 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W37 | — | 0.5 | OEM-B-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-A-23 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | TB-J-GND | — | — | — |
| 1 | — | — | W15 | — | 0.5 | T12-C2-21 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | T12-C2-33 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | T12-C1-31 | — | — | — |
| 1 | — | — | W38 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W39 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-A-21 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-E-5 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | T12-C2-9 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-8 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-9 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E-3 | — | — | — |
| 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 | — | W27 | — | 0.5 | OEM-A-14 | — | — | — |
| 2 | Coil 11 | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W40 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| 4 | PWM 2 | — | W36 | — | 0.5 | OEM-E-7 | — | — | — |
| 5 | PWM 1 | — | W35 | — | 0.5 | OEM-E-17 | — | — | — |
| 6 | Motor 1 + | — | W34 | — | 0.5 | TB-J-M+ | — | — | — |
| 7 | Motor 1 - | — | W33 | — | 0.5 | TB-J-M- | — | — | — |
| 8 | Injector 11 | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W29 | — | 0.5 | OEM-B-5 | — | — | — |
| 10 | Coil 1 | — | W25 | — | 0.5 | OEM-A-16 | — | — | — |
| 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 | — | — | — | — | — | — | — | — |
| 16 | Injector 5 | — | — | — | — | — | — | — | — |
| 17 | Injector 2 | — | W30 | — | 0.5 | OEM-B-4 | — | — | — |
| 18 | Coil 2 | — | W26 | — | 0.5 | OEM-A-15 | — | — | — |
| 19 | Coil 8 | — | — | — | — | — | — | — | — |
| 20 | Coil 9 | — | — | — | — | — | — | — | — |
| 21 | Injector 9 | — | — | — | — | — | — | — | — |
| 22 | Injector 10 | — | — | — | — | — | — | — | — |
| 23 | Injector 8 | — | — | — | — | — | — | — | — |
| 24 | Injector 7 | — | — | — | — | — | — | — | — |
| 25 | Injector 4 | — | W32 | — | 0.5 | OEM-B-2 | — | — | — |
| 26 | Coil 4 | — | W28 | — | 0.5 | OEM-A-13 | — | — | — |
| 27 | Coil 6 | — | — | — | — | — | — | — | — |
| 28 | Coil 10 | — | — | — | — | — | — | — | — |
| 29 | Motor 2 + | — | — | — | — | — | — | — | — |
| 30 | Motor 2 - | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | Injector 12 | — | — | — | — | — | — | — | — |
| 33 | Coil 12 | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W31 | — | 0.5 | OEM-B-3 | — | — | — |
T12-C2
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W42 | — | 0.5 | OEM-A-25 | — | — | — |
| 2 | Wheel 1 | — | W65 | — | 0.5 | OEM-A-18 | — | — | — |
| 3 | Analogue 10 | — | W64 | — | 0.5 | OEM-E-16 | — | — | — |
| 4 | Digital 1 | — | W66 | — | 0.5 | OEM-B-11 | — | — | — |
| 5 | Analogue 3 | — | W43 | — | 0.5 | OEM-A-26 | — | — | — |
| 6 | Analogue 4 | — | W45 | — | 0.5 | TB-J-TPS1 | — | — | — |
| 7 | Thermistor 1 | — | W44 | — | 0.5 | OEM-B-8 | — | — | — |
| 8 | Digital 2 | — | W67 | — | 0.5 | OEM-D-1 | — | — | — |
| 9 | 5v Output | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 10 | Analogue 1 | — | W41 | — | 0.5 | OEM-A-30 | — | — | — |
| 11 | Digital 3 | — | W68 | — | 0.5 | OEM-D-4 | — | — | — |
| 12 | Crank | — | W22 | — | 0.5 | OEM-A-7 | — | — | — |
| 13 | Analogue 12 | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | W69 | — | 0.5 | OEM-D-7 | — | — | — |
| 15 | Digital 5 | — | W70 | — | 0.5 | OEM-D-8 | — | — | — |
| 16 | Analogue 11 | — | — | — | — | — | — | — | — |
| 17 | Thermistor 3 | — | W60 | — | 0.5 | OEM-B-17 | — | — | — |
| 18 | Analogue 5 | — | W46 | — | 0.5 | TB-J-TPS2 | — | — | — |
| 19 | Analogue 6 | — | W58 | — | 0.5 | OEM-E-20 | — | — | — |
| 20 | Wheel 2 | — | — | — | — | — | — | — | — |
| 21 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W23 | — | 0.5 | OEM-A-6 | — | — | — |
| 23 | Cam 3 | — | — | — | — | — | — | — | — |
| 24 | 5v Output | — | W21 | — | 0.5 | TB-J-VCC | — | — | — |
| 25 | Thermistor 2 | — | W59 | — | 0.5 | OEM-E-1 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | Digital 6 | — | W71 | — | 0.5 | OEM-D-9 | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | Cam 2 | — | — | — | — | — | — | — | — |
| 30 | Cam 4 | — | — | — | — | — | — | — | — |
| 31 | Wheel 3 | — | — | — | — | — | — | — | — |
| 32 | Wheel 4 | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | W63 | — | 0.5 | OEM-E-15 | — | — | — |
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 | — | W52 | — | 0.5 | OEM-A-10 | — | — | — |
| 4 | PWM 9 | — | W54 | — | 0.5 | OEM-B-18 | — | — | — |
| 5 | Lambda 2 Trim Resistor | — | — | — | — | — | — | — | — |
| 6 | Lambda 2 Nernst Voltage | — | — | — | — | — | — | — | — |
| 7 | Lambda 1 Pump Current | — | — | — | — | — | — | — | — |
| 8 | Lambda 1 VGND | — | — | — | — | — | — | — | — |
| 9 | Lambda 1 Heater Negative | — | W51 | — | 0.5 | OEM-E-21 | — | — | — |
| 10 | PWM 8 | — | W53 | — | 0.5 | OEM-B-15 | — | — | — |
| 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 | — | W61 | — | 0.5 | OEM-B-13 | — | — | — |
| 18 | Analogue 8 | — | W62 | — | 0.5 | OEM-E-14 | — | — | — |
| 19 | Digital 7 | — | W72 | — | 0.5 | OEM-E-22 | — | — | — |
| 20 | Digital 8 | — | W73 | — | 0.5 | OEM-E-28 | — | — | — |
| 21 | Digital 9 | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W47 | — | 0.5 | OEM-D-15 | — | — | — |
| 23 | PWM 5 | — | W48 | — | 0.5 | OEM-E-12 | — | — | — |
| 24 | PWM 6 | — | W49 | — | 0.5 | OEM-E-18 | — | — | — |
| 25 | PWM 7 | — | W50 | — | 0.5 | OEM-E-8 | — | — | — |
| 26 | Permanent 12v | — | — | — | — | — | — | — | — |
| 27 | Permanent 12v | — | — | — | — | — | — | — | — |
| 28 | PWM 10 | — | W55 | — | 0.5 | OEM-B-21 | — | — | — |
| 29 | PWM 11 | — | W56 | — | 0.5 | OEM-E-19 | — | — | — |
| 30 | PWM 12 | — | W57 | — | 0.5 | OEM-E-25 | — | — | — |
| 31 | Knock 1 | — | W24 | — | 0.5 | OEM-A-1 | — | — | — |
| 32 | Knock 2 | — | — | — | — | — | — | — | — |
| 33 | CAN 2 High | — | W74 | — | 0.5 | OEM-E-11 | — | — | — |
| 34 | CAN 2 Low | — | W75 | — | 0.5 | OEM-E-24 | — | — | — |
TB-J
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| TPS1 | Throttle position 1 | — | W45 | — | 0.5 | T12-C2-6 | — | — | — |
| VCC | Throttle sensor 5V supply | — | W21 | — | 0.5 | T12-C2-24 | — | — | — |
| TPS2 | Throttle position 2 | — | W46 | — | 0.5 | T12-C2-18 | — | — | — |
| GND | Throttle sensor ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| M- | Throttle motor − | — | W33 | — | 0.5 | T12-C1-7 | — | — | — |
| M+ | Throttle motor + | — | W34 | — | 0.5 | T12-C1-6 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Knock sensor | knock_in | T12-C3-31 | Knock 1 | knock_in | single_source | |
| OEM-A-10 | A/F sensor heater | low_side_out | T12-C3-3 | Lambda 2 Heater Negative | low_side_out | single_source | |
| OEM-A-11 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-13 | Ignition coil 4 | ignition_out | T12-C1-26 | Coil 4 | ignition_out | single_source | |
| OEM-A-14 | Ignition coil 3 | ignition_out | T12-C1-1 | Coil 3 | ignition_out | single_source | |
| OEM-A-15 | Ignition coil 2 | ignition_out | T12-C1-18 | Coil 2 | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 | ignition_out | T12-C1-10 | Coil 1 | ignition_out | single_source | |
| OEM-A-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-18 | Vehicle speed sensor | digital_in | T12-C2-2 | Wheel 1 | digital_in | single_source | |
| OEM-A-19 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-2 | Ignition power 2 | power_in | RLY1-R-COIL+ + RLY1-R-IN + T12-C1-31 | Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) + Ignition 12v In | power_in + power_out | single_source | |
| OEM-A-20 | Sensor voltage 2 | vref | T12-C2-9 | 5v Output | vref | corroborated | |
| OEM-A-21 | Sensor voltage 1 | vref | T12-C2-9 | 5v Output | vref | single_source | |
| OEM-A-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-23 | Sensor ground 2 | sensor_ground | T12-C2-21 + T12-C2-33 + TB-J-GND | Sensor Ground + Sensor Ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-A-24 | Sensor ground 1 | sensor_ground | T12-C2-21 + T12-C2-33 + TB-J-GND | Sensor Ground + Sensor Ground + Throttle sensor ground | sensor_ground | single_source | |
| OEM-A-25 | Accelerator pedal position B | analog_in | T12-C2-1 | Analogue 2 | analog_in | corroborated | |
| OEM-A-26 | Accelerator pedal position A | analog_in | T12-C2-5 | Analogue 3 | analog_in | corroborated | |
| OEM-A-27 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-28 | A/F sensor signal − | — | — | — | — | single_source | |
| OEM-A-29 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-3 | Ignition power 1 | power_in | RLY1-R-COIL+ + RLY1-R-IN + T12-C1-31 | Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) + Ignition 12v In | power_in + power_out | single_source | |
| OEM-A-30 | MAP sensor | analog_in | T12-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor signal + | — | — | — | — | single_source | |
| OEM-A-4 | Power ground 2 | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-5 | Power ground 1 | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-6 | Cam position sensor (T2) | trigger_in | T12-C2-22 | Cam 1 | trigger_in | single_source | |
| OEM-A-7 | Crank position sensor (T1) | trigger_in | T12-C2-12 | Crank | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-9 | Logic ground 1 | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-B-1 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-10 | Alternator L signal | — | — | — | — | single_source | |
| OEM-B-11 | VTEC oil pressure switch | digital_in | T12-C2-4 | Digital 1 | digital_in | single_source | |
| OEM-B-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-13 | Alternator FR signal | analog_in | T12-C3-17 | Analogue 7 | analog_in | single_source | |
| OEM-B-14 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-15 | Engine mount control solenoid | low_side_out | T12-C3-10 | PWM 8 | low_side_out | single_source | |
| OEM-B-16 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-17 | Intake air temp sensor | temp_in | T12-C2-17 | Thermistor 3 | temp_in | single_source | |
| OEM-B-18 | Alternator control | low_side_out | T12-C3-4 | PWM 9 | low_side_out | single_source | |
| OEM-B-19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | conflict | |
| OEM-B-2 | Injector 4 | injector_out | T12-C1-25 | Injector 4 | injector_out | single_source | |
| OEM-B-20 | Throttle actuator command to throttle control module (SEDF) | — | — | — | — | conflict | |
| OEM-B-21 | Evap canister purge valve | low_side_out | T12-C3-28 | PWM 10 | low_side_out | single_source | |
| OEM-B-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-23 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-24 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-3 | Injector 3 | injector_out | T12-C1-34 | Injector 3 | injector_out | single_source | |
| OEM-B-4 | Injector 2 | injector_out | T12-C1-17 | Injector 2 | injector_out | single_source | |
| OEM-B-5 | Injector 1 | injector_out | T12-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-B-6 | VTEC solenoid | high_side_out | RLY1-R-OUT | Relay contact output (switched +12 V to load) | power_out | single_source | |
| OEM-B-7 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-8 | Coolant temp sensor | temp_in | T12-C2-7 | Thermistor 1 | temp_in | single_source | |
| OEM-B-9 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-1 | Cruise set switch | digital_in | T12-C2-8 | Digital 2 | digital_in | single_source | |
| OEM-D-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-11 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-13 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-14 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-15 | Throttle actuator relay | low_side_out | T12-C3-22 | PWM 4 | low_side_out | single_source | |
| OEM-D-16 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-2 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-3 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-4 | Cruise main switch | digital_in | T12-C2-11 | Digital 3 | digital_in | single_source | |
| OEM-D-5 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-7 | Cruise resume switch | digital_in | T12-C2-14 | Digital 4 | digital_in | single_source | |
| OEM-D-8 | Brake pedal position switch | digital_in | T12-C2-15 | Digital 5 | digital_in | single_source | |
| OEM-D-9 | Cruise clutch signal | digital_in | T12-C2-27 | Digital 6 | digital_in | single_source | |
| OEM-E-1 | Coolant temp sensor 2 | temp_in | T12-C2-25 | Thermistor 2 | temp_in | single_source | |
| OEM-E-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-11 | CAN H | can_h | T12-C3-33 | CAN 2 High | can_h | single_source | |
| OEM-E-12 | Radiator fan control | low_side_out | T12-C3-23 | PWM 5 | low_side_out | single_source | |
| OEM-E-13 | Multiplex communication | serial | — | — | — | single_source | |
| OEM-E-14 | Fuel tank pressure sensor | analog_in | T12-C3-18 | Analogue 8 | analog_in | single_source | |
| OEM-E-15 | Electrical load detector | analog_in | T12-C2-34 | Analogue 9 | analog_in | single_source | |
| OEM-E-16 | Power steering load detector | analog_in | T12-C2-3 | Analogue 10 | analog_in | corroborated | |
| OEM-E-17 | Fuel pump relay | low_side_out | T12-C1-5 | PWM 1 | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay | low_side_out | T12-C3-24 | PWM 6 | low_side_out | single_source | |
| OEM-E-19 | Evap canister vent shut valve | low_side_out | T12-C3-29 | PWM 11 | low_side_out | single_source | |
| OEM-E-2 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-20 | Secondary O2 sensor | lambda_nb_in | T12-C2-19 | Analogue 6 | analog_in | single_source | |
| OEM-E-21 | Secondary O2 heater | low_side_out | T12-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-E-22 | Brake pedal switch | digital_in | T12-C3-19 | Digital 7 | digital_in | single_source | |
| OEM-E-23 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-24 | CAN L | can_l | T12-C3-34 | CAN 2 Low | can_l | single_source | |
| OEM-E-25 | Engine speed pulse (tacho) | tacho_out | T12-C3-30 | PWM 12 | low_side_out | single_source | |
| OEM-E-26 | Vehicle speed output | tacho_out | — | — | — | single_source | |
| OEM-E-27 | Immobilizer code | — | — | — | — | single_source | |
| OEM-E-28 | A/C switch signal | digital_in | T12-C3-20 | Digital 8 | digital_in | single_source | |
| OEM-E-29 | Service check signal | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 | ground | T12-C1-13 + T12-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E-30 | Write enable signal | — | — | — | — | single_source | |
| OEM-E-31 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-4 | Sensor ground 3 | sensor_ground | T12-C2-21 + T12-C2-33 + TB-J-GND | Sensor Ground + Sensor Ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-E-5 | Sensor voltage 3 | vref | T12-C2-9 | 5v Output | vref | corroborated | |
| OEM-E-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-7 | Main relay control | low_side_out | T12-C1-4 | PWM 2 | low_side_out | single_source | |
| OEM-E-8 | A/F sensor heater relay | low_side_out | T12-C3-25 | PWM 7 | low_side_out | single_source | |
| OEM-E-9 | Ignition signal | digital_in | — | — | — | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | no route | Ignition power 2 | — | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | no route | Ignition power 1 | — | |
| W3 | SP-14V-1 | T12-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W4 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 | — | |
| W5 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 | — | |
| W6 | OEM-A-8 | SP-GND-1 | 0.85 | no route | Logic ground 2 | — | |
| W7 | OEM-A-9 | SP-GND-1 | 0.85 | no route | Logic ground 1 | — | |
| W8 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 | — | |
| 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-A-23 | SP-0V-1 | 0.5 | no route | Sensor ground 2 | — | |
| W12 | OEM-A-24 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W13 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 | — | |
| W14 | TB-J-GND | SP-0V-1 | 0.5 | no route | Throttle sensor ground | — | |
| W15 | SP-0V-1 | T12-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W16 | SP-0V-1 | T12-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W17 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor voltage 2 | — | |
| W18 | OEM-A-21 | SP-5V1-1 | 0.5 | no route | Sensor voltage 1 | — | |
| W19 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor voltage 3 | — | |
| W20 | SP-5V1-1 | T12-C2-9 | 0.5 | no route | 5v Output | — | |
| W21 | TB-J-VCC | T12-C2-24 | 0.5 | no route | Throttle sensor 5V supply | — | |
| W22 | OEM-A-7 | T12-C2-12 | 0.5 | no route | Crank position sensor (T1) | — | |
| W23 | OEM-A-6 | T12-C2-22 | 0.5 | no route | Cam position sensor (T2) | — | |
| W24 | OEM-A-1 | T12-C3-31 | 0.5 | no route | Knock sensor | — | |
| W25 | OEM-A-16 | T12-C1-10 | 0.5 | no route | Ignition coil 1 | — | |
| W26 | OEM-A-15 | T12-C1-18 | 0.5 | no route | Ignition coil 2 | — | |
| W27 | OEM-A-14 | T12-C1-1 | 0.5 | no route | Ignition coil 3 | — | |
| W28 | OEM-A-13 | T12-C1-26 | 0.5 | no route | Ignition coil 4 | — | |
| W29 | OEM-B-5 | T12-C1-9 | 0.5 | no route | Injector 1 | — | |
| W30 | OEM-B-4 | T12-C1-17 | 0.5 | no route | Injector 2 | — | |
| W31 | OEM-B-3 | T12-C1-34 | 0.5 | no route | Injector 3 | — | |
| W32 | OEM-B-2 | T12-C1-25 | 0.5 | no route | Injector 4 | — | |
| W33 | TB-J-M- | T12-C1-7 | 0.5 | no route | Throttle motor − | — | |
| W34 | TB-J-M+ | T12-C1-6 | 0.5 | no route | Throttle motor + | — | |
| W35 | OEM-E-17 | T12-C1-5 | 0.5 | no route | Fuel pump relay | — | |
| W36 | OEM-E-7 | T12-C1-4 | 0.5 | no route | Main relay control | — | |
| W37 | OEM-B-6 | RLY1-R-OUT | 0.5 | no route | VTEC solenoid | — | |
| W38 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W39 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W40 | RLY1-R-COIL- | T12-C1-3 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W41 | OEM-A-30 | T12-C2-10 | 0.5 | no route | MAP sensor | — | |
| W42 | OEM-A-25 | T12-C2-1 | 0.5 | no route | Accelerator pedal position B | — | |
| W43 | OEM-A-26 | T12-C2-5 | 0.5 | no route | Accelerator pedal position A | — | |
| W44 | OEM-B-8 | T12-C2-7 | 0.5 | no route | Coolant temp sensor | — | |
| W45 | TB-J-TPS1 | T12-C2-6 | 0.5 | no route | Throttle position 1 | — | |
| W46 | TB-J-TPS2 | T12-C2-18 | 0.5 | no route | Throttle position 2 | — | |
| W47 | OEM-D-15 | T12-C3-22 | 0.5 | no route | Throttle actuator relay | — | |
| W48 | OEM-E-12 | T12-C3-23 | 0.5 | no route | Radiator fan control | — | |
| W49 | OEM-E-18 | T12-C3-24 | 0.5 | no route | A/C clutch relay | — | |
| W50 | OEM-E-8 | T12-C3-25 | 0.5 | no route | A/F sensor heater relay | — | |
| W51 | OEM-E-21 | T12-C3-9 | 0.5 | no route | Secondary O2 heater | — | |
| W52 | OEM-A-10 | T12-C3-3 | 0.5 | no route | A/F sensor heater | — | |
| W53 | OEM-B-15 | T12-C3-10 | 0.5 | no route | Engine mount control solenoid | — | |
| W54 | OEM-B-18 | T12-C3-4 | 0.5 | no route | Alternator control | — | |
| W55 | OEM-B-21 | T12-C3-28 | 0.5 | no route | Evap canister purge valve | — | |
| W56 | OEM-E-19 | T12-C3-29 | 0.5 | no route | Evap canister vent shut valve | — | |
| W57 | OEM-E-25 | T12-C3-30 | 0.5 | no route | Engine speed pulse (tacho) | — | |
| W58 | OEM-E-20 | T12-C2-19 | 0.5 | no route | Secondary O2 sensor | — | |
| W59 | OEM-E-1 | T12-C2-25 | 0.5 | no route | Coolant temp sensor 2 | — | |
| W60 | OEM-B-17 | T12-C2-17 | 0.5 | no route | Intake air temp sensor | — | |
| W61 | OEM-B-13 | T12-C3-17 | 0.5 | no route | Alternator FR signal | — | |
| W62 | OEM-E-14 | T12-C3-18 | 0.5 | no route | Fuel tank pressure sensor | — | |
| W63 | OEM-E-15 | T12-C2-34 | 0.5 | no route | Electrical load detector | — | |
| W64 | OEM-E-16 | T12-C2-3 | 0.5 | no route | Power steering load detector | — | |
| W65 | OEM-A-18 | T12-C2-2 | 0.5 | no route | Vehicle speed sensor | — | |
| W66 | OEM-B-11 | T12-C2-4 | 0.5 | no route | VTEC oil pressure switch | — | |
| W67 | OEM-D-1 | T12-C2-8 | 0.5 | no route | Cruise set switch | — | |
| W68 | OEM-D-4 | T12-C2-11 | 0.5 | no route | Cruise main switch | — | |
| W69 | OEM-D-7 | T12-C2-14 | 0.5 | no route | Cruise resume switch | — | |
| W70 | OEM-D-8 | T12-C2-15 | 0.5 | no route | Brake pedal position switch | — | |
| W71 | OEM-D-9 | T12-C2-27 | 0.5 | no route | Cruise clutch signal | — | |
| W72 | OEM-E-22 | T12-C3-19 | 0.5 | no route | Brake pedal switch | — | |
| W73 | OEM-E-28 | T12-C3-20 | 0.5 | no route | A/C switch signal | — | |
| W74 | OEM-E-11 | T12-C3-33 | 0.5 | no route | CAN H | — | |
| W75 | OEM-E-24 | T12-C3-34 | 0.5 | no route | CAN L | — |
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 |
| connector | S2K-0609-ECU-A | Honda | S2000 2006–09 ECU plug A (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-ECU-B | Honda | S2000 2006–09 ECU plug B (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-ECU-D | Honda | S2000 2006–09 ECU plug D (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-ECU-E | Honda | S2000 2006–09 ECU plug E (P/N unknown) | 1.000 | ea |
| connector | S2K-0609-TB | Honda | 2006–09 S2000 throttle body plug, 6-way (pin numbers from Link forum dealer post; housing P/N unknown) | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 58.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| dbw_motor | TB | Throttle motor + | — | T12-C1-6 | Motor 1 + | hbridge | — |
| dbw_motor | TB | Throttle motor − | — | T12-C1-7 | Motor 1 - | hbridge | — |
| dbw_tps | TB | Throttle position 1 | 0_5v | T12-C2-6 | Analogue 4 | analog_0_5 | — |
| dbw_tps | TB | Throttle position 2 | 0_5v | T12-C2-18 | Analogue 5 | analog_0_5 | — |
Findings
Open (13)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | T12-C3-26 | T12-C3-26 "Permanent 12v" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | T12-C3-27 | T12-C3-27 "Permanent 12v" is required but not wired. |
| warn | DBW_MOTOR_CURRENT | T12-C1-6 | Cannot confirm T12 can drive the throttle motor: T12-C1-6 "Motor 1 +" has no peak rating (motor stalls at ~14 A). |
| warn | DBW_MOTOR_CURRENT | T12-C1-7 | Cannot confirm T12 can drive the throttle motor: T12-C1-7 "Motor 1 -" has no peak rating (motor stalls at ~14 A). |
| warn | DBW_SHARED_5V | OEM-A-20 + OEM-A-21 + OEM-E-5 + SP-5V1-1 + T12-C2-9 | These 5 V supplies are separate in the stock car (OEM-A-20 [s2k_vcc2], OEM-A-21 [s2k_vcc1], OEM-E-5 [s2k_vcc3]) and here share one ECU 5 V (T12-C2-9). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. T12 has 2 5 V sensor supply pin(s). All are in use, so decide: accept the shared supply (and rely on the ECU's DBW fault checks), or add a separate regulated 5 V for the sub tracks. |
| warn | LOAD_UNKNOWN | RLY1-R-OUT | RLY1-R-OUT "Relay contact output (switched +12 V to load)" drives OEM-B-6 VTEC solenoid (load 1.0 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T12-C1-17 | T12-C1-17 "Injector 2" drives OEM-B-4 Injector 2 (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T12-C1-25 | T12-C1-25 "Injector 4" drives OEM-B-2 Injector 4 (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T12-C1-34 | T12-C1-34 "Injector 3" drives OEM-B-3 Injector 3 (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T12-C1-9 | T12-C1-9 "Injector 1" drives OEM-B-5 Injector 1 (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | SUPPLY_GROUP | OEM-A-20 + OEM-A-21 + OEM-E-5 + SP-5V1-1 + T12-C2-9 | Supplies meant to stay independent share one net: OEM-A-20 [s2k_vcc2], OEM-A-21 [s2k_vcc1], OEM-E-5 [s2k_vcc3]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all. |
| info | NET_FAMILY | OEM-E-25 ↔ T12-C3-30 | OEM-E-25 "Engine speed pulse (tacho)" [tacho_out] is wired to T12-C3-30 "PWM 12" [low_side_out]. Tacho as a low-side output: check the tach needs a pull-up. |
| info | UNMAPPED | OEM | 11 optional OEM pins are not mapped: OEM-A-28 A/F sensor signal −; OEM-A-31 A/F sensor signal +; OEM-B-10 Alternator L signal; OEM-B-19 Throttle actuator command to throttle control module (SEFD); OEM-B-20 Throttle actuator command to throttle control module (SEDF); OEM-E-13 Multiplex communication; OEM-E-26 Vehicle speed output; OEM-E-27 Immobilizer code; OEM-E-29 Service check signal; OEM-E-30 Write enable signal; OEM-E-9 Ignition signal |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Fit check: unconfirmed. Confirm these before building: - Throttle motor draws ≥ ~14 A at stall; this ECU's H-bridge rating is not known Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - T12-C3 26: Permanent 12v: required by DTAFast T12 but no stock pin feeds it; wire by hand - T12-C3 27: Permanent 12v: required by DTAFast T12 but no stock pin feeds it; wire by hand Not wired: - OEM-E 9: Ignition signal: 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-E 26: Vehicle speed output: no free frequency_out/tacho/low_side/ls_hs on DTAFast T12 - OEM-E 13: Multiplex communication: no free k_line on DTAFast T12 - OEM-A 28: A/F sensor signal −: not classified in the library; wire by hand - OEM-A 31: A/F sensor signal +: not classified in the library; wire by hand - OEM-B 10: Alternator L signal: not classified in the library; wire by hand - OEM-B 19: Throttle actuator command to throttle control module (SEFD): not classified in the library; wire by hand - OEM-B 20: Throttle actuator command to throttle control module (SEDF): not classified in the library; wire by hand - OEM-E 27: Immobilizer code: not classified in the library; wire by hand - OEM-E 29: Service check signal: not classified in the library; wire by hand - OEM-E 30: Write enable signal: not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | AEM 30-6053 Series 2 Plug & Play EMS, 2006–2008 S2000 AP2 (original ECU pinout) | https://documents.aemelectronics.com/techlibrary_30-6053_series_2_plug___play_ems.pdf | — | 2026-10-05 | ecc8006f849f |
| 4 | vendor_doc | Bosch relay catalogue (mini ISO relays) | https://www.bosch-ibusiness.com/media/downloads/kataloge/relay/2025_10_bosch_relay_catalogue.pdf | archive | 2026-10-05 | 20344cff1ef3 |
| 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 | community_copy | Honda S2000 Service Manual 2000–2008, Fuel and Emissions Systems | https://www.s2000.wiki/view/images/7/7f/Service_Manual_2000-2008.pdf | archive | 2026-10-05 | a470cfc928e9 |
| 4 | vendor_doc | Omron G8V-RH-1C7T-R-DC12 high-current micro 280 automotive relay datasheet | https://www.alldatasheet.com/datasheet-pdf/pdf/333797/OMRON/G8V-RH-1C7T-R-DC12.html | — | 2026-10-05 | 764a0505a941 |
| 3 | vendor_doc | ScienceofSpeed Link G4X ECU, S2000 2006–09 (product page) | https://www.scienceofspeed.com/s2000-2000-09/scienceofspeed-link-g4x-ecu-s2000-2006-09-enpp-3822.html | archive | 2026-10-05 | 643bc0efd6d7 |
| 2 | forum | Link forum: dbw wiring (07/08 S2000, ViPEC V88) | https://forums.linkecu.com/topic/313-dbw-wiring/ | — | 2026-10-05 | b788a1b47b9e |