Lexus SC400 1998-2000 (1UZ-FE VVT-i) → MoTeC M170 13170 (auto)
Lexus SC400 1998-2000 (1UZ-FE VVT-i) — MoTeC — M170
⚠ 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 | 1: read the Findings page before cutting any wire |
| Size of the job | 61 wires · 9 connectors · 0 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-E15-16 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E15-7 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E15-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | M170-A-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | M170-A-32 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-14V-1 | M170-A-41 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E15-1 | M170-A-54 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E13-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-E14-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | M170-A-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | M170-A-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | M170-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | M170-A-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | M170-A-21 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E13-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E13-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | M170-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | M170-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E13-2 | M170-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E14-23 | M170-A-49 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E14-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E14-10 | M170-A-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E13-16 | M170-A-46 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E13-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E13-15 | M170-A-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E13-23 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E14-18 | M170-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E14-17 | M170-A-60 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E14-11 | M170-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E14-12 | M170-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E14-13 | M170-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E14-14 | M170-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E14-15 | M170-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E14-16 | M170-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E14-25 | M170-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E14-26 | M170-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E13-5 | M170-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E13-6 | M170-A-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E14-1 | M170-A-50 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E14-2 | M170-A-51 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E14-3 | M170-A-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E14-4 | M170-A-66 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E14-5 | M170-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E14-6 | M170-A-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E14-7 | M170-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E14-8 | M170-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E11-19 | M170-A-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E14-20 | M170-A-62 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E13-10 | M170-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E13-13 | M170-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E13-21 | M170-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E13-20 | M170-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E13-9 | M170-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E13-14 | M170-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E11-18 | M170-A-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E11-27 | M170-A-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E13-11 | M170-A-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E13-22 | M170-A-38 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E14-27 | M170-A-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E14-28 | M170-A-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E11-17 | M170-A-13 | 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 | M170-A-11 | M170-A-16 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 2 | M170-A-11 | M170-A-23 | open (OL) | sensor ground must not touch +12 V supply | |
| 3 | M170-A-11 | M170-A-54 | open (OL) | sensor ground must not touch +12 V supply | |
| 4 | M170-A-14 | M170-A-16 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | M170-A-14 | M170-A-23 | open (OL) | power ground must not touch +12 V supply | |
| 6 | M170-A-14 | M170-A-54 | open (OL) | power ground must not touch +12 V supply | |
| 7 | M170-A-16 | M170-A-23 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 8 | M170-A-16 | M170-A-54 | open (OL) | 5 V sensor reference must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
M170-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Low Side Ignition 1 | — | W29 | — | 0.5 | OEM-E14-11 | — | — | — |
| 10 | Low Side Ignition 4 | — | W32 | — | 0.5 | OEM-E14-14 | — | — | — |
| 11 | Sensor 0V A | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Analogue Voltage Input 5 | — | W53 | — | 0.5 | OEM-E13-9 | — | — | — |
| 13 | Universal Digital Input 7 | — | W61 | — | 0.5 | OEM-E11-17 | — | — | — |
| 14 | Battery Negative 1 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Battery Negative 2 | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 16 | Sensor 5.0V A | — | W19 | — | 0.5 | OEM-E13-2 | — | — | — |
| 17 | Low Side Ignition 5 | — | W33 | — | 0.5 | OEM-E14-15 | — | — | — |
| 18 | Analogue Voltage Input 2 | — | W50 | — | 0.5 | OEM-E13-13 | — | — | — |
| 19 | Battery Negative 3 | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Low Side Ignition 8 | — | W36 | — | 0.5 | OEM-E14-26 | — | — | — |
| 20 | Battery Negative 4 | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Battery Negative 5 | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Universal Digital Input 8 | — | — | — | — | — | — | — | — |
| 23 | Battery Positive | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | Peak Hold Injector 5 | — | W43 | — | 0.5 | OEM-E14-5 | — | — | — |
| 25 | Low Side Ignition 6 | — | W34 | — | 0.5 | OEM-E14-16 | — | — | — |
| 26 | Analogue Voltage Input 1 | — | W49 | — | 0.5 | OEM-E13-10 | — | — | — |
| 27 | Sensor 0V B | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Analogue Temperature Input 1 | — | W54 | — | 0.5 | OEM-E13-14 | — | — | — |
| 29 | Knock Input 1 | — | W27 | — | 0.5 | OEM-E14-18 | — | — | — |
| 3 | Low Side Ignition 7 | — | W35 | — | 0.5 | OEM-E14-25 | — | — | — |
| 30 | Analogue Temperature Input 3 | — | — | — | — | — | — | — | — |
| 31 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 32 | Battery Positive | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Peak Hold Injector 1 | — | W37 | — | 0.5 | OEM-E13-5 | — | — | — |
| 34 | Sensor 5.0V B | — | — | — | — | — | — | — | — |
| 35 | Analogue Voltage Input 7 | — | W56 | — | 0.5 | OEM-E11-27 | — | — | — |
| 36 | Analogue Voltage Input 6 | — | W55 | — | 0.5 | OEM-E11-18 | — | — | — |
| 37 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 38 | Analogue Temperature Input 2 | — | W58 | — | 0.5 | OEM-E13-22 | — | — | — |
| 39 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 4 | Low Side Ignition 3 | — | W31 | — | 0.5 | OEM-E14-13 | — | — | — |
| 40 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 41 | Battery Positive | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
| 42 | Peak Hold Injector 6 | — | W44 | — | 0.5 | OEM-E14-6 | — | — | — |
| 43 | Low Side Injector 1 | — | W38 | — | 0.5 | OEM-E13-6 | — | — | — |
| 44 | Analogue Voltage Input 8 | — | W57 | — | 0.5 | OEM-E13-11 | — | — | — |
| 45 | Universal Digital Input 4 | — | W25 | — | 0.5 | OEM-E13-15 | — | — | — |
| 46 | Universal Digital Input 3 | — | W23 | — | 0.5 | OEM-E13-16 | — | — | — |
| 47 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 48 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 49 | Universal Digital Input 1 | — | W20 | — | 0.5 | OEM-E14-23 | — | — | — |
| 5 | Low Side Ignition 2 | — | W30 | — | 0.5 | OEM-E14-12 | — | — | — |
| 50 | Peak Hold Injector 2 | — | W39 | — | 0.5 | OEM-E14-1 | — | — | — |
| 51 | Low Side Injector 2 | — | W40 | — | 0.5 | OEM-E14-2 | — | — | — |
| 52 | Universal Digital Input 5 | — | W59 | — | 0.5 | OEM-E14-27 | — | — | — |
| 53 | Universal Digital Input 6 | — | W60 | — | 0.5 | OEM-E14-28 | — | — | — |
| 54 | Battery Backup | — | W7 | — | 0.85 | OEM-E15-1 | — | — | — |
| 55 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 56 | Universal Digital Input 2 | — | W22 | — | 0.5 | OEM-E14-10 | — | — | — |
| 57 | Peak Hold Injector 7 | — | W47 | — | 0.5 | OEM-E11-19 | — | — | — |
| 58 | Half Bridge Output 5 | — | — | — | — | — | — | — | — |
| 59 | Half Bridge Output 3 | — | — | — | — | — | — | — | — |
| 6 | Analogue Voltage Input 3 | — | W51 | — | 0.5 | OEM-E13-21 | — | — | — |
| 60 | Knock Input 2 | — | W28 | — | 0.5 | OEM-E14-17 | — | — | — |
| 61 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 62 | Peak Hold Injector 8 | — | W48 | — | 0.5 | OEM-E14-20 | — | — | — |
| 63 | Peak Hold Injector 3 | — | W41 | — | 0.5 | OEM-E14-3 | — | — | — |
| 64 | Half Bridge Output 6 | — | — | — | — | — | — | — | — |
| 65 | Half Bridge Output 4 | — | — | — | — | — | — | — | — |
| 66 | Peak Hold Injector 4 | — | W42 | — | 0.5 | OEM-E14-4 | — | — | — |
| 7 | Analogue Voltage Input 4 | — | W52 | — | 0.5 | OEM-E13-20 | — | — | — |
| 8 | Half Bridge Output 2 | — | W45 | — | 0.5 | OEM-E14-7 | — | — | — |
| 9 | Half Bridge Output 1 | — | W46 | — | 0.5 | OEM-E14-8 | — | — | — |
OEM-E11
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 17 | Starter signal (STA) | — | W61 | — | 0.5 | M170-A-13 | — | — | — |
| 18 | O2 sensor signal (bank unconfirmed) | — | W55 | — | 0.5 | M170-A-36 | — | — | — |
| 19 | VVT oil-control valve RH (OCR+) | — | W47 | — | 0.5 | M170-A-57 | — | — | — |
| 27 | O2 sensor signal (bank unconfirmed) | — | W56 | — | 0.5 | M170-A-35 | — | — | — |
| 28 | VVT oil-control valve RH (OCR−) | — | — | — | — | — | — | — | — |
| 5 | Diagnostic test (TC) | — | — | — | — | — | — | — | — |
| 7 | O2 sensor heater (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 8 | O2 sensor heater (bank unconfirmed) | — | — | — | — | — | — | — | — |
OEM-E12
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 12 | Throttle magnetic clutch + (CL+) | — | — | — | — | — | — | — | — |
OEM-E13
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | MAF signal (VG) | — | W49 | — | 0.5 | M170-A-26 | — | — | — |
| 11 | O2 sensor signal (bank unconfirmed) | — | W57 | — | 0.5 | M170-A-44 | — | — | — |
| 12 | O2 sensor signal (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 13 | Throttle position sensor 1 (VTA) | — | W50 | — | 0.5 | M170-A-18 | — | — | — |
| 14 | Engine coolant temp (THW) | — | W54 | — | 0.5 | M170-A-28 | — | — | — |
| 15 | VVT position sensor RH (VVR+) | — | W25 | — | 0.5 | M170-A-45 | — | — | — |
| 16 | VVT position sensor LH (VVL+) | — | W23 | — | 0.5 | M170-A-46 | — | — | — |
| 17 | ECU ground (E1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | +5V sensor reference (VC) | — | W19 | — | 0.5 | M170-A-16 | — | — | — |
| 20 | Throttle position sensor 2 (VTA2) | — | W52 | — | 0.5 | M170-A-7 | — | — | — |
| 21 | Accelerator pedal position 1 (VPA) | — | W51 | — | 0.5 | M170-A-6 | — | — | — |
| 22 | Intake air temp (THA) | — | W58 | — | 0.5 | M170-A-38 | — | — | — |
| 23 | VVT position sensor RH (VVR−) | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | VVT position sensor LH (VVL−) | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | O2 sensor heater (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 4 | O2 sensor heater (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 5 | Injector 1 (cyl 1) | — | W37 | — | 0.5 | M170-A-33 | — | — | — |
| 6 | Injector 2 (cyl 2) | — | W38 | — | 0.5 | M170-A-43 | — | — | — |
| 8 | Throttle magnetic clutch − (CL−) | — | — | — | — | — | — | — | — |
| 9 | Accelerator pedal position 2 (VPA2) | — | W53 | — | 0.5 | M170-A-12 | — | — | — |
OEM-E14
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (cyl 3) | — | W39 | — | 0.5 | M170-A-50 | — | — | — |
| 10 | Camshaft position sensor (G2) | — | W22 | — | 0.5 | M170-A-56 | — | — | — |
| 11 | Ignition coil 1 (IGT1) | — | W29 | — | 0.5 | M170-A-1 | — | — | — |
| 12 | Ignition coil 2 (IGT2) | — | W30 | — | 0.5 | M170-A-5 | — | — | — |
| 13 | Ignition coil 3 (IGT3) | — | W31 | — | 0.5 | M170-A-4 | — | — | — |
| 14 | Ignition coil 4 (IGT4) | — | W32 | — | 0.5 | M170-A-10 | — | — | — |
| 15 | Ignition coil 5 (IGT5) | — | W33 | — | 0.5 | M170-A-17 | — | — | — |
| 16 | Ignition coil 6 (IGT6) | — | W34 | — | 0.5 | M170-A-25 | — | — | — |
| 17 | Knock sensor RH (KNKR) | — | W28 | — | 0.5 | M170-A-60 | — | — | — |
| 18 | Knock sensor LH (KNKL) | — | W27 | — | 0.5 | M170-A-29 | — | — | — |
| 19 | VVT oil-control valve LH (OCV−) | — | — | — | — | — | — | — | — |
| 2 | Injector 4 (cyl 4) | — | W40 | — | 0.5 | M170-A-51 | — | — | — |
| 20 | VVT oil-control valve LH (OCV+) | — | W48 | — | 0.5 | M170-A-62 | — | — | — |
| 21 | Power/injector ground (E01) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position sensor (NE−) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position sensor (NE+) | — | W20 | — | 0.5 | M170-A-49 | — | — | — |
| 25 | Ignition coil 7 (IGT7) | — | W35 | — | 0.5 | M170-A-3 | — | — | — |
| 26 | Ignition coil 8 (IGT8) | — | W36 | — | 0.5 | M170-A-2 | — | — | — |
| 27 | Ignition confirmation 1 (IGF1) | — | W59 | — | 0.5 | M170-A-52 | — | — | — |
| 28 | Ignition confirmation 2 (IGF2) | — | W60 | — | 0.5 | M170-A-53 | — | — | — |
| 29 | ACIS induction VSV | — | — | — | — | — | — | — | — |
| 3 | Injector 5 (cyl 5) | — | W41 | — | 0.5 | M170-A-63 | — | — | — |
| 4 | Injector 6 (cyl 6) | — | W42 | — | 0.5 | M170-A-66 | — | — | — |
| 5 | Injector 7 (cyl 7) | — | W43 | — | 0.5 | M170-A-24 | — | — | — |
| 6 | Injector 8 (cyl 8) | — | W44 | — | 0.5 | M170-A-42 | — | — | — |
| 7 | Throttle motor − (M−) | — | W45 | — | 0.5 | M170-A-8 | — | — | — |
| 8 | Throttle motor + (M+) | — | W46 | — | 0.5 | M170-A-9 | — | — | — |
OEM-E15
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (+12V) | — | W7 | — | 0.85 | M170-A-54 | — | — | — |
| 10 | EFI main relay control (MREL) | — | — | — | — | — | — | — | — |
| 11 | OBD-II / DLC3 data (SIL) | — | — | — | — | — | — | — | — |
| 16 | ECM power (EFI relay +B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 5 | Fuel pump relay control (FC) | — | — | — | — | — | — | — | — |
| 6 | Check engine light (W) | — | — | — | — | — | — | — | — |
| 7 | ECM power feed (+BM) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 8 | ECM power (EFI relay +B1) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Ignition switch (+12V) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-E13-18 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-E13-19 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | M170-A-11 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | M170-A-27 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-E14-22 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | OEM-E13-24 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-E13-23 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E15-16 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E15-7 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-E15-8 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M170-A-23 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M170-A-32 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | M170-A-41 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | OEM-E13-17 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-E14-21 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | M170-A-14 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | M170-A-15 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | M170-A-19 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | M170-A-20 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | M170-A-21 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E11-17 | Starter signal (STA) | digital_in | M170-A-13 | Universal Digital Input 7 | digital_in | corroborated | |
| OEM-E11-18 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | M170-A-36 | Analogue Voltage Input 6 | analog_in | corroborated | |
| OEM-E11-19 | VVT oil-control valve RH (OCR+) | low_side_out | M170-A-57 | Peak Hold Injector 7 | injector_out | corroborated | |
| OEM-E11-27 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | M170-A-35 | Analogue Voltage Input 7 | analog_in | corroborated | |
| OEM-E11-28 | VVT oil-control valve RH (OCR−) | low_side_out | — | — | — | corroborated | |
| OEM-E11-5 | Diagnostic test (TC) | serial | — | — | — | corroborated | |
| OEM-E11-7 | O2 sensor heater (bank unconfirmed) | low_side_out | — | — | — | corroborated | |
| OEM-E11-8 | O2 sensor heater (bank unconfirmed) | low_side_out | — | — | — | corroborated | |
| OEM-E12-12 | Throttle magnetic clutch + (CL+) | low_side_out | — | — | — | corroborated | |
| OEM-E13-10 | MAF signal (VG) | analog_in | M170-A-26 | Analogue Voltage Input 1 | analog_in | corroborated | |
| OEM-E13-11 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | M170-A-44 | Analogue Voltage Input 8 | analog_in | corroborated | |
| OEM-E13-12 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | — | — | — | corroborated | |
| OEM-E13-13 | Throttle position sensor 1 (VTA) | analog_in | M170-A-18 | Analogue Voltage Input 2 | analog_in | corroborated | |
| OEM-E13-14 | Engine coolant temp (THW) | temp_in | M170-A-28 | Analogue Temperature Input 1 | temp_in | corroborated | |
| OEM-E13-15 | VVT position sensor RH (VVR+) | trigger_in | M170-A-45 | Universal Digital Input 4 | digital_in | corroborated | |
| OEM-E13-16 | VVT position sensor LH (VVL+) | trigger_in | M170-A-46 | Universal Digital Input 3 | digital_in | corroborated | |
| OEM-E13-17 | ECU ground (E1) | ground | M170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21 | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 | ground | corroborated | |
| OEM-E13-18 | Sensor ground (E2) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-E13-19 | MAF ground (EVG) | sensor_ground | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-E13-2 | +5V sensor reference (VC) | vref | M170-A-16 | Sensor 5.0V A | vref | corroborated | |
| OEM-E13-20 | Throttle position sensor 2 (VTA2) | analog_in | M170-A-7 | Analogue Voltage Input 4 | analog_in | corroborated | |
| OEM-E13-21 | Accelerator pedal position 1 (VPA) | analog_in | M170-A-6 | Analogue Voltage Input 3 | analog_in | corroborated | |
| OEM-E13-22 | Intake air temp (THA) | temp_in | M170-A-38 | Analogue Temperature Input 2 | temp_in | corroborated | |
| OEM-E13-23 | VVT position sensor RH (VVR−) | trigger_in | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-E13-24 | VVT position sensor LH (VVL−) | trigger_in | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-E13-3 | O2 sensor heater (bank unconfirmed) | low_side_out | — | — | — | corroborated | |
| OEM-E13-4 | O2 sensor heater (bank unconfirmed) | low_side_out | — | — | — | corroborated | |
| OEM-E13-5 | Injector 1 (cyl 1) | injector_out | M170-A-33 | Peak Hold Injector 1 | injector_out | corroborated | |
| OEM-E13-6 | Injector 2 (cyl 2) | injector_out | M170-A-43 | Low Side Injector 1 | injector_out | corroborated | |
| OEM-E13-8 | Throttle magnetic clutch − (CL−) | low_side_out | — | — | — | corroborated | |
| OEM-E13-9 | Accelerator pedal position 2 (VPA2) | analog_in | M170-A-12 | Analogue Voltage Input 5 | analog_in | corroborated | |
| OEM-E14-1 | Injector 3 (cyl 3) | injector_out | M170-A-50 | Peak Hold Injector 2 | injector_out | corroborated | |
| OEM-E14-10 | Camshaft position sensor (G2) | trigger_in | M170-A-56 | Universal Digital Input 2 | digital_in | corroborated | |
| OEM-E14-11 | Ignition coil 1 (IGT1) | ignition_out | M170-A-1 | Low Side Ignition 1 | ignition_out | corroborated | |
| OEM-E14-12 | Ignition coil 2 (IGT2) | ignition_out | M170-A-5 | Low Side Ignition 2 | ignition_out | corroborated | |
| OEM-E14-13 | Ignition coil 3 (IGT3) | ignition_out | M170-A-4 | Low Side Ignition 3 | ignition_out | corroborated | |
| OEM-E14-14 | Ignition coil 4 (IGT4) | ignition_out | M170-A-10 | Low Side Ignition 4 | ignition_out | corroborated | |
| OEM-E14-15 | Ignition coil 5 (IGT5) | ignition_out | M170-A-17 | Low Side Ignition 5 | ignition_out | corroborated | |
| OEM-E14-16 | Ignition coil 6 (IGT6) | ignition_out | M170-A-25 | Low Side Ignition 6 | ignition_out | corroborated | |
| OEM-E14-17 | Knock sensor RH (KNKR) | knock_in | M170-A-60 | Knock Input 2 | knock_in | corroborated | |
| OEM-E14-18 | Knock sensor LH (KNKL) | knock_in | M170-A-29 | Knock Input 1 | knock_in | corroborated | |
| OEM-E14-19 | VVT oil-control valve LH (OCV−) | low_side_out | — | — | — | corroborated | |
| OEM-E14-2 | Injector 4 (cyl 4) | injector_out | M170-A-51 | Low Side Injector 2 | injector_out | corroborated | |
| OEM-E14-20 | VVT oil-control valve LH (OCV+) | low_side_out | M170-A-62 | Peak Hold Injector 8 | injector_out | corroborated | |
| OEM-E14-21 | Power/injector ground (E01) | ground | M170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21 | Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 | ground | corroborated | |
| OEM-E14-22 | Crank position sensor (NE−) | trigger_in | M170-A-11 + M170-A-27 | Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-E14-23 | Crank position sensor (NE+) | trigger_in | M170-A-49 | Universal Digital Input 1 | digital_in | corroborated | |
| OEM-E14-25 | Ignition coil 7 (IGT7) | ignition_out | M170-A-3 | Low Side Ignition 7 | ignition_out | corroborated | |
| OEM-E14-26 | Ignition coil 8 (IGT8) | ignition_out | M170-A-2 | Low Side Ignition 8 | ignition_out | corroborated | |
| OEM-E14-27 | Ignition confirmation 1 (IGF1) | digital_in | M170-A-52 | Universal Digital Input 5 | digital_in | corroborated | |
| OEM-E14-28 | Ignition confirmation 2 (IGF2) | digital_in | M170-A-53 | Universal Digital Input 6 | digital_in | corroborated | |
| OEM-E14-29 | ACIS induction VSV | low_side_out | — | — | — | corroborated | |
| OEM-E14-3 | Injector 5 (cyl 5) | injector_out | M170-A-63 | Peak Hold Injector 3 | injector_out | corroborated | |
| OEM-E14-4 | Injector 6 (cyl 6) | injector_out | M170-A-66 | Peak Hold Injector 4 | injector_out | corroborated | |
| OEM-E14-5 | Injector 7 (cyl 7) | injector_out | M170-A-24 | Peak Hold Injector 5 | injector_out | corroborated | |
| OEM-E14-6 | Injector 8 (cyl 8) | injector_out | M170-A-42 | Peak Hold Injector 6 | injector_out | corroborated | |
| OEM-E14-7 | Throttle motor − (M−) | hbridge_out | M170-A-8 | Half Bridge Output 2 | hbridge_out | corroborated | |
| OEM-E14-8 | Throttle motor + (M+) | hbridge_out | M170-A-9 | Half Bridge Output 1 | hbridge_out | corroborated | |
| OEM-E15-1 | Battery constant (+12V) | power_in | M170-A-54 | Battery Backup | power_in | corroborated | |
| OEM-E15-10 | EFI main relay control (MREL) | low_side_out | — | — | — | corroborated | |
| OEM-E15-11 | OBD-II / DLC3 data (SIL) | serial | — | — | — | corroborated | |
| OEM-E15-16 | ECM power (EFI relay +B) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | corroborated | |
| OEM-E15-5 | Fuel pump relay control (FC) | low_side_out | — | — | — | corroborated | |
| OEM-E15-6 | Check engine light (W) | low_side_out | — | — | — | corroborated | |
| OEM-E15-7 | ECM power feed (+BM) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | corroborated | |
| OEM-E15-8 | ECM power (EFI relay +B1) | power_in | M170-A-23 + M170-A-32 + M170-A-41 | Battery Positive + Battery Positive + Battery Positive | power_in | corroborated | |
| OEM-E15-9 | Ignition switch (+12V) | digital_in | — | — | — | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E15-16 | SP-14V-1 | 0.85 | no route | ECM power (EFI relay +B) | — | |
| W2 | OEM-E15-7 | SP-14V-1 | 0.85 | no route | ECM power feed (+BM) | — | |
| W3 | OEM-E15-8 | SP-14V-1 | 0.85 | no route | ECM power (EFI relay +B1) | — | |
| W4 | SP-14V-1 | M170-A-23 | 0.85 | no route | Battery Positive | — | |
| W5 | SP-14V-1 | M170-A-32 | 0.85 | no route | Battery Positive | — | |
| W6 | SP-14V-1 | M170-A-41 | 0.85 | no route | Battery Positive | — | |
| W7 | OEM-E15-1 | M170-A-54 | 0.85 | no route | Battery constant (+12V) | — | |
| W8 | OEM-E13-17 | SP-GND-1 | 0.85 | no route | ECU ground (E1) | — | |
| W9 | OEM-E14-21 | SP-GND-1 | 0.85 | no route | Power/injector ground (E01) | — | |
| W10 | SP-GND-1 | M170-A-14 | 0.85 | no route | Battery Negative 1 | — | |
| W11 | SP-GND-1 | M170-A-15 | 0.85 | no route | Battery Negative 2 | — | |
| W12 | SP-GND-1 | M170-A-19 | 0.85 | no route | Battery Negative 3 | — | |
| W13 | SP-GND-1 | M170-A-20 | 0.85 | no route | Battery Negative 4 | — | |
| W14 | SP-GND-1 | M170-A-21 | 0.85 | no route | Battery Negative 5 | — | |
| W15 | OEM-E13-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W16 | OEM-E13-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W17 | SP-0V-1 | M170-A-11 | 0.5 | no route | Sensor 0V A | — | |
| W18 | SP-0V-1 | M170-A-27 | 0.5 | no route | Sensor 0V B | — | |
| W19 | OEM-E13-2 | M170-A-16 | 0.5 | no route | +5V sensor reference (VC) | — | |
| W20 | OEM-E14-23 | M170-A-49 | 0.5 | no route | Crank position sensor (NE+) | — | |
| W21 | OEM-E14-22 | SP-0V-1 | 0.5 | no route | Crank position sensor (NE−) | — | |
| W22 | OEM-E14-10 | M170-A-56 | 0.5 | no route | Camshaft position sensor (G2) | — | |
| W23 | OEM-E13-16 | M170-A-46 | 0.5 | no route | VVT position sensor LH (VVL+) | — | |
| W24 | OEM-E13-24 | SP-0V-1 | 0.5 | no route | VVT position sensor LH (VVL−) | — | |
| W25 | OEM-E13-15 | M170-A-45 | 0.5 | no route | VVT position sensor RH (VVR+) | — | |
| W26 | OEM-E13-23 | SP-0V-1 | 0.5 | no route | VVT position sensor RH (VVR−) | — | |
| W27 | OEM-E14-18 | M170-A-29 | 0.5 | no route | Knock sensor LH (KNKL) | — | |
| W28 | OEM-E14-17 | M170-A-60 | 0.5 | no route | Knock sensor RH (KNKR) | — | |
| W29 | OEM-E14-11 | M170-A-1 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W30 | OEM-E14-12 | M170-A-5 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W31 | OEM-E14-13 | M170-A-4 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W32 | OEM-E14-14 | M170-A-10 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W33 | OEM-E14-15 | M170-A-17 | 0.5 | no route | Ignition coil 5 (IGT5) | — | |
| W34 | OEM-E14-16 | M170-A-25 | 0.5 | no route | Ignition coil 6 (IGT6) | — | |
| W35 | OEM-E14-25 | M170-A-3 | 0.5 | no route | Ignition coil 7 (IGT7) | — | |
| W36 | OEM-E14-26 | M170-A-2 | 0.5 | no route | Ignition coil 8 (IGT8) | — | |
| W37 | OEM-E13-5 | M170-A-33 | 0.5 | no route | Injector 1 (cyl 1) | — | |
| W38 | OEM-E13-6 | M170-A-43 | 0.5 | no route | Injector 2 (cyl 2) | — | |
| W39 | OEM-E14-1 | M170-A-50 | 0.5 | no route | Injector 3 (cyl 3) | — | |
| W40 | OEM-E14-2 | M170-A-51 | 0.5 | no route | Injector 4 (cyl 4) | — | |
| W41 | OEM-E14-3 | M170-A-63 | 0.5 | no route | Injector 5 (cyl 5) | — | |
| W42 | OEM-E14-4 | M170-A-66 | 0.5 | no route | Injector 6 (cyl 6) | — | |
| W43 | OEM-E14-5 | M170-A-24 | 0.5 | no route | Injector 7 (cyl 7) | — | |
| W44 | OEM-E14-6 | M170-A-42 | 0.5 | no route | Injector 8 (cyl 8) | — | |
| W45 | OEM-E14-7 | M170-A-8 | 0.5 | no route | Throttle motor − (M−) | — | |
| W46 | OEM-E14-8 | M170-A-9 | 0.5 | no route | Throttle motor + (M+) | — | |
| W47 | OEM-E11-19 | M170-A-57 | 0.5 | no route | VVT oil-control valve RH (OCR+) | — | |
| W48 | OEM-E14-20 | M170-A-62 | 0.5 | no route | VVT oil-control valve LH (OCV+) | — | |
| W49 | OEM-E13-10 | M170-A-26 | 0.5 | no route | MAF signal (VG) | — | |
| W50 | OEM-E13-13 | M170-A-18 | 0.5 | no route | Throttle position sensor 1 (VTA) | — | |
| W51 | OEM-E13-21 | M170-A-6 | 0.5 | no route | Accelerator pedal position 1 (VPA) | — | |
| W52 | OEM-E13-20 | M170-A-7 | 0.5 | no route | Throttle position sensor 2 (VTA2) | — | |
| W53 | OEM-E13-9 | M170-A-12 | 0.5 | no route | Accelerator pedal position 2 (VPA2) | — | |
| W54 | OEM-E13-14 | M170-A-28 | 0.5 | no route | Engine coolant temp (THW) | — | |
| W55 | OEM-E11-18 | M170-A-36 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W56 | OEM-E11-27 | M170-A-35 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W57 | OEM-E13-11 | M170-A-44 | 0.5 | no route | O2 sensor signal (bank unconfirmed) | — | |
| W58 | OEM-E13-22 | M170-A-38 | 0.5 | no route | Intake air temp (THA) | — | |
| W59 | OEM-E14-27 | M170-A-52 | 0.5 | no route | Ignition confirmation 1 (IGF1) | — | |
| W60 | OEM-E14-28 | M170-A-53 | 0.5 | no route | Ignition confirmation 2 (IGF2) | — | |
| W61 | OEM-E11-17 | M170-A-13 | 0.5 | no route | Starter signal (STA) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (12)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-E15-9 | Required OEM function "Ignition switch (+12V)" (digital_in) is not connected to the new ECU. |
| warn | DBW_MOTOR_CURRENT | M170-A-8 | Cannot confirm M170 can drive the throttle motor: M170-A-8 "Half Bridge Output 2" is rated 12.0 A peak, but the motor stall current at OEM-E14-7 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_CURRENT | M170-A-9 | Cannot confirm M170 can drive the throttle motor: M170-A-9 "Half Bridge Output 1" is rated 12.0 A peak, but the motor stall current at OEM-E14-8 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | NET_FAMILY | OEM-E13-15 ↔ M170-A-45 | OEM-E13-15 "VVT position sensor RH (VVR+)" [trigger_in] is wired to M170-A-45 "Universal Digital Input 4" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-E13-16 ↔ M170-A-46 | OEM-E13-16 "VVT position sensor LH (VVL+)" [trigger_in] is wired to M170-A-46 "Universal Digital Input 3" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-E14-10 ↔ M170-A-56 | OEM-E14-10 "Camshaft position sensor (G2)" [trigger_in] is wired to M170-A-56 "Universal Digital Input 2" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-E14-23 ↔ M170-A-49 | OEM-E14-23 "Crank position sensor (NE+)" [trigger_in] is wired to M170-A-49 "Universal Digital Input 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NO_FUEL_PUMP | fuel pump | This engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car. |
| info | NET_FAMILY | OEM-E11-19 ↔ M170-A-57 | OEM-E11-19 "VVT oil-control valve RH (OCR+)" [low_side_out] is wired to M170-A-57 "Peak Hold Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E13-23 ↔ M170-A-27 | OEM-E13-23 "VVT position sensor RH (VVR−)" [trigger_in] is wired to M170-A-27 "Sensor 0V B" [sensor_ground]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-E14-20 ↔ M170-A-62 | OEM-E14-20 "VVT oil-control valve LH (OCV+)" [low_side_out] is wired to M170-A-62 "Peak Hold Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 15 optional OEM pins are not mapped: OEM-E11-28 VVT oil-control valve RH (OCR−); OEM-E11-5 Diagnostic test (TC); OEM-E11-7 O2 sensor heater (bank unconfirmed); OEM-E11-8 O2 sensor heater (bank unconfirmed); OEM-E12-12 Throttle magnetic clutch + (CL+); OEM-E13-12 O2 sensor signal (bank unconfirmed); OEM-E13-3 O2 sensor heater (bank unconfirmed); OEM-E13-4 O2 sensor heater (bank unconfirmed); OEM-E13-8 Throttle magnetic clutch − (CL−); OEM-E14-19 VVT oil-control valve LH (OCV−); OEM-E14-29 ACIS induction VSV; OEM-E15-10 EFI main relay control (MREL); OEM-E15-11 OBD-II / DLC3 data (SIL); OEM-E15-5 Fuel pump relay control (FC); OEM-E15-6 Check engine light (W) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-E15 9: Ignition switch (+12V): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MoTeC M170 has no dedicated key-on input Not wired: - OEM-E15 10: EFI main relay control (MREL): no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on MoTeC M170 - OEM-E15 5: Fuel pump relay control (FC): no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on MoTeC M170 - OEM-E11 7: O2 sensor heater (bank unconfirmed): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-E11 8: O2 sensor heater (bank unconfirmed): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-E13 3: O2 sensor heater (bank unconfirmed): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-E13 4: O2 sensor heater (bank unconfirmed): no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M170 - OEM-E11 28: VVT oil-control valve RH (OCR−): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-E12 12: Throttle magnetic clutch + (CL+): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-E13 8: Throttle magnetic clutch − (CL−): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-E14 19: VVT oil-control valve LH (OCV−): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-E14 29: ACIS induction VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-E15 6: Check engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M170 - OEM-E13 12: O2 sensor signal (bank unconfirmed): no free o2_narrowband/analog_0_5 on MoTeC M170 - OEM-E15 11: OBD-II / DLC3 data (SIL): no free k_line on MoTeC M170 - OEM-E11 5: Diagnostic test (TC): no free k_line on MoTeC M170
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | MoTeC: M1 ECU Hardware manual (7 Nov 2013) — M130/M150/M170/M190 pinout tables | https://web.archive.org/web/2023id_/https://www.motec.com.au/hessian/uploads/M1_ECU_Hardware_c2517380e4.pdf | — | 2026-10-05 | 03dc5975f739 |
| 4 | vendor_doc | Toyota 1UZ-FE (VVT-i) engine manual M1UZ | http://www.epicmarine.com/docs/M1UZrm.pdf | — | — | — |
| 3 | community_copy | 1998 Lexus LS400 ECM terminal voltage chart (RM717U translation) | https://www.renrendoc.com/p-59096353.html | — | — | — |