RSX Type-S 2002-04 (K20A2) → MoTeC M800 universal (auto)
RSX Type-S 2002-04 (K20A2) — MoTeC — M800
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08
Before you start
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 1: read the Findings page before cutting any wire |
| Size of the job | 58 wires · 9 connectors · 7 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 | M800-A-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | M800-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | M800-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-A-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | M800-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | M800-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | M800-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E-5 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-5V1-1 | M800-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-21 | M800-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-7 | M800-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-25 | M800-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-30 | M800-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-29 | M800-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-28 | M800-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-27 | M800-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-5 | M800-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-4 | M800-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-3 | M800-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-2 | M800-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E-7 | M800-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B-6 | M800-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E-1 | M800-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E-18 | M800-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E-8 | M800-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E-6 | M800-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-1 | M800-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-12 | M800-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B-15 | M800-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-1 | M800-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B-18 | M800-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-B-21 | M800-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-6 | M800-B-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-16 | M800-B-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-19 | M800-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-15 | M800-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E-2 | M800-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B-8 | M800-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-B-17 | M800-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-B-13 | M800-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E-14 | M800-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E-15 | M800-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-18 | M800-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-B-10 | M800-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-B-9 | M800-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E-16 | M800-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E-20 | M800-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E-22 | M800-B-22 | 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 | M800-A-26 | M800-A-10 | open (OL) | +12 V supply must not touch power ground | |
| 2 | M800-A-26 | M800-B-14 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | M800-A-10 | M800-A-2 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | M800-A-10 | M800-A-9 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | M800-A-26 | M800-A-2 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 6 | M800-A-26 | M800-A-9 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | M800-B-14 | M800-A-2 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 8 | M800-B-14 | M800-A-9 | open (OL) | sensor ground must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
M800-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | AUX2 | — | W32 | — | 0.5 | OEM-B-6 | — | — | — |
| 2 | 5V Engine Sensor Supply | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 3 | IGN1 | — | W23 | — | 0.5 | OEM-A-30 | — | — | — |
| 4 | IGN2 | — | W24 | — | 0.5 | OEM-A-29 | — | — | — |
| 5 | IGN3 | — | W25 | — | 0.5 | OEM-A-28 | — | — | — |
| 6 | IGN4 | — | W26 | — | 0.5 | OEM-A-27 | — | — | — |
| 7 | IGN5 | — | — | — | — | — | — | — | — |
| 8 | IGN6 | — | — | — | — | — | — | — | — |
| 9 | 5V Auxiliary Sensor Supply | — | W20 | — | 0.5 | OEM-A-21 | — | — | — |
| 10 | GND Battery Negative | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | GND Battery Negative | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | 8V Engine Sensor Supply | — | — | — | — | — | — | — | — |
| 13 | 8V Auxiliary Sensor and CAN Supply | — | — | — | — | — | — | — | — |
| 14 | AV1 | — | W45 | — | 0.5 | OEM-A-19 | — | — | — |
| 15 | Analog Voltage Input 2 | — | W46 | — | 0.5 | OEM-A-15 | — | — | — |
| 16 | Analog Voltage Input 3 | — | W47 | — | 0.5 | OEM-E-2 | — | — | — |
| 17 | Analog Voltage Input 4 | — | W50 | — | 0.5 | OEM-B-13 | — | — | — |
| 18 | AUX1 | — | W31 | — | 0.5 | OEM-E-7 | — | — | — |
| 19 | INJ1 | — | W27 | — | 0.5 | OEM-B-5 | — | — | — |
| 20 | INJ2 | — | W28 | — | 0.5 | OEM-B-4 | — | — | — |
| 21 | INJ3 | — | W29 | — | 0.5 | OEM-B-3 | — | — | — |
| 22 | INJ4 | — | W30 | — | 0.5 | OEM-B-2 | — | — | — |
| 23 | AUX3 | — | W33 | — | 0.5 | OEM-E-1 | — | — | — |
| 24 | AUX4 | — | W34 | — | 0.5 | OEM-E-18 | — | — | — |
| 25 | Analog Voltage Input 5 | — | W51 | — | 0.5 | OEM-E-14 | — | — | — |
| 26 | VBAT Battery Positive | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 27 | INJ5 | — | W39 | — | 0.5 | OEM-B-15 | — | — | — |
| 28 | INJ6 | — | W40 | — | 0.5 | OEM-B-1 | — | — | — |
| 29 | INJ7 | — | W41 | — | 0.5 | OEM-B-18 | — | — | — |
| 30 | INJ8 | — | W42 | — | 0.5 | OEM-B-21 | — | — | — |
| 31 | AUX5 | — | W35 | — | 0.5 | OEM-E-8 | — | — | — |
| 32 | AUX6 | — | W36 | — | 0.5 | OEM-E-6 | — | — | — |
| 33 | AUX7 | — | W37 | — | 0.5 | OEM-A-1 | — | — | — |
| 34 | AUX8 | — | W38 | — | 0.5 | OEM-A-12 | — | — | — |
M800-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Crank Reference Timing Input | — | W21 | — | 0.5 | OEM-A-7 | — | — | — |
| 2 | Cam Sync Timing Input | — | W22 | — | 0.5 | OEM-A-25 | — | — | — |
| 3 | Analog Temperature Input 1 | — | W48 | — | 0.5 | OEM-B-8 | — | — | — |
| 4 | Analog Temperature Input 2 | — | W49 | — | 0.5 | OEM-B-17 | — | — | — |
| 5 | Analog Temperature Input 3 | — | — | — | — | — | — | — | — |
| 6 | Analog Temperature Input 4 | — | — | — | — | — | — | — | — |
| 7 | Analog Temperature Input 5 | — | — | — | — | — | — | — | — |
| 8 | Digital Input 1 | — | W53 | — | 0.5 | OEM-A-18 | — | — | — |
| 9 | Digital Input 2 | — | W54 | — | 0.5 | OEM-B-10 | — | — | — |
| 10 | Digital Input 3 | — | W55 | — | 0.5 | OEM-B-9 | — | — | — |
| 11 | Digital Input 4 | — | W56 | — | 0.5 | OEM-E-16 | — | — | — |
| 12 | Lambda2 Sense Voltage | — | — | — | — | — | — | — | — |
| 13 | Lambda2 Pump Current | — | — | — | — | — | — | — | — |
| 14 | 0V Comms Reference | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | 0V Auxiliary Sensor Supply | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | 0V Engine Sensor Supply | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | RS232 Transmit Data | — | — | — | — | — | — | — | — |
| 18 | RS232 Receive Data | — | — | — | — | — | — | — | — |
| 19 | Analog Temperature Input 6 | — | — | — | — | — | — | — | — |
| 20 | Analog Voltage Input 6 | — | W52 | — | 0.5 | OEM-E-15 | — | — | — |
| 21 | AV7 | — | W57 | — | 0.5 | OEM-E-20 | — | — | — |
| 22 | AV8 | — | W58 | — | 0.5 | OEM-E-22 | — | — | — |
| 23 | CAN Bus High | — | — | — | — | — | — | — | — |
| 24 | CAN Bus Low | — | — | — | — | — | — | — | — |
| 25 | Lambda1 Sense Voltage | — | W44 | — | 0.5 | OEM-A-16 | — | — | — |
| 26 | Lambda1 Pump Current | — | W43 | — | 0.5 | OEM-A-6 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/F sensor heater control (AFSHTC) | — | W37 | — | 0.5 | M800-A-33 | — | — | — |
| 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) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 (PG1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | A/F sensor + (AFS+, wideband Ip) | — | W43 | — | 0.5 | M800-B-26 | — | — | — |
| 7 | Crank position sensor (CKP) | — | W21 | — | 0.5 | M800-B-1 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Knock sensor (KS) | — | — | — | — | — | — | — | — |
| 10 | Sensor ground 2 (SG2) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Sensor ground 1 (SG1) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Idle air control valve (IACV) | — | W38 | — | 0.5 | M800-A-34 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | Throttle position sensor (TPS) | — | W46 | — | 0.5 | M800-A-15 | — | — | — |
| 16 | A/F sensor - (AFS-, wideband Vs) | — | W44 | — | 0.5 | M800-B-25 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor (VSS, M/T) | — | W53 | — | 0.5 | M800-B-8 | — | — | — |
| 19 | Manifold absolute pressure (MAP) | — | W45 | — | 0.5 | M800-A-14 | — | — | — |
| 20 | Sensor 5V supply 2 (VCC2) | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor 5V supply 1 (VCC1) | — | W20 | — | 0.5 | M800-A-9 | — | — | — |
| 22 | A/F sensor heater supply (AFSHTC+) | — | — | — | — | — | — | — | — |
| 23 | Logic ground 2 (LG2) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Logic ground 1 (LG1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Camshaft position A (CMP A) | — | W22 | — | 0.5 | M800-B-2 | — | — | — |
| 26 | Camshaft position B (CMP B) | — | — | — | — | — | — | — | — |
| 27 | Ignition coil 4 (IGPLS4) | — | W26 | — | 0.5 | M800-A-6 | — | — | — |
| 28 | Ignition coil 3 (IGPLS3) | — | W25 | — | 0.5 | M800-A-5 | — | — | — |
| 29 | Ignition coil 2 (IGPLS2) | — | W24 | — | 0.5 | M800-A-4 | — | — | — |
| 30 | Ignition coil 1 (IGPLS1) | — | W23 | — | 0.5 | M800-A-3 | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTC oil control solenoid (+) | — | W40 | — | 0.5 | M800-A-28 | — | — | — |
| 2 | Injector 4 (INJ4) | — | W30 | — | 0.5 | M800-A-22 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W29 | — | 0.5 | M800-A-21 | — | — | — |
| 4 | Injector 2 (INJ2) | — | W28 | — | 0.5 | M800-A-20 | — | — | — |
| 5 | Injector 1 (INJ1) | — | W27 | — | 0.5 | M800-A-19 | — | — | — |
| 6 | Radiator fan control (FANC) | — | W32 | — | 0.5 | M800-A-1 | — | — | — |
| 7 | Reverse lockout solenoid (RVS, Type-S) | — | — | — | — | — | — | — | — |
| 8 | Coolant temp sensor (ECT) | — | W48 | — | 0.5 | M800-B-3 | — | — | — |
| 9 | VTEC oil pressure switch (VTPSW) | — | W55 | — | 0.5 | M800-B-10 | — | — | — |
| 10 | Alternator L signal (ALTL) | — | W54 | — | 0.5 | M800-B-9 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal (ALTF) | — | W50 | — | 0.5 | M800-A-17 | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | VTEC solenoid (VTS) | — | W39 | — | 0.5 | M800-A-27 | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor (IAT) | — | W49 | — | 0.5 | M800-B-4 | — | — | — |
| 18 | Alternator control (ALTC) | — | W41 | — | 0.5 | M800-A-29 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve (PCS) | — | W42 | — | 0.5 | M800-A-30 | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | VTC oil control solenoid (-) | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Immobilizer fuel pump relay (IMO FPR) | — | W33 | — | 0.5 | M800-A-23 | — | — | — |
| 2 | Secondary heated O2 sensor (SHO2S) | — | W47 | — | 0.5 | M800-A-16 | — | — | — |
| 3 | Logic ground 3 (LG3) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 (SG3) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor 5V supply 3 (VCC3) | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 6 | Secondary O2 heater control (SO2SHTC) | — | W36 | — | 0.5 | M800-A-32 | — | — | — |
| 7 | Main relay control (MRLY) | — | W31 | — | 0.5 | M800-A-18 | — | — | — |
| 8 | A/F sensor heater relay control (AFSHTCR) | — | W35 | — | 0.5 | M800-A-31 | — | — | — |
| 9 | Ignition switch signal (IG1) | — | — | — | — | — | — | — | — |
| 10 | — | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor (FTP) | — | W51 | — | 0.5 | M800-A-25 | — | — | — |
| 15 | Electrical load detector (ELD) | — | W52 | — | 0.5 | M800-B-20 | — | — | — |
| 16 | Power steering pressure switch (PSPSW) | — | W56 | — | 0.5 | M800-B-11 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | A/C clutch relay (ACC) | — | W34 | — | 0.5 | M800-A-24 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | Brake switch / interlock (2WBS) | — | W57 | — | 0.5 | M800-B-21 | — | — | — |
| 21 | Evap vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 22 | Brake switch (BKSW) | — | W58 | — | 0.5 | M800-B-22 | — | — | — |
| 23 | K-line (diagnostic) | — | — | — | — | — | — | — | — |
| 24 | Multiplex communication (SEFMJ) | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — |
| 26 | Engine speed pulse / tacho (NEP) | — | — | — | — | — | — | — | — |
| 27 | Immobilizer code (IMOCD) | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | Service check signal (SCS) | — | — | — | — | — | — | — | — |
| 30 | Write enable signal (WEN) | — | — | — | — | — | — | — | — |
| 31 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-A-10 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A-11 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | M800-B-14 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | M800-B-15 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | M800-B-16 | — | — | — |
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 | M800-A-26 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-A-20 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-E-5 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | M800-A-2 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | M800-A-10 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | M800-A-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | A/F sensor heater control (AFSHTC) | low_side_out | M800-A-33 | AUX7 | switch_out | single_source | |
| OEM-A-10 | Sensor ground 2 (SG2) | sensor_ground | M800-B-14 + M800-B-15 + M800-B-16 | 0V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supply | sensor_ground | corroborated | |
| OEM-A-11 | Sensor ground 1 (SG1) | sensor_ground | M800-B-14 + M800-B-15 + M800-B-16 | 0V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supply | sensor_ground | corroborated | |
| OEM-A-12 | Idle air control valve (IACV) | low_side_out | M800-A-34 | AUX8 | switch_out | corroborated | |
| OEM-A-15 | Throttle position sensor (TPS) | analog_in | M800-A-15 | Analog Voltage Input 2 | analog_in | corroborated | |
| OEM-A-16 | A/F sensor - (AFS-, wideband Vs) | wb_vs | M800-B-25 | Lambda1 Sense Voltage | wb_vs | single_source | |
| OEM-A-18 | Vehicle speed sensor (VSS, M/T) | digital_in | M800-B-8 | Digital Input 1 | digital_in | corroborated | |
| OEM-A-19 | Manifold absolute pressure (MAP) | analog_in | M800-A-14 | AV1 | analog_in | corroborated | |
| OEM-A-2 | Ignition power 2 (IGP2) | power_in | M800-A-26 | VBAT Battery Positive | power_in | corroborated | |
| OEM-A-20 | Sensor 5V supply 2 (VCC2) | vref | M800-A-2 | 5V Engine Sensor Supply | vref | corroborated | |
| OEM-A-21 | Sensor 5V supply 1 (VCC1) | vref | M800-A-9 | 5V Auxiliary Sensor Supply | vref | corroborated | |
| OEM-A-22 | A/F sensor heater supply (AFSHTC+) | power_out | — | — | — | single_source | |
| OEM-A-23 | Logic ground 2 (LG2) | ground | M800-A-10 + M800-A-11 | GND Battery Negative + GND Battery Negative | ground | corroborated | |
| OEM-A-24 | Logic ground 1 (LG1) | ground | M800-A-10 + M800-A-11 | GND Battery Negative + GND Battery Negative | ground | corroborated | |
| OEM-A-25 | Camshaft position A (CMP A) | trigger_in | M800-B-2 | Cam Sync Timing Input | trigger_in | single_source | |
| OEM-A-26 | Camshaft position B (CMP B) | trigger_in | — | — | — | single_source | |
| OEM-A-27 | Ignition coil 4 (IGPLS4) | ignition_out | M800-A-6 | IGN4 | ignition_out | corroborated | |
| OEM-A-28 | Ignition coil 3 (IGPLS3) | ignition_out | M800-A-5 | IGN3 | ignition_out | corroborated | |
| OEM-A-29 | Ignition coil 2 (IGPLS2) | ignition_out | M800-A-4 | IGN2 | ignition_out | corroborated | |
| OEM-A-3 | Ignition power 1 (IGP1) | power_in | M800-A-26 | VBAT Battery Positive | power_in | corroborated | |
| OEM-A-30 | Ignition coil 1 (IGPLS1) | ignition_out | M800-A-3 | IGN1 | ignition_out | corroborated | |
| OEM-A-4 | Power ground 2 (PG2) | ground | M800-A-10 + M800-A-11 | GND Battery Negative + GND Battery Negative | ground | corroborated | |
| OEM-A-5 | Power ground 1 (PG1) | ground | M800-A-10 + M800-A-11 | GND Battery Negative + GND Battery Negative | ground | corroborated | |
| OEM-A-6 | A/F sensor + (AFS+, wideband Ip) | wb_ip | M800-B-26 | Lambda1 Pump Current | wb_ip | single_source | |
| OEM-A-7 | Crank position sensor (CKP) | trigger_in | M800-B-1 | Crank Reference Timing Input | trigger_in | corroborated | |
| OEM-A-9 | Knock sensor (KS) | knock_in | — | — | — | corroborated | |
| OEM-B-1 | VTC oil control solenoid (+) | low_side_out | M800-A-28 | INJ6 | injector_out | corroborated | |
| OEM-B-10 | Alternator L signal (ALTL) | digital_in | M800-B-9 | Digital Input 2 | digital_in | single_source | |
| OEM-B-13 | Alternator FR signal (ALTF) | analog_in | M800-A-17 | Analog Voltage Input 4 | analog_in | single_source | |
| OEM-B-15 | VTEC solenoid (VTS) | low_side_out | M800-A-27 | INJ5 | injector_out | single_source | |
| OEM-B-17 | Intake air temp sensor (IAT) | temp_in | M800-B-4 | Analog Temperature Input 2 | temp_in | corroborated | |
| OEM-B-18 | Alternator control (ALTC) | low_side_out | M800-A-29 | INJ7 | injector_out | corroborated | |
| OEM-B-2 | Injector 4 (INJ4) | injector_out | M800-A-22 | INJ4 | injector_out | corroborated | |
| OEM-B-21 | Evap canister purge valve (PCS) | low_side_out | M800-A-30 | INJ8 | injector_out | corroborated | |
| OEM-B-23 | VTC oil control solenoid (-) | low_side_out | — | — | — | corroborated | |
| OEM-B-3 | Injector 3 (INJ3) | injector_out | M800-A-21 | INJ3 | injector_out | corroborated | |
| OEM-B-4 | Injector 2 (INJ2) | injector_out | M800-A-20 | INJ2 | injector_out | corroborated | |
| OEM-B-5 | Injector 1 (INJ1) | injector_out | M800-A-19 | INJ1 | injector_out | corroborated | |
| OEM-B-6 | Radiator fan control (FANC) | low_side_out | M800-A-1 | AUX2 | switch_out | corroborated | |
| OEM-B-7 | Reverse lockout solenoid (RVS, Type-S) | low_side_out | — | — | — | corroborated | |
| OEM-B-8 | Coolant temp sensor (ECT) | temp_in | M800-B-3 | Analog Temperature Input 1 | temp_in | corroborated | |
| OEM-B-9 | VTEC oil pressure switch (VTPSW) | digital_in | M800-B-10 | Digital Input 3 | digital_in | corroborated | |
| OEM-E-1 | Immobilizer fuel pump relay (IMO FPR) | low_side_out | M800-A-23 | AUX3 | switch_out | corroborated | |
| OEM-E-14 | Fuel tank pressure sensor (FTP) | analog_in | M800-A-25 | Analog Voltage Input 5 | analog_in | corroborated | |
| OEM-E-15 | Electrical load detector (ELD) | analog_in | M800-B-20 | Analog Voltage Input 6 | analog_in | corroborated | |
| OEM-E-16 | Power steering pressure switch (PSPSW) | digital_in | M800-B-11 | Digital Input 4 | digital_in | corroborated | |
| OEM-E-18 | A/C clutch relay (ACC) | low_side_out | M800-A-24 | AUX4 | switch_out | corroborated | |
| OEM-E-2 | Secondary heated O2 sensor (SHO2S) | lambda_nb_in | M800-A-16 | Analog Voltage Input 3 | analog_in | corroborated | |
| OEM-E-20 | Brake switch / interlock (2WBS) | digital_in | M800-B-21 | AV7 | analog_in | single_source | |
| OEM-E-21 | Evap vent shut valve (VSV) | low_side_out | — | — | — | corroborated | |
| OEM-E-22 | Brake switch (BKSW) | digital_in | M800-B-22 | AV8 | analog_in | corroborated | |
| OEM-E-23 | K-line (diagnostic) | serial | — | — | — | single_source | |
| OEM-E-24 | Multiplex communication (SEFMJ) | serial | — | — | — | corroborated | |
| OEM-E-26 | Engine speed pulse / tacho (NEP) | tacho_out | — | — | — | corroborated | |
| OEM-E-27 | Immobilizer code (IMOCD) | — | — | — | — | single_source | |
| OEM-E-29 | Service check signal (SCS) | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 (LG3) | ground | M800-A-10 + M800-A-11 | GND Battery Negative + GND Battery Negative | ground | corroborated | |
| OEM-E-30 | Write enable signal (WEN) | — | — | — | — | single_source | |
| OEM-E-31 | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | corroborated | |
| OEM-E-4 | Sensor ground 3 (SG3) | sensor_ground | M800-B-14 + M800-B-15 + M800-B-16 | 0V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supply | sensor_ground | corroborated | |
| OEM-E-5 | Sensor 5V supply 3 (VCC3) | vref | M800-A-2 | 5V Engine Sensor Supply | vref | corroborated | |
| OEM-E-6 | Secondary O2 heater control (SO2SHTC) | low_side_out | M800-A-32 | AUX6 | switch_out | corroborated | |
| OEM-E-7 | Main relay control (MRLY) | low_side_out | M800-A-18 | AUX1 | switch_out | corroborated | |
| OEM-E-8 | A/F sensor heater relay control (AFSHTCR) | low_side_out | M800-A-31 | AUX5 | switch_out | corroborated | |
| OEM-E-9 | Ignition switch signal (IG1) | digital_in | — | — | — | corroborated |
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 | M800-A-26 | 0.85 | no route | VBAT Battery Positive | — | |
| W4 | OEM-A-23 | SP-GND-1 | 0.85 | no route | Logic ground 2 (LG2) | — | |
| W5 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Logic ground 1 (LG1) | — | |
| W6 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 (PG2) | — | |
| W7 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 (PG1) | — | |
| W8 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 (LG3) | — | |
| W9 | SP-GND-1 | M800-A-10 | 0.85 | no route | GND Battery Negative | — | |
| W10 | SP-GND-1 | M800-A-11 | 0.85 | no route | GND Battery Negative | — | |
| W11 | OEM-A-10 | SP-0V-1 | 0.5 | no route | Sensor ground 2 (SG2) | — | |
| W12 | OEM-A-11 | SP-0V-1 | 0.5 | no route | Sensor ground 1 (SG1) | — | |
| W13 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 (SG3) | — | |
| W14 | SP-0V-1 | M800-B-14 | 0.5 | no route | 0V Comms Reference | — | |
| W15 | SP-0V-1 | M800-B-15 | 0.5 | no route | 0V Auxiliary Sensor Supply | — | |
| W16 | SP-0V-1 | M800-B-16 | 0.5 | no route | 0V Engine Sensor Supply | — | |
| W17 | OEM-A-20 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 2 (VCC2) | — | |
| W18 | OEM-E-5 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply 3 (VCC3) | — | |
| W19 | SP-5V1-1 | M800-A-2 | 0.5 | no route | 5V Engine Sensor Supply | — | |
| W20 | OEM-A-21 | M800-A-9 | 0.5 | no route | Sensor 5V supply 1 (VCC1) | — | |
| W21 | OEM-A-7 | M800-B-1 | 0.5 | no route | Crank position sensor (CKP) | — | |
| W22 | OEM-A-25 | M800-B-2 | 0.5 | no route | Camshaft position A (CMP A) | — | |
| W23 | OEM-A-30 | M800-A-3 | 0.5 | no route | Ignition coil 1 (IGPLS1) | — | |
| W24 | OEM-A-29 | M800-A-4 | 0.5 | no route | Ignition coil 2 (IGPLS2) | — | |
| W25 | OEM-A-28 | M800-A-5 | 0.5 | no route | Ignition coil 3 (IGPLS3) | — | |
| W26 | OEM-A-27 | M800-A-6 | 0.5 | no route | Ignition coil 4 (IGPLS4) | — | |
| W27 | OEM-B-5 | M800-A-19 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W28 | OEM-B-4 | M800-A-20 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W29 | OEM-B-3 | M800-A-21 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W30 | OEM-B-2 | M800-A-22 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W31 | OEM-E-7 | M800-A-18 | 0.5 | no route | Main relay control (MRLY) | — | |
| W32 | OEM-B-6 | M800-A-1 | 0.5 | no route | Radiator fan control (FANC) | — | |
| W33 | OEM-E-1 | M800-A-23 | 0.5 | no route | Immobilizer fuel pump relay (IMO FPR) | — | |
| W34 | OEM-E-18 | M800-A-24 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W35 | OEM-E-8 | M800-A-31 | 0.5 | no route | A/F sensor heater relay control (AFSHTCR) | — | |
| W36 | OEM-E-6 | M800-A-32 | 0.5 | no route | Secondary O2 heater control (SO2SHTC) | — | |
| W37 | OEM-A-1 | M800-A-33 | 0.5 | no route | A/F sensor heater control (AFSHTC) | — | |
| W38 | OEM-A-12 | M800-A-34 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W39 | OEM-B-15 | M800-A-27 | 0.5 | no route | VTEC solenoid (VTS) | — | |
| W40 | OEM-B-1 | M800-A-28 | 0.5 | no route | VTC oil control solenoid (+) | — | |
| W41 | OEM-B-18 | M800-A-29 | 0.5 | no route | Alternator control (ALTC) | — | |
| W42 | OEM-B-21 | M800-A-30 | 0.5 | no route | Evap canister purge valve (PCS) | — | |
| W43 | OEM-A-6 | M800-B-26 | 0.5 | no route | A/F sensor + (AFS+, wideband Ip) | — | |
| W44 | OEM-A-16 | M800-B-25 | 0.5 | no route | A/F sensor - (AFS-, wideband Vs) | — | |
| W45 | OEM-A-19 | M800-A-14 | 0.5 | no route | Manifold absolute pressure (MAP) | — | |
| W46 | OEM-A-15 | M800-A-15 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W47 | OEM-E-2 | M800-A-16 | 0.5 | no route | Secondary heated O2 sensor (SHO2S) | — | |
| W48 | OEM-B-8 | M800-B-3 | 0.5 | no route | Coolant temp sensor (ECT) | — | |
| W49 | OEM-B-17 | M800-B-4 | 0.5 | no route | Intake air temp sensor (IAT) | — | |
| W50 | OEM-B-13 | M800-A-17 | 0.5 | no route | Alternator FR signal (ALTF) | — | |
| W51 | OEM-E-14 | M800-A-25 | 0.5 | no route | Fuel tank pressure sensor (FTP) | — | |
| W52 | OEM-E-15 | M800-B-20 | 0.5 | no route | Electrical load detector (ELD) | — | |
| W53 | OEM-A-18 | M800-B-8 | 0.5 | no route | Vehicle speed sensor (VSS, M/T) | — | |
| W54 | OEM-B-10 | M800-B-9 | 0.5 | no route | Alternator L signal (ALTL) | — | |
| W55 | OEM-B-9 | M800-B-10 | 0.5 | no route | VTEC oil pressure switch (VTPSW) | — | |
| W56 | OEM-E-16 | M800-B-11 | 0.5 | no route | Power steering pressure switch (PSPSW) | — | |
| W57 | OEM-E-20 | M800-B-21 | 0.5 | no route | Brake switch / interlock (2WBS) | — | |
| W58 | OEM-E-22 | M800-B-22 | 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 | 3-1437290-7 | TE | Superseal 1.0 26-way plug | 1.000 | ea |
| connector | 353029-1 | TE | K-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P) | 1.000 | ea |
| connector | 353826-1 | TE | K-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P) | 1.000 | ea |
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 46.000 | ea |
| terminal | 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 51.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (31)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-A-26 | Required OEM function "Camshaft position B (CMP B)" (trigger_in) is not connected to the new ECU. |
| warn | DATASET_GAP | RSX ECU A | 5 of 31 cavities on RSX ECU A have no pin data (8,13,14,17,31). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU B | 8 of 24 cavities on RSX ECU B have no pin data (11,12,14,16,19,20,22,24). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU E | 8 of 31 cavities on RSX ECU E have no pin data (10,11,12,13,17,19,25,28). Anything there is invisible to these checks. |
| warn | LOAD_UNKNOWN | M800-A-1 | M800-A-1 "AUX2" drives OEM-B-6 Radiator fan control (FANC) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-18 | M800-A-18 "AUX1" drives OEM-E-7 Main relay control (MRLY) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-19 | M800-A-19 "INJ1" drives OEM-B-5 Injector 1 (INJ1) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-20 | M800-A-20 "INJ2" drives OEM-B-4 Injector 2 (INJ2) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-21 | M800-A-21 "INJ3" drives OEM-B-3 Injector 3 (INJ3) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-22 | M800-A-22 "INJ4" drives OEM-B-2 Injector 4 (INJ4) (load 1.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-23 | M800-A-23 "AUX3" drives OEM-E-1 Immobilizer fuel pump relay (IMO FPR) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-24 | M800-A-24 "AUX4" drives OEM-E-18 A/C clutch relay (ACC) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-27 | M800-A-27 "INJ5" drives OEM-B-15 VTEC solenoid (VTS) (load 1.0 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-31 | M800-A-31 "AUX5" drives OEM-E-8 A/F sensor heater relay control (AFSHTCR) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | M800-A-34 | M800-A-34 "AUX8" drives OEM-A-12 Idle air control valve (IACV) (load 1.0 A) but its current rating is unknown. Check the ECU manual. |
| warn | NET_FAMILY | OEM-E-20 ↔ M800-B-21 | OEM-E-20 "Brake switch / interlock (2WBS)" [digital_in] is wired to M800-B-21 "AV7" [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 ↔ M800-B-22 | OEM-E-22 "Brake switch (BKSW)" [digital_in] is wired to M800-B-22 "AV8" [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 | M800-A-2 + OEM-A-20 + OEM-E-5 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-A-20 [k_vcc2], OEM-E-5 [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 | NET_FAMILY | OEM-A-1 ↔ M800-A-33 | OEM-A-1 "A/F sensor heater control (AFSHTC)" [low_side_out] is wired to M800-A-33 "AUX7" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-12 ↔ M800-A-34 | OEM-A-12 "Idle air control valve (IACV)" [low_side_out] is wired to M800-A-34 "AUX8" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-B-1 ↔ M800-A-28 | OEM-B-1 "VTC oil control solenoid (+)" [low_side_out] is wired to M800-A-28 "INJ6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-15 ↔ M800-A-27 | OEM-B-15 "VTEC solenoid (VTS)" [low_side_out] is wired to M800-A-27 "INJ5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-18 ↔ M800-A-29 | OEM-B-18 "Alternator control (ALTC)" [low_side_out] is wired to M800-A-29 "INJ7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-21 ↔ M800-A-30 | OEM-B-21 "Evap canister purge valve (PCS)" [low_side_out] is wired to M800-A-30 "INJ8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-6 ↔ M800-A-1 | OEM-B-6 "Radiator fan control (FANC)" [low_side_out] is wired to M800-A-1 "AUX2" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E-1 ↔ M800-A-23 | OEM-E-1 "Immobilizer fuel pump relay (IMO FPR)" [low_side_out] is wired to M800-A-23 "AUX3" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E-18 ↔ M800-A-24 | OEM-E-18 "A/C clutch relay (ACC)" [low_side_out] is wired to M800-A-24 "AUX4" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E-6 ↔ M800-A-32 | OEM-E-6 "Secondary O2 heater control (SO2SHTC)" [low_side_out] is wired to M800-A-32 "AUX6" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E-7 ↔ M800-A-18 | OEM-E-7 "Main relay control (MRLY)" [low_side_out] is wired to M800-A-18 "AUX1" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E-8 ↔ M800-A-31 | OEM-E-8 "A/F sensor heater relay control (AFSHTCR)" [low_side_out] is wired to M800-A-31 "AUX5" [switch_out]. Configure this output as low side. |
| info | UNMAPPED | OEM | 13 optional OEM pins are not mapped: OEM-A-22 A/F sensor heater supply (AFSHTC+); OEM-A-9 Knock sensor (KS); OEM-B-23 VTC oil control solenoid (-); OEM-B-7 Reverse lockout solenoid (RVS, Type-S); OEM-E-21 Evap vent shut valve (VSV); OEM-E-23 K-line (diagnostic); OEM-E-24 Multiplex communication (SEFMJ); OEM-E-26 Engine speed pulse / tacho (NEP); OEM-E-27 Immobilizer code (IMOCD); OEM-E-29 Service check signal (SCS); OEM-E-30 Write enable signal (WEN); OEM-E-31 Malfunction indicator lamp (MIL); OEM-E-9 Ignition switch signal (IG1) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Open items: - OEM-A 26: Camshaft position B (CMP B): no free cam_hall/cam_vr/frequency_in input on MoTeC M800 Not wired: - OEM-A 9: Knock sensor (KS): no free knock input on MoTeC M800 - OEM-E 9: 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); MoTeC M800 has no dedicated key-on input - OEM-B 23: VTC oil control solenoid (-): no free low_side/ls_hs/injector/hbridge on MoTeC M800 - OEM-B 7: Reverse lockout solenoid (RVS, Type-S): no free low_side/ls_hs/injector/hbridge on MoTeC M800 - OEM-E 21: Evap vent shut valve (VSV): no free low_side/ls_hs/injector/hbridge on MoTeC M800 - OEM-E 31: Malfunction indicator lamp (MIL): no free low_side/ls_hs/injector/hbridge on MoTeC M800 - OEM-E 26: Engine speed pulse / tacho (NEP): no free tacho/frequency_out/low_side/ls_hs on MoTeC M800 - OEM-A 22: A/F sensor heater supply (AFSHTC+): no free heater_feed on MoTeC M800 - OEM-E 23: K-line (diagnostic): no free k_line on MoTeC M800 - OEM-E 24: Multiplex communication (SEFMJ): no free k_line on MoTeC M800 - 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 | Link: CIVICLink K20X (HC20X) DC5 installation manual | https://linkecu.com/documentation/237-4000%20DC5.pdf | archive | 2026-10-05 | 8a1a71301571 |
| 4 | vendor_doc | MoTeC M400/M600/M800/M880 Manual — Appendix L: Pin list by Function | https://starracecars.com/wp-content/uploads/resources/M400_M600_M800_M880_Manual_A5.pdf | archive | 2026-10-05 | b69bb8ffb674 |
| 4 | vendor_doc | MoTeC M800 OEM WRX56 Installation | https://motec.com.au | archive | 2026-10-05 | 2ca4be92bb65 |
| 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 |