AP2 2006–09 (F22C1, DBW) → Link G4X AtomX 111-4000 (auto)
AP2 2006–09 (F22C1, DBW) — Link — G4X AtomX
⚠ 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 | 4: read the Findings page before cutting any wire |
| Size of the job | 47 wires · 11 connectors · 5 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| 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 | G4XATOMX-A-A5 | 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 | G4XATOMX-A-A25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | G4XATOMX-A-A34 | 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 | G4XATOMX-A-A24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | TB-J-VCC | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-5V1-1 | G4XATOMX-A-A32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-7 | G4XATOMX-A-A8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-6 | G4XATOMX-A-A9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-1 | G4XATOMX-A-A6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-16 | G4XATOMX-A-A13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-15 | G4XATOMX-A-A12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-14 | G4XATOMX-A-A11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-13 | G4XATOMX-A-A10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-5 | G4XATOMX-A-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-4 | G4XATOMX-A-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-3 | G4XATOMX-A-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-2 | G4XATOMX-A-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E-17 | G4XATOMX-A-A21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E-7 | G4XATOMX-A-A20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-6 | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | RLY1-R-COIL- | G4XATOMX-A-A19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-30 | G4XATOMX-A-A17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-25 | G4XATOMX-A-A22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-26 | G4XATOMX-A-A33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B-8 | G4XATOMX-A-A15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-D-15 | G4XATOMX-A-A18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E-1 | G4XATOMX-A-A16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-18 | G4XATOMX-A-A30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-11 | G4XATOMX-A-A31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E-11 | G4XATOMX-A-A28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E-24 | G4XATOMX-A-A29 | 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 | G4XATOMX-A-A32 | G4XATOMX-A-A24 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | G4XATOMX-A-A5 | G4XATOMX-A-A24 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | G4XATOMX-A-A5 | G4XATOMX-A-A25 | open (OL) | +12 V supply must not touch power ground | |
| 4 | G4XATOMX-A-A24 | RLY1-R-OUT | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | G4XATOMX-A-A25 | G4XATOMX-A-A32 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | G4XATOMX-A-A25 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 7 | G4XATOMX-A-A32 | RLY1-R-OUT | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 8 | G4XATOMX-A-A5 | G4XATOMX-A-A32 | 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
G4XATOMX-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | Injector 4 | — | W31 | — | 0.5 | OEM-B-2 | — | — | — |
| A10 | Ignition 4 | — | W27 | — | 0.5 | OEM-A-13 | — | — | — |
| A11 | Ignition 3 | — | W26 | — | 0.5 | OEM-A-14 | — | — | — |
| A12 | Ignition 2 | — | W25 | — | 0.5 | OEM-A-15 | — | — | — |
| A13 | Ignition 1 | — | W24 | — | 0.5 | OEM-A-16 | — | — | — |
| A15 | Analog Temp 1 | — | W41 | — | 0.5 | OEM-B-8 | — | — | — |
| A16 | Analog Temp 2 | — | W43 | — | 0.5 | OEM-E-1 | — | — | — |
| A17 | Analog Volt 1 | — | W38 | — | 0.5 | OEM-A-30 | — | — | — |
| A18 | Aux 4 | — | W42 | — | 0.5 | OEM-D-15 | — | — | — |
| A19 | Aux 3 | — | W37 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| A2 | Injector 3 | — | W30 | — | 0.5 | OEM-B-3 | — | — | — |
| A20 | Aux 2 | — | W33 | — | 0.5 | OEM-E-7 | — | — | — |
| A21 | Aux 1 | — | W32 | — | 0.5 | OEM-E-17 | — | — | — |
| A22 | Analog Volt 2 | — | W39 | — | 0.5 | OEM-A-25 | — | — | — |
| A24 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| A25 | System Ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| A28 | CAN H | — | W46 | — | 0.5 | OEM-E-11 | — | — | — |
| A29 | CAN L | — | W47 | — | 0.5 | OEM-E-24 | — | — | — |
| A3 | Injector 2 | — | W29 | — | 0.5 | OEM-B-4 | — | — | — |
| A30 | Digital Input 1 | — | W44 | — | 0.5 | OEM-A-18 | — | — | — |
| A31 | Digital Input 2 | — | W45 | — | 0.5 | OEM-B-11 | — | — | — |
| A32 | +5V Out | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| A33 | Analog Volt 3 | — | W40 | — | 0.5 | OEM-A-26 | — | — | — |
| A34 | System Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| A4 | Injector 1 | — | W28 | — | 0.5 | OEM-B-5 | — | — | — |
| A5 | +14V ECU Power | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| A6 | Knock 1 | — | W23 | — | 0.5 | OEM-A-1 | — | — | — |
| A7 | Shield Ground | — | — | — | — | — | — | — | — |
| A8 | Trigger 1 | — | W21 | — | 0.5 | OEM-A-7 | — | — | — |
| A9 | Trigger 2 | — | W22 | — | 0.5 | OEM-A-6 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Knock sensor | — | W23 | — | 0.5 | G4XATOMX-A-A6 | — | — | — |
| 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) | — | W22 | — | 0.5 | G4XATOMX-A-A9 | — | — | — |
| 7 | Crank position sensor (T1) | — | W21 | — | 0.5 | G4XATOMX-A-A8 | — | — | — |
| 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 | — | — | — | — | — | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 | — | W27 | — | 0.5 | G4XATOMX-A-A10 | — | — | — |
| 14 | Ignition coil 3 | — | W26 | — | 0.5 | G4XATOMX-A-A11 | — | — | — |
| 15 | Ignition coil 2 | — | W25 | — | 0.5 | G4XATOMX-A-A12 | — | — | — |
| 16 | Ignition coil 1 | — | W24 | — | 0.5 | G4XATOMX-A-A13 | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor | — | W44 | — | 0.5 | G4XATOMX-A-A30 | — | — | — |
| 19 | Unused cavity | — | — | — | — | — | — | — | — |
| 20 | Sensor voltage 2 | — | W16 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor voltage 1 | — | W17 | — | 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 | — | W39 | — | 0.5 | G4XATOMX-A-A22 | — | — | — |
| 26 | Accelerator pedal position A | — | W40 | — | 0.5 | G4XATOMX-A-A33 | — | — | — |
| 27 | Unused cavity | — | — | — | — | — | — | — | — |
| 28 | A/F sensor signal − | — | — | — | — | — | — | — | — |
| 29 | Unused cavity | — | — | — | — | — | — | — | — |
| 30 | MAP sensor | — | W38 | — | 0.5 | G4XATOMX-A-A17 | — | — | — |
| 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 | — | W31 | — | 0.5 | G4XATOMX-A-A1 | — | — | — |
| 3 | Injector 3 | — | W30 | — | 0.5 | G4XATOMX-A-A2 | — | — | — |
| 4 | Injector 2 | — | W29 | — | 0.5 | G4XATOMX-A-A3 | — | — | — |
| 5 | Injector 1 | — | W28 | — | 0.5 | G4XATOMX-A-A4 | — | — | — |
| 6 | VTEC solenoid | — | W34 | — | 0.5 | RLY1-R-OUT | — | — | — |
| 7 | Unused cavity | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor | — | W41 | — | 0.5 | G4XATOMX-A-A15 | — | — | — |
| 9 | Unused cavity | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal | — | — | — | — | — | — | — | — |
| 11 | VTEC oil pressure switch | — | W45 | — | 0.5 | G4XATOMX-A-A31 | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal | — | — | — | — | — | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Engine mount control solenoid | — | — | — | — | — | — | — | — |
| 16 | Unused cavity | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor | — | — | — | — | — | — | — | — |
| 18 | Alternator control | — | — | — | — | — | — | — | — |
| 19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | — | — | — | — |
| 20 | Throttle actuator command to throttle control module (SEDF) | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Unused cavity | — | — | — | — | — | — | — | — |
| 4 | Cruise main switch | — | — | — | — | — | — | — | — |
| 5 | Unused cavity | — | — | — | — | — | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Cruise resume switch | — | — | — | — | — | — | — | — |
| 8 | Brake pedal position switch | — | — | — | — | — | — | — | — |
| 9 | Cruise clutch signal | — | — | — | — | — | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Unused cavity | — | — | — | — | — | — | — | — |
| 14 | Unused cavity | — | — | — | — | — | — | — | — |
| 15 | Throttle actuator relay | — | W42 | — | 0.5 | G4XATOMX-A-A18 | — | — | — |
| 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 | — | W43 | — | 0.5 | G4XATOMX-A-A16 | — | — | — |
| 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 | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Main relay control | — | W33 | — | 0.5 | G4XATOMX-A-A20 | — | — | — |
| 8 | A/F sensor heater relay | — | — | — | — | — | — | — | — |
| 9 | Ignition signal | — | — | — | — | — | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | CAN H | — | W46 | — | 0.5 | G4XATOMX-A-A28 | — | — | — |
| 12 | Radiator fan control | — | — | — | — | — | — | — | — |
| 13 | Multiplex communication | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor | — | — | — | — | — | — | — | — |
| 15 | Electrical load detector | — | — | — | — | — | — | — | — |
| 16 | Power steering load detector | — | — | — | — | — | — | — | — |
| 17 | Fuel pump relay | — | W32 | — | 0.5 | G4XATOMX-A-A21 | — | — | — |
| 18 | A/C clutch relay | — | — | — | — | — | — | — | — |
| 19 | Evap canister vent shut valve | — | — | — | — | — | — | — | — |
| 20 | Secondary O2 sensor | — | — | — | — | — | — | — | — |
| 21 | Secondary O2 heater | — | — | — | — | — | — | — | — |
| 22 | Brake pedal switch | — | — | — | — | — | — | — | — |
| 23 | Unused cavity | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | W47 | — | 0.5 | G4XATOMX-A-A29 | — | — | — |
| 25 | Engine speed pulse (tacho) | — | — | — | — | — | — | — | — |
| 26 | Vehicle speed output | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code | — | — | — | — | — | — | — | — |
| 28 | A/C switch signal | — | — | — | — | — | — | — | — |
| 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) | — | W36 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W37 | — | 0.5 | G4XATOMX-A-A19 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W35 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W34 | — | 0.5 | OEM-B-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W14 | — | 0.5 | TB-J-GND | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-A-23 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | G4XATOMX-A-A24 | — | — | — |
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 | G4XATOMX-A-A5 | — | — | — |
| 1 | — | — | W35 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W36 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
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-5 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | TB-J-VCC | — | — | — |
| 1 | — | — | W20 | — | 0.5 | G4XATOMX-A-A32 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-A-4 | — | — | — |
| 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 | G4XATOMX-A-A25 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | G4XATOMX-A-A34 | — | — | — |
TB-J
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| TPS1 | Throttle position 1 | — | — | — | — | — | — | — | — |
| VCC | Throttle sensor 5V supply | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| TPS2 | Throttle position 2 | — | — | — | — | — | — | — | — |
| GND | Throttle sensor ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| M- | Throttle motor − | — | — | — | — | — | — | — | — |
| M+ | Throttle motor + | — | — | — | — | — | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Knock sensor | knock_in | G4XATOMX-A-A6 | Knock 1 | knock_in | single_source | |
| OEM-A-10 | A/F sensor heater | 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 | G4XATOMX-A-A10 | Ignition 4 | ignition_out | single_source | |
| OEM-A-14 | Ignition coil 3 | ignition_out | G4XATOMX-A-A11 | Ignition 3 | ignition_out | single_source | |
| OEM-A-15 | Ignition coil 2 | ignition_out | G4XATOMX-A-A12 | Ignition 2 | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 | ignition_out | G4XATOMX-A-A13 | Ignition 1 | ignition_out | single_source | |
| OEM-A-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-18 | Vehicle speed sensor | digital_in | G4XATOMX-A-A30 | Digital Input 1 | digital_in | single_source | |
| OEM-A-19 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-2 | Ignition power 2 | power_in | G4XATOMX-A-A5 + RLY1-R-COIL+ + RLY1-R-IN | +14V ECU Power + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | single_source | |
| OEM-A-20 | Sensor voltage 2 | vref | G4XATOMX-A-A32 + TB-J-VCC | +5V Out + Throttle sensor 5V supply | power_in + vref | corroborated | |
| OEM-A-21 | Sensor voltage 1 | vref | G4XATOMX-A-A32 + TB-J-VCC | +5V Out + Throttle sensor 5V supply | power_in + vref | single_source | |
| OEM-A-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-23 | Sensor ground 2 | sensor_ground | G4XATOMX-A-A24 + TB-J-GND | Sensor Ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-A-24 | Sensor ground 1 | sensor_ground | G4XATOMX-A-A24 + TB-J-GND | Sensor Ground + Throttle sensor ground | sensor_ground | single_source | |
| OEM-A-25 | Accelerator pedal position B | analog_in | G4XATOMX-A-A22 | Analog Volt 2 | analog_in | corroborated | |
| OEM-A-26 | Accelerator pedal position A | analog_in | G4XATOMX-A-A33 | Analog Volt 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 | G4XATOMX-A-A5 + RLY1-R-COIL+ + RLY1-R-IN | +14V ECU Power + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | single_source | |
| OEM-A-30 | MAP sensor | analog_in | G4XATOMX-A-A17 | Analog Volt 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor signal + | — | — | — | — | single_source | |
| OEM-A-4 | Power ground 2 | ground | G4XATOMX-A-A25 + G4XATOMX-A-A34 | System Ground + System Ground | ground | single_source | |
| OEM-A-5 | Power ground 1 | ground | G4XATOMX-A-A25 + G4XATOMX-A-A34 | System Ground + System Ground | ground | single_source | |
| OEM-A-6 | Cam position sensor (T2) | trigger_in | G4XATOMX-A-A9 | Trigger 2 | trigger_in | single_source | |
| OEM-A-7 | Crank position sensor (T1) | trigger_in | G4XATOMX-A-A8 | Trigger 1 | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 | ground | G4XATOMX-A-A25 + G4XATOMX-A-A34 | System Ground + System Ground | ground | single_source | |
| OEM-A-9 | Logic ground 1 | ground | G4XATOMX-A-A25 + G4XATOMX-A-A34 | System Ground + System Ground | 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 | G4XATOMX-A-A31 | Digital Input 2 | digital_in | single_source | |
| OEM-B-12 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-13 | Alternator FR signal | analog_in | — | — | — | single_source | |
| OEM-B-14 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-15 | Engine mount control solenoid | low_side_out | — | — | — | single_source | |
| OEM-B-16 | Unused cavity | — | — | — | — | unverified | |
| OEM-B-17 | Intake air temp sensor | temp_in | — | — | — | single_source | |
| OEM-B-18 | Alternator control | low_side_out | — | — | — | single_source | |
| OEM-B-19 | Throttle actuator command to throttle control module (SEFD) | — | — | — | — | conflict | |
| OEM-B-2 | Injector 4 | injector_out | G4XATOMX-A-A1 | 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 | — | — | — | 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 | G4XATOMX-A-A2 | Injector 3 | injector_out | single_source | |
| OEM-B-4 | Injector 2 | injector_out | G4XATOMX-A-A3 | Injector 2 | injector_out | single_source | |
| OEM-B-5 | Injector 1 | injector_out | G4XATOMX-A-A4 | 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 | G4XATOMX-A-A15 | Analog Temp 1 | temp_in | single_source | |
| OEM-B-9 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-1 | Cruise set switch | 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 | G4XATOMX-A-A18 | Aux 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 | — | — | — | single_source | |
| OEM-D-5 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-D-7 | Cruise resume switch | digital_in | — | — | — | single_source | |
| OEM-D-8 | Brake pedal position switch | digital_in | — | — | — | single_source | |
| OEM-D-9 | Cruise clutch signal | digital_in | — | — | — | single_source | |
| OEM-E-1 | Coolant temp sensor 2 | temp_in | G4XATOMX-A-A16 | Analog Temp 2 | temp_in | single_source | |
| OEM-E-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-11 | CAN H | can_h | G4XATOMX-A-A28 | CAN H | can_h | single_source | |
| OEM-E-12 | Radiator fan control | low_side_out | — | — | — | single_source | |
| OEM-E-13 | Multiplex communication | serial | — | — | — | single_source | |
| OEM-E-14 | Fuel tank pressure sensor | analog_in | — | — | — | single_source | |
| OEM-E-15 | Electrical load detector | analog_in | — | — | — | single_source | |
| OEM-E-16 | Power steering load detector | analog_in | — | — | — | corroborated | |
| OEM-E-17 | Fuel pump relay | low_side_out | G4XATOMX-A-A21 | Aux 1 | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay | low_side_out | — | — | — | single_source | |
| OEM-E-19 | Evap canister vent shut valve | low_side_out | — | — | — | single_source | |
| OEM-E-2 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-20 | Secondary O2 sensor | lambda_nb_in | — | — | — | single_source | |
| OEM-E-21 | Secondary O2 heater | low_side_out | — | — | — | single_source | |
| OEM-E-22 | Brake pedal switch | digital_in | — | — | — | single_source | |
| OEM-E-23 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-24 | CAN L | can_l | G4XATOMX-A-A29 | CAN L | can_l | single_source | |
| OEM-E-25 | Engine speed pulse (tacho) | tacho_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 | — | — | — | single_source | |
| OEM-E-29 | Service check signal | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 | ground | G4XATOMX-A-A25 + G4XATOMX-A-A34 | System Ground + System Ground | 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 | G4XATOMX-A-A24 + TB-J-GND | Sensor Ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-E-5 | Sensor voltage 3 | vref | G4XATOMX-A-A32 + TB-J-VCC | +5V Out + Throttle sensor 5V supply | power_in + vref | corroborated | |
| OEM-E-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-7 | Main relay control | low_side_out | G4XATOMX-A-A20 | Aux 2 | low_side_out | single_source | |
| OEM-E-8 | A/F sensor heater relay | 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 | G4XATOMX-A-A5 | 0.85 | no route | +14V ECU Power | — | |
| 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 | G4XATOMX-A-A25 | 0.85 | no route | System Ground | — | |
| W10 | SP-GND-1 | G4XATOMX-A-A34 | 0.85 | no route | System Ground | — | |
| 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 | G4XATOMX-A-A24 | 0.5 | no route | Sensor Ground | — | |
| W16 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor voltage 2 | — | |
| W17 | OEM-A-21 | SP-5V1-1 | 0.5 | no route | Sensor voltage 1 | — | |
| W18 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor voltage 3 | — | |
| W19 | TB-J-VCC | SP-5V1-1 | 0.5 | no route | Throttle sensor 5V supply | — | |
| W20 | SP-5V1-1 | G4XATOMX-A-A32 | 0.5 | no route | +5V Out | — | |
| W21 | OEM-A-7 | G4XATOMX-A-A8 | 0.5 | no route | Crank position sensor (T1) | — | |
| W22 | OEM-A-6 | G4XATOMX-A-A9 | 0.5 | no route | Cam position sensor (T2) | — | |
| W23 | OEM-A-1 | G4XATOMX-A-A6 | 0.5 | no route | Knock sensor | — | |
| W24 | OEM-A-16 | G4XATOMX-A-A13 | 0.5 | no route | Ignition coil 1 | — | |
| W25 | OEM-A-15 | G4XATOMX-A-A12 | 0.5 | no route | Ignition coil 2 | — | |
| W26 | OEM-A-14 | G4XATOMX-A-A11 | 0.5 | no route | Ignition coil 3 | — | |
| W27 | OEM-A-13 | G4XATOMX-A-A10 | 0.5 | no route | Ignition coil 4 | — | |
| W28 | OEM-B-5 | G4XATOMX-A-A4 | 0.5 | no route | Injector 1 | — | |
| W29 | OEM-B-4 | G4XATOMX-A-A3 | 0.5 | no route | Injector 2 | — | |
| W30 | OEM-B-3 | G4XATOMX-A-A2 | 0.5 | no route | Injector 3 | — | |
| W31 | OEM-B-2 | G4XATOMX-A-A1 | 0.5 | no route | Injector 4 | — | |
| W32 | OEM-E-17 | G4XATOMX-A-A21 | 0.5 | no route | Fuel pump relay | — | |
| W33 | OEM-E-7 | G4XATOMX-A-A20 | 0.5 | no route | Main relay control | — | |
| W34 | OEM-B-6 | RLY1-R-OUT | 0.5 | no route | VTEC solenoid | — | |
| W35 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W36 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W37 | RLY1-R-COIL- | G4XATOMX-A-A19 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W38 | OEM-A-30 | G4XATOMX-A-A17 | 0.5 | no route | MAP sensor | — | |
| W39 | OEM-A-25 | G4XATOMX-A-A22 | 0.5 | no route | Accelerator pedal position B | — | |
| W40 | OEM-A-26 | G4XATOMX-A-A33 | 0.5 | no route | Accelerator pedal position A | — | |
| W41 | OEM-B-8 | G4XATOMX-A-A15 | 0.5 | no route | Coolant temp sensor | — | |
| W42 | OEM-D-15 | G4XATOMX-A-A18 | 0.5 | no route | Throttle actuator relay | — | |
| W43 | OEM-E-1 | G4XATOMX-A-A16 | 0.5 | no route | Coolant temp sensor 2 | — | |
| W44 | OEM-A-18 | G4XATOMX-A-A30 | 0.5 | no route | Vehicle speed sensor | — | |
| W45 | OEM-B-11 | G4XATOMX-A-A31 | 0.5 | no route | VTEC oil pressure switch | — | |
| W46 | OEM-E-11 | G4XATOMX-A-A28 | 0.5 | no route | CAN H | — | |
| W47 | OEM-E-24 | G4XATOMX-A-A29 | 0.5 | no route | CAN L | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| 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 |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| dbw_motor | TB | Throttle motor + | — | — | — | — | — |
| dbw_motor | TB | Throttle motor − | — | — | — | — | — |
| dbw_tps | TB | Throttle position 1 | 0_5v | — | — | — | — |
| dbw_tps | TB | Throttle position 2 | 0_5v | — | — | — | — |
Findings
Open (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | TB-J-M+ | TB-J-M+ "Throttle motor +" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | TB-J-M- | TB-J-M- "Throttle motor −" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | TB-J-TPS1 | TB-J-TPS1 "Throttle position 1" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | TB-J-TPS2 | TB-J-TPS2 "Throttle position 2" is required but not wired. |
| warn | DBW_SHARED_5V | G4XATOMX-A-A32 + OEM-A-20 + OEM-A-21 + OEM-E-5 + SP-5V1-1 + TB-J-VCC | 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 (G4XATOMX-A-A32). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. G4X AtomX has 1 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 | G4XATOMX-A-A1 | G4XATOMX-A-A1 "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 | G4XATOMX-A-A18 | G4XATOMX-A-A18 "Aux 4" drives OEM-D-15 Throttle actuator relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G4XATOMX-A-A2 | G4XATOMX-A-A2 "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 | G4XATOMX-A-A20 | G4XATOMX-A-A20 "Aux 2" drives OEM-E-7 Main relay control (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G4XATOMX-A-A21 | G4XATOMX-A-A21 "Aux 1" drives OEM-E-17 Fuel pump relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G4XATOMX-A-A3 | G4XATOMX-A-A3 "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 | G4XATOMX-A-A4 | G4XATOMX-A-A4 "Injector 1" drives OEM-B-5 Injector 1 (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| 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 | SUPPLY_GROUP | G4XATOMX-A-A32 + OEM-A-20 + OEM-A-21 + OEM-E-5 + SP-5V1-1 + TB-J-VCC | 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 | UNMAPPED | OEM | 34 optional OEM pins are not mapped: OEM-A-10 A/F sensor heater; OEM-A-28 A/F sensor signal −; OEM-A-31 A/F sensor signal +; OEM-B-10 Alternator L signal; OEM-B-13 Alternator FR signal; OEM-B-15 Engine mount control solenoid; OEM-B-17 Intake air temp sensor; OEM-B-18 Alternator control; OEM-B-19 Throttle actuator command to throttle control module (SEFD); OEM-B-20 Throttle actuator command to throttle control module (SEDF); OEM-B-21 Evap canister purge valve; OEM-D-1 Cruise set switch; OEM-D-4 Cruise main switch; OEM-D-7 Cruise resume switch; OEM-D-8 Brake pedal position switch; OEM-D-9 Cruise clutch signal; OEM-E-12 Radiator fan control; OEM-E-13 Multiplex communication; OEM-E-14 Fuel tank pressure sensor; OEM-E-15 Electrical load detector; OEM-E-16 Power steering load detector; OEM-E-18 A/C clutch relay; OEM-E-19 Evap canister vent shut valve; OEM-E-20 Secondary O2 sensor; OEM-E-21 Secondary O2 heater; OEM-E-22 Brake pedal switch; OEM-E-25 Engine speed pulse (tacho); OEM-E-26 Vehicle speed output; OEM-E-27 Immobilizer code; OEM-E-28 A/C switch signal; OEM-E-29 Service check signal; OEM-E-30 Write enable signal; OEM-E-8 A/F sensor heater relay; OEM-E-9 Ignition signal |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Fit check: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - Trigger pattern needs a workaround: F22C1 shares the F20C trigger pattern (12-tooth crank + cam); Link documents the S2000X (AP1) but the AP2 is not separately named. Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - TB-J M+: Throttle motor +: needs a paired H-bridge on Link G4X AtomX (H-bridge pairing not in the library: set device_pin.bridge_pair from the ECU manual) - TB-J M-: Throttle motor −: needs a paired H-bridge on Link G4X AtomX (H-bridge pairing not in the library: set device_pin.bridge_pair from the ECU manual) - TB-J TPS1: Throttle position 1: no free analog_0_5 on Link G4X AtomX - TB-J TPS2: Throttle position 2: no free analog_0_5 on Link G4X AtomX 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); Link G4X AtomX has no dedicated key-on input - OEM-E 12: Radiator fan control: no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on Link G4X AtomX - OEM-E 18: A/C clutch relay: no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on Link G4X AtomX - OEM-E 8: A/F sensor heater relay: no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on Link G4X AtomX - OEM-E 21: Secondary O2 heater: no free heater_low_side/low_side/relay_control/ls_hs/injector on Link G4X AtomX - OEM-A 10: A/F sensor heater: no free heater_low_side/low_side/relay_control/ls_hs/injector on Link G4X AtomX - OEM-B 15: Engine mount control solenoid: no free low_side/relay_control/heater_low_side/ls_hs/injector on Link G4X AtomX - OEM-B 18: Alternator control: no free low_side/relay_control/heater_low_side/ls_hs/injector on Link G4X AtomX - OEM-B 21: Evap canister purge valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on Link G4X AtomX - OEM-E 19: Evap canister vent shut valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on Link G4X AtomX - OEM-E 25: Engine speed pulse (tacho): no free tacho/frequency_out/low_side/ls_hs on Link G4X AtomX - OEM-E 26: Vehicle speed output: no free frequency_out/tacho/low_side/ls_hs on Link G4X AtomX - OEM-E 20: Secondary O2 sensor: no free o2_narrowband/analog_0_5 on Link G4X AtomX - OEM-B 17: Intake air temp sensor: no free thermistor/analog_0_5 on Link G4X AtomX - OEM-B 13: Alternator FR signal: no free analog_0_5 on Link G4X AtomX - OEM-E 14: Fuel tank pressure sensor: no free analog_0_5 on Link G4X AtomX - OEM-E 15: Electrical load detector: no free analog_0_5 on Link G4X AtomX - OEM-E 16: Power steering load detector: no free analog_0_5 on Link G4X AtomX - OEM-D 1: Cruise set switch: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-D 4: Cruise main switch: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-D 7: Cruise resume switch: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-D 8: Brake pedal position switch: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-D 9: Cruise clutch signal: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-E 22: Brake pedal switch: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-E 28: A/C switch signal: no free switch_in/frequency_in/analog_0_5 on Link G4X AtomX - OEM-E 13: Multiplex communication: no free k_line on Link G4X AtomX - 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 | 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 | Link: G4X AtomX quickstart | https://linkecu.com/documentation/AtomXQuickstartGuide.pdf | archive | 2026-10-05 | 5fa903ea7bdf |
| 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 |
| 3 | community_copy | YourSpec: Link G4X AtomX ECU flying-lead harness wiring list | https://wpm.yourspec.com/projects/view/1462 | — | — | — |
| 2 | forum | Link forum: dbw wiring (07/08 S2000, ViPEC V88) | https://forums.linkecu.com/topic/313-dbw-wiring/ | — | 2026-10-05 | b788a1b47b9e |