Lexus SC400 1998-2000 (1UZ-FE VVT-i) → Motorsport Electronics ME221 (auto)
Lexus SC400 1998-2000 (1UZ-FE VVT-i) — Motorsport Electronics — ME221
⚠ 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 | 11: read the Findings page before cutting any wire |
| Size of the job | 55 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 | ME221-C1-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | ME221-C1-64 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E13-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E14-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | ME221-C1-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | ME221-C1-61 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | ME221-C1-89 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | ME221-C1-90 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E13-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E13-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | ME221-C1-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | ME221-C1-84 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E13-2 | ME221-C1-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E14-23 | ME221-C1-80 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E14-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E14-10 | ME221-C1-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E13-16 | ME221-C1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E13-24 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E14-18 | ME221-C1-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E14-11 | ME221-C1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E14-12 | ME221-C1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E14-13 | ME221-C1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E14-14 | ME221-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E13-5 | ME221-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E13-6 | ME221-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E14-1 | ME221-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E14-2 | ME221-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E14-3 | ME221-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E14-4 | ME221-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E14-5 | ME221-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E14-6 | ME221-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E14-7 | ME221-C1-68 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E14-8 | ME221-C1-67 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E11-19 | ME221-C1-73 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E14-20 | ME221-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E13-10 | ME221-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E13-13 | ME221-C1-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E13-21 | ME221-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E13-20 | ME221-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E13-14 | ME221-C1-86 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E15-10 | ME221-C1-74 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E15-5 | ME221-C1-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E11-7 | ME221-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E11-8 | ME221-C1-69 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E13-3 | ME221-C1-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E13-4 | ME221-C1-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E11-28 | ME221-C1-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E12-12 | ME221-C1-72 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E13-8 | ME221-C1-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E13-22 | ME221-C1-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E14-27 | ME221-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E14-28 | ME221-C1-7 | 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 | ME221-C1-10 | ME221-C1-15 | open (OL) | power ground must not touch +12 V supply | |
| 2 | ME221-C1-10 | ME221-C1-45 | open (OL) | power ground must not touch 5 V sensor reference | |
| 3 | ME221-C1-45 | ME221-C1-15 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 4 | ME221-C1-52 | ME221-C1-15 | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | ME221-C1-52 | ME221-C1-45 | open (OL) | sensor ground 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
ME221-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | COIL 4 | — | W26 | — | 0.5 | OEM-E14-14 | — | — | — |
| 10 | GROUND CHASSIS | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | LOW SIDE 2 | — | W38 | — | 0.5 | OEM-E14-20 | — | — | — |
| 14 | LSU +12V | — | — | — | — | — | — | — | — |
| 15 | IGN +12V | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 16 | LSU HEATER -VE | — | W46 | — | 0.5 | OEM-E11-7 | — | — | — |
| 17 | ANA VOLT 3 | — | W41 | — | 0.5 | OEM-E13-21 | — | — | — |
| 18 | ANA VOLT 4 | — | W42 | — | 0.5 | OEM-E13-20 | — | — | — |
| 19 | LSU UN | — | — | — | — | — | — | — | — |
| 2 | COIL 3 | — | W25 | — | 0.5 | OEM-E14-13 | — | — | — |
| 20 | LSU VM | — | — | — | — | — | — | — | — |
| 21 | CAN 1 HIGH | — | — | — | — | — | — | — | — |
| 22 | CAM A VR+ | — | W19 | — | 0.5 | OEM-E14-10 | — | — | — |
| 23 | CAM A VR- | — | W20 | — | 0.5 | OEM-E13-16 | — | — | — |
| 24 | SERIAL 1 GROUND | — | — | — | — | — | — | — | — |
| 25 | SERIAL 1 TX | — | — | — | — | — | — | — | — |
| 26 | ANA VOLT 1 | — | W39 | — | 0.5 | OEM-E13-10 | — | — | — |
| 3 | INJECTOR 4 | — | W30 | — | 0.5 | OEM-E14-2 | — | — | — |
| 3 | INJECTOR 4 | — | W34 | — | 0.5 | OEM-E14-6 | — | — | — |
| 31 | COIL 2 | — | W24 | — | 0.5 | OEM-E14-12 | — | — | — |
| 32 | COIL 1 | — | W23 | — | 0.5 | OEM-E14-11 | — | — | — |
| 33 | INJECTOR 3 | — | W29 | — | 0.5 | OEM-E14-1 | — | — | — |
| 33 | INJECTOR 3 | — | W33 | — | 0.5 | OEM-E14-5 | — | — | — |
| 35 | USB D+ | — | — | — | — | — | — | — | — |
| 36 | USB D- | — | — | — | — | — | — | — | — |
| 37 | LOW SIDE RELAY 11 | — | W49 | — | 0.5 | OEM-E13-4 | — | — | — |
| 38 | USB VBUS | — | — | — | — | — | — | — | — |
| 39 | LOW SIDE 6 | — | W48 | — | 0.5 | OEM-E13-3 | — | — | — |
| 4 | INJECTOR 2 | — | W28 | — | 0.5 | OEM-E13-6 | — | — | — |
| 4 | INJECTOR 2 | — | W32 | — | 0.5 | OEM-E14-4 | — | — | — |
| 41 | USB GROUND | — | — | — | — | — | — | — | — |
| 42 | LOW SIDE RELAY 12 | — | W50 | — | 0.5 | OEM-E11-28 | — | — | — |
| 43 | LOW SIDE RELAY 14 | — | W52 | — | 0.5 | OEM-E13-8 | — | — | — |
| 44 | LOW SIDE 4 | — | W45 | — | 0.5 | OEM-E15-5 | — | — | — |
| 45 | 5V REF | — | W16 | — | 0.5 | OEM-E13-2 | — | — | — |
| 46 | 5V REF | — | — | — | — | — | — | — | — |
| 49 | LSU IA | — | — | — | — | — | — | — | — |
| 50 | LSU IP | — | — | — | — | — | — | — | — |
| 51 | CAN 1 LOW | — | — | — | — | — | — | — | — |
| 52 | SENSORS GROUND | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | KNOCK 1 SIGNAL | — | W22 | — | 0.5 | OEM-E14-18 | — | — | — |
| 55 | SERIAL 1 RX | — | — | — | — | — | — | — | — |
| 56 | ANA VOLT 2 | — | W40 | — | 0.5 | OEM-E13-13 | — | — | — |
| 57 | ANA TEMP 2 | — | W53 | — | 0.5 | OEM-E13-22 | — | — | — |
| 6 | DIG_IN 1 | — | W54 | — | 0.5 | OEM-E14-27 | — | — | — |
| 61 | GROUND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 63 | INJECTOR 1 | — | W27 | — | 0.5 | OEM-E13-5 | — | — | — |
| 63 | INJECTOR 1 | — | W31 | — | 0.5 | OEM-E14-3 | — | — | — |
| 64 | VBAT | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 67 | Stepper 1 / A1 | — | W36 | — | 0.5 | OEM-E14-8 | — | — | — |
| 68 | Stepper 2 / A2 | — | W35 | — | 0.5 | OEM-E14-7 | — | — | — |
| 69 | LOW SIDE 5 | — | W47 | — | 0.5 | OEM-E11-8 | — | — | — |
| 7 | DIG_IN 2 | — | W55 | — | 0.5 | OEM-E14-28 | — | — | — |
| 70 | Stepper 3 / B1 | — | — | — | — | — | — | — | — |
| 71 | Stepper 4 / B2 | — | — | — | — | — | — | — | — |
| 72 | LOW SIDE RELAY 13 | — | W51 | — | 0.5 | OEM-E12-12 | — | — | — |
| 73 | LOW SIDE 1 | — | W37 | — | 0.5 | OEM-E11-19 | — | — | — |
| 74 | LOW SIDE 3 | — | W44 | — | 0.5 | OEM-E15-10 | — | — | — |
| 76 | 5V REF | — | — | — | — | — | — | — | — |
| 79 | TACHOMETER | — | — | — | — | — | — | — | — |
| 80 | CRANK VR+ | — | W17 | — | 0.5 | OEM-E14-23 | — | — | — |
| 81 | CRANK VR- | — | — | — | — | — | — | — | — |
| 84 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 86 | ANA TEMP 1 | — | W43 | — | 0.5 | OEM-E13-14 | — | — | — |
| 89 | GROUND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 90 | GROUND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-E11
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 17 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 18 | O2 sensor signal (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 19 | VVT oil-control valve RH (OCR+) | — | W37 | — | 0.5 | ME221-C1-73 | — | — | — |
| 27 | O2 sensor signal (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 28 | VVT oil-control valve RH (OCR−) | — | W50 | — | 0.5 | ME221-C1-42 | — | — | — |
| 5 | Diagnostic test (TC) | — | — | — | — | — | — | — | — |
| 7 | O2 sensor heater (bank unconfirmed) | — | W46 | — | 0.5 | ME221-C1-16 | — | — | — |
| 8 | O2 sensor heater (bank unconfirmed) | — | W47 | — | 0.5 | ME221-C1-69 | — | — | — |
OEM-E12
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 12 | Throttle magnetic clutch + (CL+) | — | W51 | — | 0.5 | ME221-C1-72 | — | — | — |
OEM-E13
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | MAF signal (VG) | — | W39 | — | 0.5 | ME221-C1-26 | — | — | — |
| 11 | O2 sensor signal (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 12 | O2 sensor signal (bank unconfirmed) | — | — | — | — | — | — | — | — |
| 13 | Throttle position sensor 1 (VTA) | — | W40 | — | 0.5 | ME221-C1-56 | — | — | — |
| 14 | Engine coolant temp (THW) | — | W43 | — | 0.5 | ME221-C1-86 | — | — | — |
| 15 | VVT position sensor RH (VVR+) | — | — | — | — | — | — | — | — |
| 16 | VVT position sensor LH (VVL+) | — | W20 | — | 0.5 | ME221-C1-23 | — | — | — |
| 17 | ECU ground (E1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | +5V sensor reference (VC) | — | W16 | — | 0.5 | ME221-C1-45 | — | — | — |
| 20 | Throttle position sensor 2 (VTA2) | — | W42 | — | 0.5 | ME221-C1-18 | — | — | — |
| 21 | Accelerator pedal position 1 (VPA) | — | W41 | — | 0.5 | ME221-C1-17 | — | — | — |
| 22 | Intake air temp (THA) | — | W53 | — | 0.5 | ME221-C1-57 | — | — | — |
| 23 | VVT position sensor RH (VVR−) | — | — | — | — | — | — | — | — |
| 24 | VVT position sensor LH (VVL−) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | O2 sensor heater (bank unconfirmed) | — | W48 | — | 0.5 | ME221-C1-39 | — | — | — |
| 4 | O2 sensor heater (bank unconfirmed) | — | W49 | — | 0.5 | ME221-C1-37 | — | — | — |
| 5 | Injector 1 (cyl 1) | — | W27 | — | 0.5 | ME221-C1-63 | — | — | — |
| 6 | Injector 2 (cyl 2) | — | W28 | — | 0.5 | ME221-C1-4 | — | — | — |
| 8 | Throttle magnetic clutch − (CL−) | — | W52 | — | 0.5 | ME221-C1-43 | — | — | — |
| 9 | Accelerator pedal position 2 (VPA2) | — | — | — | — | — | — | — | — |
OEM-E14
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (cyl 3) | — | W29 | — | 0.5 | ME221-C1-33 | — | — | — |
| 10 | Camshaft position sensor (G2) | — | W19 | — | 0.5 | ME221-C1-22 | — | — | — |
| 11 | Ignition coil 1 (IGT1) | — | W23 | — | 0.5 | ME221-C1-32 | — | — | — |
| 12 | Ignition coil 2 (IGT2) | — | W24 | — | 0.5 | ME221-C1-31 | — | — | — |
| 13 | Ignition coil 3 (IGT3) | — | W25 | — | 0.5 | ME221-C1-2 | — | — | — |
| 14 | Ignition coil 4 (IGT4) | — | W26 | — | 0.5 | ME221-C1-1 | — | — | — |
| 15 | Ignition coil 5 (IGT5) | — | — | — | — | — | — | — | — |
| 16 | Ignition coil 6 (IGT6) | — | — | — | — | — | — | — | — |
| 17 | Knock sensor RH (KNKR) | — | — | — | — | — | — | — | — |
| 18 | Knock sensor LH (KNKL) | — | W22 | — | 0.5 | ME221-C1-53 | — | — | — |
| 19 | VVT oil-control valve LH (OCV−) | — | — | — | — | — | — | — | — |
| 2 | Injector 4 (cyl 4) | — | W30 | — | 0.5 | ME221-C1-3 | — | — | — |
| 20 | VVT oil-control valve LH (OCV+) | — | W38 | — | 0.5 | ME221-C1-12 | — | — | — |
| 21 | Power/injector ground (E01) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position sensor (NE−) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position sensor (NE+) | — | W17 | — | 0.5 | ME221-C1-80 | — | — | — |
| 25 | Ignition coil 7 (IGT7) | — | — | — | — | — | — | — | — |
| 26 | Ignition coil 8 (IGT8) | — | — | — | — | — | — | — | — |
| 27 | Ignition confirmation 1 (IGF1) | — | W54 | — | 0.5 | ME221-C1-6 | — | — | — |
| 28 | Ignition confirmation 2 (IGF2) | — | W55 | — | 0.5 | ME221-C1-7 | — | — | — |
| 29 | ACIS induction VSV | — | — | — | — | — | — | — | — |
| 3 | Injector 5 (cyl 5) | — | W31 | — | 0.5 | ME221-C1-63 | — | — | — |
| 4 | Injector 6 (cyl 6) | — | W32 | — | 0.5 | ME221-C1-4 | — | — | — |
| 5 | Injector 7 (cyl 7) | — | W33 | — | 0.5 | ME221-C1-33 | — | — | — |
| 6 | Injector 8 (cyl 8) | — | W34 | — | 0.5 | ME221-C1-3 | — | — | — |
| 7 | Throttle motor − (M−) | — | W35 | — | 0.5 | ME221-C1-68 | — | — | — |
| 8 | Throttle motor + (M+) | — | W36 | — | 0.5 | ME221-C1-67 | — | — | — |
OEM-E15
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (+12V) | — | — | — | — | — | — | — | — |
| 10 | EFI main relay control (MREL) | — | W44 | — | 0.5 | ME221-C1-74 | — | — | — |
| 11 | OBD-II / DLC3 data (SIL) | — | — | — | — | — | — | — | — |
| 16 | ECM power (EFI relay +B) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 5 | Fuel pump relay control (FC) | — | W45 | — | 0.5 | ME221-C1-44 | — | — | — |
| 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 | — | — | W12 | — | 0.5 | OEM-E13-18 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E13-19 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | ME221-C1-52 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | ME221-C1-84 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-E14-22 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-E13-24 | — | — | — |
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 | ME221-C1-15 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | ME221-C1-64 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-E13-17 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E14-21 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | ME221-C1-10 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | ME221-C1-61 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | ME221-C1-89 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | ME221-C1-90 | — | — | — |
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 | — | — | — | corroborated | |
| OEM-E11-18 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | — | — | — | corroborated | |
| OEM-E11-19 | VVT oil-control valve RH (OCR+) | low_side_out | ME221-C1-73 | LOW SIDE 1 | low_side_out | corroborated | |
| OEM-E11-27 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | — | — | — | corroborated | |
| OEM-E11-28 | VVT oil-control valve RH (OCR−) | low_side_out | ME221-C1-42 | LOW SIDE RELAY 12 | low_side_out | corroborated | |
| OEM-E11-5 | Diagnostic test (TC) | serial | — | — | — | corroborated | |
| OEM-E11-7 | O2 sensor heater (bank unconfirmed) | low_side_out | ME221-C1-16 | LSU HEATER -VE | low_side_out | corroborated | |
| OEM-E11-8 | O2 sensor heater (bank unconfirmed) | low_side_out | ME221-C1-69 | LOW SIDE 5 | low_side_out | corroborated | |
| OEM-E12-12 | Throttle magnetic clutch + (CL+) | low_side_out | ME221-C1-72 | LOW SIDE RELAY 13 | low_side_out | corroborated | |
| OEM-E13-10 | MAF signal (VG) | analog_in | ME221-C1-26 | ANA VOLT 1 | analog_in | corroborated | |
| OEM-E13-11 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | — | — | — | corroborated | |
| OEM-E13-12 | O2 sensor signal (bank unconfirmed) | lambda_nb_in | — | — | — | corroborated | |
| OEM-E13-13 | Throttle position sensor 1 (VTA) | analog_in | ME221-C1-56 | ANA VOLT 2 | analog_in | corroborated | |
| OEM-E13-14 | Engine coolant temp (THW) | temp_in | ME221-C1-86 | ANA TEMP 1 | temp_in | corroborated | |
| OEM-E13-15 | VVT position sensor RH (VVR+) | trigger_in | — | — | — | corroborated | |
| OEM-E13-16 | VVT position sensor LH (VVL+) | trigger_in | ME221-C1-23 | CAM A VR- | trigger_in | corroborated | |
| OEM-E13-17 | ECU ground (E1) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | corroborated | |
| OEM-E13-18 | Sensor ground (E2) | sensor_ground | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-19 | MAF ground (EVG) | sensor_ground | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-2 | +5V sensor reference (VC) | vref | ME221-C1-45 | 5V REF | vref | corroborated | |
| OEM-E13-20 | Throttle position sensor 2 (VTA2) | analog_in | ME221-C1-18 | ANA VOLT 4 | analog_in | corroborated | |
| OEM-E13-21 | Accelerator pedal position 1 (VPA) | analog_in | ME221-C1-17 | ANA VOLT 3 | analog_in | corroborated | |
| OEM-E13-22 | Intake air temp (THA) | temp_in | ME221-C1-57 | ANA TEMP 2 | temp_in | corroborated | |
| OEM-E13-23 | VVT position sensor RH (VVR−) | trigger_in | — | — | — | corroborated | |
| OEM-E13-24 | VVT position sensor LH (VVL−) | trigger_in | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E13-3 | O2 sensor heater (bank unconfirmed) | low_side_out | ME221-C1-39 | LOW SIDE 6 | low_side_out | corroborated | |
| OEM-E13-4 | O2 sensor heater (bank unconfirmed) | low_side_out | ME221-C1-37 | LOW SIDE RELAY 11 | low_side_out | corroborated | |
| OEM-E13-5 | Injector 1 (cyl 1) | injector_out | ME221-C1-63 | INJECTOR 1 | injector_out | corroborated | |
| OEM-E13-6 | Injector 2 (cyl 2) | injector_out | ME221-C1-4 | INJECTOR 2 | injector_out | corroborated | |
| OEM-E13-8 | Throttle magnetic clutch − (CL−) | low_side_out | ME221-C1-43 | LOW SIDE RELAY 14 | low_side_out | corroborated | |
| OEM-E13-9 | Accelerator pedal position 2 (VPA2) | analog_in | — | — | — | corroborated | |
| OEM-E14-1 | Injector 3 (cyl 3) | injector_out | ME221-C1-33 | INJECTOR 3 | injector_out | corroborated | |
| OEM-E14-10 | Camshaft position sensor (G2) | trigger_in | ME221-C1-22 | CAM A VR+ | trigger_in | corroborated | |
| OEM-E14-11 | Ignition coil 1 (IGT1) | ignition_out | ME221-C1-32 | COIL 1 | ignition_out | corroborated | |
| OEM-E14-12 | Ignition coil 2 (IGT2) | ignition_out | ME221-C1-31 | COIL 2 | ignition_out | corroborated | |
| OEM-E14-13 | Ignition coil 3 (IGT3) | ignition_out | ME221-C1-2 | COIL 3 | ignition_out | corroborated | |
| OEM-E14-14 | Ignition coil 4 (IGT4) | ignition_out | ME221-C1-1 | COIL 4 | ignition_out | corroborated | |
| OEM-E14-15 | Ignition coil 5 (IGT5) | ignition_out | — | — | — | corroborated | |
| OEM-E14-16 | Ignition coil 6 (IGT6) | ignition_out | — | — | — | corroborated | |
| OEM-E14-17 | Knock sensor RH (KNKR) | knock_in | — | — | — | corroborated | |
| OEM-E14-18 | Knock sensor LH (KNKL) | knock_in | ME221-C1-53 | KNOCK 1 SIGNAL | 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 | ME221-C1-3 | INJECTOR 4 | injector_out | corroborated | |
| OEM-E14-20 | VVT oil-control valve LH (OCV+) | low_side_out | ME221-C1-12 | LOW SIDE 2 | low_side_out | corroborated | |
| OEM-E14-21 | Power/injector ground (E01) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | corroborated | |
| OEM-E14-22 | Crank position sensor (NE−) | trigger_in | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E14-23 | Crank position sensor (NE+) | trigger_in | ME221-C1-80 | CRANK VR+ | trigger_in | corroborated | |
| OEM-E14-25 | Ignition coil 7 (IGT7) | ignition_out | — | — | — | corroborated | |
| OEM-E14-26 | Ignition coil 8 (IGT8) | ignition_out | — | — | — | corroborated | |
| OEM-E14-27 | Ignition confirmation 1 (IGF1) | digital_in | ME221-C1-6 | DIG_IN 1 | digital_in | corroborated | |
| OEM-E14-28 | Ignition confirmation 2 (IGF2) | digital_in | ME221-C1-7 | DIG_IN 2 | digital_in | corroborated | |
| OEM-E14-29 | ACIS induction VSV | low_side_out | — | — | — | corroborated | |
| OEM-E14-3 | Injector 5 (cyl 5) | injector_out | ME221-C1-63 | INJECTOR 1 | injector_out | corroborated | |
| OEM-E14-4 | Injector 6 (cyl 6) | injector_out | ME221-C1-4 | INJECTOR 2 | injector_out | corroborated | |
| OEM-E14-5 | Injector 7 (cyl 7) | injector_out | ME221-C1-33 | INJECTOR 3 | injector_out | corroborated | |
| OEM-E14-6 | Injector 8 (cyl 8) | injector_out | ME221-C1-3 | INJECTOR 4 | injector_out | corroborated | |
| OEM-E14-7 | Throttle motor − (M−) | hbridge_out | ME221-C1-68 | Stepper 2 / A2 | hbridge_out | corroborated | |
| OEM-E14-8 | Throttle motor + (M+) | hbridge_out | ME221-C1-67 | Stepper 1 / A1 | hbridge_out | corroborated | |
| OEM-E15-1 | Battery constant (+12V) | power_in | — | — | — | corroborated | |
| OEM-E15-10 | EFI main relay control (MREL) | low_side_out | ME221-C1-74 | LOW SIDE 3 | low_side_out | corroborated | |
| OEM-E15-11 | OBD-II / DLC3 data (SIL) | serial | — | — | — | corroborated | |
| OEM-E15-16 | ECM power (EFI relay +B) | power_in | ME221-C1-15 + ME221-C1-64 | IGN +12V + VBAT | power_in | corroborated | |
| OEM-E15-5 | Fuel pump relay control (FC) | low_side_out | ME221-C1-44 | LOW SIDE 4 | low_side_out | corroborated | |
| OEM-E15-6 | Check engine light (W) | low_side_out | — | — | — | corroborated | |
| OEM-E15-7 | ECM power feed (+BM) | power_in | ME221-C1-15 + ME221-C1-64 | IGN +12V + VBAT | power_in | corroborated | |
| OEM-E15-8 | ECM power (EFI relay +B1) | power_in | ME221-C1-15 + ME221-C1-64 | IGN +12V + VBAT | 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 | ME221-C1-15 | 0.85 | no route | IGN +12V | — | |
| W5 | SP-14V-1 | ME221-C1-64 | 0.85 | no route | VBAT | — | |
| W6 | OEM-E13-17 | SP-GND-1 | 0.85 | no route | ECU ground (E1) | — | |
| W7 | OEM-E14-21 | SP-GND-1 | 0.85 | no route | Power/injector ground (E01) | — | |
| W8 | SP-GND-1 | ME221-C1-10 | 0.85 | no route | GROUND CHASSIS | — | |
| W9 | SP-GND-1 | ME221-C1-61 | 0.85 | no route | GROUND | — | |
| W10 | SP-GND-1 | ME221-C1-89 | 0.85 | no route | GROUND | — | |
| W11 | SP-GND-1 | ME221-C1-90 | 0.85 | no route | GROUND | — | |
| W12 | OEM-E13-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W13 | OEM-E13-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W14 | SP-0V-1 | ME221-C1-52 | 0.5 | no route | SENSORS GROUND | — | |
| W15 | SP-0V-1 | ME221-C1-84 | 0.5 | no route | Sensor Ground | — | |
| W16 | OEM-E13-2 | ME221-C1-45 | 0.5 | no route | +5V sensor reference (VC) | — | |
| W17 | OEM-E14-23 | ME221-C1-80 | 0.5 | no route | Crank position sensor (NE+) | — | |
| W18 | OEM-E14-22 | SP-0V-1 | 0.5 | no route | Crank position sensor (NE−) | — | |
| W19 | OEM-E14-10 | ME221-C1-22 | 0.5 | no route | Camshaft position sensor (G2) | — | |
| W20 | OEM-E13-16 | ME221-C1-23 | 0.5 | no route | VVT position sensor LH (VVL+) | — | |
| W21 | OEM-E13-24 | SP-0V-1 | 0.5 | no route | VVT position sensor LH (VVL−) | — | |
| W22 | OEM-E14-18 | ME221-C1-53 | 0.5 | no route | Knock sensor LH (KNKL) | — | |
| W23 | OEM-E14-11 | ME221-C1-32 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W24 | OEM-E14-12 | ME221-C1-31 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W25 | OEM-E14-13 | ME221-C1-2 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W26 | OEM-E14-14 | ME221-C1-1 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W27 | OEM-E13-5 | ME221-C1-63 | 0.5 | no route | Injector 1 (cyl 1) | — | |
| W28 | OEM-E13-6 | ME221-C1-4 | 0.5 | no route | Injector 2 (cyl 2) | — | |
| W29 | OEM-E14-1 | ME221-C1-33 | 0.5 | no route | Injector 3 (cyl 3) | — | |
| W30 | OEM-E14-2 | ME221-C1-3 | 0.5 | no route | Injector 4 (cyl 4) | — | |
| W31 | OEM-E14-3 | ME221-C1-63 | 0.5 | no route | Injector 5 (cyl 5) | — | |
| W32 | OEM-E14-4 | ME221-C1-4 | 0.5 | no route | Injector 6 (cyl 6) | — | |
| W33 | OEM-E14-5 | ME221-C1-33 | 0.5 | no route | Injector 7 (cyl 7) | — | |
| W34 | OEM-E14-6 | ME221-C1-3 | 0.5 | no route | Injector 8 (cyl 8) | — | |
| W35 | OEM-E14-7 | ME221-C1-68 | 0.5 | no route | Throttle motor − (M−) | — | |
| W36 | OEM-E14-8 | ME221-C1-67 | 0.5 | no route | Throttle motor + (M+) | — | |
| W37 | OEM-E11-19 | ME221-C1-73 | 0.5 | no route | VVT oil-control valve RH (OCR+) | — | |
| W38 | OEM-E14-20 | ME221-C1-12 | 0.5 | no route | VVT oil-control valve LH (OCV+) | — | |
| W39 | OEM-E13-10 | ME221-C1-26 | 0.5 | no route | MAF signal (VG) | — | |
| W40 | OEM-E13-13 | ME221-C1-56 | 0.5 | no route | Throttle position sensor 1 (VTA) | — | |
| W41 | OEM-E13-21 | ME221-C1-17 | 0.5 | no route | Accelerator pedal position 1 (VPA) | — | |
| W42 | OEM-E13-20 | ME221-C1-18 | 0.5 | no route | Throttle position sensor 2 (VTA2) | — | |
| W43 | OEM-E13-14 | ME221-C1-86 | 0.5 | no route | Engine coolant temp (THW) | — | |
| W44 | OEM-E15-10 | ME221-C1-74 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W45 | OEM-E15-5 | ME221-C1-44 | 0.5 | no route | Fuel pump relay control (FC) | — | |
| W46 | OEM-E11-7 | ME221-C1-16 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W47 | OEM-E11-8 | ME221-C1-69 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W48 | OEM-E13-3 | ME221-C1-39 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W49 | OEM-E13-4 | ME221-C1-37 | 0.5 | no route | O2 sensor heater (bank unconfirmed) | — | |
| W50 | OEM-E11-28 | ME221-C1-42 | 0.5 | no route | VVT oil-control valve RH (OCR−) | — | |
| W51 | OEM-E12-12 | ME221-C1-72 | 0.5 | no route | Throttle magnetic clutch + (CL+) | — | |
| W52 | OEM-E13-8 | ME221-C1-43 | 0.5 | no route | Throttle magnetic clutch − (CL−) | — | |
| W53 | OEM-E13-22 | ME221-C1-57 | 0.5 | no route | Intake air temp (THA) | — | |
| W54 | OEM-E14-27 | ME221-C1-6 | 0.5 | no route | Ignition confirmation 1 (IGF1) | — | |
| W55 | OEM-E14-28 | ME221-C1-7 | 0.5 | no route | Ignition confirmation 2 (IGF2) | — |
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 (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | NET_MERGED | ME221-C1-3 + OEM-E14-2 + OEM-E14-6 | 2 different OEM functions share one net: OEM-E14-2 Injector 4 (cyl 4); OEM-E14-6 Injector 8 (cyl 8) |
| error | NET_MERGED | ME221-C1-33 + OEM-E14-1 + OEM-E14-5 | 2 different OEM functions share one net: OEM-E14-1 Injector 3 (cyl 3); OEM-E14-5 Injector 7 (cyl 7) |
| error | NET_MERGED | ME221-C1-4 + OEM-E13-6 + OEM-E14-4 | 2 different OEM functions share one net: OEM-E13-6 Injector 2 (cyl 2); OEM-E14-4 Injector 6 (cyl 6) |
| error | NET_MERGED | ME221-C1-63 + OEM-E13-5 + OEM-E14-3 | 2 different OEM functions share one net: OEM-E13-5 Injector 1 (cyl 1); OEM-E14-3 Injector 5 (cyl 5) |
| error | REQUIRED_UNMAPPED | OEM-E13-9 | Required OEM function "Accelerator pedal position 2 (VPA2)" (analog_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E14-15 | Required OEM function "Ignition coil 5 (IGT5)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E14-16 | Required OEM function "Ignition coil 6 (IGT6)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E14-17 | Required OEM function "Knock sensor RH (KNKR)" (knock_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E14-25 | Required OEM function "Ignition coil 7 (IGT7)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E14-26 | Required OEM function "Ignition coil 8 (IGT8)" (ignition_out) is not connected to the new ECU. |
| 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 | ME221-C1-67 | Cannot confirm ME221 can drive the throttle motor: ME221-C1-67 "Stepper 1 / A1" is rated 0.5 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 | DBW_MOTOR_CURRENT | ME221-C1-68 | Cannot confirm ME221 can drive the throttle motor: ME221-C1-68 "Stepper 2 / A2" is rated 0.5 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). |
| info | NET_FAMILY | OEM-E13-18 ↔ OEM-E14-22 | OEM-E13-18 "Sensor ground (E2)" [sensor_ground] is wired to OEM-E14-22 "Crank position sensor (NE−)" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 12 optional OEM pins are not mapped: OEM-E11-17 Starter signal (STA); OEM-E11-18 O2 sensor signal (bank unconfirmed); OEM-E11-27 O2 sensor signal (bank unconfirmed); OEM-E11-5 Diagnostic test (TC); OEM-E13-11 O2 sensor signal (bank unconfirmed); OEM-E13-12 O2 sensor signal (bank unconfirmed); OEM-E13-15 VVT position sensor RH (VVR+); OEM-E13-23 VVT position sensor RH (VVR−); OEM-E14-19 VVT oil-control valve LH (OCV−); OEM-E14-29 ACIS induction VSV; OEM-E15-11 OBD-II / DLC3 data (SIL); OEM-E15-6 Check engine light (W) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-E15-1 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - Only 4 ignition outputs for 8 cylinders: wasted spark (pair coils per firing order) - Only 4 injector outputs for 8 injectors: batch / semi-sequential injection - Trigger pattern needs a workaround: derived: ME lists '1UZ' (the classic 12-tooth NE + G1/G2 pattern) and a generic '36-2' crank pattern. The 1998-2000 1UZ-FE VVT-i uses a 36-2 crank wheel (+ VVT cam), so the crank side is covered, but ME does not explicitly list a '1UZ VV... 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-E14 17: Knock sensor RH (KNKR): no free knock input on Motorsport Electronics ME221 - OEM-E14 15: Ignition coil 5 (IGT5): no free ignition output on Motorsport Electronics ME221 - OEM-E14 16: Ignition coil 6 (IGT6): no free ignition output on Motorsport Electronics ME221 - OEM-E14 25: Ignition coil 7 (IGT7): no free ignition output on Motorsport Electronics ME221 - OEM-E14 26: Ignition coil 8 (IGT8): no free ignition output on Motorsport Electronics ME221 - 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); Motorsport Electronics ME221 has no dedicated key-on input - OEM-E13 9: Accelerator pedal position 2 (VPA2): no free tps/analog_0_5 on Motorsport Electronics ME221 Not wired: - OEM-E15 1: Battery constant (+12V): Motorsport Electronics ME221 has no battery-constant input; not needed - OEM-E13 15: VVT position sensor RH (VVR+): no free cam_hall/cam_vr/frequency_in input on Motorsport Electronics ME221 - OEM-E13 23: VVT position sensor RH (VVR−): no free cam_hall/cam_vr/frequency_in input on Motorsport Electronics ME221 - OEM-E14 19: VVT oil-control valve LH (OCV−): no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E14 29: ACIS induction VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E15 6: Check engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E11 18: O2 sensor signal (bank unconfirmed): no free o2_narrowband/analog_0_5 on Motorsport Electronics ME221 - OEM-E11 27: O2 sensor signal (bank unconfirmed): no free o2_narrowband/analog_0_5 on Motorsport Electronics ME221 - OEM-E13 11: O2 sensor signal (bank unconfirmed): no free o2_narrowband/analog_0_5 on Motorsport Electronics ME221 - OEM-E13 12: O2 sensor signal (bank unconfirmed): no free o2_narrowband/analog_0_5 on Motorsport Electronics ME221 - OEM-E11 17: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-E15 11: OBD-II / DLC3 data (SIL): no free k_line on Motorsport Electronics ME221 - OEM-E11 5: Diagnostic test (TC): no free k_line on Motorsport Electronics ME221
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Motorsport Electronics GEN2 ME221/ME360/ME442 wire-in pinout | https://motorsport-electronics.co.uk/onlinehelp/html/ME442ME360ME221GEN2Wire-InPinout.html | — | — | — |
| 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 | — | — | — |