RSX Type-S 2005-06 (K20Z1) → DTAFast T2 (auto)
RSX Type-S 2005-06 (K20Z1) — DTAFast — T2
⚠ 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 | 6: read the Findings page before cutting any wire |
| Size of the job | 44 wires · 8 connectors · 6 part lines |
| Tools | 715131-1 · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 3-1447221-4 · 316836-1 |
| 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 | T2-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-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | T2-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | T2-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-5 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | T2-C1-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | T2-C1-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E-6 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-5V1-1 | T2-C1-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-7 | T2-C1-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-19 | T2-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-16 | T2-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-15 | T2-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B-5 | T2-C1-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B-4 | T2-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B-3 | T2-C1-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-2 | T2-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E-8 | T2-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-30 | T2-C1-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-29 | T2-C1-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-8 | T2-C1-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E-12 | T2-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E-17 | T2-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E-18 | T2-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E-9 | T2-C1-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-31 | T2-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-28 | T2-C1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E-20 | T2-C1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B-17 | T2-C1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-13 | T2-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E-14 | T2-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E-15 | T2-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-18 | T2-C1-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B-10 | T2-C1-30 | 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 | T2-C1-27 | T2-C1-28 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | T2-C1-31 | T2-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 3 | T2-C1-31 | T2-C1-28 | open (OL) | +12 V supply must not touch sensor ground | |
| 4 | T2-C1-13 | T2-C1-27 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | T2-C1-31 | T2-C1-27 | 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-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Knock sensor (KS) | — | — | — | — | — | — | — | — |
| 2 | Ignition power 2 (IGP2) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 (IGP1) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 (PG2) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 (PG1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Camshaft position B (CMP B) | — | — | — | — | — | — | — | — |
| 7 | Crank position sensor (CKP) | — | W20 | — | 0.5 | T2-C1-19 | — | — | — |
| 8 | Logic ground 2 (LG2) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Logic ground 1 (LG1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | A/F sensor heater control (AFSHTC) | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Idle air control valve (IACV) | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 (IGPLS4) | — | — | — | — | — | — | — | — |
| 14 | Ignition coil 3 (IGPLS3) | — | — | — | — | — | — | — | — |
| 15 | Ignition coil 2 (IGPLS2) | — | W23 | — | 0.5 | T2-C1-6 | — | — | — |
| 16 | Ignition coil 1 (IGPLS1) | — | W22 | — | 0.5 | T2-C1-3 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | Neutral position switch (NC) | — | W43 | — | 0.5 | T2-C1-11 | — | — | — |
| 19 | Camshaft position A (CMP A) | — | W21 | — | 0.5 | T2-C1-12 | — | — | — |
| 20 | Sensor 5V supply 2 (VCC2) | — | W16 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor 5V supply 1 (VCC1) | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | Sensor ground 2 (SG2) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Sensor ground 1 (SG1) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | A/F sensor - (AFS-, wideband Vs) | — | W37 | — | 0.5 | T2-C1-2 | — | — | — |
| 29 | Throttle position sensor (TPS) | — | W30 | — | 0.5 | T2-C1-22 | — | — | — |
| 30 | Manifold absolute pressure (MAP) | — | W29 | — | 0.5 | T2-C1-20 | — | — | — |
| 31 | A/F sensor + (AFS+, wideband Ip) | — | W36 | — | 0.5 | T2-C1-5 | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTC oil control solenoid (+) | — | — | — | — | — | — | — | — |
| 2 | Injector 4 (INJ4) | — | W27 | — | 0.5 | T2-C1-9 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W26 | — | 0.5 | T2-C1-8 | — | — | — |
| 4 | Injector 2 (INJ2) | — | W25 | — | 0.5 | T2-C1-9 | — | — | — |
| 5 | Injector 1 (INJ1) | — | W24 | — | 0.5 | T2-C1-8 | — | — | — |
| 6 | VTEC solenoid (VTS) | — | — | — | — | — | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor (ECT) | — | W31 | — | 0.5 | T2-C1-24 | — | — | — |
| 9 | — | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal (ALTL) | — | W44 | — | 0.5 | T2-C1-30 | — | — | — |
| 11 | VTEC oil pressure switch (VTPSW) | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal (ALTF) | — | W40 | — | 0.5 | T2-C1-25 | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor (IAT) | — | W39 | — | 0.5 | T2-C1-32 | — | — | — |
| 18 | Alternator control (ALTC) | — | — | — | — | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve (PCS) | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | — | — | — | — | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | Reverse lockout solenoid (RVS, Type-S) | — | — | — | — | — | — | — | — |
| 4 | Logic ground 3 (LG3) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Sensor ground 3 (SG3) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sensor 5V supply 3 (VCC3) | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | Main relay control (MRLY) | — | W28 | — | 0.5 | T2-C1-1 | — | — | — |
| 9 | A/F sensor heater relay control (AFSHTCR) | — | W35 | — | 0.5 | T2-C1-15 | — | — | — |
| 10 | Ignition switch signal (IG1) | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Radiator fan control (FANC) | — | W32 | — | 0.5 | T2-C1-10 | — | — | — |
| 13 | Multiplex communication (SEFMJ) | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor (FTP) | — | W41 | — | 0.5 | T2-C1-33 | — | — | — |
| 15 | Electrical load detector (ELD) | — | W42 | — | 0.5 | T2-C1-34 | — | — | — |
| 16 | Power steering pressure switch (PSPSW) | — | — | — | — | — | — | — | — |
| 17 | Immobilizer fuel pump relay (IMO FPR) | — | W33 | — | 0.5 | T2-C1-18 | — | — | — |
| 18 | A/C clutch relay (ACC) | — | W34 | — | 0.5 | T2-C1-26 | — | — | — |
| 19 | Evap vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 20 | Secondary heated O2 sensor (SHO2S) | — | W38 | — | 0.5 | T2-C1-23 | — | — | — |
| 21 | Secondary O2 heater control (SO2SHTC) | — | — | — | — | — | — | — | — |
| 22 | Brake switch (BKSW) | — | — | — | — | — | — | — | — |
| 23 | K-line (diagnostic) | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
| 25 | Engine speed pulse / tacho (NEP) | — | — | — | — | — | — | — | — |
| 26 | Vehicle speed output (VSSOUT) | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code (IMOCD) | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | Service check signal (SCS) | — | — | — | — | — | — | — | — |
| 30 | Write enable signal (WEN) | — | — | — | — | — | — | — | — |
| 31 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
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-5 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | T2-C1-28 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | T2-C1-29 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | T2-C1-31 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W16 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-A-21 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-E-6 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | T2-C1-27 | — | — | — |
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-4 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | T2-C1-13 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | T2-C1-14 | — | — | — |
T2-C1
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PWM 1 | — | W28 | — | 0.5 | OEM-E-8 | — | — | — |
| 2 | Lambda Nernst Voltage | — | W37 | — | 0.5 | OEM-A-28 | — | — | — |
| 3 | Coil 1 | — | W22 | — | 0.5 | OEM-A-16 | — | — | — |
| 4 | Lambda VGND | — | — | — | — | — | — | — | — |
| 5 | Lambda Pump Current | — | W36 | — | 0.5 | OEM-A-31 | — | — | — |
| 6 | Coil 2 | — | W23 | — | 0.5 | OEM-A-15 | — | — | — |
| 7 | Lambda Trim Resistor | — | — | — | — | — | — | — | — |
| 8 | Injector 1 | — | W24 | — | 0.5 | OEM-B-5 | — | — | — |
| 8 | Injector 1 | — | W26 | — | 0.5 | OEM-B-3 | — | — | — |
| 9 | Injector 2 | — | W25 | — | 0.5 | OEM-B-4 | — | — | — |
| 9 | Injector 2 | — | W27 | — | 0.5 | OEM-B-2 | — | — | — |
| 10 | PWM 2 | — | W32 | — | 0.5 | OEM-E-12 | — | — | — |
| 11 | Digital 1 | — | W43 | — | 0.5 | OEM-A-18 | — | — | — |
| 12 | Wheel 1 | — | W21 | — | 0.5 | OEM-A-19 | — | — | — |
| 13 | Power Ground 1 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Lambda Heater Negative | — | W35 | — | 0.5 | OEM-E-9 | — | — | — |
| 16 | CAN High | — | — | — | — | — | — | — | — |
| 17 | CAN Low | — | — | — | — | — | — | — | — |
| 18 | PWM 3 | — | W33 | — | 0.5 | OEM-E-17 | — | — | — |
| 19 | Crank | — | W20 | — | 0.5 | OEM-A-7 | — | — | — |
| 20 | Analogue 1 | — | W29 | — | 0.5 | OEM-A-30 | — | — | — |
| 21 | Permanent 12v | — | — | — | — | — | — | — | — |
| 22 | Analogue 2 | — | W30 | — | 0.5 | OEM-A-29 | — | — | — |
| 23 | Analogue 3 | — | W38 | — | 0.5 | OEM-E-20 | — | — | — |
| 24 | Thermistor 1 | — | W31 | — | 0.5 | OEM-B-8 | — | — | — |
| 25 | Analogue 4 | — | W40 | — | 0.5 | OEM-B-13 | — | — | — |
| 26 | PWM 4 | — | W34 | — | 0.5 | OEM-E-18 | — | — | — |
| 27 | 5v Output | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 28 | Sensor Ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 29 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Digital 2 | — | W44 | — | 0.5 | OEM-B-10 | — | — | — |
| 31 | Ignition 12v In | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | Thermistor 2 | — | W39 | — | 0.5 | OEM-B-17 | — | — | — |
| 33 | Analogue 5 | — | W41 | — | 0.5 | OEM-E-14 | — | — | — |
| 34 | Analogue 6 | — | W42 | — | 0.5 | OEM-E-15 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Knock sensor (KS) | knock_in | — | — | — | single_source | |
| OEM-A-10 | A/F sensor heater control (AFSHTC) | low_side_out | — | — | — | single_source | |
| OEM-A-12 | Idle air control valve (IACV) | low_side_out | — | — | — | single_source | |
| OEM-A-13 | Ignition coil 4 (IGPLS4) | ignition_out | — | — | — | single_source | |
| OEM-A-14 | Ignition coil 3 (IGPLS3) | ignition_out | — | — | — | single_source | |
| OEM-A-15 | Ignition coil 2 (IGPLS2) | ignition_out | T2-C1-6 | Coil 2 | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 (IGPLS1) | ignition_out | T2-C1-3 | Coil 1 | ignition_out | single_source | |
| OEM-A-18 | Neutral position switch (NC) | digital_in | T2-C1-11 | Digital 1 | digital_in | single_source | |
| OEM-A-19 | Camshaft position A (CMP A) | trigger_in | T2-C1-12 | Wheel 1 | digital_in | single_source | |
| OEM-A-2 | Ignition power 2 (IGP2) | power_in | T2-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-A-20 | Sensor 5V supply 2 (VCC2) | vref | T2-C1-27 | 5v Output | vref | single_source | |
| OEM-A-21 | Sensor 5V supply 1 (VCC1) | vref | T2-C1-27 | 5v Output | vref | single_source | |
| OEM-A-23 | Sensor ground 2 (SG2) | sensor_ground | T2-C1-28 + T2-C1-29 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A-24 | Sensor ground 1 (SG1) | sensor_ground | T2-C1-28 + T2-C1-29 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A-28 | A/F sensor - (AFS-, wideband Vs) | wb_vs | T2-C1-2 | Lambda Nernst Voltage | wb_vs | single_source | |
| OEM-A-29 | Throttle position sensor (TPS) | analog_in | T2-C1-22 | Analogue 2 | analog_in | single_source | |
| OEM-A-3 | Ignition power 1 (IGP1) | power_in | T2-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-A-30 | Manifold absolute pressure (MAP) | analog_in | T2-C1-20 | Analogue 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor + (AFS+, wideband Ip) | wb_ip | T2-C1-5 | Lambda Pump Current | wb_ip | single_source | |
| OEM-A-4 | Power ground 2 (PG2) | ground | T2-C1-13 + T2-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-5 | Power ground 1 (PG1) | ground | T2-C1-13 + T2-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-6 | Camshaft position B (CMP B) | trigger_in | — | — | — | single_source | |
| OEM-A-7 | Crank position sensor (CKP) | trigger_in | T2-C1-19 | Crank | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 (LG2) | ground | T2-C1-13 + T2-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-9 | Logic ground 1 (LG1) | ground | T2-C1-13 + T2-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-B-1 | VTC oil control solenoid (+) | low_side_out | — | — | — | single_source | |
| OEM-B-10 | Alternator L signal (ALTL) | digital_in | T2-C1-30 | Digital 2 | digital_in | single_source | |
| OEM-B-11 | VTEC oil pressure switch (VTPSW) | digital_in | — | — | — | single_source | |
| OEM-B-13 | Alternator FR signal (ALTF) | analog_in | T2-C1-25 | Analogue 4 | analog_in | single_source | |
| OEM-B-17 | Intake air temp sensor (IAT) | temp_in | T2-C1-32 | Thermistor 2 | temp_in | single_source | |
| OEM-B-18 | Alternator control (ALTC) | low_side_out | — | — | — | single_source | |
| OEM-B-2 | Injector 4 (INJ4) | injector_out | T2-C1-9 | Injector 2 | injector_out | single_source | |
| OEM-B-21 | Evap canister purge valve (PCS) | low_side_out | — | — | — | single_source | |
| OEM-B-3 | Injector 3 (INJ3) | injector_out | T2-C1-8 | Injector 1 | injector_out | single_source | |
| OEM-B-4 | Injector 2 (INJ2) | injector_out | T2-C1-9 | Injector 2 | injector_out | single_source | |
| OEM-B-5 | Injector 1 (INJ1) | injector_out | T2-C1-8 | Injector 1 | injector_out | single_source | |
| OEM-B-6 | VTEC solenoid (VTS) | low_side_out | — | — | — | single_source | |
| OEM-B-8 | Coolant temp sensor (ECT) | temp_in | T2-C1-24 | Thermistor 1 | temp_in | single_source | |
| OEM-E-10 | Ignition switch signal (IG1) | digital_in | — | — | — | single_source | |
| OEM-E-12 | Radiator fan control (FANC) | low_side_out | T2-C1-10 | PWM 2 | low_side_out | single_source | |
| OEM-E-13 | Multiplex communication (SEFMJ) | serial | — | — | — | single_source | |
| OEM-E-14 | Fuel tank pressure sensor (FTP) | analog_in | T2-C1-33 | Analogue 5 | analog_in | single_source | |
| OEM-E-15 | Electrical load detector (ELD) | analog_in | T2-C1-34 | Analogue 6 | analog_in | single_source | |
| OEM-E-16 | Power steering pressure switch (PSPSW) | digital_in | — | — | — | single_source | |
| OEM-E-17 | Immobilizer fuel pump relay (IMO FPR) | low_side_out | T2-C1-18 | PWM 3 | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay (ACC) | low_side_out | T2-C1-26 | PWM 4 | low_side_out | single_source | |
| OEM-E-19 | Evap vent shut valve (VSV) | low_side_out | — | — | — | single_source | |
| OEM-E-20 | Secondary heated O2 sensor (SHO2S) | lambda_nb_in | T2-C1-23 | Analogue 3 | analog_in | single_source | |
| OEM-E-21 | Secondary O2 heater control (SO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-E-22 | Brake switch (BKSW) | digital_in | — | — | — | single_source | |
| OEM-E-23 | K-line (diagnostic) | serial | — | — | — | single_source | |
| OEM-E-25 | Engine speed pulse / tacho (NEP) | tacho_out | — | — | — | single_source | |
| OEM-E-26 | Vehicle speed output (VSSOUT) | tacho_out | — | — | — | single_source | |
| OEM-E-27 | Immobilizer code (IMOCD) | — | — | — | — | single_source | |
| OEM-E-29 | Service check signal (SCS) | — | — | — | — | single_source | |
| OEM-E-3 | Reverse lockout solenoid (RVS, Type-S) | low_side_out | — | — | — | single_source | |
| OEM-E-30 | Write enable signal (WEN) | — | — | — | — | single_source | |
| OEM-E-31 | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | single_source | |
| OEM-E-4 | Logic ground 3 (LG3) | ground | T2-C1-13 + T2-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E-5 | Sensor ground 3 (SG3) | sensor_ground | T2-C1-28 + T2-C1-29 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-E-6 | Sensor 5V supply 3 (VCC3) | vref | T2-C1-27 | 5v Output | vref | single_source | |
| OEM-E-8 | Main relay control (MRLY) | low_side_out | T2-C1-1 | PWM 1 | low_side_out | single_source | |
| OEM-E-9 | A/F sensor heater relay control (AFSHTCR) | low_side_out | T2-C1-15 | Lambda Heater Negative | low_side_out | 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 (IGP2) | — | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | no route | Ignition power 1 (IGP1) | — | |
| W3 | SP-14V-1 | T2-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W4 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 (PG2) | — | |
| W5 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 (PG1) | — | |
| W6 | OEM-A-8 | SP-GND-1 | 0.85 | no route | Logic ground 2 (LG2) | — | |
| W7 | OEM-A-9 | SP-GND-1 | 0.85 | no route | Logic ground 1 (LG1) | — | |
| W8 | OEM-E-4 | SP-GND-1 | 0.85 | no route | Logic ground 3 (LG3) | — | |
| W9 | SP-GND-1 | T2-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W10 | SP-GND-1 | T2-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W11 | OEM-A-23 | SP-0V-1 | 0.5 | no route | Sensor ground 2 (SG2) | — | |
| W12 | OEM-A-24 | SP-0V-1 | 0.5 | no route | Sensor ground 1 (SG1) | — | |
| W13 | OEM-E-5 | SP-0V-1 | 0.5 | no route | Sensor ground 3 (SG3) | — | |
| W14 | SP-0V-1 | T2-C1-28 | 0.5 | no route | Sensor Ground | — | |
| W15 | SP-0V-1 | T2-C1-29 | 0.5 | no route | Sensor Ground | — | |
| W16 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 2 (VCC2) | — | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 1 (VCC1) | — | |
| W18 | OEM-E-6 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 3 (VCC3) | — | |
| W19 | SP-5V1-1 | T2-C1-27 | 0.5 | no route | 5v Output | — | |
| W20 | OEM-A-7 | T2-C1-19 | 0.5 | no route | Crank position sensor (CKP) | — | |
| W21 | OEM-A-19 | T2-C1-12 | 0.5 | no route | Camshaft position A (CMP A) | — | |
| W22 | OEM-A-16 | T2-C1-3 | 0.5 | no route | Ignition coil 1 (IGPLS1) | — | |
| W23 | OEM-A-15 | T2-C1-6 | 0.5 | no route | Ignition coil 2 (IGPLS2) | — | |
| W24 | OEM-B-5 | T2-C1-8 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W25 | OEM-B-4 | T2-C1-9 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W26 | OEM-B-3 | T2-C1-8 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W27 | OEM-B-2 | T2-C1-9 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W28 | OEM-E-8 | T2-C1-1 | 0.5 | no route | Main relay control (MRLY) | — | |
| W29 | OEM-A-30 | T2-C1-20 | 0.5 | no route | Manifold absolute pressure (MAP) | — | |
| W30 | OEM-A-29 | T2-C1-22 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W31 | OEM-B-8 | T2-C1-24 | 0.5 | no route | Coolant temp sensor (ECT) | — | |
| W32 | OEM-E-12 | T2-C1-10 | 0.5 | no route | Radiator fan control (FANC) | — | |
| W33 | OEM-E-17 | T2-C1-18 | 0.5 | no route | Immobilizer fuel pump relay (IMO FPR) | — | |
| W34 | OEM-E-18 | T2-C1-26 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W35 | OEM-E-9 | T2-C1-15 | 0.5 | no route | A/F sensor heater relay control (AFSHTCR) | — | |
| W36 | OEM-A-31 | T2-C1-5 | 0.5 | no route | A/F sensor + (AFS+, wideband Ip) | — | |
| W37 | OEM-A-28 | T2-C1-2 | 0.5 | no route | A/F sensor - (AFS-, wideband Vs) | — | |
| W38 | OEM-E-20 | T2-C1-23 | 0.5 | no route | Secondary heated O2 sensor (SHO2S) | — | |
| W39 | OEM-B-17 | T2-C1-32 | 0.5 | no route | Intake air temp sensor (IAT) | — | |
| W40 | OEM-B-13 | T2-C1-25 | 0.5 | no route | Alternator FR signal (ALTF) | — | |
| W41 | OEM-E-14 | T2-C1-33 | 0.5 | no route | Fuel tank pressure sensor (FTP) | — | |
| W42 | OEM-E-15 | T2-C1-34 | 0.5 | no route | Electrical load detector (ELD) | — | |
| W43 | OEM-A-18 | T2-C1-11 | 0.5 | no route | Neutral position switch (NC) | — | |
| W44 | OEM-B-10 | T2-C1-30 | 0.5 | no route | Alternator L signal (ALTL) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 1318682-6 | TE | K-series ECU harness plug A (040-3 HD plug assy, 31P) | 1.000 | ea |
| connector | 353029-1 | TE | K-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P) | 1.000 | ea |
| connector | 353826-1 | TE | K-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P) | 1.000 | ea |
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 29.000 | ea |
| terminal | 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 38.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | NET_MERGED | OEM-B-2 + OEM-B-4 + T2-C1-9 | 2 different OEM functions share one net: OEM-B-2 Injector 4 (INJ4); OEM-B-4 Injector 2 (INJ2) |
| error | NET_MERGED | OEM-B-3 + OEM-B-5 + T2-C1-8 | 2 different OEM functions share one net: OEM-B-3 Injector 3 (INJ3); OEM-B-5 Injector 1 (INJ1) |
| error | PHYS_REQUIRED_OPEN | T2-C1-21 | T2-C1-21 "Permanent 12v" is required but not wired. |
| error | REQUIRED_UNMAPPED | OEM-A-13 | Required OEM function "Ignition coil 4 (IGPLS4)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A-14 | Required OEM function "Ignition coil 3 (IGPLS3)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A-6 | Required OEM function "Camshaft position B (CMP B)" (trigger_in) is not connected to the new ECU. |
| warn | DATASET_GAP | RSX ECU A | 6 of 31 cavities on RSX ECU A have no pin data (11,17,22,25,26,27). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU B | 11 of 24 cavities on RSX ECU B have no pin data (7,9,12,14,15,16,19,20,22,23,24). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU E | 6 of 31 cavities on RSX ECU E have no pin data (1,2,7,11,24,28). Anything there is invisible to these checks. |
| warn | LOAD_UNKNOWN | T2-C1-15 | T2-C1-15 "Lambda Heater Negative" drives OEM-E-9 A/F sensor heater relay control (AFSHTCR) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T2-C1-8 | T2-C1-8 "Injector 1" drives OEM-B-3 Injector 3 (INJ3), OEM-B-5 Injector 1 (INJ1) (load 2.4 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T2-C1-9 | T2-C1-9 "Injector 2" drives OEM-B-2 Injector 4 (INJ4), OEM-B-4 Injector 2 (INJ2) (load 2.4 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-A-19 ↔ T2-C1-12 | OEM-A-19 "Camshaft position A (CMP A)" [trigger_in] is wired to T2-C1-12 "Wheel 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | SUPPLY_GROUP | OEM-A-20 + OEM-A-21 + OEM-E-6 + SP-5V1-1 + T2-C1-27 | Supplies meant to stay independent share one net: OEM-A-20 [k_vcc2], OEM-A-21 [k_vcc1], OEM-E-6 [k_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 | UNMAPPED | OEM | 22 optional OEM pins are not mapped: OEM-A-1 Knock sensor (KS); OEM-A-10 A/F sensor heater control (AFSHTC); OEM-A-12 Idle air control valve (IACV); OEM-B-1 VTC oil control solenoid (+); OEM-B-11 VTEC oil pressure switch (VTPSW); OEM-B-18 Alternator control (ALTC); OEM-B-21 Evap canister purge valve (PCS); OEM-B-6 VTEC solenoid (VTS); OEM-E-10 Ignition switch signal (IG1); OEM-E-13 Multiplex communication (SEFMJ); OEM-E-16 Power steering pressure switch (PSPSW); OEM-E-19 Evap vent shut valve (VSV); OEM-E-21 Secondary O2 heater control (SO2SHTC); OEM-E-22 Brake switch (BKSW); OEM-E-23 K-line (diagnostic); OEM-E-25 Engine speed pulse / tacho (NEP); OEM-E-26 Vehicle speed output (VSSOUT); OEM-E-27 Immobilizer code (IMOCD); OEM-E-29 Service check signal (SCS); OEM-E-3 Reverse lockout solenoid (RVS, Type-S); OEM-E-30 Write enable signal (WEN); OEM-E-31 Malfunction indicator lamp (MIL) |
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-A 6: Camshaft position B (CMP B): no free cam_hall/cam_vr/frequency_in input on DTAFast T2 - OEM-A 14: Ignition coil 3 (IGPLS3): no free ignition output on DTAFast T2 - OEM-A 13: Ignition coil 4 (IGPLS4): no free ignition output on DTAFast T2 - T2-C1 21: Permanent 12v: required by DTAFast T2 but no stock pin feeds it; wire by hand Not wired: - OEM-A 1: Knock sensor (KS): no free knock input on DTAFast T2 - OEM-E 10: Ignition switch signal (IG1): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); DTAFast T2 has no dedicated key-on input - OEM-E 21: Secondary O2 heater control (SO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on DTAFast T2 - OEM-A 10: A/F sensor heater control (AFSHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on DTAFast T2 - OEM-A 12: Idle air control valve (IACV): no free low_side/relay_control/heater_low_side/ls_hs/injector rated ≥ 1.0 A on DTAFast T2 - OEM-B 6: VTEC solenoid (VTS): no free low_side/relay_control/heater_low_side/ls_hs/injector rated ≥ 1.0 A on DTAFast T2 - OEM-B 1: VTC oil control solenoid (+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T2 - OEM-B 18: Alternator control (ALTC): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T2 - OEM-B 21: Evap canister purge valve (PCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T2 - OEM-E 19: Evap vent shut valve (VSV): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T2 - OEM-E 3: Reverse lockout solenoid (RVS, Type-S): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T2 - OEM-E 31: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T2 - OEM-E 25: Engine speed pulse / tacho (NEP): no free tacho/frequency_out/low_side/ls_hs on DTAFast T2 - OEM-E 26: Vehicle speed output (VSSOUT): no free frequency_out/tacho/low_side/ls_hs on DTAFast T2 - OEM-B 11: VTEC oil pressure switch (VTPSW): no free switch_in/frequency_in/analog_0_5 on DTAFast T2 - OEM-E 16: Power steering pressure switch (PSPSW): no free switch_in/frequency_in/analog_0_5 on DTAFast T2 - OEM-E 22: Brake switch (BKSW): no free switch_in/frequency_in/analog_0_5 on DTAFast T2 - OEM-E 13: Multiplex communication (SEFMJ): no free k_line on DTAFast T2 - OEM-E 23: K-line (diagnostic): no free k_line on DTAFast T2 - OEM-E 27: Immobilizer code (IMOCD): not classified in the library; wire by hand - OEM-E 29: Service check signal (SCS): not classified in the library; wire by hand - OEM-E 30: Write enable signal (WEN): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | DTAFast T2 ECU wiring diagram | https://cdn.shopify.com/s/files/1/0848/7508/4108/files/T2_Wiring-Diagram.pdf?v=1728571340 | — | — | — |
| 3 | forum | FFS TechNet: K-series 02-06 RSX ECU pin diagram (Helm) | https://ff-squad.com/technet2/k-series-02-06-rsx-ecu-pin-diagram/ | archive | 2026-10-05 | b2b85002666e |