Toyota Supra A80 1993-98 USDM (2JZ-GTE, non-VVT) → Motorsport Electronics ME221 (auto)
Toyota Supra A80 1993-98 USDM (2JZ-GTE, non-VVT) — Motorsport Electronics — ME221
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12
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 | 5: read the Findings page before cutting any wire |
| Size of the job | 53 wires · 6 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-E10-31 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-14V-1 | ME221-C1-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | ME221-C1-64 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-E9-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-E9-69 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E9-78 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E9-80 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | ME221-C1-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | ME221-C1-61 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | ME221-C1-89 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | ME221-C1-90 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E9-5 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E9-6 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E9-65 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E9-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | ME221-C1-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | ME221-C1-84 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E9-41 | ME221-C1-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E9-27 | ME221-C1-80 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E9-26 | ME221-C1-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E9-25 | ME221-C1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E9-50 | ME221-C1-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E9-57 | ME221-C1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E9-56 | ME221-C1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E9-55 | ME221-C1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E9-54 | ME221-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E9-20 | ME221-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E9-19 | ME221-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E9-18 | ME221-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E9-17 | ME221-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E9-16 | ME221-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E9-15 | ME221-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E9-62 | ME221-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E9-43 | ME221-C1-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E9-44 | ME221-C1-86 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E10-23 | ME221-C1-73 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E10-24 | ME221-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E9-71 | ME221-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E9-72 | ME221-C1-74 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E10-22 | ME221-C1-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E10-6 | ME221-C1-69 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E9-32 | ME221-C1-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E9-33 | ME221-C1-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E9-34 | ME221-C1-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E9-35 | ME221-C1-72 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E9-60 | ME221-C1-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E10-16 | ME221-C1-79 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E9-47 | ME221-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E9-48 | ME221-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E9-45 | ME221-C1-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E10-2 | ME221-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E10-21 | 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-C1-15 | ME221-C1-10 | open (OL) | +12 V supply must not touch power ground | |
| 2 | ME221-C1-15 | ME221-C1-52 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | ME221-C1-45 | ME221-C1-52 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | ME221-C1-10 | ME221-C1-45 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | ME221-C1-15 | ME221-C1-45 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
ME221-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | COIL 4 | — | W27 | — | 0.5 | OEM-E9-54 | — | — | — |
| 10 | GROUND CHASSIS | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | LOW SIDE 2 | — | W38 | — | 0.5 | OEM-E10-24 | — | — | — |
| 14 | LSU +12V | — | — | — | — | — | — | — | — |
| 15 | IGN +12V | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 16 | LSU HEATER -VE | — | W39 | — | 0.5 | OEM-E9-71 | — | — | — |
| 17 | ANA VOLT 3 | — | W49 | — | 0.5 | OEM-E9-47 | — | — | — |
| 18 | ANA VOLT 4 | — | W50 | — | 0.5 | OEM-E9-48 | — | — | — |
| 19 | LSU UN | — | — | — | — | — | — | — | — |
| 2 | COIL 3 | — | W26 | — | 0.5 | OEM-E9-55 | — | — | — |
| 20 | LSU VM | — | — | — | — | — | — | — | — |
| 21 | CAN 1 HIGH | — | — | — | — | — | — | — | — |
| 22 | CAM A VR+ | — | W21 | — | 0.5 | OEM-E9-26 | — | — | — |
| 23 | CAM A VR- | — | W22 | — | 0.5 | OEM-E9-25 | — | — | — |
| 24 | SERIAL 1 GROUND | — | — | — | — | — | — | — | — |
| 25 | SERIAL 1 TX | — | — | — | — | — | — | — | — |
| 26 | ANA VOLT 1 | — | W34 | — | 0.5 | OEM-E9-62 | — | — | — |
| 3 | INJECTOR 4 | — | W31 | — | 0.5 | OEM-E9-17 | — | — | — |
| 31 | COIL 2 | — | W25 | — | 0.5 | OEM-E9-56 | — | — | — |
| 32 | COIL 1 | — | W24 | — | 0.5 | OEM-E9-57 | — | — | — |
| 33 | INJECTOR 3 | — | W30 | — | 0.5 | OEM-E9-18 | — | — | — |
| 35 | USB D+ | — | — | — | — | — | — | — | — |
| 36 | USB D- | — | — | — | — | — | — | — | — |
| 37 | LOW SIDE RELAY 11 | — | W44 | — | 0.5 | OEM-E9-33 | — | — | — |
| 38 | USB VBUS | — | — | — | — | — | — | — | — |
| 39 | LOW SIDE 6 | — | W43 | — | 0.5 | OEM-E9-32 | — | — | — |
| 4 | INJECTOR 2 | — | W29 | — | 0.5 | OEM-E9-19 | — | — | — |
| 4 | INJECTOR 2 | — | W33 | — | 0.5 | OEM-E9-15 | — | — | — |
| 41 | USB GROUND | — | — | — | — | — | — | — | — |
| 42 | LOW SIDE RELAY 12 | — | W45 | — | 0.5 | OEM-E9-34 | — | — | — |
| 43 | LOW SIDE RELAY 14 | — | W47 | — | 0.5 | OEM-E9-60 | — | — | — |
| 44 | LOW SIDE 4 | — | W41 | — | 0.5 | OEM-E10-22 | — | — | — |
| 45 | 5V REF | — | W19 | — | 0.5 | OEM-E9-41 | — | — | — |
| 46 | 5V REF | — | — | — | — | — | — | — | — |
| 49 | LSU IA | — | — | — | — | — | — | — | — |
| 50 | LSU IP | — | — | — | — | — | — | — | — |
| 51 | CAN 1 LOW | — | — | — | — | — | — | — | — |
| 52 | SENSORS GROUND | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | KNOCK 1 SIGNAL | — | W23 | — | 0.5 | OEM-E9-50 | — | — | — |
| 55 | SERIAL 1 RX | — | — | — | — | — | — | — | — |
| 56 | ANA VOLT 2 | — | W35 | — | 0.5 | OEM-E9-43 | — | — | — |
| 57 | ANA TEMP 2 | — | W51 | — | 0.5 | OEM-E9-45 | — | — | — |
| 6 | DIG_IN 1 | — | W52 | — | 0.5 | OEM-E10-2 | — | — | — |
| 61 | GROUND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 63 | INJECTOR 1 | — | W28 | — | 0.5 | OEM-E9-20 | — | — | — |
| 63 | INJECTOR 1 | — | W32 | — | 0.5 | OEM-E9-16 | — | — | — |
| 64 | VBAT | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 67 | Stepper 1 / A1 | — | — | — | — | — | — | — | — |
| 68 | Stepper 2 / A2 | — | — | — | — | — | — | — | — |
| 69 | LOW SIDE 5 | — | W42 | — | 0.5 | OEM-E10-6 | — | — | — |
| 7 | DIG_IN 2 | — | W53 | — | 0.5 | OEM-E10-21 | — | — | — |
| 70 | Stepper 3 / B1 | — | — | — | — | — | — | — | — |
| 71 | Stepper 4 / B2 | — | — | — | — | — | — | — | — |
| 72 | LOW SIDE RELAY 13 | — | W46 | — | 0.5 | OEM-E9-35 | — | — | — |
| 73 | LOW SIDE 1 | — | W37 | — | 0.5 | OEM-E10-23 | — | — | — |
| 74 | LOW SIDE 3 | — | W40 | — | 0.5 | OEM-E9-72 | — | — | — |
| 76 | 5V REF | — | — | — | — | — | — | — | — |
| 79 | TACHOMETER | — | W48 | — | 0.5 | OEM-E10-16 | — | — | — |
| 80 | CRANK VR+ | — | W20 | — | 0.5 | OEM-E9-27 | — | — | — |
| 81 | CRANK VR- | — | — | — | — | — | — | — | — |
| 84 | Sensor Ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 86 | ANA TEMP 1 | — | W36 | — | 0.5 | OEM-E9-44 | — | — | — |
| 89 | GROUND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 90 | GROUND | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-E10
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | — | — | — | — | — | — | — |
| 15 | Electrical load sensor (ELS) | — | — | — | — | — | — | — | — |
| 16 | Tachometer output | — | W48 | — | 0.5 | ME221-C1-79 | — | — | — |
| 2 | Vehicle speed sensor (SP1) | — | W52 | — | 0.5 | ME221-C1-6 | — | — | — |
| 21 | Fuel pump diagnostic (DI) | — | W53 | — | 0.5 | ME221-C1-7 | — | — | — |
| 22 | Fuel pump control (FPC) | — | W41 | — | 0.5 | ME221-C1-44 | — | — | — |
| 23 | A/C clutch relay (ACMG) | — | W37 | — | 0.5 | ME221-C1-73 | — | — | — |
| 24 | Main relay control (M-REL) | — | W38 | — | 0.5 | ME221-C1-12 | — | — | — |
| 31 | ECU power +B (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 4 | Brake switch (STP) | — | — | — | — | — | — | — | — |
| 6 | Malfunction indicator lamp (MIL) | — | W42 | — | 0.5 | ME221-C1-69 | — | — | — |
OEM-E9
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 15 | Injector 6 | — | W33 | — | 0.5 | ME221-C1-4 | — | — | — |
| 16 | Injector 5 | — | W32 | — | 0.5 | ME221-C1-63 | — | — | — |
| 17 | Injector 4 | — | W31 | — | 0.5 | ME221-C1-3 | — | — | — |
| 18 | Injector 3 | — | W30 | — | 0.5 | ME221-C1-33 | — | — | — |
| 19 | Injector 2 | — | W29 | — | 0.5 | ME221-C1-4 | — | — | — |
| 20 | Injector 1 | — | W28 | — | 0.5 | ME221-C1-63 | — | — | — |
| 25 | Camshaft position 2 (G2) | — | W22 | — | 0.5 | ME221-C1-23 | — | — | — |
| 26 | Camshaft position 1 (G1) | — | W21 | — | 0.5 | ME221-C1-22 | — | — | — |
| 27 | Crank position (NE) | — | W20 | — | 0.5 | ME221-C1-80 | — | — | — |
| 32 | ISC stepper winding | — | W43 | — | 0.5 | ME221-C1-39 | — | — | — |
| 33 | ISC stepper winding | — | W44 | — | 0.5 | ME221-C1-37 | — | — | — |
| 34 | ISC stepper winding | — | W45 | — | 0.5 | ME221-C1-42 | — | — | — |
| 35 | ISC stepper winding | — | W46 | — | 0.5 | ME221-C1-72 | — | — | — |
| 4 | Power ground (E11) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 41 | Sensor supply +5V (VCC) | — | W19 | — | 0.5 | ME221-C1-45 | — | — | — |
| 43 | Throttle position (VTA1) | — | W35 | — | 0.5 | ME221-C1-56 | — | — | — |
| 44 | Coolant temperature (THW) | — | W36 | — | 0.5 | ME221-C1-86 | — | — | — |
| 45 | Intake air temperature (THA) | — | W51 | — | 0.5 | ME221-C1-57 | — | — | — |
| 47 | O2 sensor 2 (OX2) | — | W49 | — | 0.5 | ME221-C1-17 | — | — | — |
| 48 | O2 sensor 1 (OX1) | — | W50 | — | 0.5 | ME221-C1-18 | — | — | — |
| 49 | Knock sensor 2 (KNK2) | — | — | — | — | — | — | — | — |
| 5 | Cam sensor 2 ground (G2-) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 50 | Knock sensor 1 (KNK1) | — | W23 | — | 0.5 | ME221-C1-53 | — | — | — |
| 52 | Ignition 6 (IGT6) | — | — | — | — | — | — | — | — |
| 53 | Ignition 5 (IGT5) | — | — | — | — | — | — | — | — |
| 54 | Ignition 4 (IGT4) | — | W27 | — | 0.5 | ME221-C1-1 | — | — | — |
| 55 | Ignition 3 (IGT3) | — | W26 | — | 0.5 | ME221-C1-2 | — | — | — |
| 56 | Ignition 2 (IGT2) | — | W25 | — | 0.5 | ME221-C1-31 | — | — | — |
| 57 | Ignition 1 (IGT1) | — | W24 | — | 0.5 | ME221-C1-32 | — | — | — |
| 58 | Ignition confirmation (IGF) | — | — | — | — | — | — | — | — |
| 6 | Cam sensor 1 ground (G1-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 60 | Wastegate VSV (boost control) | — | W47 | — | 0.5 | ME221-C1-43 | — | — | — |
| 62 | MAP sensor (PIM) | — | W34 | — | 0.5 | ME221-C1-26 | — | — | — |
| 65 | Sensor ground (E2) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 69 | ECU power ground (E1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Crank sensor ground (NE-) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 71 | O2 heater 1 (HT1) | — | W39 | — | 0.5 | ME221-C1-16 | — | — | — |
| 72 | O2 heater 2 (HT2) | — | W40 | — | 0.5 | ME221-C1-74 | — | — | — |
| 73 | Fuel pressure-up VSV (FPU) | — | — | — | — | — | — | — | — |
| 74 | Purge VSV (EVAP) | — | — | — | — | — | — | — | — |
| 76 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 78 | Power ground (E01) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 79 | Power ground (E01/E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 80 | Power ground (E01/E02) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-E9-5 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-E9-6 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-E9-65 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-E9-7 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | ME221-C1-52 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | ME221-C1-84 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E10-31 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | ME221-C1-15 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | ME221-C1-64 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-E9-4 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-E9-69 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-E9-78 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E9-79 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E9-80 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | ME221-C1-10 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | ME221-C1-61 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | ME221-C1-89 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | ME221-C1-90 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E10-1 | Ignition switch (IGSW) | digital_in | — | — | — | corroborated | |
| OEM-E10-15 | Electrical load sensor (ELS) | digital_in | — | — | — | single_source | |
| OEM-E10-16 | Tachometer output | tacho_out | ME221-C1-79 | TACHOMETER | tacho_out | corroborated | |
| OEM-E10-2 | Vehicle speed sensor (SP1) | digital_in | ME221-C1-6 | DIG_IN 1 | digital_in | corroborated | |
| OEM-E10-21 | Fuel pump diagnostic (DI) | digital_in | ME221-C1-7 | DIG_IN 2 | digital_in | single_source | |
| OEM-E10-22 | Fuel pump control (FPC) | low_side_out | ME221-C1-44 | LOW SIDE 4 | low_side_out | corroborated | |
| OEM-E10-23 | A/C clutch relay (ACMG) | low_side_out | ME221-C1-73 | LOW SIDE 1 | low_side_out | corroborated | |
| OEM-E10-24 | Main relay control (M-REL) | low_side_out | ME221-C1-12 | LOW SIDE 2 | low_side_out | corroborated | |
| OEM-E10-31 | ECU power +B (main relay) | power_in | ME221-C1-15 + ME221-C1-64 | IGN +12V + VBAT | power_in | corroborated | |
| OEM-E10-33 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-E10-4 | Brake switch (STP) | digital_in | — | — | — | single_source | |
| OEM-E10-6 | Malfunction indicator lamp (MIL) | low_side_out | ME221-C1-69 | LOW SIDE 5 | low_side_out | corroborated | |
| OEM-E9-15 | Injector 6 | injector_out | ME221-C1-4 | INJECTOR 2 | injector_out | corroborated | |
| OEM-E9-16 | Injector 5 | injector_out | ME221-C1-63 | INJECTOR 1 | injector_out | corroborated | |
| OEM-E9-17 | Injector 4 | injector_out | ME221-C1-3 | INJECTOR 4 | injector_out | corroborated | |
| OEM-E9-18 | Injector 3 | injector_out | ME221-C1-33 | INJECTOR 3 | injector_out | corroborated | |
| OEM-E9-19 | Injector 2 | injector_out | ME221-C1-4 | INJECTOR 2 | injector_out | corroborated | |
| OEM-E9-20 | Injector 1 | injector_out | ME221-C1-63 | INJECTOR 1 | injector_out | corroborated | |
| OEM-E9-25 | Camshaft position 2 (G2) | trigger_in | ME221-C1-23 | CAM A VR- | trigger_in | corroborated | |
| OEM-E9-26 | Camshaft position 1 (G1) | trigger_in | ME221-C1-22 | CAM A VR+ | trigger_in | corroborated | |
| OEM-E9-27 | Crank position (NE) | trigger_in | ME221-C1-80 | CRANK VR+ | trigger_in | corroborated | |
| OEM-E9-32 | ISC stepper winding | low_side_out | ME221-C1-39 | LOW SIDE 6 | low_side_out | corroborated | |
| OEM-E9-33 | ISC stepper winding | low_side_out | ME221-C1-37 | LOW SIDE RELAY 11 | low_side_out | corroborated | |
| OEM-E9-34 | ISC stepper winding | low_side_out | ME221-C1-42 | LOW SIDE RELAY 12 | low_side_out | corroborated | |
| OEM-E9-35 | ISC stepper winding | low_side_out | ME221-C1-72 | LOW SIDE RELAY 13 | low_side_out | corroborated | |
| OEM-E9-4 | Power ground (E11) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-E9-41 | Sensor supply +5V (VCC) | vref | ME221-C1-45 | 5V REF | vref | corroborated | |
| OEM-E9-43 | Throttle position (VTA1) | analog_in | ME221-C1-56 | ANA VOLT 2 | analog_in | corroborated | |
| OEM-E9-44 | Coolant temperature (THW) | temp_in | ME221-C1-86 | ANA TEMP 1 | temp_in | corroborated | |
| OEM-E9-45 | Intake air temperature (THA) | temp_in | ME221-C1-57 | ANA TEMP 2 | temp_in | corroborated | |
| OEM-E9-47 | O2 sensor 2 (OX2) | lambda_nb_in | ME221-C1-17 | ANA VOLT 3 | analog_in | single_source | |
| OEM-E9-48 | O2 sensor 1 (OX1) | lambda_nb_in | ME221-C1-18 | ANA VOLT 4 | analog_in | corroborated | |
| OEM-E9-49 | Knock sensor 2 (KNK2) | knock_in | — | — | — | corroborated | |
| OEM-E9-5 | Cam sensor 2 ground (G2-) | sensor_ground | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-50 | Knock sensor 1 (KNK1) | knock_in | ME221-C1-53 | KNOCK 1 SIGNAL | knock_in | corroborated | |
| OEM-E9-52 | Ignition 6 (IGT6) | ignition_out | — | — | — | corroborated | |
| OEM-E9-53 | Ignition 5 (IGT5) | ignition_out | — | — | — | corroborated | |
| OEM-E9-54 | Ignition 4 (IGT4) | ignition_out | ME221-C1-1 | COIL 4 | ignition_out | corroborated | |
| OEM-E9-55 | Ignition 3 (IGT3) | ignition_out | ME221-C1-2 | COIL 3 | ignition_out | corroborated | |
| OEM-E9-56 | Ignition 2 (IGT2) | ignition_out | ME221-C1-31 | COIL 2 | ignition_out | corroborated | |
| OEM-E9-57 | Ignition 1 (IGT1) | ignition_out | ME221-C1-32 | COIL 1 | ignition_out | corroborated | |
| OEM-E9-58 | Ignition confirmation (IGF) | digital_in | — | — | — | single_source | |
| OEM-E9-6 | Cam sensor 1 ground (G1-) | sensor_ground | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-60 | Wastegate VSV (boost control) | low_side_out | ME221-C1-43 | LOW SIDE RELAY 14 | low_side_out | single_source | |
| OEM-E9-62 | MAP sensor (PIM) | analog_in | ME221-C1-26 | ANA VOLT 1 | analog_in | single_source | |
| OEM-E9-65 | Sensor ground (E2) | sensor_ground | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-69 | ECU power ground (E1) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | corroborated | |
| OEM-E9-7 | Crank sensor ground (NE-) | sensor_ground | ME221-C1-52 + ME221-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-71 | O2 heater 1 (HT1) | low_side_out | ME221-C1-16 | LSU HEATER -VE | low_side_out | single_source | |
| OEM-E9-72 | O2 heater 2 (HT2) | low_side_out | ME221-C1-74 | LOW SIDE 3 | low_side_out | single_source | |
| OEM-E9-73 | Fuel pressure-up VSV (FPU) | low_side_out | — | — | — | single_source | |
| OEM-E9-74 | Purge VSV (EVAP) | low_side_out | — | — | — | single_source | |
| OEM-E9-76 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-E9-78 | Power ground (E01) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-E9-79 | Power ground (E01/E02) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | corroborated | |
| OEM-E9-80 | Power ground (E01/E02) | ground | ME221-C1-10 + ME221-C1-61 + ME221-C1-89 + ME221-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E10-31 | SP-14V-1 | 0.85 | no route | ECU power +B (main relay) | — | |
| W2 | SP-14V-1 | ME221-C1-15 | 0.85 | no route | IGN +12V | — | |
| W3 | SP-14V-1 | ME221-C1-64 | 0.85 | no route | VBAT | — | |
| W4 | OEM-E9-4 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W5 | OEM-E9-69 | SP-GND-1 | 0.85 | no route | ECU power ground (E1) | — | |
| W6 | OEM-E9-78 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W8 | OEM-E9-80 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W9 | SP-GND-1 | ME221-C1-10 | 0.85 | no route | GROUND CHASSIS | — | |
| W10 | SP-GND-1 | ME221-C1-61 | 0.85 | no route | GROUND | — | |
| W11 | SP-GND-1 | ME221-C1-89 | 0.85 | no route | GROUND | — | |
| W12 | SP-GND-1 | ME221-C1-90 | 0.85 | no route | GROUND | — | |
| W13 | OEM-E9-5 | SP-0V-1 | 0.5 | no route | Cam sensor 2 ground (G2-) | — | |
| W14 | OEM-E9-6 | SP-0V-1 | 0.5 | no route | Cam sensor 1 ground (G1-) | — | |
| W15 | OEM-E9-65 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W16 | OEM-E9-7 | SP-0V-1 | 0.5 | no route | Crank sensor ground (NE-) | — | |
| W17 | SP-0V-1 | ME221-C1-52 | 0.5 | no route | SENSORS GROUND | — | |
| W18 | SP-0V-1 | ME221-C1-84 | 0.5 | no route | Sensor Ground | — | |
| W19 | OEM-E9-41 | ME221-C1-45 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W20 | OEM-E9-27 | ME221-C1-80 | 0.5 | no route | Crank position (NE) | — | |
| W21 | OEM-E9-26 | ME221-C1-22 | 0.5 | no route | Camshaft position 1 (G1) | — | |
| W22 | OEM-E9-25 | ME221-C1-23 | 0.5 | no route | Camshaft position 2 (G2) | — | |
| W23 | OEM-E9-50 | ME221-C1-53 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W24 | OEM-E9-57 | ME221-C1-32 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W25 | OEM-E9-56 | ME221-C1-31 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W26 | OEM-E9-55 | ME221-C1-2 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W27 | OEM-E9-54 | ME221-C1-1 | 0.5 | no route | Ignition 4 (IGT4) | — | |
| W28 | OEM-E9-20 | ME221-C1-63 | 0.5 | no route | Injector 1 | — | |
| W29 | OEM-E9-19 | ME221-C1-4 | 0.5 | no route | Injector 2 | — | |
| W30 | OEM-E9-18 | ME221-C1-33 | 0.5 | no route | Injector 3 | — | |
| W31 | OEM-E9-17 | ME221-C1-3 | 0.5 | no route | Injector 4 | — | |
| W32 | OEM-E9-16 | ME221-C1-63 | 0.5 | no route | Injector 5 | — | |
| W33 | OEM-E9-15 | ME221-C1-4 | 0.5 | no route | Injector 6 | — | |
| W34 | OEM-E9-62 | ME221-C1-26 | 0.5 | no route | MAP sensor (PIM) | — | |
| W35 | OEM-E9-43 | ME221-C1-56 | 0.5 | no route | Throttle position (VTA1) | — | |
| W36 | OEM-E9-44 | ME221-C1-86 | 0.5 | no route | Coolant temperature (THW) | — | |
| W37 | OEM-E10-23 | ME221-C1-73 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W38 | OEM-E10-24 | ME221-C1-12 | 0.5 | no route | Main relay control (M-REL) | — | |
| W39 | OEM-E9-71 | ME221-C1-16 | 0.5 | no route | O2 heater 1 (HT1) | — | |
| W40 | OEM-E9-72 | ME221-C1-74 | 0.5 | no route | O2 heater 2 (HT2) | — | |
| W41 | OEM-E10-22 | ME221-C1-44 | 0.5 | no route | Fuel pump control (FPC) | — | |
| W42 | OEM-E10-6 | ME221-C1-69 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W43 | OEM-E9-32 | ME221-C1-39 | 0.5 | no route | ISC stepper winding | — | |
| W44 | OEM-E9-33 | ME221-C1-37 | 0.5 | no route | ISC stepper winding | — | |
| W45 | OEM-E9-34 | ME221-C1-42 | 0.5 | no route | ISC stepper winding | — | |
| W46 | OEM-E9-35 | ME221-C1-72 | 0.5 | no route | ISC stepper winding | — | |
| W47 | OEM-E9-60 | ME221-C1-43 | 0.5 | no route | Wastegate VSV (boost control) | — | |
| W48 | OEM-E10-16 | ME221-C1-79 | 0.5 | no route | Tachometer output | — | |
| W49 | OEM-E9-47 | ME221-C1-17 | 0.5 | no route | O2 sensor 2 (OX2) | — | |
| W50 | OEM-E9-48 | ME221-C1-18 | 0.5 | no route | O2 sensor 1 (OX1) | — | |
| W51 | OEM-E9-45 | ME221-C1-57 | 0.5 | no route | Intake air temperature (THA) | — | |
| W52 | OEM-E10-2 | ME221-C1-6 | 0.5 | no route | Vehicle speed sensor (SP1) | — | |
| W53 | OEM-E10-21 | ME221-C1-7 | 0.5 | no route | Fuel pump diagnostic (DI) | — |
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 (6)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | INJECTOR_BALLAST | ME221 | The 2JZ-GTE injectors (2JZ-GTE fuel injector) are low-impedance, but ME221 drives saturated (high-Z) injectors only. Add a ballast resistor pack in series with each injector, or use an ECU with low-Z / peak-and-hold injector drivers. |
| error | NET_MERGED | ME221-C1-4 + OEM-E9-15 + OEM-E9-19 | 2 different OEM functions share one net: OEM-E9-15 Injector 6; OEM-E9-19 Injector 2 |
| error | NET_MERGED | ME221-C1-63 + OEM-E9-16 + OEM-E9-20 | 2 different OEM functions share one net: OEM-E9-16 Injector 5; OEM-E9-20 Injector 1 |
| error | REQUIRED_UNMAPPED | OEM-E9-52 | Required OEM function "Ignition 6 (IGT6)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E9-53 | Required OEM function "Ignition 5 (IGT5)" (ignition_out) is not connected to the new ECU. |
| info | UNMAPPED | OEM | 8 optional OEM pins are not mapped: OEM-E10-1 Ignition switch (IGSW); OEM-E10-15 Electrical load sensor (ELS); OEM-E10-4 Brake switch (STP); OEM-E9-49 Knock sensor 2 (KNK2); OEM-E9-58 Ignition confirmation (IGF); OEM-E9-73 Fuel pressure-up VSV (FPU); OEM-E9-74 Purge VSV (EVAP); OEM-E9-76 Starter signal (STA) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-E10-33 | 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: unconfirmed. Confirm these before building: - Trigger pattern for Toyota 2JZ not found in the ECU's docs (Trigger-pattern list is only inside MEITE software, not published online) - Only 4 ignition outputs for 6 cylinders: wasted spark (pair coils per firing order) - Only 4 injector outputs for 6 injectors: batch / semi-sequential injection 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-E9 53: Ignition 5 (IGT5): no free ignition output on Motorsport Electronics ME221 - OEM-E9 52: Ignition 6 (IGT6): no free ignition output on Motorsport Electronics ME221 Not wired: - OEM-E10 33: Battery constant (BATT): Motorsport Electronics ME221 has no battery-constant input; not needed - OEM-E9 49: Knock sensor 2 (KNK2): no free knock input on Motorsport Electronics ME221 - OEM-E10 1: Ignition switch (IGSW): 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-E9 73: Fuel pressure-up VSV (FPU): no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E9 74: Purge VSV (EVAP): no free low_side/relay_control/heater_low_side/ls_hs/injector on Motorsport Electronics ME221 - OEM-E9 58: Ignition confirmation (IGF): no free frequency_in/switch_in on Motorsport Electronics ME221 - OEM-E10 15: Electrical load sensor (ELS): no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-E10 4: Brake switch (STP): no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-E9 76: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | ECUMASTER: ECU2JZ JZA80 2JZ-GTE adapter technical information (knock sensor count) | https://drive.google.com/file/d/15sTEetwLt0aKjuQo6aXODn4EBAkEJrtN/view | archive | 2026-10-05 | 6a4adabba0f5 |
| 4 | vendor_doc | Link SupraLink TS2JZX install manual (JZA80 2JZ-GTE non-VVT) | https://linkecu.com/documentation/TS2JZX.pdf | — | — | — |
| 4 | vendor_doc | Motorsport Electronics GEN2 ME221/ME360/ME442 wire-in pinout | https://motorsport-electronics.co.uk/onlinehelp/html/ME442ME360ME221GEN2Wire-InPinout.html | — | — | — |
| 4 | service_manual | Toyota FSM P1300 Igniter Circuit (2JZ-GTE) — IGT1-6 / IGF ECM terminals | http://97supraturbo.com/Trouble%20Codes/P1300%20Ignitor.pdf | — | — | — |