RSX Type-S 2005-06 (K20Z1) → DTAFast T4 (auto)
RSX Type-S 2005-06 (K20Z1) — DTAFast — T4
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-09
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 2: read the Findings page before cutting any wire |
| Size of the job | 54 wires · 10 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 | T4-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 | T4-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | T4-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 | T4-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | T4-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-20 | T4-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E-6 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-5V1-1 | T4-C2-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-7 | T4-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-19 | T4-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-6 | T4-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-16 | T4-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-15 | T4-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-14 | T4-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-13 | T4-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-5 | T4-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-4 | T4-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-3 | T4-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-2 | T4-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E-8 | T4-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E-12 | T4-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E-17 | T4-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E-18 | T4-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E-9 | T4-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E-21 | T4-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-10 | T4-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-12 | T4-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B-6 | T4-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-31 | T4-C3-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-28 | T4-C3-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-30 | T4-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-29 | T4-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E-20 | T4-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-8 | T4-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B-17 | T4-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B-13 | T4-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E-14 | T4-C2-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E-15 | T4-C3-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-18 | T4-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-B-10 | T4-C2-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-B-11 | T4-C2-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E-16 | T4-C3-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E-22 | T4-C2-34 | 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 | T4-C1-31 | T4-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 2 | T4-C1-31 | T4-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | T4-C2-24 | T4-C2-21 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | T4-C2-9 | T4-C2-21 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 5 | T4-C1-13 | T4-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | T4-C1-13 | T4-C2-9 | open (OL) | power ground must not touch 5 V sensor reference | |
| 7 | T4-C1-31 | T4-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | T4-C1-31 | T4-C2-9 | 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) | — | W22 | — | 0.5 | T4-C2-2 | — | — | — |
| 7 | Crank position sensor (CKP) | — | W20 | — | 0.5 | T4-C2-12 | — | — | — |
| 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) | — | W37 | — | 0.5 | T4-C3-24 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Idle air control valve (IACV) | — | W38 | — | 0.5 | T4-C3-25 | — | — | — |
| 13 | Ignition coil 4 (IGPLS4) | — | W26 | — | 0.5 | T4-C1-26 | — | — | — |
| 14 | Ignition coil 3 (IGPLS3) | — | W25 | — | 0.5 | T4-C1-1 | — | — | — |
| 15 | Ignition coil 2 (IGPLS2) | — | W24 | — | 0.5 | T4-C1-18 | — | — | — |
| 16 | Ignition coil 1 (IGPLS1) | — | W23 | — | 0.5 | T4-C1-10 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | Neutral position switch (NC) | — | W50 | — | 0.5 | T4-C2-4 | — | — | — |
| 19 | Camshaft position A (CMP A) | — | W21 | — | 0.5 | T4-C2-22 | — | — | — |
| 20 | Sensor 5V supply 2 (VCC2) | — | W16 | — | 0.5 | T4-C2-24 | — | — | — |
| 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) | — | W41 | — | 0.5 | T4-C3-12 | — | — | — |
| 29 | Throttle position sensor (TPS) | — | W43 | — | 0.5 | T4-C2-1 | — | — | — |
| 30 | Manifold absolute pressure (MAP) | — | W42 | — | 0.5 | T4-C2-10 | — | — | — |
| 31 | A/F sensor + (AFS+, wideband Ip) | — | W40 | — | 0.5 | T4-C3-7 | — | — | — |
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) | — | W30 | — | 0.5 | T4-C1-25 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W29 | — | 0.5 | T4-C1-34 | — | — | — |
| 4 | Injector 2 (INJ2) | — | W28 | — | 0.5 | T4-C1-17 | — | — | — |
| 5 | Injector 1 (INJ1) | — | W27 | — | 0.5 | T4-C1-9 | — | — | — |
| 6 | VTEC solenoid (VTS) | — | W39 | — | 0.5 | T4-C3-10 | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor (ECT) | — | W45 | — | 0.5 | T4-C2-7 | — | — | — |
| 9 | — | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal (ALTL) | — | W51 | — | 0.5 | T4-C2-14 | — | — | — |
| 11 | VTEC oil pressure switch (VTPSW) | — | W52 | — | 0.5 | T4-C2-15 | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal (ALTF) | — | W47 | — | 0.5 | T4-C2-6 | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor (IAT) | — | W46 | — | 0.5 | T4-C2-25 | — | — | — |
| 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) | — | W31 | — | 0.5 | T4-C1-5 | — | — | — |
| 9 | A/F sensor heater relay control (AFSHTCR) | — | W35 | — | 0.5 | T4-C3-23 | — | — | — |
| 10 | Ignition switch signal (IG1) | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Radiator fan control (FANC) | — | W32 | — | 0.5 | T4-C1-4 | — | — | — |
| 13 | Multiplex communication (SEFMJ) | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor (FTP) | — | W48 | — | 0.5 | T4-C2-19 | — | — | — |
| 15 | Electrical load detector (ELD) | — | W49 | — | 0.5 | T4-C3-17 | — | — | — |
| 16 | Power steering pressure switch (PSPSW) | — | W53 | — | 0.5 | T4-C3-18 | — | — | — |
| 17 | Immobilizer fuel pump relay (IMO FPR) | — | W33 | — | 0.5 | T4-C1-3 | — | — | — |
| 18 | A/C clutch relay (ACC) | — | W34 | — | 0.5 | T4-C3-22 | — | — | — |
| 19 | Evap vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 20 | Secondary heated O2 sensor (SHO2S) | — | W44 | — | 0.5 | T4-C2-5 | — | — | — |
| 21 | Secondary O2 heater control (SO2SHTC) | — | W36 | — | 0.5 | T4-C3-9 | — | — | — |
| 22 | Brake switch (BKSW) | — | W54 | — | 0.5 | T4-C2-34 | — | — | — |
| 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 | — | — | W15 | — | 0.5 | T4-C2-33 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | T4-C2-21 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-A-23 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E-5 | — | — | — |
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 | T4-C1-31 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-A-21 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-E-6 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | T4-C2-9 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W10 | — | 0.85 | T4-C1-14 | — | — | — |
| 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 | T4-C1-13 | — | — | — |
T4-C1
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coil 3 | — | W25 | — | 0.5 | OEM-A-14 | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | PWM 3 | — | W33 | — | 0.5 | OEM-E-17 | — | — | — |
| 4 | PWM 2 | — | W32 | — | 0.5 | OEM-E-12 | — | — | — |
| 5 | PWM 1 | — | W31 | — | 0.5 | OEM-E-8 | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Injector 1 | — | W27 | — | 0.5 | OEM-B-5 | — | — | — |
| 10 | Coil 1 | — | W23 | — | 0.5 | OEM-A-16 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Power Ground 1 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Injector 2 | — | W28 | — | 0.5 | OEM-B-4 | — | — | — |
| 18 | Coil 2 | — | W24 | — | 0.5 | OEM-A-15 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
| 25 | Injector 4 | — | W30 | — | 0.5 | OEM-B-2 | — | — | — |
| 26 | Coil 4 | — | W26 | — | 0.5 | OEM-A-13 | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | Ignition 12v In | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — |
| 34 | Injector 3 | — | W29 | — | 0.5 | OEM-B-3 | — | — | — |
T4-C2
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W43 | — | 0.5 | OEM-A-29 | — | — | — |
| 2 | Wheel 1 | — | W22 | — | 0.5 | OEM-A-6 | — | — | — |
| 3 | Analogue 10 | — | — | — | — | — | — | — | — |
| 4 | Digital 1 | — | W50 | — | 0.5 | OEM-A-18 | — | — | — |
| 5 | Analogue 3 | — | W44 | — | 0.5 | OEM-E-20 | — | — | — |
| 6 | Analogue 4 | — | W47 | — | 0.5 | OEM-B-13 | — | — | — |
| 7 | Thermistor 1 | — | W45 | — | 0.5 | OEM-B-8 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | 5v Output | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 10 | Analogue 1 | — | W42 | — | 0.5 | OEM-A-30 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | Crank | — | W20 | — | 0.5 | OEM-A-7 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | W51 | — | 0.5 | OEM-B-10 | — | — | — |
| 15 | Digital 5 | — | W52 | — | 0.5 | OEM-B-11 | — | — | — |
| 16 | Analogue 11 | — | — | — | — | — | — | — | — |
| 17 | Thermistor 3 | — | — | — | — | — | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — |
| 19 | Analogue 6 | — | W48 | — | 0.5 | OEM-E-14 | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Sensor Ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W21 | — | 0.5 | OEM-A-19 | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | 5v Output | — | W16 | — | 0.5 | OEM-A-20 | — | — | — |
| 25 | Thermistor 2 | — | W46 | — | 0.5 | OEM-B-17 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | W54 | — | 0.5 | OEM-E-22 | — | — | — |
T4-C3
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | — | — | — | — | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | — | — | — | — | — | — | — | — | — |
| 4 | — | — | — | — | — | — | — | — | — |
| 5 | — | — | — | — | — | — | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | Lambda 1 Pump Current | — | W40 | — | 0.5 | OEM-A-31 | — | — | — |
| 8 | Lambda 1 VGND | — | — | — | — | — | — | — | — |
| 9 | Lambda 1 Heater Negative | — | W36 | — | 0.5 | OEM-E-21 | — | — | — |
| 10 | PWM 8 | — | W39 | — | 0.5 | OEM-B-6 | — | — | — |
| 11 | Lambda 1 Trim Resistor | — | — | — | — | — | — | — | — |
| 12 | Lambda 1 Nernst Voltage | — | W41 | — | 0.5 | OEM-A-28 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Analogue 7 | — | W49 | — | 0.5 | OEM-E-15 | — | — | — |
| 18 | Analogue 8 | — | W53 | — | 0.5 | OEM-E-16 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W34 | — | 0.5 | OEM-E-18 | — | — | — |
| 23 | PWM 5 | — | W35 | — | 0.5 | OEM-E-9 | — | — | — |
| 24 | PWM 6 | — | W37 | — | 0.5 | OEM-A-10 | — | — | — |
| 25 | PWM 7 | — | W38 | — | 0.5 | OEM-A-12 | — | — | — |
| 26 | Permanent 12v | — | — | — | — | — | — | — | — |
| 27 | Permanent 12v | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — |
| 30 | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — |
| 34 | — | — | — | — | — | — | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Knock sensor (KS) | knock_in | — | — | — | single_source | |
| OEM-A-10 | A/F sensor heater control (AFSHTC) | low_side_out | T4-C3-24 | PWM 6 | low_side_out | single_source | |
| OEM-A-12 | Idle air control valve (IACV) | low_side_out | T4-C3-25 | PWM 7 | low_side_out | single_source | |
| OEM-A-13 | Ignition coil 4 (IGPLS4) | ignition_out | T4-C1-26 | Coil 4 | ignition_out | single_source | |
| OEM-A-14 | Ignition coil 3 (IGPLS3) | ignition_out | T4-C1-1 | Coil 3 | ignition_out | single_source | |
| OEM-A-15 | Ignition coil 2 (IGPLS2) | ignition_out | T4-C1-18 | Coil 2 | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 (IGPLS1) | ignition_out | T4-C1-10 | Coil 1 | ignition_out | single_source | |
| OEM-A-18 | Neutral position switch (NC) | digital_in | T4-C2-4 | Digital 1 | digital_in | single_source | |
| OEM-A-19 | Camshaft position A (CMP A) | trigger_in | T4-C2-22 | Cam 1 | trigger_in | single_source | |
| OEM-A-2 | Ignition power 2 (IGP2) | power_in | T4-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-A-20 | Sensor 5V supply 2 (VCC2) | vref | T4-C2-24 | 5v Output | vref | single_source | |
| OEM-A-21 | Sensor 5V supply 1 (VCC1) | vref | T4-C2-9 | 5v Output | vref | single_source | |
| OEM-A-23 | Sensor ground 2 (SG2) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A-24 | Sensor ground 1 (SG1) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-A-28 | A/F sensor - (AFS-, wideband Vs) | wb_vs | T4-C3-12 | Lambda 1 Nernst Voltage | wb_vs | single_source | |
| OEM-A-29 | Throttle position sensor (TPS) | analog_in | T4-C2-1 | Analogue 2 | analog_in | single_source | |
| OEM-A-3 | Ignition power 1 (IGP1) | power_in | T4-C1-31 | Ignition 12v In | power_in | single_source | |
| OEM-A-30 | Manifold absolute pressure (MAP) | analog_in | T4-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor + (AFS+, wideband Ip) | wb_ip | T4-C3-7 | Lambda 1 Pump Current | wb_ip | single_source | |
| OEM-A-4 | Power ground 2 (PG2) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-5 | Power ground 1 (PG1) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-6 | Camshaft position B (CMP B) | trigger_in | T4-C2-2 | Wheel 1 | digital_in | single_source | |
| OEM-A-7 | Crank position sensor (CKP) | trigger_in | T4-C2-12 | Crank | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 (LG2) | ground | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-A-9 | Logic ground 1 (LG1) | ground | T4-C1-13 + T4-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 | T4-C2-14 | Digital 4 | digital_in | single_source | |
| OEM-B-11 | VTEC oil pressure switch (VTPSW) | digital_in | T4-C2-15 | Digital 5 | digital_in | single_source | |
| OEM-B-13 | Alternator FR signal (ALTF) | analog_in | T4-C2-6 | Analogue 4 | analog_in | single_source | |
| OEM-B-17 | Intake air temp sensor (IAT) | temp_in | T4-C2-25 | 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 | T4-C1-25 | Injector 4 | 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 | T4-C1-34 | Injector 3 | injector_out | single_source | |
| OEM-B-4 | Injector 2 (INJ2) | injector_out | T4-C1-17 | Injector 2 | injector_out | single_source | |
| OEM-B-5 | Injector 1 (INJ1) | injector_out | T4-C1-9 | Injector 1 | injector_out | single_source | |
| OEM-B-6 | VTEC solenoid (VTS) | low_side_out | T4-C3-10 | PWM 8 | low_side_out | single_source | |
| OEM-B-8 | Coolant temp sensor (ECT) | temp_in | T4-C2-7 | 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 | T4-C1-4 | 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 | T4-C2-19 | Analogue 6 | analog_in | single_source | |
| OEM-E-15 | Electrical load detector (ELD) | analog_in | T4-C3-17 | Analogue 7 | analog_in | single_source | |
| OEM-E-16 | Power steering pressure switch (PSPSW) | digital_in | T4-C3-18 | Analogue 8 | analog_in | single_source | |
| OEM-E-17 | Immobilizer fuel pump relay (IMO FPR) | low_side_out | T4-C1-3 | PWM 3 | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay (ACC) | low_side_out | T4-C3-22 | 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 | T4-C2-5 | Analogue 3 | analog_in | single_source | |
| OEM-E-21 | Secondary O2 heater control (SO2SHTC) | low_side_out | T4-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-E-22 | Brake switch (BKSW) | digital_in | T4-C2-34 | Analogue 9 | analog_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 | T4-C1-13 + T4-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E-5 | Sensor ground 3 (SG3) | sensor_ground | T4-C2-21 + T4-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-E-6 | Sensor 5V supply 3 (VCC3) | vref | T4-C2-9 | 5v Output | vref | single_source | |
| OEM-E-8 | Main relay control (MRLY) | low_side_out | T4-C1-5 | PWM 1 | low_side_out | single_source | |
| OEM-E-9 | A/F sensor heater relay control (AFSHTCR) | low_side_out | T4-C3-23 | PWM 5 | 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 | T4-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 | T4-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W10 | SP-GND-1 | T4-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 | T4-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W15 | SP-0V-1 | T4-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W16 | OEM-A-20 | T4-C2-24 | 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 | T4-C2-9 | 0.5 | no route | 5v Output | — | |
| W20 | OEM-A-7 | T4-C2-12 | 0.5 | no route | Crank position sensor (CKP) | — | |
| W21 | OEM-A-19 | T4-C2-22 | 0.5 | no route | Camshaft position A (CMP A) | — | |
| W22 | OEM-A-6 | T4-C2-2 | 0.5 | no route | Camshaft position B (CMP B) | — | |
| W23 | OEM-A-16 | T4-C1-10 | 0.5 | no route | Ignition coil 1 (IGPLS1) | — | |
| W24 | OEM-A-15 | T4-C1-18 | 0.5 | no route | Ignition coil 2 (IGPLS2) | — | |
| W25 | OEM-A-14 | T4-C1-1 | 0.5 | no route | Ignition coil 3 (IGPLS3) | — | |
| W26 | OEM-A-13 | T4-C1-26 | 0.5 | no route | Ignition coil 4 (IGPLS4) | — | |
| W27 | OEM-B-5 | T4-C1-9 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W28 | OEM-B-4 | T4-C1-17 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W29 | OEM-B-3 | T4-C1-34 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W30 | OEM-B-2 | T4-C1-25 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W31 | OEM-E-8 | T4-C1-5 | 0.5 | no route | Main relay control (MRLY) | — | |
| W32 | OEM-E-12 | T4-C1-4 | 0.5 | no route | Radiator fan control (FANC) | — | |
| W33 | OEM-E-17 | T4-C1-3 | 0.5 | no route | Immobilizer fuel pump relay (IMO FPR) | — | |
| W34 | OEM-E-18 | T4-C3-22 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W35 | OEM-E-9 | T4-C3-23 | 0.5 | no route | A/F sensor heater relay control (AFSHTCR) | — | |
| W36 | OEM-E-21 | T4-C3-9 | 0.5 | no route | Secondary O2 heater control (SO2SHTC) | — | |
| W37 | OEM-A-10 | T4-C3-24 | 0.5 | no route | A/F sensor heater control (AFSHTC) | — | |
| W38 | OEM-A-12 | T4-C3-25 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W39 | OEM-B-6 | T4-C3-10 | 0.5 | no route | VTEC solenoid (VTS) | — | |
| W40 | OEM-A-31 | T4-C3-7 | 0.5 | no route | A/F sensor + (AFS+, wideband Ip) | — | |
| W41 | OEM-A-28 | T4-C3-12 | 0.5 | no route | A/F sensor - (AFS-, wideband Vs) | — | |
| W42 | OEM-A-30 | T4-C2-10 | 0.5 | no route | Manifold absolute pressure (MAP) | — | |
| W43 | OEM-A-29 | T4-C2-1 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W44 | OEM-E-20 | T4-C2-5 | 0.5 | no route | Secondary heated O2 sensor (SHO2S) | — | |
| W45 | OEM-B-8 | T4-C2-7 | 0.5 | no route | Coolant temp sensor (ECT) | — | |
| W46 | OEM-B-17 | T4-C2-25 | 0.5 | no route | Intake air temp sensor (IAT) | — | |
| W47 | OEM-B-13 | T4-C2-6 | 0.5 | no route | Alternator FR signal (ALTF) | — | |
| W48 | OEM-E-14 | T4-C2-19 | 0.5 | no route | Fuel tank pressure sensor (FTP) | — | |
| W49 | OEM-E-15 | T4-C3-17 | 0.5 | no route | Electrical load detector (ELD) | — | |
| W50 | OEM-A-18 | T4-C2-4 | 0.5 | no route | Neutral position switch (NC) | — | |
| W51 | OEM-B-10 | T4-C2-14 | 0.5 | no route | Alternator L signal (ALTL) | — | |
| W52 | OEM-B-11 | T4-C2-15 | 0.5 | no route | VTEC oil pressure switch (VTPSW) | — | |
| W53 | OEM-E-16 | T4-C3-18 | 0.5 | no route | Power steering pressure switch (PSPSW) | — | |
| W54 | OEM-E-22 | T4-C2-34 | 0.5 | no route | Brake switch (BKSW) | — |
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 | 3.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 42.000 | ea |
| terminal | 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 48.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (17)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | T4-C3-26 | T4-C3-26 "Permanent 12v" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | T4-C3-27 | T4-C3-27 "Permanent 12v" is required but not wired. |
| 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 | DATASET_GAP | T4 C1 | 20 of 34 cavities on T4 C1 have no pin data (2,6,7,8,11,12,15,16,19,20,21,22,23,24,27,28,29,30,32,33). Anything there is invisible to these checks. |
| warn | DATASET_GAP | T4 C2 | 11 of 34 cavities on T4 C2 have no pin data (8,11,13,18,20,23,27,29,30,31,32). Anything there is invisible to these checks. |
| warn | DATASET_GAP | T4 C3 | 20 of 34 cavities on T4 C3 have no pin data (1,2,3,4,5,6,13,14,15,16,19,20,21,28,29,30,31,32,33,34). Anything there is invisible to these checks. |
| warn | LOAD_UNKNOWN | T4-C1-17 | T4-C1-17 "Injector 2" drives OEM-B-4 Injector 2 (INJ2) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T4-C1-25 | T4-C1-25 "Injector 4" drives OEM-B-2 Injector 4 (INJ4) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T4-C1-34 | T4-C1-34 "Injector 3" drives OEM-B-3 Injector 3 (INJ3) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | T4-C1-9 | T4-C1-9 "Injector 1" drives OEM-B-5 Injector 1 (INJ1) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-A-6 ↔ T4-C2-2 | OEM-A-6 "Camshaft position B (CMP B)" [trigger_in] is wired to T4-C2-2 "Wheel 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-E-16 ↔ T4-C3-18 | OEM-E-16 "Power steering pressure switch (PSPSW)" [digital_in] is wired to T4-C3-18 "Analogue 8" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-E-22 ↔ T4-C2-34 | OEM-E-22 "Brake switch (BKSW)" [digital_in] is wired to T4-C2-34 "Analogue 9" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | SUPPLY_GROUP | OEM-A-21 + OEM-E-6 + SP-5V1-1 + T4-C2-9 | Supplies meant to stay independent share one net: 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 | 15 optional OEM pins are not mapped: OEM-A-1 Knock sensor (KS); OEM-B-1 VTC oil control solenoid (+); OEM-B-18 Alternator control (ALTC); OEM-B-21 Evap canister purge valve (PCS); OEM-E-10 Ignition switch signal (IG1); OEM-E-13 Multiplex communication (SEFMJ); OEM-E-19 Evap vent shut valve (VSV); 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 2026-10-09. Review every wire against both manuals before building. Open items: - T4-C3 26: Permanent 12v: required by DTAFast T4 but no stock pin feeds it; wire by hand - T4-C3 27: Permanent 12v: required by DTAFast T4 but no stock pin feeds it; wire by hand Not wired: - OEM-A 1: Knock sensor (KS): no free knock input on DTAFast T4 - 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 T4 has no dedicated key-on input - OEM-B 1: VTC oil control solenoid (+): no free low_side/ls_hs/injector/hbridge on DTAFast T4 - OEM-B 18: Alternator control (ALTC): no free low_side/ls_hs/injector/hbridge on DTAFast T4 - OEM-B 21: Evap canister purge valve (PCS): no free low_side/ls_hs/injector/hbridge on DTAFast T4 - OEM-E 19: Evap vent shut valve (VSV): no free low_side/ls_hs/injector/hbridge on DTAFast T4 - OEM-E 3: Reverse lockout solenoid (RVS, Type-S): no free low_side/ls_hs/injector/hbridge on DTAFast T4 - OEM-E 31: Malfunction indicator lamp (MIL): no free low_side/ls_hs/injector/hbridge on DTAFast T4 - OEM-E 25: Engine speed pulse / tacho (NEP): no free tacho/frequency_out/low_side/ls_hs on DTAFast T4 - OEM-E 26: Vehicle speed output (VSSOUT): no free frequency_out/tacho/low_side/ls_hs on DTAFast T4 - OEM-E 13: Multiplex communication (SEFMJ): no free k_line on DTAFast T4 - OEM-E 23: K-line (diagnostic): no free k_line on DTAFast T4 - 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 T4 ECU wiring diagram | https://cdn.shopify.com/s/files/1/0848/7508/4108/files/T4_Wiring_Diagram.pdf?v=1789413067 | — | — | — |
| 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 |