AP2 2006–09 (F22C1, DBW) → AMP EFI MS3Pro Mini (auto)
AP2 2006–09 (F22C1, DBW) — AMP EFI — MS3Pro Mini
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-20
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 | 51 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 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-9 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | MS3PROMINI-A-22 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | MS3PROMINI-A-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-A-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-A-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | TB-J-GND | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | MS3PROMINI-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | TB-J-VCC | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-5V1-1 | MS3PROMINI-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-7 | MS3PROMINI-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-6 | MS3PROMINI-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-16 | MS3PROMINI-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-15 | MS3PROMINI-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-14 | MS3PROMINI-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-13 | MS3PROMINI-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B-5 | MS3PROMINI-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-4 | MS3PROMINI-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-3 | MS3PROMINI-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-2 | MS3PROMINI-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E-9 | MS3PROMINI-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E-17 | MS3PROMINI-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E-7 | MS3PROMINI-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-6 | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | RLY1-R-COIL- | MS3PROMINI-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-30 | MS3PROMINI-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-25 | MS3PROMINI-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-26 | MS3PROMINI-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-8 | MS3PROMINI-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | TB-J-TPS1 | MS3PROMINI-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | TB-J-TPS2 | MS3PROMINI-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-D-15 | MS3PROMINI-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E-12 | MS3PROMINI-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E-18 | MS3PROMINI-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E-1 | MS3PROMINI-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-18 | MS3PROMINI-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B-11 | MS3PROMINI-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-D-1 | MS3PROMINI-A-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E-11 | MS3PROMINI-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E-24 | MS3PROMINI-A-24 | 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 | MS3PROMINI-A-2 | MS3PROMINI-A-21 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | RLY1-R-COIL+ | MS3PROMINI-A-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | RLY1-R-COIL+ | MS3PROMINI-A-22 | open (OL) | +12 V supply must not touch power ground | |
| 4 | MS3PROMINI-A-2 | MS3PROMINI-A-1 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 5 | MS3PROMINI-A-2 | RLY1-R-OUT | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 6 | MS3PROMINI-A-21 | MS3PROMINI-A-1 | open (OL) | sensor ground must not touch +12 V supply | |
| 7 | MS3PROMINI-A-21 | RLY1-R-OUT | open (OL) | sensor ground must not touch +12 V supply | |
| 8 | MS3PROMINI-A-22 | MS3PROMINI-A-1 | open (OL) | power ground must not touch +12 V supply | |
| 9 | MS3PROMINI-A-22 | MS3PROMINI-A-2 | open (OL) | power ground must not touch 5 V sensor reference | |
| 10 | MS3PROMINI-A-22 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 11 | RLY1-R-COIL+ | MS3PROMINI-A-2 | 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
MS3PROMINI-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 12V+ switched power in | — | W30 | — | 0.5 | OEM-E-9 | — | — | — |
| 10 | Injector out F | — | W26 | — | 0.5 | OEM-B-5 | — | — | — |
| 11 | Injector out G | — | W27 | — | 0.5 | OEM-B-4 | — | — | — |
| 12 | Injector out H | — | W28 | — | 0.5 | OEM-B-3 | — | — | — |
| 13 | Analog in 1 | — | W37 | — | 0.5 | OEM-A-30 | — | — | — |
| 14 | Analog in 2 | — | W39 | — | 0.5 | OEM-A-26 | — | — | — |
| 15 | Analog in 3 | — | W41 | — | 0.5 | TB-J-TPS1 | — | — | — |
| 16 | Analog in 4 | — | W42 | — | 0.5 | TB-J-TPS2 | — | — | — |
| 17 | Spark out A | — | W22 | — | 0.5 | OEM-A-16 | — | — | — |
| 18 | Spark out B | — | W23 | — | 0.5 | OEM-A-15 | — | — | — |
| 19 | Spark out C | — | W24 | — | 0.5 | OEM-A-14 | — | — | — |
| 2 | +5V VREF out | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | Spark out D | — | W25 | — | 0.5 | OEM-A-13 | — | — | — |
| 21 | Sensor ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Power ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 23 | Power ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | CAN Low | — | W51 | — | 0.5 | OEM-E-24 | — | — | — |
| 25 | CAN High | — | W50 | — | 0.5 | OEM-E-11 | — | — | — |
| 26 | CLT in | — | W40 | — | 0.5 | OEM-B-8 | — | — | — |
| 27 | IAT in | — | W46 | — | 0.5 | OEM-E-1 | — | — | — |
| 28 | TPS in | — | W38 | — | 0.5 | OEM-A-25 | — | — | — |
| 29 | Digital switched in 1 / Flex fuel | — | W48 | — | 0.5 | OEM-B-11 | — | — | — |
| 3 | PWM out 1 / Idle | — | W32 | — | 0.5 | OEM-E-7 | — | — | — |
| 30 | CKP+ | — | W20 | — | 0.5 | OEM-A-7 | — | — | — |
| 31 | CKP- | — | — | — | — | — | — | — | — |
| 32 | CMP+ | — | W21 | — | 0.5 | OEM-A-6 | — | — | — |
| 33 | CMP- | — | — | — | — | — | — | — | — |
| 34 | Digital frequency in 1 (Hall) | — | W47 | — | 0.5 | OEM-A-18 | — | — | — |
| 35 | Digital frequency in 2 (Hall) | — | W49 | — | 0.5 | OEM-D-1 | — | — | — |
| 4 | Fuel pump out | — | W31 | — | 0.5 | OEM-E-17 | — | — | — |
| 5 | Injector out A | — | W29 | — | 0.5 | OEM-B-2 | — | — | — |
| 6 | Injector out B | — | W36 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| 7 | Injector out C | — | W43 | — | 0.5 | OEM-D-15 | — | — | — |
| 8 | Injector out D | — | W44 | — | 0.5 | OEM-E-12 | — | — | — |
| 9 | Injector out E | — | W45 | — | 0.5 | OEM-E-18 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Knock sensor | — | — | — | — | — | — | — | — |
| 2 | Ignition power 2 | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 | — | W3 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Cam position sensor (T2) | — | W21 | — | 0.5 | MS3PROMINI-A-32 | — | — | — |
| 7 | Crank position sensor (T1) | — | W20 | — | 0.5 | MS3PROMINI-A-30 | — | — | — |
| 8 | Logic ground 2 | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Logic ground 1 | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | A/F sensor heater | — | — | — | — | — | — | — | — |
| 11 | Unused cavity | — | — | — | — | — | — | — | — |
| 12 | Unused cavity | — | — | — | — | — | — | — | — |
| 13 | Ignition coil 4 | — | W25 | — | 0.5 | MS3PROMINI-A-20 | — | — | — |
| 14 | Ignition coil 3 | — | W24 | — | 0.5 | MS3PROMINI-A-19 | — | — | — |
| 15 | Ignition coil 2 | — | W23 | — | 0.5 | MS3PROMINI-A-18 | — | — | — |
| 16 | Ignition coil 1 | — | W22 | — | 0.5 | MS3PROMINI-A-17 | — | — | — |
| 17 | Unused cavity | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor | — | W47 | — | 0.5 | MS3PROMINI-A-34 | — | — | — |
| 19 | Unused cavity | — | — | — | — | — | — | — | — |
| 20 | Sensor voltage 2 | — | W15 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor voltage 1 | — | W16 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Unused cavity | — | — | — | — | — | — | — | — |
| 23 | Sensor ground 2 | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Sensor ground 1 | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 25 | Accelerator pedal position B | — | W38 | — | 0.5 | MS3PROMINI-A-28 | — | — | — |
| 26 | Accelerator pedal position A | — | W39 | — | 0.5 | MS3PROMINI-A-14 | — | — | — |
| 27 | Unused cavity | — | — | — | — | — | — | — | — |
| 28 | A/F sensor signal − | — | — | — | — | — | — | — | — |
| 29 | Unused cavity | — | — | — | — | — | — | — | — |
| 30 | MAP sensor | — | W37 | — | 0.5 | MS3PROMINI-A-13 | — | — | — |
| 31 | A/F sensor signal + | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | — | — | — | — | — | — | — |
| 2 | Injector 4 | — | W29 | — | 0.5 | MS3PROMINI-A-5 | — | — | — |
| 3 | Injector 3 | — | W28 | — | 0.5 | MS3PROMINI-A-12 | — | — | — |
| 4 | Injector 2 | — | W27 | — | 0.5 | MS3PROMINI-A-11 | — | — | — |
| 5 | Injector 1 | — | W26 | — | 0.5 | MS3PROMINI-A-10 | — | — | — |
| 6 | VTEC solenoid | — | W33 | — | 0.5 | RLY1-R-OUT | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor | — | W40 | — | 0.5 | MS3PROMINI-A-26 | — | — | — |
| 9 | — | — | — | — | — | — | — | — | — |
| 10 | Alternator L signal | — | — | — | — | — | — | — | — |
| 11 | VTEC oil pressure switch | — | W48 | — | 0.5 | MS3PROMINI-A-29 | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
OEM-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Cruise set switch | — | W49 | — | 0.5 | MS3PROMINI-A-35 | — | — | — |
| 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 | — | W43 | — | 0.5 | MS3PROMINI-A-7 | — | — | — |
| 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 | — | W46 | — | 0.5 | MS3PROMINI-A-27 | — | — | — |
| 2 | Unused cavity | — | — | — | — | — | — | — | — |
| 3 | Logic ground 3 | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor voltage 3 | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Unused cavity | — | — | — | — | — | — | — | — |
| 7 | Main relay control | — | W32 | — | 0.5 | MS3PROMINI-A-3 | — | — | — |
| 8 | A/F sensor heater relay | — | — | — | — | — | — | — | — |
| 9 | Ignition signal | — | W30 | — | 0.5 | MS3PROMINI-A-1 | — | — | — |
| 10 | Unused cavity | — | — | — | — | — | — | — | — |
| 11 | CAN H | — | W50 | — | 0.5 | MS3PROMINI-A-25 | — | — | — |
| 12 | Radiator fan control | — | W44 | — | 0.5 | MS3PROMINI-A-8 | — | — | — |
| 13 | Multiplex communication | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor | — | — | — | — | — | — | — | — |
| 15 | Electrical load detector | — | — | — | — | — | — | — | — |
| 16 | Power steering load detector | — | — | — | — | — | — | — | — |
| 17 | Fuel pump relay | — | W31 | — | 0.5 | MS3PROMINI-A-4 | — | — | — |
| 18 | A/C clutch relay | — | W45 | — | 0.5 | MS3PROMINI-A-9 | — | — | — |
| 19 | Evap canister vent shut valve | — | — | — | — | — | — | — | — |
| 20 | Secondary O2 sensor | — | — | — | — | — | — | — | — |
| 21 | Secondary O2 heater | — | — | — | — | — | — | — | — |
| 22 | Brake pedal switch | — | — | — | — | — | — | — | — |
| 23 | K-Line | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | W51 | — | 0.5 | MS3PROMINI-A-24 | — | — | — |
| 25 | Engine speed pulse (tacho) | — | — | — | — | — | — | — | — |
| 26 | NC | — | — | — | — | — | — | — | — |
| 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) | — | W35 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W36 | — | 0.5 | MS3PROMINI-A-6 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W34 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W33 | — | 0.5 | OEM-B-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W10 | — | 0.5 | OEM-A-23 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-A-24 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | TB-J-GND | — | — | — |
| 1 | — | — | W14 | — | 0.5 | MS3PROMINI-A-21 | — | — | — |
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 | — | — | W34 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W35 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W18 | — | 0.5 | TB-J-VCC | — | — | — |
| 1 | — | — | W19 | — | 0.5 | MS3PROMINI-A-2 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-A-21 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-E-5 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | MS3PROMINI-A-22 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | MS3PROMINI-A-23 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-8 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-9 | — | — | — |
TB-J
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| TPS1 | Throttle position 1 | — | W41 | — | 0.5 | MS3PROMINI-A-15 | — | — | — |
| VCC | Throttle sensor 5V supply | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| TPS2 | Throttle position 2 | — | W42 | — | 0.5 | MS3PROMINI-A-16 | — | — | — |
| GND | Throttle sensor ground | — | W13 | — | 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 | — | — | — | 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 | MS3PROMINI-A-20 | Spark out D | ignition_out | single_source | |
| OEM-A-14 | Ignition coil 3 | ignition_out | MS3PROMINI-A-19 | Spark out C | ignition_out | single_source | |
| OEM-A-15 | Ignition coil 2 | ignition_out | MS3PROMINI-A-18 | Spark out B | ignition_out | single_source | |
| OEM-A-16 | Ignition coil 1 | ignition_out | MS3PROMINI-A-17 | Spark out A | ignition_out | single_source | |
| OEM-A-17 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-18 | Vehicle speed sensor | digital_in | MS3PROMINI-A-34 | Digital frequency in 1 (Hall) | digital_in | single_source | |
| OEM-A-19 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-2 | Ignition power 2 | power_in | RLY1-R-COIL+ + RLY1-R-IN | 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 | MS3PROMINI-A-2 + TB-J-VCC | +5V VREF out + Throttle sensor 5V supply | power_in + vref | corroborated | |
| OEM-A-21 | Sensor voltage 1 | vref | MS3PROMINI-A-2 + TB-J-VCC | +5V VREF out + Throttle sensor 5V supply | power_in + vref | single_source | |
| OEM-A-22 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-23 | Sensor ground 2 | sensor_ground | MS3PROMINI-A-21 + TB-J-GND | Sensor ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-A-24 | Sensor ground 1 | sensor_ground | MS3PROMINI-A-21 + TB-J-GND | Sensor ground + Throttle sensor ground | sensor_ground | single_source | |
| OEM-A-25 | Accelerator pedal position B | analog_in | MS3PROMINI-A-28 | TPS in | analog_in | corroborated | |
| OEM-A-26 | Accelerator pedal position A | analog_in | MS3PROMINI-A-14 | Analog in 2 | analog_in | corroborated | |
| OEM-A-27 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-28 | A/F sensor signal − | — | — | — | — | single_source | |
| OEM-A-29 | Unused cavity | — | — | — | — | unverified | |
| OEM-A-3 | Ignition power 1 | power_in | RLY1-R-COIL+ + RLY1-R-IN | 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 | MS3PROMINI-A-13 | Analog in 1 | analog_in | single_source | |
| OEM-A-31 | A/F sensor signal + | — | — | — | — | single_source | |
| OEM-A-4 | Power ground 2 | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-A-5 | Power ground 1 | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-A-6 | Cam position sensor (T2) | trigger_in | MS3PROMINI-A-32 | CMP+ | trigger_in | single_source | |
| OEM-A-7 | Crank position sensor (T1) | trigger_in | MS3PROMINI-A-30 | CKP+ | trigger_in | single_source | |
| OEM-A-8 | Logic ground 2 | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-A-9 | Logic ground 1 | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-B-10 | Alternator L signal | — | — | — | — | single_source | |
| OEM-B-11 | VTEC oil pressure switch | digital_in | MS3PROMINI-A-29 | Digital switched in 1 / Flex fuel | digital_in | single_source | |
| OEM-B-13 | Alternator FR signal | analog_in | — | — | — | single_source | |
| OEM-B-15 | NC | — | — | — | — | 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 | MS3PROMINI-A-5 | Injector out A | 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-3 | Injector 3 | injector_out | MS3PROMINI-A-12 | Injector out H | injector_out | single_source | |
| OEM-B-4 | Injector 2 | injector_out | MS3PROMINI-A-11 | Injector out G | injector_out | single_source | |
| OEM-B-5 | Injector 1 | injector_out | MS3PROMINI-A-10 | Injector out F | 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-8 | Coolant temp sensor | temp_in | MS3PROMINI-A-26 | CLT in | temp_in | single_source | |
| OEM-D-1 | Cruise set switch | digital_in | MS3PROMINI-A-35 | Digital frequency in 2 (Hall) | 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 | MS3PROMINI-A-7 | Injector out C | injector_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 | MS3PROMINI-A-27 | IAT in | temp_in | single_source | |
| OEM-E-10 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-11 | CAN H | can_h | MS3PROMINI-A-25 | CAN High | can_h | single_source | |
| OEM-E-12 | Radiator fan control | low_side_out | MS3PROMINI-A-8 | Injector out D | injector_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 | MS3PROMINI-A-4 | Fuel pump out | low_side_out | single_source | |
| OEM-E-18 | A/C clutch relay | low_side_out | MS3PROMINI-A-9 | Injector out E | injector_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 | K-Line | serial | — | — | — | Gy | single_source |
| OEM-E-24 | CAN L | can_l | MS3PROMINI-A-24 | CAN Low | can_l | single_source | |
| OEM-E-25 | Engine speed pulse (tacho) | tacho_out | — | — | — | single_source | |
| OEM-E-26 | NC | — | — | — | — | unverified | |
| 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 | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power 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 | MS3PROMINI-A-21 + TB-J-GND | Sensor ground + Throttle sensor ground | sensor_ground | corroborated | |
| OEM-E-5 | Sensor voltage 3 | vref | MS3PROMINI-A-2 + TB-J-VCC | +5V VREF out + Throttle sensor 5V supply | power_in + vref | corroborated | |
| OEM-E-6 | Unused cavity | — | — | — | — | unverified | |
| OEM-E-7 | Main relay control | low_side_out | MS3PROMINI-A-3 | PWM out 1 / Idle | 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 | MS3PROMINI-A-1 | 12V+ switched power in | power_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 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 | — | |
| W4 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 | — | |
| W5 | OEM-A-8 | SP-GND-1 | 0.85 | no route | Logic ground 2 | — | |
| W6 | OEM-A-9 | SP-GND-1 | 0.85 | no route | Logic ground 1 | — | |
| W7 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 | — | |
| W8 | SP-GND-1 | MS3PROMINI-A-22 | 0.85 | no route | Power ground | — | |
| W9 | SP-GND-1 | MS3PROMINI-A-23 | 0.85 | no route | Power ground | — | |
| W10 | OEM-A-23 | SP-0V-1 | 0.5 | no route | Sensor ground 2 | — | |
| W11 | OEM-A-24 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W12 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 | — | |
| W13 | TB-J-GND | SP-0V-1 | 0.5 | no route | Throttle sensor ground | — | |
| W14 | SP-0V-1 | MS3PROMINI-A-21 | 0.5 | no route | Sensor ground | — | |
| W15 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor voltage 2 | — | |
| W16 | OEM-A-21 | SP-5V1-1 | 0.5 | no route | Sensor voltage 1 | — | |
| W17 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor voltage 3 | — | |
| W18 | TB-J-VCC | SP-5V1-1 | 0.5 | no route | Throttle sensor 5V supply | — | |
| W19 | SP-5V1-1 | MS3PROMINI-A-2 | 0.5 | no route | +5V VREF out | — | |
| W20 | OEM-A-7 | MS3PROMINI-A-30 | 0.5 | no route | Crank position sensor (T1) | — | |
| W21 | OEM-A-6 | MS3PROMINI-A-32 | 0.5 | no route | Cam position sensor (T2) | — | |
| W22 | OEM-A-16 | MS3PROMINI-A-17 | 0.5 | no route | Ignition coil 1 | — | |
| W23 | OEM-A-15 | MS3PROMINI-A-18 | 0.5 | no route | Ignition coil 2 | — | |
| W24 | OEM-A-14 | MS3PROMINI-A-19 | 0.5 | no route | Ignition coil 3 | — | |
| W25 | OEM-A-13 | MS3PROMINI-A-20 | 0.5 | no route | Ignition coil 4 | — | |
| W26 | OEM-B-5 | MS3PROMINI-A-10 | 0.5 | no route | Injector 1 | — | |
| W27 | OEM-B-4 | MS3PROMINI-A-11 | 0.5 | no route | Injector 2 | — | |
| W28 | OEM-B-3 | MS3PROMINI-A-12 | 0.5 | no route | Injector 3 | — | |
| W29 | OEM-B-2 | MS3PROMINI-A-5 | 0.5 | no route | Injector 4 | — | |
| W30 | OEM-E-9 | MS3PROMINI-A-1 | 0.5 | no route | Ignition signal | — | |
| W31 | OEM-E-17 | MS3PROMINI-A-4 | 0.5 | no route | Fuel pump relay | — | |
| W32 | OEM-E-7 | MS3PROMINI-A-3 | 0.5 | no route | Main relay control | — | |
| W33 | OEM-B-6 | RLY1-R-OUT | 0.5 | no route | VTEC solenoid | — | |
| W34 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W35 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W36 | RLY1-R-COIL- | MS3PROMINI-A-6 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W37 | OEM-A-30 | MS3PROMINI-A-13 | 0.5 | no route | MAP sensor | — | |
| W38 | OEM-A-25 | MS3PROMINI-A-28 | 0.5 | no route | Accelerator pedal position B | — | |
| W39 | OEM-A-26 | MS3PROMINI-A-14 | 0.5 | no route | Accelerator pedal position A | — | |
| W40 | OEM-B-8 | MS3PROMINI-A-26 | 0.5 | no route | Coolant temp sensor | — | |
| W41 | TB-J-TPS1 | MS3PROMINI-A-15 | 0.5 | no route | Throttle position 1 | — | |
| W42 | TB-J-TPS2 | MS3PROMINI-A-16 | 0.5 | no route | Throttle position 2 | — | |
| W43 | OEM-D-15 | MS3PROMINI-A-7 | 0.5 | no route | Throttle actuator relay | — | |
| W44 | OEM-E-12 | MS3PROMINI-A-8 | 0.5 | no route | Radiator fan control | — | |
| W45 | OEM-E-18 | MS3PROMINI-A-9 | 0.5 | no route | A/C clutch relay | — | |
| W46 | OEM-E-1 | MS3PROMINI-A-27 | 0.5 | no route | Coolant temp sensor 2 | — | |
| W47 | OEM-A-18 | MS3PROMINI-A-34 | 0.5 | no route | Vehicle speed sensor | — | |
| W48 | OEM-B-11 | MS3PROMINI-A-29 | 0.5 | no route | VTEC oil pressure switch | — | |
| W49 | OEM-D-1 | MS3PROMINI-A-35 | 0.5 | no route | Cruise set switch | — | |
| W50 | OEM-E-11 | MS3PROMINI-A-25 | 0.5 | no route | CAN H | — | |
| W51 | OEM-E-24 | MS3PROMINI-A-24 | 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 | MS3PROMINI-A-15 | Analog in 3 | analog_0_5 | — |
| dbw_tps | TB | Throttle position 2 | 0_5v | MS3PROMINI-A-16 | Analog in 4 | analog_0_5 | — |
Findings
Open (11)
| 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. |
| warn | DATASET_GAP | S2000 ECU B | 9 of 24 cavities on S2000 ECU B have no pin data (1,7,9,12,14,16,22,23,24). Anything there is invisible to these checks. |
| warn | DBW_SHARED_5V | MS3PROMINI-A-2 + 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 (MS3PROMINI-A-2). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. MS3Pro Mini 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 | 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 | MS3PROMINI-A-2 + 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 | NET_FAMILY | OEM-D-15 ↔ MS3PROMINI-A-7 | OEM-D-15 "Throttle actuator relay" [low_side_out] is wired to MS3PROMINI-A-7 "Injector out C" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E-12 ↔ MS3PROMINI-A-8 | OEM-E-12 "Radiator fan control" [low_side_out] is wired to MS3PROMINI-A-8 "Injector out D" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E-18 ↔ MS3PROMINI-A-9 | OEM-E-18 "A/C clutch relay" [low_side_out] is wired to MS3PROMINI-A-9 "Injector out E" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E-9 ↔ MS3PROMINI-A-1 | OEM-E-9 "Ignition signal" [digital_in] is wired to MS3PROMINI-A-1 "12V+ switched power in" [power_in]. Switched supply used as the ignition-on sense. |
| info | UNMAPPED | OEM | 30 optional OEM pins are not mapped: OEM-A-1 Knock sensor; 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-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-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-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-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-23 K-Line; OEM-E-25 Engine speed pulse (tacho); 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 |
Accepted (0)
| Code | Subject | Reason | By |
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Notes
Fit check: needs add-on. Resolve these before building: - Drive-by-wire only with an add-on: AMP Drive-By-Wire Controller - Trigger pattern for Honda F22C1 not found in the ECU's docs (Confirmed absent from documented trigger/decoder list. MS3 "Honda RC51" mode lists the AP1 S2000 only; there is no F22C1/AP2 decoder, and the F22C1 cam trigger (4-1) differs from the AP1/RC51 pattern, so AP2 is not supported.) - No knock input; the stock knock sensor would be unused Auto-mapped by auto_map() from the library pin data on 2026-10-20. Review every wire against both manuals before building. Open items: - TB-J M+: Throttle motor +: needs a paired H-bridge on AMP EFI MS3Pro Mini (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 AMP EFI MS3Pro Mini (H-bridge pairing not in the library: set device_pin.bridge_pair from the ECU manual) Not wired: - OEM-A 1: Knock sensor: no free knock input on AMP EFI MS3Pro Mini - 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 AMP EFI MS3Pro Mini - OEM-E 21: Secondary O2 heater: no free heater_low_side/low_side/relay_control/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 10: A/F sensor heater: no free heater_low_side/low_side/relay_control/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-B 18: Alternator control: no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-B 21: Evap canister purge valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-E 19: Evap canister vent shut valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-E 25: Engine speed pulse (tacho): no free tacho/frequency_out/low_side/ls_hs on AMP EFI MS3Pro Mini - OEM-E 20: Secondary O2 sensor: no free o2_narrowband/analog_0_5 on AMP EFI MS3Pro Mini - OEM-B 17: Intake air temp sensor: no free thermistor/analog_0_5 on AMP EFI MS3Pro Mini - OEM-B 13: Alternator FR signal: no free analog_0_5 on AMP EFI MS3Pro Mini - OEM-E 14: Fuel tank pressure sensor: no free analog_0_5 on AMP EFI MS3Pro Mini - OEM-E 15: Electrical load detector: no free analog_0_5 on AMP EFI MS3Pro Mini - OEM-E 16: Power steering load detector: no free analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 4: Cruise main switch: no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 7: Cruise resume switch: no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 8: Brake pedal position switch: no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 9: Cruise clutch signal: no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-E 22: Brake pedal switch: no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-E 28: A/C switch signal: no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-E 13: Multiplex communication: no free k_line on AMP EFI MS3Pro Mini - OEM-E 23: K-Line: no free k_line on AMP EFI MS3Pro Mini - 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 | AMP EFI: MS3Pro Mini manual (fw 1.6.1) pinout & output ratings | https://cdn.shopify.com/s/files/1/0960/0014/7754/files/MS3Pro_User_Manual_Firmware_1.6.1_Mini.pdf?v=1760643335 | archive | 2026-10-05 | bed7d8ae8408 |
| 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 | 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 | community_copy | 2008 Honda S2000 Electrical Troubleshooting Manual (factory) | https://s2000.club/OM/Wiring%20Diagram.pdf | — | — | — |
| 3 | vendor_doc | ScienceofSpeed Link G4X ECU, S2000 2006–09 (product page) | https://www.scienceofspeed.com/s2000-2000-09/scienceofspeed-link-g4x-ecu-s2000-2006-09-enpp-3822.html | archive | 2026-10-05 | 643bc0efd6d7 |
| 2 | forum | Link forum: dbw wiring (07/08 S2000, ViPEC V88) | https://forums.linkecu.com/topic/313-dbw-wiring/ | — | 2026-10-05 | b788a1b47b9e |