Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i → AMP EFI MS3Pro Ultimate (auto)
Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i — AMP EFI — MS3Pro Ultimate
⚠ 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 | 2: read the Findings page before cutting any wire |
| Size of the job | 74 wires · 12 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 | MS3PROULTIMA-A-35 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E3-1 | MS3PROULTIMA-C-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E6-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E7-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | MS3PROULTIMA-A-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | MS3PROULTIMA-B-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | MS3PROULTIMA-B-3 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | MS3PROULTIMA-B-5 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | MS3PROULTIMA-B-7 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | MS3PROULTIMA-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E6-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E6-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E7-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | MS3PROULTIMA-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | MS3PROULTIMA-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | MS3PROULTIMA-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | MS3PROULTIMA-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | MS3PROULTIMA-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | MS3PROULTIMA-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-0V-1 | MS3PROULTIMA-C-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E6-2 | MS3PROULTIMA-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E7-23 | MS3PROULTIMA-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-0V-1 | MS3PROULTIMA-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E7-10 | MS3PROULTIMA-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | SP-0V-1 | MS3PROULTIMA-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E7-28 | MS3PROULTIMA-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E7-27 | MS3PROULTIMA-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E7-11 | MS3PROULTIMA-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E7-12 | MS3PROULTIMA-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E7-13 | MS3PROULTIMA-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E6-5 | MS3PROULTIMA-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E6-6 | MS3PROULTIMA-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E7-1 | MS3PROULTIMA-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E7-2 | MS3PROULTIMA-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E7-3 | MS3PROULTIMA-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E7-4 | MS3PROULTIMA-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E3-9 | MS3PROULTIMA-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E7-17 | MS3PROULTIMA-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E7-18 | MS3PROULTIMA-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E7-19 | MS3PROULTIMA-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E7-20 | MS3PROULTIMA-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E6-15 | MS3PROULTIMA-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E6-23 | MS3PROULTIMA-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E6-16 | MS3PROULTIMA-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E6-24 | MS3PROULTIMA-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E6-14 | MS3PROULTIMA-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E3-10 | MS3PROULTIMA-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E3-4 | MS3PROULTIMA-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E4-13 | MS3PROULTIMA-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E2-25 | MS3PROULTIMA-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E2-26 | MS3PROULTIMA-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E6-3 | MS3PROULTIMA-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E6-4 | MS3PROULTIMA-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E3-5 | MS3PROULTIMA-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-E3-6 | MS3PROULTIMA-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-E5-12 | MS3PROULTIMA-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E6-7 | MS3PROULTIMA-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-E6-10 | MS3PROULTIMA-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-E2-24 | MS3PROULTIMA-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-E4-8 | MS3PROULTIMA-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-E6-11 | MS3PROULTIMA-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-E6-12 | MS3PROULTIMA-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-E6-22 | MS3PROULTIMA-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-E4-18 | MS3PROULTIMA-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-E5-11 | MS3PROULTIMA-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-E5-5 | MS3PROULTIMA-B-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-E7-25 | MS3PROULTIMA-B-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-E4-2 | MS3PROULTIMA-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-E4-5 | MS3PROULTIMA-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-E4-6 | MS3PROULTIMA-B-29 | 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 | MS3PROULTIMA-A-35 | MS3PROULTIMA-A-13 | open (OL) | +12 V supply must not touch power ground | |
| 2 | MS3PROULTIMA-A-35 | MS3PROULTIMA-A-15 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | MS3PROULTIMA-C-23 | MS3PROULTIMA-A-13 | open (OL) | +12 V supply must not touch power ground | |
| 4 | MS3PROULTIMA-C-23 | MS3PROULTIMA-A-15 | open (OL) | +12 V supply must not touch sensor ground | |
| 5 | MS3PROULTIMA-A-13 | MS3PROULTIMA-A-8 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | MS3PROULTIMA-A-15 | MS3PROULTIMA-A-8 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 7 | MS3PROULTIMA-A-35 | MS3PROULTIMA-A-8 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | MS3PROULTIMA-C-23 | MS3PROULTIMA-A-8 | 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
MS3PROULTIMA-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | High current out 1 | — | W55 | — | 0.5 | OEM-E2-26 | — | — | — |
| 10 | MAT in | — | W67 | — | 0.5 | OEM-E6-22 | — | — | — |
| 11 | CLT in | — | W50 | — | 0.5 | OEM-E6-14 | — | — | — |
| 12 | Analog In 6 | — | W65 | — | 0.5 | OEM-E6-11 | — | — | — |
| 13 | Power ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | PWM / Idle Out 1 | — | W42 | — | 0.5 | OEM-E7-17 | — | — | — |
| 15 | CKP− | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Logic ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | Analog In 7 | — | W66 | — | 0.5 | OEM-E6-12 | — | — | — |
| 18 | Sensor return | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Analog in 1 | — | W47 | — | 0.5 | OEM-E6-23 | — | — | — |
| 2 | High current out 2 | — | W56 | — | 0.5 | OEM-E6-3 | — | — | — |
| 20 | Analog in 2 | — | W48 | — | 0.5 | OEM-E6-16 | — | — | — |
| 21 | Analog in 3 | — | W49 | — | 0.5 | OEM-E6-24 | — | — | — |
| 22 | Analog In 4 | — | W62 | — | 0.5 | OEM-E6-10 | — | — | — |
| 23 | Analog In 5 | — | W64 | — | 0.5 | OEM-E4-8 | — | — | — |
| 24 | Tach out | — | — | — | — | — | — | — | — |
| 25 | O2 in | — | W63 | — | 0.5 | OEM-E2-24 | — | — | — |
| 26 | CMP+ | — | W28 | — | 0.5 | OEM-E7-10 | — | — | — |
| 27 | CMP− | — | W29 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Fuel pump relay out | — | W51 | — | 0.5 | OEM-E3-10 | — | — | — |
| 29 | PWM out 2 | — | W44 | — | 0.5 | OEM-E7-19 | — | — | — |
| 3 | Injector out J | — | W35 | — | 0.5 | OEM-E6-5 | — | — | — |
| 30 | PWM out 3 | — | W52 | — | 0.5 | OEM-E3-4 | — | — | — |
| 31 | Knock in 1 | — | W30 | — | 0.5 | OEM-E7-28 | — | — | — |
| 32 | Digital switched in 1 | — | W72 | — | 0.5 | OEM-E4-2 | — | — | — |
| 33 | CAN L | — | — | — | — | — | — | — | — |
| 34 | CAN H | — | — | — | — | — | — | — | — |
| 35 | 12V+ switched power in | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Injector out I | — | W36 | — | 0.5 | OEM-E6-6 | — | — | — |
| 5 | High current out 3 | — | W57 | — | 0.5 | OEM-E6-4 | — | — | — |
| 6 | CKP+ | — | W26 | — | 0.5 | OEM-E7-23 | — | — | — |
| 7 | Knock In 2 | — | W31 | — | 0.5 | OEM-E7-27 | — | — | — |
| 8 | 5V+ VREF out 1 | — | W25 | — | 0.5 | OEM-E6-2 | — | — | — |
| 9 | TPS in | — | W46 | — | 0.5 | OEM-E6-15 | — | — | — |
MS3PROULTIMA-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector out A | — | W37 | — | 0.5 | OEM-E7-1 | — | — | — |
| 10 | Injector out F | — | W38 | — | 0.5 | OEM-E7-2 | — | — | — |
| 11 | Injector out G | — | W39 | — | 0.5 | OEM-E7-3 | — | — | — |
| 12 | Injector out H | — | W40 | — | 0.5 | OEM-E7-4 | — | — | — |
| 13 | Spark out G | — | W32 | — | 0.5 | OEM-E7-11 | — | — | — |
| 14 | Spark out E | — | W33 | — | 0.5 | OEM-E7-12 | — | — | — |
| 15 | Spark out C | — | W34 | — | 0.5 | OEM-E7-13 | — | — | — |
| 16 | Spark out H | — | — | — | — | — | — | — | — |
| 17 | Digital frequency in 2 | — | — | — | — | — | — | — | — |
| 18 | Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Digital switched 12V in | — | W41 | — | 0.5 | OEM-E3-9 | — | — | — |
| 2 | Injector out B | — | W58 | — | 0.5 | OEM-E3-5 | — | — | — |
| 20 | Digital switched in 2 | — | W73 | — | 0.5 | OEM-E4-5 | — | — | — |
| 21 | Digital frequency in 3 | — | — | — | — | — | — | — | — |
| 22 | Digital Frequency in 3 VR+ | — | — | — | — | — | — | — | — |
| 23 | Digital Frequency In 3 VR− | — | — | — | — | — | — | — | — |
| 24 | Spark out F | — | — | — | — | — | — | — | — |
| 25 | Spark out B | — | — | — | — | — | — | — | — |
| 26 | Spark out D | — | — | — | — | — | — | — | — |
| 27 | Spark out A | — | — | — | — | — | — | — | — |
| 28 | Digital frequency in 1 | — | W69 | — | 0.5 | OEM-E5-11 | — | — | — |
| 29 | Digital switched in 3 | — | W74 | — | 0.5 | OEM-E4-6 | — | — | — |
| 3 | Ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Stepper IAC out 1B | — | — | — | — | — | — | — | — |
| 31 | Stepper IAC out 1A | — | — | — | — | — | — | — | — |
| 32 | Stepper IAC out 2A | — | — | — | — | — | — | — | — |
| 33 | Stepper IAC out 2B | — | — | — | — | — | — | — | — |
| 34 | Digital Frequency in 1 VR+ | — | W70 | — | 0.5 | OEM-E5-5 | — | — | — |
| 35 | Digital Frequency in 1 VR− | — | W71 | — | 0.5 | OEM-E7-25 | — | — | — |
| 4 | Injector out C | — | W59 | — | 0.5 | OEM-E3-6 | — | — | — |
| 5 | Ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Injector out D | — | W60 | — | 0.5 | OEM-E5-12 | — | — | — |
| 7 | Ground | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Injector out E | — | W61 | — | 0.5 | OEM-E6-7 | — | — | — |
| 9 | Ground | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
MS3PROULTIMA-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PWM out 5 | — | W54 | — | 0.5 | OEM-E2-25 | — | — | — |
| 10 | Digital switched in 5 | — | — | — | — | — | — | — | — |
| 11 | Digital switched in 4 | — | — | — | — | — | — | — | — |
| 12 | Digital I/O 5 | — | — | — | — | — | — | — | — |
| 13 | Digital I/O 3 | — | — | — | — | — | — | — | — |
| 14 | Digital I/O 1 | — | — | — | — | — | — | — | — |
| 15 | 5V+ VREF out 2 | — | — | — | — | — | — | — | — |
| 16 | Fuel only battery 12V+ | — | — | — | — | — | — | — | — |
| 17 | Sensor return | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Sensor return | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor return | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | PWM out 4 | — | W53 | — | 0.5 | OEM-E4-13 | — | — | — |
| 20 | Sensor return | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Sensor return | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | 5V+ VREF out 1 | — | — | — | — | — | — | — | — |
| 23 | Keep alive power | — | W6 | — | 0.85 | OEM-E3-1 | — | — | — |
| 3 | Digital out 2 | — | W45 | — | 0.5 | OEM-E7-20 | — | — | — |
| 4 | Digital out 1 | — | W43 | — | 0.5 | OEM-E7-18 | — | — | — |
| 5 | Digital I/O 4 | — | — | — | — | — | — | — | — |
| 6 | Digital I/O 2 | — | — | — | — | — | — | — | — |
| 7 | Analog in 8 | — | W68 | — | 0.5 | OEM-E4-18 | — | — | — |
| 8 | 5V+ VREF out 2 | — | — | — | — | — | — | — | — |
| 9 | Fuel only coil negative | — | — | — | — | — | — | — | — |
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) | — | W63 | — | 0.5 | MS3PROULTIMA-A-25 | — | — | — |
| 25 | O2 heater right rear (HTR2) | — | W54 | — | 0.5 | MS3PROULTIMA-C-1 | — | — | — |
| 26 | O2 heater left rear (HTL2) | — | W55 | — | 0.5 | MS3PROULTIMA-A-1 | — | — | — |
OEM-E3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery constant (BATT) | — | W6 | — | 0.85 | MS3PROULTIMA-C-23 | — | — | — |
| 10 | EFI main relay control (MREL) | — | W51 | — | 0.5 | MS3PROULTIMA-A-28 | — | — | — |
| 11 | Serial diagnostic (SIL) | — | — | — | — | — | — | — | — |
| 16 | EFI main relay (+B) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Fuel pump relay (FPR) | — | W52 | — | 0.5 | MS3PROULTIMA-A-30 | — | — | — |
| 5 | Fuel pump control (FC) | — | W58 | — | 0.5 | MS3PROULTIMA-B-2 | — | — | — |
| 6 | Check-engine lamp (W) | — | W59 | — | 0.5 | MS3PROULTIMA-B-4 | — | — | — |
| 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) | — | W41 | — | 0.5 | MS3PROULTIMA-B-19 | — | — | — |
OEM-E4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 13 | A/C clutch relay (ACMG) | — | W53 | — | 0.5 | MS3PROULTIMA-C-2 | — | — | — |
| 18 | EVAP vapor pressure (PTNK) | — | W68 | — | 0.5 | MS3PROULTIMA-C-7 | — | — | — |
| 2 | Starter signal (STA) | — | W72 | — | 0.5 | MS3PROULTIMA-A-32 | — | — | — |
| 5 | Diagnostic/timing check (TC) | — | W73 | — | 0.5 | MS3PROULTIMA-B-20 | — | — | — |
| 6 | Stop light switch (STP) | — | W74 | — | 0.5 | MS3PROULTIMA-B-29 | — | — | — |
| 8 | O2 left rear (OXL2) | — | W64 | — | 0.5 | MS3PROULTIMA-A-23 | — | — | — |
OEM-E5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Vehicle speed sensor (SP2-) | — | W69 | — | 0.5 | MS3PROULTIMA-B-28 | — | — | — |
| 12 | Canister close valve (CCV) | — | W60 | — | 0.5 | MS3PROULTIMA-B-6 | — | — | — |
| 5 | Vehicle speed sensor (SP2+) | — | W70 | — | 0.5 | MS3PROULTIMA-B-34 | — | — | — |
OEM-E6
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Mass air flow (VG) | — | W62 | — | 0.5 | MS3PROULTIMA-A-22 | — | — | — |
| 11 | O2 right front (OXR1) | — | W65 | — | 0.5 | MS3PROULTIMA-A-12 | — | — | — |
| 12 | O2 left front (OXL1) | — | W66 | — | 0.5 | MS3PROULTIMA-A-17 | — | — | — |
| 14 | Coolant temperature (THW) | — | W50 | — | 0.5 | MS3PROULTIMA-A-11 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W46 | — | 0.5 | MS3PROULTIMA-A-9 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | W48 | — | 0.5 | MS3PROULTIMA-A-20 | — | — | — |
| 17 | Power ground (E1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor supply +5V (VC) | — | W25 | — | 0.5 | MS3PROULTIMA-A-8 | — | — | — |
| 22 | Intake air temperature (THA) | — | W67 | — | 0.5 | MS3PROULTIMA-A-10 | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W47 | — | 0.5 | MS3PROULTIMA-A-19 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | W49 | — | 0.5 | MS3PROULTIMA-A-21 | — | — | — |
| 3 | O2 heater right front (HTR) | — | W56 | — | 0.5 | MS3PROULTIMA-A-2 | — | — | — |
| 4 | O2 heater left front (HTL) | — | W57 | — | 0.5 | MS3PROULTIMA-A-5 | — | — | — |
| 5 | Injector 1 (#10) | — | W35 | — | 0.5 | MS3PROULTIMA-A-3 | — | — | — |
| 6 | Injector 2 (#20) | — | W36 | — | 0.5 | MS3PROULTIMA-A-4 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | W61 | — | 0.5 | MS3PROULTIMA-B-8 | — | — | — |
OEM-E7
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W37 | — | 0.5 | MS3PROULTIMA-B-1 | — | — | — |
| 10 | Cam position (G2) | — | W28 | — | 0.5 | MS3PROULTIMA-A-26 | — | — | — |
| 11 | Ignition 1 (IGT) | — | W32 | — | 0.5 | MS3PROULTIMA-B-13 | — | — | — |
| 12 | Ignition 2 (IGT2) | — | W33 | — | 0.5 | MS3PROULTIMA-B-14 | — | — | — |
| 13 | Ignition 3 (IGT3) | — | W34 | — | 0.5 | MS3PROULTIMA-B-15 | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W42 | — | 0.5 | MS3PROULTIMA-A-14 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W43 | — | 0.5 | MS3PROULTIMA-C-4 | — | — | — |
| 19 | ETCS throttle clutch - (CL-) | — | W44 | — | 0.5 | MS3PROULTIMA-A-29 | — | — | — |
| 2 | Injector 4 (#40) | — | W38 | — | 0.5 | MS3PROULTIMA-B-10 | — | — | — |
| 20 | ETCS throttle clutch + (CL+) | — | W45 | — | 0.5 | MS3PROULTIMA-C-3 | — | — | — |
| 21 | Power ground (E01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position return (NE-) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE) | — | W26 | — | 0.5 | MS3PROULTIMA-A-6 | — | — | — |
| 25 | Igniter feedback (IGF) | — | W71 | — | 0.5 | MS3PROULTIMA-B-35 | — | — | — |
| 27 | Knock sensor 2 (KNK2) | — | W31 | — | 0.5 | MS3PROULTIMA-A-7 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | W30 | — | 0.5 | MS3PROULTIMA-A-31 | — | — | — |
| 3 | Injector 5 (#50) | — | W39 | — | 0.5 | MS3PROULTIMA-B-11 | — | — | — |
| 4 | Injector 6 (#60) | — | W40 | — | 0.5 | MS3PROULTIMA-B-12 | — | — | — |
| 5 | ACIS intake VSV | — | — | — | — | — | — | — | — |
| 7 | ETCS throttle motor - (M-) | — | — | — | — | — | — | — | — |
| 8 | ETCS throttle motor + (M+) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-E6-18 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-E6-19 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-E7-22 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | MS3PROULTIMA-A-16 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | MS3PROULTIMA-A-18 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | MS3PROULTIMA-C-17 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | MS3PROULTIMA-C-18 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | MS3PROULTIMA-C-19 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | MS3PROULTIMA-C-20 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | MS3PROULTIMA-C-21 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | MS3PROULTIMA-A-15 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | MS3PROULTIMA-A-27 | — | — | — |
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 | MS3PROULTIMA-A-35 | — | — | — |
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 | MS3PROULTIMA-A-13 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MS3PROULTIMA-B-18 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | MS3PROULTIMA-B-3 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | MS3PROULTIMA-B-5 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | MS3PROULTIMA-B-7 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | MS3PROULTIMA-B-9 | — | — | — |
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 | MS3PROULTIMA-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-E2-24 | O2 right rear (OXR2) | lambda_nb_in | MS3PROULTIMA-A-25 | O2 in | lambda_nb_in | single_source | |
| OEM-E2-25 | O2 heater right rear (HTR2) | low_side_out | MS3PROULTIMA-C-1 | PWM out 5 | low_side_out | single_source | |
| OEM-E2-26 | O2 heater left rear (HTL2) | low_side_out | MS3PROULTIMA-A-1 | High current out 1 | low_side_out | single_source | |
| OEM-E3-1 | Battery constant (BATT) | power_in | MS3PROULTIMA-C-23 | Keep alive power | power_in | single_source | |
| OEM-E3-10 | EFI main relay control (MREL) | low_side_out | MS3PROULTIMA-A-28 | Fuel pump relay out | low_side_out | single_source | |
| OEM-E3-11 | Serial diagnostic (SIL) | serial | — | — | — | single_source | |
| OEM-E3-16 | EFI main relay (+B) | power_in | MS3PROULTIMA-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-E3-4 | Fuel pump relay (FPR) | low_side_out | MS3PROULTIMA-A-30 | PWM out 3 | low_side_out | single_source | |
| OEM-E3-5 | Fuel pump control (FC) | low_side_out | MS3PROULTIMA-B-2 | Injector out B | injector_out | single_source | |
| OEM-E3-6 | Check-engine lamp (W) | low_side_out | MS3PROULTIMA-B-4 | Injector out C | injector_out | single_source | |
| OEM-E3-7 | ETCS main relay (+BM) | power_in | MS3PROULTIMA-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-E3-8 | EFI main relay (+B2) | power_in | MS3PROULTIMA-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-E3-9 | Ignition switch (IGSW) | digital_in | MS3PROULTIMA-B-19 | Digital switched 12V in | digital_in | single_source | |
| OEM-E4-13 | A/C clutch relay (ACMG) | low_side_out | MS3PROULTIMA-C-2 | PWM out 4 | low_side_out | single_source | |
| OEM-E4-18 | EVAP vapor pressure (PTNK) | analog_in | MS3PROULTIMA-C-7 | Analog in 8 | analog_in | single_source | |
| OEM-E4-2 | Starter signal (STA) | digital_in | MS3PROULTIMA-A-32 | Digital switched in 1 | digital_in | single_source | |
| OEM-E4-5 | Diagnostic/timing check (TC) | digital_in | MS3PROULTIMA-B-20 | Digital switched in 2 | digital_in | single_source | |
| OEM-E4-6 | Stop light switch (STP) | digital_in | MS3PROULTIMA-B-29 | Digital switched in 3 | digital_in | single_source | |
| OEM-E4-8 | O2 left rear (OXL2) | lambda_nb_in | MS3PROULTIMA-A-23 | Analog In 5 | analog_in | single_source | |
| OEM-E5-11 | Vehicle speed sensor (SP2-) | digital_in | MS3PROULTIMA-B-28 | Digital frequency in 1 | digital_in | single_source | |
| OEM-E5-12 | Canister close valve (CCV) | low_side_out | MS3PROULTIMA-B-6 | Injector out D | injector_out | single_source | |
| OEM-E5-5 | Vehicle speed sensor (SP2+) | digital_in | MS3PROULTIMA-B-34 | Digital Frequency in 1 VR+ | digital_in | single_source | |
| OEM-E6-10 | Mass air flow (VG) | analog_in | MS3PROULTIMA-A-22 | Analog In 4 | analog_in | single_source | |
| OEM-E6-11 | O2 right front (OXR1) | lambda_nb_in | MS3PROULTIMA-A-12 | Analog In 6 | analog_in | single_source | |
| OEM-E6-12 | O2 left front (OXL1) | lambda_nb_in | MS3PROULTIMA-A-17 | Analog In 7 | analog_in | single_source | |
| OEM-E6-14 | Coolant temperature (THW) | temp_in | MS3PROULTIMA-A-11 | CLT in | temp_in | single_source | |
| OEM-E6-15 | Accelerator pedal 1 (VPA) | analog_in | MS3PROULTIMA-A-9 | TPS in | analog_in | single_source | |
| OEM-E6-16 | Accelerator pedal 2 (VPA2) | analog_in | MS3PROULTIMA-A-20 | Analog in 2 | analog_in | single_source | |
| OEM-E6-17 | Power ground (E1) | ground | MS3PROULTIMA-A-13 + MS3PROULTIMA-B-18 + MS3PROULTIMA-B-3 + MS3PROULTIMA-B-5 + MS3PROULTIMA-B-7 + MS3PROULTIMA-B-9 | Power ground + Ground + Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-E6-18 | Sensor ground (E2) | sensor_ground | MS3PROULTIMA-A-15 + MS3PROULTIMA-A-16 + MS3PROULTIMA-A-18 + MS3PROULTIMA-A-27 + MS3PROULTIMA-C-17 + MS3PROULTIMA-C-18 + MS3PROULTIMA-C-19 + MS3PROULTIMA-C-20 + MS3PROULTIMA-C-21 | CKP− + Logic ground + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-E6-19 | MAF ground (EVG) | sensor_ground | MS3PROULTIMA-A-15 + MS3PROULTIMA-A-16 + MS3PROULTIMA-A-18 + MS3PROULTIMA-A-27 + MS3PROULTIMA-C-17 + MS3PROULTIMA-C-18 + MS3PROULTIMA-C-19 + MS3PROULTIMA-C-20 + MS3PROULTIMA-C-21 | CKP− + Logic ground + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-E6-2 | Sensor supply +5V (VC) | vref | MS3PROULTIMA-A-8 | 5V+ VREF out 1 | vref | single_source | |
| OEM-E6-22 | Intake air temperature (THA) | temp_in | MS3PROULTIMA-A-10 | MAT in | temp_in | single_source | |
| OEM-E6-23 | Throttle position 1 (VTA) | analog_in | MS3PROULTIMA-A-19 | Analog in 1 | analog_in | single_source | |
| OEM-E6-24 | Throttle position 2 (VTA2) | analog_in | MS3PROULTIMA-A-21 | Analog in 3 | analog_in | single_source | |
| OEM-E6-3 | O2 heater right front (HTR) | low_side_out | MS3PROULTIMA-A-2 | High current out 2 | low_side_out | single_source | |
| OEM-E6-4 | O2 heater left front (HTL) | low_side_out | MS3PROULTIMA-A-5 | High current out 3 | low_side_out | single_source | |
| OEM-E6-5 | Injector 1 (#10) | injector_out | MS3PROULTIMA-A-3 | Injector out J | injector_out | single_source | |
| OEM-E6-6 | Injector 2 (#20) | injector_out | MS3PROULTIMA-A-4 | Injector out I | injector_out | single_source | |
| OEM-E6-7 | EVAP purge VSV (PRG) | low_side_out | MS3PROULTIMA-B-8 | Injector out E | injector_out | single_source | |
| OEM-E7-1 | Injector 3 (#30) | injector_out | MS3PROULTIMA-B-1 | Injector out A | injector_out | single_source | |
| OEM-E7-10 | Cam position (G2) | trigger_in | MS3PROULTIMA-A-26 | CMP+ | trigger_in | single_source | |
| OEM-E7-11 | Ignition 1 (IGT) | ignition_out | MS3PROULTIMA-B-13 | Spark out G | ignition_out | single_source | |
| OEM-E7-12 | Ignition 2 (IGT2) | ignition_out | MS3PROULTIMA-B-14 | Spark out E | ignition_out | single_source | |
| OEM-E7-13 | Ignition 3 (IGT3) | ignition_out | MS3PROULTIMA-B-15 | Spark out C | ignition_out | single_source | |
| OEM-E7-17 | VVT-i OCV - (OCV-) | low_side_out | MS3PROULTIMA-A-14 | PWM / Idle Out 1 | low_side_out | single_source | |
| OEM-E7-18 | VVT-i OCV + (OCV+) | low_side_out | MS3PROULTIMA-C-4 | Digital out 1 | low_side_out | single_source | |
| OEM-E7-19 | ETCS throttle clutch - (CL-) | low_side_out | MS3PROULTIMA-A-29 | PWM out 2 | low_side_out | single_source | |
| OEM-E7-2 | Injector 4 (#40) | injector_out | MS3PROULTIMA-B-10 | Injector out F | injector_out | single_source | |
| OEM-E7-20 | ETCS throttle clutch + (CL+) | low_side_out | MS3PROULTIMA-C-3 | Digital out 2 | low_side_out | single_source | |
| OEM-E7-21 | Power ground (E01) | ground | MS3PROULTIMA-A-13 + MS3PROULTIMA-B-18 + MS3PROULTIMA-B-3 + MS3PROULTIMA-B-5 + MS3PROULTIMA-B-7 + MS3PROULTIMA-B-9 | Power ground + Ground + Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-E7-22 | Crank position return (NE-) | sensor_ground | MS3PROULTIMA-A-15 + MS3PROULTIMA-A-16 + MS3PROULTIMA-A-18 + MS3PROULTIMA-A-27 + MS3PROULTIMA-C-17 + MS3PROULTIMA-C-18 + MS3PROULTIMA-C-19 + MS3PROULTIMA-C-20 + MS3PROULTIMA-C-21 | CKP− + Logic ground + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-E7-23 | Crank position (NE) | trigger_in | MS3PROULTIMA-A-6 | CKP+ | trigger_in | single_source | |
| OEM-E7-25 | Igniter feedback (IGF) | digital_in | MS3PROULTIMA-B-35 | Digital Frequency in 1 VR− | digital_in | single_source | |
| OEM-E7-27 | Knock sensor 2 (KNK2) | knock_in | MS3PROULTIMA-A-7 | Knock In 2 | knock_in | single_source | |
| OEM-E7-28 | Knock sensor 1 (KNK1) | knock_in | MS3PROULTIMA-A-31 | Knock in 1 | knock_in | single_source | |
| OEM-E7-3 | Injector 5 (#50) | injector_out | MS3PROULTIMA-B-11 | Injector out G | injector_out | single_source | |
| OEM-E7-4 | Injector 6 (#60) | injector_out | MS3PROULTIMA-B-12 | Injector out H | injector_out | single_source | |
| OEM-E7-5 | ACIS intake VSV | low_side_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 | MS3PROULTIMA-A-35 | 0.85 | no route | 12V+ switched power in | — | |
| W6 | OEM-E3-1 | MS3PROULTIMA-C-23 | 0.85 | no route | Battery constant (BATT) | — | |
| 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 | MS3PROULTIMA-A-13 | 0.85 | no route | Power ground | — | |
| W10 | SP-GND-1 | MS3PROULTIMA-B-18 | 0.85 | no route | Ground | — | |
| W11 | SP-GND-1 | MS3PROULTIMA-B-3 | 0.85 | no route | Ground | — | |
| W12 | SP-GND-1 | MS3PROULTIMA-B-5 | 0.85 | no route | Ground | — | |
| W13 | SP-GND-1 | MS3PROULTIMA-B-7 | 0.85 | no route | Ground | — | |
| W14 | SP-GND-1 | MS3PROULTIMA-B-9 | 0.85 | no route | Ground | — | |
| W15 | OEM-E6-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W16 | OEM-E6-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W17 | OEM-E7-22 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W18 | SP-0V-1 | MS3PROULTIMA-A-16 | 0.5 | no route | Logic ground | — | |
| W19 | SP-0V-1 | MS3PROULTIMA-A-18 | 0.5 | no route | Sensor return | — | |
| W20 | SP-0V-1 | MS3PROULTIMA-C-17 | 0.5 | no route | Sensor return | — | |
| W21 | SP-0V-1 | MS3PROULTIMA-C-18 | 0.5 | no route | Sensor return | — | |
| W22 | SP-0V-1 | MS3PROULTIMA-C-19 | 0.5 | no route | Sensor return | — | |
| W23 | SP-0V-1 | MS3PROULTIMA-C-20 | 0.5 | no route | Sensor return | — | |
| W24 | SP-0V-1 | MS3PROULTIMA-C-21 | 0.5 | no route | Sensor return | — | |
| W25 | OEM-E6-2 | MS3PROULTIMA-A-8 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W26 | OEM-E7-23 | MS3PROULTIMA-A-6 | 0.5 | no route | Crank position (NE) | — | |
| W27 | SP-0V-1 | MS3PROULTIMA-A-15 | 0.5 | no route | CKP− | — | |
| W28 | OEM-E7-10 | MS3PROULTIMA-A-26 | 0.5 | no route | Cam position (G2) | — | |
| W29 | SP-0V-1 | MS3PROULTIMA-A-27 | 0.5 | no route | CMP− | — | |
| W30 | OEM-E7-28 | MS3PROULTIMA-A-31 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W31 | OEM-E7-27 | MS3PROULTIMA-A-7 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W32 | OEM-E7-11 | MS3PROULTIMA-B-13 | 0.5 | no route | Ignition 1 (IGT) | — | |
| W33 | OEM-E7-12 | MS3PROULTIMA-B-14 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W34 | OEM-E7-13 | MS3PROULTIMA-B-15 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W35 | OEM-E6-5 | MS3PROULTIMA-A-3 | 0.5 | no route | Injector 1 (#10) | — | |
| W36 | OEM-E6-6 | MS3PROULTIMA-A-4 | 0.5 | no route | Injector 2 (#20) | — | |
| W37 | OEM-E7-1 | MS3PROULTIMA-B-1 | 0.5 | no route | Injector 3 (#30) | — | |
| W38 | OEM-E7-2 | MS3PROULTIMA-B-10 | 0.5 | no route | Injector 4 (#40) | — | |
| W39 | OEM-E7-3 | MS3PROULTIMA-B-11 | 0.5 | no route | Injector 5 (#50) | — | |
| W40 | OEM-E7-4 | MS3PROULTIMA-B-12 | 0.5 | no route | Injector 6 (#60) | — | |
| W41 | OEM-E3-9 | MS3PROULTIMA-B-19 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W42 | OEM-E7-17 | MS3PROULTIMA-A-14 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W43 | OEM-E7-18 | MS3PROULTIMA-C-4 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W44 | OEM-E7-19 | MS3PROULTIMA-A-29 | 0.5 | no route | ETCS throttle clutch - (CL-) | — | |
| W45 | OEM-E7-20 | MS3PROULTIMA-C-3 | 0.5 | no route | ETCS throttle clutch + (CL+) | — | |
| W46 | OEM-E6-15 | MS3PROULTIMA-A-9 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W47 | OEM-E6-23 | MS3PROULTIMA-A-19 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W48 | OEM-E6-16 | MS3PROULTIMA-A-20 | 0.5 | no route | Accelerator pedal 2 (VPA2) | — | |
| W49 | OEM-E6-24 | MS3PROULTIMA-A-21 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W50 | OEM-E6-14 | MS3PROULTIMA-A-11 | 0.5 | no route | Coolant temperature (THW) | — | |
| W51 | OEM-E3-10 | MS3PROULTIMA-A-28 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W52 | OEM-E3-4 | MS3PROULTIMA-A-30 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W53 | OEM-E4-13 | MS3PROULTIMA-C-2 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W54 | OEM-E2-25 | MS3PROULTIMA-C-1 | 0.5 | no route | O2 heater right rear (HTR2) | — | |
| W55 | OEM-E2-26 | MS3PROULTIMA-A-1 | 0.5 | no route | O2 heater left rear (HTL2) | — | |
| W56 | OEM-E6-3 | MS3PROULTIMA-A-2 | 0.5 | no route | O2 heater right front (HTR) | — | |
| W57 | OEM-E6-4 | MS3PROULTIMA-A-5 | 0.5 | no route | O2 heater left front (HTL) | — | |
| W58 | OEM-E3-5 | MS3PROULTIMA-B-2 | 0.5 | no route | Fuel pump control (FC) | — | |
| W59 | OEM-E3-6 | MS3PROULTIMA-B-4 | 0.5 | no route | Check-engine lamp (W) | — | |
| W60 | OEM-E5-12 | MS3PROULTIMA-B-6 | 0.5 | no route | Canister close valve (CCV) | — | |
| W61 | OEM-E6-7 | MS3PROULTIMA-B-8 | 0.5 | no route | EVAP purge VSV (PRG) | — | |
| W62 | OEM-E6-10 | MS3PROULTIMA-A-22 | 0.5 | no route | Mass air flow (VG) | — | |
| W63 | OEM-E2-24 | MS3PROULTIMA-A-25 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W64 | OEM-E4-8 | MS3PROULTIMA-A-23 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W65 | OEM-E6-11 | MS3PROULTIMA-A-12 | 0.5 | no route | O2 right front (OXR1) | — | |
| W66 | OEM-E6-12 | MS3PROULTIMA-A-17 | 0.5 | no route | O2 left front (OXL1) | — | |
| W67 | OEM-E6-22 | MS3PROULTIMA-A-10 | 0.5 | no route | Intake air temperature (THA) | — | |
| W68 | OEM-E4-18 | MS3PROULTIMA-C-7 | 0.5 | no route | EVAP vapor pressure (PTNK) | — | |
| W69 | OEM-E5-11 | MS3PROULTIMA-B-28 | 0.5 | no route | Vehicle speed sensor (SP2-) | — | |
| W70 | OEM-E5-5 | MS3PROULTIMA-B-34 | 0.5 | no route | Vehicle speed sensor (SP2+) | — | |
| W71 | OEM-E7-25 | MS3PROULTIMA-B-35 | 0.5 | no route | Igniter feedback (IGF) | — | |
| W72 | OEM-E4-2 | MS3PROULTIMA-A-32 | 0.5 | no route | Starter signal (STA) | — | |
| W73 | OEM-E4-5 | MS3PROULTIMA-B-20 | 0.5 | no route | Diagnostic/timing check (TC) | — | |
| W74 | OEM-E4-6 | MS3PROULTIMA-B-29 | 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 (8)
| Severity | Code | Subject | Message |
|---|---|---|---|
| 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. |
| info | NET_FAMILY | OEM-E3-5 ↔ MS3PROULTIMA-B-2 | OEM-E3-5 "Fuel pump control (FC)" [low_side_out] is wired to MS3PROULTIMA-B-2 "Injector out B" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E3-6 ↔ MS3PROULTIMA-B-4 | OEM-E3-6 "Check-engine lamp (W)" [low_side_out] is wired to MS3PROULTIMA-B-4 "Injector out C" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E5-12 ↔ MS3PROULTIMA-B-6 | OEM-E5-12 "Canister close valve (CCV)" [low_side_out] is wired to MS3PROULTIMA-B-6 "Injector out D" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-E6-18 ↔ MS3PROULTIMA-A-27 | OEM-E6-18 "Sensor ground (E2)" [sensor_ground] is wired to MS3PROULTIMA-A-27 "CMP−" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-E6-7 ↔ MS3PROULTIMA-B-8 | OEM-E6-7 "EVAP purge VSV (PRG)" [low_side_out] is wired to MS3PROULTIMA-B-8 "Injector out E" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 2 optional OEM pins are not mapped: OEM-E3-11 Serial diagnostic (SIL); OEM-E7-5 ACIS intake VSV |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-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-E7 5: ACIS intake VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Ultimate - OEM-E3 11: Serial diagnostic (SIL): no free k_line on AMP EFI MS3Pro Ultimate
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | AMP EFI: MS3Pro Ultimate manual (v1.210, fw 1.5.2) pinout tables | https://cdn.shopify.com/s/files/1/0960/0014/7754/files/MS3Pro_User_Manual_Firmware_1.5.2_ULTIMATE.pdf?v=1760706068 | archive | 2026-10-05 | 71ed7ed81581 |
| 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 | — | — | — |