Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i → Motorsport Electronics ME442 (auto)
Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i — Motorsport Electronics — ME442
⚠ 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 | 3: read the Findings page before cutting any wire |
| Size of the job | 62 wires · 10 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-E2-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E3-16 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E3-7 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-E3-8 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | ME442-C1-15 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-14V-1 | ME442-C1-64 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E6-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E7-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | ME442-C1-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | ME442-C1-61 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | ME442-C1-89 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | ME442-C1-90 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E6-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E6-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E7-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | ME442-C1-52 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | ME442-C1-84 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E6-2 | ME442-C1-45 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E7-23 | ME442-C1-80 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E7-10 | ME442-C1-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E7-28 | ME442-C1-53 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E7-27 | ME442-C1-54 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E7-11 | ME442-C1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E7-12 | ME442-C1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E7-13 | ME442-C1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E6-5 | ME442-C1-63 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E6-6 | ME442-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E7-1 | ME442-C1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E7-2 | ME442-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E7-3 | ME442-C1-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E7-4 | ME442-C1-58 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E7-17 | ME442-C1-73 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E7-18 | ME442-C1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E7-19 | ME442-C1-74 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E7-20 | ME442-C1-44 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E6-15 | ME442-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E6-23 | ME442-C1-56 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E6-16 | ME442-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E6-24 | ME442-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E6-14 | ME442-C1-86 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E3-10 | ME442-C1-69 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E3-4 | ME442-C1-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E4-13 | ME442-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E2-25 | ME442-C1-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E2-26 | ME442-C1-42 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E6-3 | ME442-C1-72 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E6-4 | ME442-C1-43 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E3-5 | ME442-C1-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E3-6 | ME442-C1-75 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E5-12 | ME442-C1-40 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E6-7 | ME442-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E7-5 | ME442-C1-88 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E6-10 | ME442-C1-87 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E2-24 | ME442-C1-78 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E4-8 | ME442-C1-48 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E6-22 | ME442-C1-57 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E5-11 | ME442-C1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E5-5 | ME442-C1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E7-25 | ME442-C1-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E4-2 | ME442-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E4-5 | ME442-C1-62 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E4-6 | ME442-C1-34 | 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 | ME442-C1-15 | ME442-C1-10 | open (OL) | +12 V supply must not touch power ground | |
| 2 | ME442-C1-15 | ME442-C1-52 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | ME442-C1-10 | ME442-C1-45 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | ME442-C1-15 | ME442-C1-45 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 5 | ME442-C1-52 | ME442-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
ME442-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | COIL 4 | — | — | — | — | — | — | — | — |
| 10 | GROUND CHASSIS | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | EGT 1 | — | — | — | — | — | — | — | — |
| 12 | LOW SIDE 2 | — | W33 | — | 0.5 | OEM-E7-18 | — | — | — |
| 13 | LOW SIDE RELAY 15 | — | W48 | — | 0.5 | OEM-E3-5 | — | — | — |
| 14 | LSU +12V | — | — | — | — | — | — | — | — |
| 15 | IGN +12V | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 16 | LSU HEATER -VE | — | W43 | — | 0.5 | OEM-E4-13 | — | — | — |
| 17 | ANA VOLT 3 | — | W38 | — | 0.5 | OEM-E6-16 | — | — | — |
| 18 | ANA VOLT 4 | — | W39 | — | 0.5 | OEM-E6-24 | — | — | — |
| 19 | LSU UN | — | — | — | — | — | — | — | — |
| 2 | COIL 3 | — | W25 | — | 0.5 | OEM-E7-13 | — | — | — |
| 20 | LSU VM | — | — | — | — | — | — | — | — |
| 21 | CAN 1 HIGH | — | — | — | — | — | — | — | — |
| 22 | CAM A VR+ | — | W20 | — | 0.5 | OEM-E7-10 | — | — | — |
| 23 | CAM A VR- | — | — | — | — | — | — | — | — |
| 24 | SERIAL 1 GROUND | — | — | — | — | — | — | — | — |
| 25 | SERIAL 1 TX | — | — | — | — | — | — | — | — |
| 26 | ANA VOLT 1 | — | W36 | — | 0.5 | OEM-E6-15 | — | — | — |
| 27 | INJECTOR 8 | — | — | — | — | — | — | — | — |
| 28 | INJECTOR 5 | — | W30 | — | 0.5 | OEM-E7-3 | — | — | — |
| 29 | COIL 7 | — | — | — | — | — | — | — | — |
| 3 | INJECTOR 4 | — | W29 | — | 0.5 | OEM-E7-2 | — | — | — |
| 30 | COIL 8 | — | — | — | — | — | — | — | — |
| 31 | COIL 2 | — | W24 | — | 0.5 | OEM-E7-12 | — | — | — |
| 32 | COIL 1 | — | W23 | — | 0.5 | OEM-E7-11 | — | — | — |
| 33 | INJECTOR 3 | — | W28 | — | 0.5 | OEM-E7-1 | — | — | — |
| 34 | DIG_IN 6 | — | W62 | — | 0.5 | OEM-E4-6 | — | — | — |
| 35 | USB D+ | — | — | — | — | — | — | — | — |
| 36 | USB D- | — | — | — | — | — | — | — | — |
| 37 | LOW SIDE RELAY 11 | — | W44 | — | 0.5 | OEM-E2-25 | — | — | — |
| 38 | USB VBUS | — | — | — | — | — | — | — | — |
| 39 | LOW SIDE 6 | — | W42 | — | 0.5 | OEM-E3-4 | — | — | — |
| 4 | INJECTOR 2 | — | W27 | — | 0.5 | OEM-E6-6 | — | — | — |
| 40 | LOW SIDE RELAY 17 | — | W50 | — | 0.5 | OEM-E5-12 | — | — | — |
| 41 | USB GROUND | — | — | — | — | — | — | — | — |
| 42 | LOW SIDE RELAY 12 | — | W45 | — | 0.5 | OEM-E2-26 | — | — | — |
| 43 | LOW SIDE RELAY 14 | — | W47 | — | 0.5 | OEM-E6-4 | — | — | — |
| 44 | LOW SIDE 4 | — | W35 | — | 0.5 | OEM-E7-20 | — | — | — |
| 45 | 5V REF | — | W18 | — | 0.5 | OEM-E6-2 | — | — | — |
| 46 | 5V REF | — | — | — | — | — | — | — | — |
| 47 | ANA TEMP 4 | — | — | — | — | — | — | — | — |
| 48 | ANA VOLT 7 | — | W55 | — | 0.5 | OEM-E4-8 | — | — | — |
| 49 | LSU IA | — | — | — | — | — | — | — | — |
| 5 | DIG_IN 4 | — | W60 | — | 0.5 | OEM-E4-2 | — | — | — |
| 50 | LSU IP | — | — | — | — | — | — | — | — |
| 51 | CAN 1 LOW | — | — | — | — | — | — | — | — |
| 52 | SENSORS GROUND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 53 | KNOCK 1 SIGNAL | — | W21 | — | 0.5 | OEM-E7-28 | — | — | — |
| 54 | KNOCK 2 SIGNAL | — | W22 | — | 0.5 | OEM-E7-27 | — | — | — |
| 55 | SERIAL 1 RX | — | — | — | — | — | — | — | — |
| 56 | ANA VOLT 2 | — | W37 | — | 0.5 | OEM-E6-23 | — | — | — |
| 57 | ANA TEMP 2 | — | W56 | — | 0.5 | OEM-E6-22 | — | — | — |
| 58 | INJECTOR 6 | — | W31 | — | 0.5 | OEM-E7-4 | — | — | — |
| 59 | COIL 5 | — | — | — | — | — | — | — | — |
| 6 | DIG_IN 1 | — | W57 | — | 0.5 | OEM-E5-11 | — | — | — |
| 60 | COIL 6 | — | — | — | — | — | — | — | — |
| 61 | GROUND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 62 | DIG_IN 5 | — | W61 | — | 0.5 | OEM-E4-5 | — | — | — |
| 63 | INJECTOR 1 | — | W26 | — | 0.5 | OEM-E6-5 | — | — | — |
| 64 | VBAT | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
| 65 | H-BRIDGE A OUT 1 | — | — | — | — | — | — | — | — |
| 66 | H-BRIDGE A OUT 2 | — | — | — | — | — | — | — | — |
| 67 | Stepper 1 / A1 | — | — | — | — | — | — | — | — |
| 68 | Stepper 2 / A2 | — | — | — | — | — | — | — | — |
| 69 | LOW SIDE 5 | — | W41 | — | 0.5 | OEM-E3-10 | — | — | — |
| 7 | DIG_IN 2 | — | W58 | — | 0.5 | OEM-E5-5 | — | — | — |
| 70 | Stepper 3 / B1 | — | — | — | — | — | — | — | — |
| 71 | Stepper 4 / B2 | — | — | — | — | — | — | — | — |
| 72 | LOW SIDE RELAY 13 | — | W46 | — | 0.5 | OEM-E6-3 | — | — | — |
| 73 | LOW SIDE 1 | — | W32 | — | 0.5 | OEM-E7-17 | — | — | — |
| 74 | LOW SIDE 3 | — | W34 | — | 0.5 | OEM-E7-19 | — | — | — |
| 75 | LOW SIDE RELAY 16 | — | W49 | — | 0.5 | OEM-E3-6 | — | — | — |
| 76 | 5V REF | — | — | — | — | — | — | — | — |
| 77 | ANA TEMP 3 | — | — | — | — | — | — | — | — |
| 78 | ANA VOLT 6 | — | W54 | — | 0.5 | OEM-E2-24 | — | — | — |
| 79 | TACHOMETER | — | — | — | — | — | — | — | — |
| 8 | DIG_IN 3 | — | W59 | — | 0.5 | OEM-E7-25 | — | — | — |
| 80 | CRANK VR+ | — | W19 | — | 0.5 | OEM-E7-23 | — | — | — |
| 81 | CRANK VR- | — | — | — | — | — | — | — | — |
| 82 | CAM B VR+ | — | — | — | — | — | — | — | — |
| 83 | CAM B VR- | — | — | — | — | — | — | — | — |
| 84 | Sensor Ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 86 | ANA TEMP 1 | — | W40 | — | 0.5 | OEM-E6-14 | — | — | — |
| 87 | ANA VOLT 5 | — | W53 | — | 0.5 | OEM-E6-10 | — | — | — |
| 88 | INJECTOR 7 | — | W52 | — | 0.5 | OEM-E7-5 | — | — | — |
| 89 | GROUND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | LOW SIDE RELAY 18 | — | W51 | — | 0.5 | OEM-E6-7 | — | — | — |
| 90 | GROUND | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-E2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 13 | ETCS power (TBP, throttle bypass) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | O2 right rear (OXR2) | — | W54 | — | 0.5 | ME442-C1-78 | — | — | — |
| 25 | O2 heater right rear (HTR2) | — | W44 | — | 0.5 | ME442-C1-37 | — | — | — |
| 26 | O2 heater left rear (HTL2) | — | W45 | — | 0.5 | ME442-C1-42 | — | — | — |
OEM-E3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 10 | EFI main relay control (MREL) | — | W41 | — | 0.5 | ME442-C1-69 | — | — | — |
| 11 | Serial diagnostic (SIL) | — | — | — | — | — | — | — | — |
| 16 | EFI main relay (+B) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Fuel pump relay (FPR) | — | W42 | — | 0.5 | ME442-C1-39 | — | — | — |
| 5 | Fuel pump control (FC) | — | W48 | — | 0.5 | ME442-C1-13 | — | — | — |
| 6 | Check-engine lamp (W) | — | W49 | — | 0.5 | ME442-C1-75 | — | — | — |
| 7 | ETCS main relay (+BM) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 8 | EFI main relay (+B2) | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Ignition switch (IGSW) | — | — | — | — | — | — | — | — |
OEM-E4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 13 | A/C clutch relay (ACMG) | — | W43 | — | 0.5 | ME442-C1-16 | — | — | — |
| 18 | EVAP vapor pressure (PTNK) | — | — | — | — | — | — | — | — |
| 2 | Starter signal (STA) | — | W60 | — | 0.5 | ME442-C1-5 | — | — | — |
| 5 | Diagnostic/timing check (TC) | — | W61 | — | 0.5 | ME442-C1-62 | — | — | — |
| 6 | Stop light switch (STP) | — | W62 | — | 0.5 | ME442-C1-34 | — | — | — |
| 8 | O2 left rear (OXL2) | — | W55 | — | 0.5 | ME442-C1-48 | — | — | — |
OEM-E5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Vehicle speed sensor (SP2-) | — | W57 | — | 0.5 | ME442-C1-6 | — | — | — |
| 12 | Canister close valve (CCV) | — | W50 | — | 0.5 | ME442-C1-40 | — | — | — |
| 5 | Vehicle speed sensor (SP2+) | — | W58 | — | 0.5 | ME442-C1-7 | — | — | — |
OEM-E6
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Mass air flow (VG) | — | W53 | — | 0.5 | ME442-C1-87 | — | — | — |
| 11 | O2 right front (OXR1) | — | — | — | — | — | — | — | — |
| 12 | O2 left front (OXL1) | — | — | — | — | — | — | — | — |
| 14 | Coolant temperature (THW) | — | W40 | — | 0.5 | ME442-C1-86 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W36 | — | 0.5 | ME442-C1-26 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | W38 | — | 0.5 | ME442-C1-17 | — | — | — |
| 17 | Power ground (E1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor supply +5V (VC) | — | W18 | — | 0.5 | ME442-C1-45 | — | — | — |
| 22 | Intake air temperature (THA) | — | W56 | — | 0.5 | ME442-C1-57 | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W37 | — | 0.5 | ME442-C1-56 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | W39 | — | 0.5 | ME442-C1-18 | — | — | — |
| 3 | O2 heater right front (HTR) | — | W46 | — | 0.5 | ME442-C1-72 | — | — | — |
| 4 | O2 heater left front (HTL) | — | W47 | — | 0.5 | ME442-C1-43 | — | — | — |
| 5 | Injector 1 (#10) | — | W26 | — | 0.5 | ME442-C1-63 | — | — | — |
| 6 | Injector 2 (#20) | — | W27 | — | 0.5 | ME442-C1-4 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | W51 | — | 0.5 | ME442-C1-9 | — | — | — |
OEM-E7
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W28 | — | 0.5 | ME442-C1-33 | — | — | — |
| 10 | Cam position (G2) | — | W20 | — | 0.5 | ME442-C1-22 | — | — | — |
| 11 | Ignition 1 (IGT) | — | W23 | — | 0.5 | ME442-C1-32 | — | — | — |
| 12 | Ignition 2 (IGT2) | — | W24 | — | 0.5 | ME442-C1-31 | — | — | — |
| 13 | Ignition 3 (IGT3) | — | W25 | — | 0.5 | ME442-C1-2 | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W32 | — | 0.5 | ME442-C1-73 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W33 | — | 0.5 | ME442-C1-12 | — | — | — |
| 19 | ETCS throttle clutch - (CL-) | — | W34 | — | 0.5 | ME442-C1-74 | — | — | — |
| 2 | Injector 4 (#40) | — | W29 | — | 0.5 | ME442-C1-3 | — | — | — |
| 20 | ETCS throttle clutch + (CL+) | — | W35 | — | 0.5 | ME442-C1-44 | — | — | — |
| 21 | Power ground (E01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position return (NE-) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE) | — | W19 | — | 0.5 | ME442-C1-80 | — | — | — |
| 25 | Igniter feedback (IGF) | — | W59 | — | 0.5 | ME442-C1-8 | — | — | — |
| 27 | Knock sensor 2 (KNK2) | — | W22 | — | 0.5 | ME442-C1-54 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | W21 | — | 0.5 | ME442-C1-53 | — | — | — |
| 3 | Injector 5 (#50) | — | W30 | — | 0.5 | ME442-C1-28 | — | — | — |
| 4 | Injector 6 (#60) | — | W31 | — | 0.5 | ME442-C1-58 | — | — | — |
| 5 | ACIS intake VSV | — | W52 | — | 0.5 | ME442-C1-88 | — | — | — |
| 7 | ETCS throttle motor - (M-) | — | — | — | — | — | — | — | — |
| 8 | ETCS throttle motor + (M+) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-E6-18 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-E6-19 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-E7-22 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | ME442-C1-52 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | ME442-C1-84 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E2-13 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E3-16 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-E3-7 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-E3-8 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | ME442-C1-15 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | ME442-C1-64 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.85 | OEM-E6-17 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E7-21 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | ME442-C1-10 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | ME442-C1-61 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | ME442-C1-89 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | ME442-C1-90 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E2-13 | ETCS power (TBP, throttle bypass) | power_in | ME442-C1-15 + ME442-C1-64 | IGN +12V + VBAT | power_in | single_source | |
| OEM-E2-24 | O2 right rear (OXR2) | lambda_nb_in | ME442-C1-78 | ANA VOLT 6 | analog_in | single_source | |
| OEM-E2-25 | O2 heater right rear (HTR2) | low_side_out | ME442-C1-37 | LOW SIDE RELAY 11 | low_side_out | single_source | |
| OEM-E2-26 | O2 heater left rear (HTL2) | low_side_out | ME442-C1-42 | LOW SIDE RELAY 12 | low_side_out | single_source | |
| OEM-E3-1 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-E3-10 | EFI main relay control (MREL) | low_side_out | ME442-C1-69 | LOW SIDE 5 | low_side_out | single_source | |
| OEM-E3-11 | Serial diagnostic (SIL) | serial | — | — | — | single_source | |
| OEM-E3-16 | EFI main relay (+B) | power_in | ME442-C1-15 + ME442-C1-64 | IGN +12V + VBAT | power_in | single_source | |
| OEM-E3-4 | Fuel pump relay (FPR) | low_side_out | ME442-C1-39 | LOW SIDE 6 | low_side_out | single_source | |
| OEM-E3-5 | Fuel pump control (FC) | low_side_out | ME442-C1-13 | LOW SIDE RELAY 15 | low_side_out | single_source | |
| OEM-E3-6 | Check-engine lamp (W) | low_side_out | ME442-C1-75 | LOW SIDE RELAY 16 | low_side_out | single_source | |
| OEM-E3-7 | ETCS main relay (+BM) | power_in | ME442-C1-15 + ME442-C1-64 | IGN +12V + VBAT | power_in | single_source | |
| OEM-E3-8 | EFI main relay (+B2) | power_in | ME442-C1-15 + ME442-C1-64 | IGN +12V + VBAT | power_in | single_source | |
| OEM-E3-9 | Ignition switch (IGSW) | digital_in | — | — | — | single_source | |
| OEM-E4-13 | A/C clutch relay (ACMG) | low_side_out | ME442-C1-16 | LSU HEATER -VE | low_side_out | single_source | |
| OEM-E4-18 | EVAP vapor pressure (PTNK) | analog_in | — | — | — | single_source | |
| OEM-E4-2 | Starter signal (STA) | digital_in | ME442-C1-5 | DIG_IN 4 | digital_in | single_source | |
| OEM-E4-5 | Diagnostic/timing check (TC) | digital_in | ME442-C1-62 | DIG_IN 5 | digital_in | single_source | |
| OEM-E4-6 | Stop light switch (STP) | digital_in | ME442-C1-34 | DIG_IN 6 | digital_in | single_source | |
| OEM-E4-8 | O2 left rear (OXL2) | lambda_nb_in | ME442-C1-48 | ANA VOLT 7 | analog_in | single_source | |
| OEM-E5-11 | Vehicle speed sensor (SP2-) | digital_in | ME442-C1-6 | DIG_IN 1 | digital_in | single_source | |
| OEM-E5-12 | Canister close valve (CCV) | low_side_out | ME442-C1-40 | LOW SIDE RELAY 17 | low_side_out | single_source | |
| OEM-E5-5 | Vehicle speed sensor (SP2+) | digital_in | ME442-C1-7 | DIG_IN 2 | digital_in | single_source | |
| OEM-E6-10 | Mass air flow (VG) | analog_in | ME442-C1-87 | ANA VOLT 5 | analog_in | single_source | |
| OEM-E6-11 | O2 right front (OXR1) | lambda_nb_in | — | — | — | single_source | |
| OEM-E6-12 | O2 left front (OXL1) | lambda_nb_in | — | — | — | single_source | |
| OEM-E6-14 | Coolant temperature (THW) | temp_in | ME442-C1-86 | ANA TEMP 1 | temp_in | single_source | |
| OEM-E6-15 | Accelerator pedal 1 (VPA) | analog_in | ME442-C1-26 | ANA VOLT 1 | analog_in | single_source | |
| OEM-E6-16 | Accelerator pedal 2 (VPA2) | analog_in | ME442-C1-17 | ANA VOLT 3 | analog_in | single_source | |
| OEM-E6-17 | Power ground (E1) | ground | ME442-C1-10 + ME442-C1-61 + ME442-C1-89 + ME442-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-E6-18 | Sensor ground (E2) | sensor_ground | ME442-C1-52 + ME442-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | single_source | |
| OEM-E6-19 | MAF ground (EVG) | sensor_ground | ME442-C1-52 + ME442-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | single_source | |
| OEM-E6-2 | Sensor supply +5V (VC) | vref | ME442-C1-45 | 5V REF | vref | single_source | |
| OEM-E6-22 | Intake air temperature (THA) | temp_in | ME442-C1-57 | ANA TEMP 2 | temp_in | single_source | |
| OEM-E6-23 | Throttle position 1 (VTA) | analog_in | ME442-C1-56 | ANA VOLT 2 | analog_in | single_source | |
| OEM-E6-24 | Throttle position 2 (VTA2) | analog_in | ME442-C1-18 | ANA VOLT 4 | analog_in | single_source | |
| OEM-E6-3 | O2 heater right front (HTR) | low_side_out | ME442-C1-72 | LOW SIDE RELAY 13 | low_side_out | single_source | |
| OEM-E6-4 | O2 heater left front (HTL) | low_side_out | ME442-C1-43 | LOW SIDE RELAY 14 | low_side_out | single_source | |
| OEM-E6-5 | Injector 1 (#10) | injector_out | ME442-C1-63 | INJECTOR 1 | injector_out | single_source | |
| OEM-E6-6 | Injector 2 (#20) | injector_out | ME442-C1-4 | INJECTOR 2 | injector_out | single_source | |
| OEM-E6-7 | EVAP purge VSV (PRG) | low_side_out | ME442-C1-9 | LOW SIDE RELAY 18 | low_side_out | single_source | |
| OEM-E7-1 | Injector 3 (#30) | injector_out | ME442-C1-33 | INJECTOR 3 | injector_out | single_source | |
| OEM-E7-10 | Cam position (G2) | trigger_in | ME442-C1-22 | CAM A VR+ | trigger_in | single_source | |
| OEM-E7-11 | Ignition 1 (IGT) | ignition_out | ME442-C1-32 | COIL 1 | ignition_out | single_source | |
| OEM-E7-12 | Ignition 2 (IGT2) | ignition_out | ME442-C1-31 | COIL 2 | ignition_out | single_source | |
| OEM-E7-13 | Ignition 3 (IGT3) | ignition_out | ME442-C1-2 | COIL 3 | ignition_out | single_source | |
| OEM-E7-17 | VVT-i OCV - (OCV-) | low_side_out | ME442-C1-73 | LOW SIDE 1 | low_side_out | single_source | |
| OEM-E7-18 | VVT-i OCV + (OCV+) | low_side_out | ME442-C1-12 | LOW SIDE 2 | low_side_out | single_source | |
| OEM-E7-19 | ETCS throttle clutch - (CL-) | low_side_out | ME442-C1-74 | LOW SIDE 3 | low_side_out | single_source | |
| OEM-E7-2 | Injector 4 (#40) | injector_out | ME442-C1-3 | INJECTOR 4 | injector_out | single_source | |
| OEM-E7-20 | ETCS throttle clutch + (CL+) | low_side_out | ME442-C1-44 | LOW SIDE 4 | low_side_out | single_source | |
| OEM-E7-21 | Power ground (E01) | ground | ME442-C1-10 + ME442-C1-61 + ME442-C1-89 + ME442-C1-90 | GROUND CHASSIS + GROUND + GROUND + GROUND | ground | single_source | |
| OEM-E7-22 | Crank position return (NE-) | sensor_ground | ME442-C1-52 + ME442-C1-84 | SENSORS GROUND + Sensor Ground | sensor_ground | single_source | |
| OEM-E7-23 | Crank position (NE) | trigger_in | ME442-C1-80 | CRANK VR+ | trigger_in | single_source | |
| OEM-E7-25 | Igniter feedback (IGF) | digital_in | ME442-C1-8 | DIG_IN 3 | digital_in | single_source | |
| OEM-E7-27 | Knock sensor 2 (KNK2) | knock_in | ME442-C1-54 | KNOCK 2 SIGNAL | knock_in | single_source | |
| OEM-E7-28 | Knock sensor 1 (KNK1) | knock_in | ME442-C1-53 | KNOCK 1 SIGNAL | knock_in | single_source | |
| OEM-E7-3 | Injector 5 (#50) | injector_out | ME442-C1-28 | INJECTOR 5 | injector_out | single_source | |
| OEM-E7-4 | Injector 6 (#60) | injector_out | ME442-C1-58 | INJECTOR 6 | injector_out | single_source | |
| OEM-E7-5 | ACIS intake VSV | low_side_out | ME442-C1-88 | INJECTOR 7 | injector_out | single_source | |
| OEM-E7-7 | ETCS throttle motor - (M-) | hbridge_out | — | — | — | single_source | |
| OEM-E7-8 | ETCS throttle motor + (M+) | hbridge_out | — | — | — | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E2-13 | SP-14V-1 | 0.85 | no route | ETCS power (TBP, throttle bypass) | — | |
| W2 | OEM-E3-16 | SP-14V-1 | 0.85 | no route | EFI main relay (+B) | — | |
| W3 | OEM-E3-7 | SP-14V-1 | 0.85 | no route | ETCS main relay (+BM) | — | |
| W4 | OEM-E3-8 | SP-14V-1 | 0.85 | no route | EFI main relay (+B2) | — | |
| W5 | SP-14V-1 | ME442-C1-15 | 0.85 | no route | IGN +12V | — | |
| W6 | SP-14V-1 | ME442-C1-64 | 0.85 | no route | VBAT | — | |
| W7 | OEM-E6-17 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W8 | OEM-E7-21 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W9 | SP-GND-1 | ME442-C1-10 | 0.85 | no route | GROUND CHASSIS | — | |
| W10 | SP-GND-1 | ME442-C1-61 | 0.85 | no route | GROUND | — | |
| W11 | SP-GND-1 | ME442-C1-89 | 0.85 | no route | GROUND | — | |
| W12 | SP-GND-1 | ME442-C1-90 | 0.85 | no route | GROUND | — | |
| W13 | OEM-E6-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W14 | OEM-E6-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W15 | OEM-E7-22 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W16 | SP-0V-1 | ME442-C1-52 | 0.5 | no route | SENSORS GROUND | — | |
| W17 | SP-0V-1 | ME442-C1-84 | 0.5 | no route | Sensor Ground | — | |
| W18 | OEM-E6-2 | ME442-C1-45 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W19 | OEM-E7-23 | ME442-C1-80 | 0.5 | no route | Crank position (NE) | — | |
| W20 | OEM-E7-10 | ME442-C1-22 | 0.5 | no route | Cam position (G2) | — | |
| W21 | OEM-E7-28 | ME442-C1-53 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W22 | OEM-E7-27 | ME442-C1-54 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W23 | OEM-E7-11 | ME442-C1-32 | 0.5 | no route | Ignition 1 (IGT) | — | |
| W24 | OEM-E7-12 | ME442-C1-31 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W25 | OEM-E7-13 | ME442-C1-2 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W26 | OEM-E6-5 | ME442-C1-63 | 0.5 | no route | Injector 1 (#10) | — | |
| W27 | OEM-E6-6 | ME442-C1-4 | 0.5 | no route | Injector 2 (#20) | — | |
| W28 | OEM-E7-1 | ME442-C1-33 | 0.5 | no route | Injector 3 (#30) | — | |
| W29 | OEM-E7-2 | ME442-C1-3 | 0.5 | no route | Injector 4 (#40) | — | |
| W30 | OEM-E7-3 | ME442-C1-28 | 0.5 | no route | Injector 5 (#50) | — | |
| W31 | OEM-E7-4 | ME442-C1-58 | 0.5 | no route | Injector 6 (#60) | — | |
| W32 | OEM-E7-17 | ME442-C1-73 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W33 | OEM-E7-18 | ME442-C1-12 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W34 | OEM-E7-19 | ME442-C1-74 | 0.5 | no route | ETCS throttle clutch - (CL-) | — | |
| W35 | OEM-E7-20 | ME442-C1-44 | 0.5 | no route | ETCS throttle clutch + (CL+) | — | |
| W36 | OEM-E6-15 | ME442-C1-26 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W37 | OEM-E6-23 | ME442-C1-56 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W38 | OEM-E6-16 | ME442-C1-17 | 0.5 | no route | Accelerator pedal 2 (VPA2) | — | |
| W39 | OEM-E6-24 | ME442-C1-18 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W40 | OEM-E6-14 | ME442-C1-86 | 0.5 | no route | Coolant temperature (THW) | — | |
| W41 | OEM-E3-10 | ME442-C1-69 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W42 | OEM-E3-4 | ME442-C1-39 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W43 | OEM-E4-13 | ME442-C1-16 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W44 | OEM-E2-25 | ME442-C1-37 | 0.5 | no route | O2 heater right rear (HTR2) | — | |
| W45 | OEM-E2-26 | ME442-C1-42 | 0.5 | no route | O2 heater left rear (HTL2) | — | |
| W46 | OEM-E6-3 | ME442-C1-72 | 0.5 | no route | O2 heater right front (HTR) | — | |
| W47 | OEM-E6-4 | ME442-C1-43 | 0.5 | no route | O2 heater left front (HTL) | — | |
| W48 | OEM-E3-5 | ME442-C1-13 | 0.5 | no route | Fuel pump control (FC) | — | |
| W49 | OEM-E3-6 | ME442-C1-75 | 0.5 | no route | Check-engine lamp (W) | — | |
| W50 | OEM-E5-12 | ME442-C1-40 | 0.5 | no route | Canister close valve (CCV) | — | |
| W51 | OEM-E6-7 | ME442-C1-9 | 0.5 | no route | EVAP purge VSV (PRG) | — | |
| W52 | OEM-E7-5 | ME442-C1-88 | 0.5 | no route | ACIS intake VSV | — | |
| W53 | OEM-E6-10 | ME442-C1-87 | 0.5 | no route | Mass air flow (VG) | — | |
| W54 | OEM-E2-24 | ME442-C1-78 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W55 | OEM-E4-8 | ME442-C1-48 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W56 | OEM-E6-22 | ME442-C1-57 | 0.5 | no route | Intake air temperature (THA) | — | |
| W57 | OEM-E5-11 | ME442-C1-6 | 0.5 | no route | Vehicle speed sensor (SP2-) | — | |
| W58 | OEM-E5-5 | ME442-C1-7 | 0.5 | no route | Vehicle speed sensor (SP2+) | — | |
| W59 | OEM-E7-25 | ME442-C1-8 | 0.5 | no route | Igniter feedback (IGF) | — | |
| W60 | OEM-E4-2 | ME442-C1-5 | 0.5 | no route | Starter signal (STA) | — | |
| W61 | OEM-E4-5 | ME442-C1-62 | 0.5 | no route | Diagnostic/timing check (TC) | — | |
| W62 | OEM-E4-6 | ME442-C1-34 | 0.5 | no route | Stop light switch (STP) | — |
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 | REQUIRED_UNMAPPED | OEM-E3-9 | Required OEM function "Ignition switch (IGSW)" (digital_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E7-7 | Required OEM function "ETCS throttle motor - (M-)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E7-8 | Required OEM function "ETCS throttle motor + (M+)" (hbridge_out) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | ME442-C1-16 | ME442-C1-16 "LSU HEATER -VE" drives OEM-E4-13 A/C clutch relay (ACMG) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| info | NET_FAMILY | OEM-E7-5 ↔ ME442-C1-88 | OEM-E7-5 "ACIS intake VSV" [low_side_out] is wired to ME442-C1-88 "INJECTOR 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 4 optional OEM pins are not mapped: OEM-E3-11 Serial diagnostic (SIL); OEM-E4-18 EVAP vapor pressure (PTNK); OEM-E6-11 O2 right front (OXR1); OEM-E6-12 O2 left front (OXL1) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-E3-1 | 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: 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) 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-E3 9: 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 ME442 has no dedicated key-on input - OEM-E7 7: ETCS throttle motor - (M-): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-E7 8: ETCS throttle motor + (M+): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand Not wired: - OEM-E3 1: Battery constant (BATT): Motorsport Electronics ME442 has no battery-constant input; not needed - OEM-E6 11: O2 right front (OXR1): no free o2_narrowband/analog_0_5 on Motorsport Electronics ME442 - OEM-E6 12: O2 left front (OXL1): no free o2_narrowband/analog_0_5 on Motorsport Electronics ME442 - OEM-E4 18: EVAP vapor pressure (PTNK): no free analog_0_5 on Motorsport Electronics ME442 - OEM-E3 11: Serial diagnostic (SIL): no free k_line on Motorsport Electronics ME442
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 | service_manual | Toyota FSM RM779U (2001 Lexus IS300) — DIAGNOSTICS 'TERMINALS OF ECM' (DI-20/21) | http://www.2jzgarage.com/wp-content/uploads/2013/04/2001_IS300_ECU_Pinouts.pdf | — | — | — |