Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i → Emtron SL4 (auto)
Lexus IS300 (XE10 / JCE10) 2001-05 2JZ-GE VVT-i — Emtron — SL4
⚠ 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 | 4: read the Findings page before cutting any wire |
| Size of the job | 56 wires · 11 connectors · 3 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 3-1447221-4 |
| 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 | SL4-A-34 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-14V-1 | SL4-B-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E6-17 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E7-21 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | SL4-B-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | SL4-B-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E6-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E6-19 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E7-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | SL4-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E6-2 | SL4-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E7-23 | SL4-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | SL4-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E7-10 | SL4-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | SL4-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E7-28 | SL4-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E7-27 | SL4-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E7-11 | SL4-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E7-12 | SL4-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E7-13 | SL4-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E6-5 | SL4-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E6-6 | SL4-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E7-1 | SL4-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E7-2 | SL4-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E7-3 | SL4-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E7-4 | SL4-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E3-9 | SL4-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E7-17 | SL4-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E7-18 | SL4-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E7-19 | SL4-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E7-20 | SL4-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E6-15 | SL4-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E6-23 | SL4-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E6-16 | SL4-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E6-24 | SL4-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E6-14 | SL4-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E3-10 | SL4-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E3-4 | SL4-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E4-13 | SL4-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E2-25 | SL4-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E2-26 | SL4-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E6-10 | SL4-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E2-24 | SL4-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E4-8 | SL4-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E6-11 | SL4-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E6-12 | SL4-B-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E5-11 | SL4-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E5-5 | SL4-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E7-25 | SL4-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E4-2 | SL4-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E4-5 | SL4-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E4-6 | SL4-A-25 | 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 | SL4-A-34 | SL4-B-10 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | SL4-A-34 | SL4-B-18 | open (OL) | +12 V supply must not touch power ground | |
| 3 | SL4-A-34 | SL4-B-2 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 4 | SL4-B-10 | SL4-B-2 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 5 | SL4-B-18 | SL4-B-2 | open (OL) | power 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
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) | — | W47 | — | 0.5 | SL4-B-20 | — | — | — |
| 25 | O2 heater right rear (HTR2) | — | W44 | — | 0.5 | SL4-A-12 | — | — | — |
| 26 | O2 heater left rear (HTL2) | — | W45 | — | 0.5 | SL4-A-13 | — | — | — |
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 | SL4-A-17 | — | — | — |
| 11 | Serial diagnostic (SIL) | — | — | — | — | — | — | — | — |
| 16 | EFI main relay (+B) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Fuel pump relay (FPR) | — | W42 | — | 0.5 | SL4-A-10 | — | — | — |
| 5 | Fuel pump control (FC) | — | — | — | — | — | — | — | — |
| 6 | Check-engine lamp (W) | — | — | — | — | — | — | — | — |
| 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) | — | W31 | — | 0.5 | SL4-B-4 | — | — | — |
OEM-E4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 13 | A/C clutch relay (ACMG) | — | W43 | — | 0.5 | SL4-A-11 | — | — | — |
| 18 | EVAP vapor pressure (PTNK) | — | — | — | — | — | — | — | — |
| 2 | Starter signal (STA) | — | W54 | — | 0.5 | SL4-A-23 | — | — | — |
| 5 | Diagnostic/timing check (TC) | — | W55 | — | 0.5 | SL4-A-24 | — | — | — |
| 6 | Stop light switch (STP) | — | W56 | — | 0.5 | SL4-A-25 | — | — | — |
| 8 | O2 left rear (OXL2) | — | W48 | — | 0.5 | SL4-B-21 | — | — | — |
OEM-E5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Vehicle speed sensor (SP2-) | — | W51 | — | 0.5 | SL4-A-20 | — | — | — |
| 12 | Canister close valve (CCV) | — | — | — | — | — | — | — | — |
| 5 | Vehicle speed sensor (SP2+) | — | W52 | — | 0.5 | SL4-A-21 | — | — | — |
OEM-E6
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Mass air flow (VG) | — | W46 | — | 0.5 | SL4-B-19 | — | — | — |
| 11 | O2 right front (OXR1) | — | W49 | — | 0.5 | SL4-B-22 | — | — | — |
| 12 | O2 left front (OXL1) | — | W50 | — | 0.5 | SL4-B-23 | — | — | — |
| 14 | Coolant temperature (THW) | — | W40 | — | 0.5 | SL4-B-15 | — | — | — |
| 15 | Accelerator pedal 1 (VPA) | — | W36 | — | 0.5 | SL4-B-11 | — | — | — |
| 16 | Accelerator pedal 2 (VPA2) | — | W38 | — | 0.5 | SL4-B-13 | — | — | — |
| 17 | Power ground (E1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Sensor ground (E2) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | MAF ground (EVG) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Sensor supply +5V (VC) | — | W15 | — | 0.5 | SL4-B-2 | — | — | — |
| 22 | Intake air temperature (THA) | — | — | — | — | — | — | — | — |
| 23 | Throttle position 1 (VTA) | — | W37 | — | 0.5 | SL4-B-12 | — | — | — |
| 24 | Throttle position 2 (VTA2) | — | W39 | — | 0.5 | SL4-B-14 | — | — | — |
| 3 | O2 heater right front (HTR) | — | — | — | — | — | — | — | — |
| 4 | O2 heater left front (HTL) | — | — | — | — | — | — | — | — |
| 5 | Injector 1 (#10) | — | W25 | — | 0.5 | SL4-A-1 | — | — | — |
| 6 | Injector 2 (#20) | — | W26 | — | 0.5 | SL4-A-2 | — | — | — |
| 7 | EVAP purge VSV (PRG) | — | — | — | — | — | — | — | — |
OEM-E7
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 3 (#30) | — | W27 | — | 0.5 | SL4-A-3 | — | — | — |
| 10 | Cam position (G2) | — | W18 | — | 0.5 | SL4-B-7 | — | — | — |
| 11 | Ignition 1 (IGT) | — | W22 | — | 0.5 | SL4-A-26 | — | — | — |
| 12 | Ignition 2 (IGT2) | — | W23 | — | 0.5 | SL4-A-27 | — | — | — |
| 13 | Ignition 3 (IGT3) | — | W24 | — | 0.5 | SL4-A-28 | — | — | — |
| 17 | VVT-i OCV - (OCV-) | — | W32 | — | 0.5 | SL4-B-3 | — | — | — |
| 18 | VVT-i OCV + (OCV+) | — | W33 | — | 0.5 | SL4-A-14 | — | — | — |
| 19 | ETCS throttle clutch - (CL-) | — | W34 | — | 0.5 | SL4-A-15 | — | — | — |
| 2 | Injector 4 (#40) | — | W28 | — | 0.5 | SL4-A-4 | — | — | — |
| 20 | ETCS throttle clutch + (CL+) | — | W35 | — | 0.5 | SL4-A-16 | — | — | — |
| 21 | Power ground (E01) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 22 | Crank position return (NE-) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 23 | Crank position (NE) | — | W16 | — | 0.5 | SL4-B-5 | — | — | — |
| 25 | Igniter feedback (IGF) | — | W53 | — | 0.5 | SL4-A-22 | — | — | — |
| 27 | Knock sensor 2 (KNK2) | — | W21 | — | 0.5 | SL4-B-24 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | W20 | — | 0.5 | SL4-B-16 | — | — | — |
| 3 | Injector 5 (#50) | — | W29 | — | 0.5 | SL4-A-1 | — | — | — |
| 4 | Injector 6 (#60) | — | W30 | — | 0.5 | SL4-A-2 | — | — | — |
| 5 | ACIS intake VSV | — | — | — | — | — | — | — | — |
| 7 | ETCS throttle motor - (M-) | — | — | — | — | — | — | — | — |
| 8 | ETCS throttle motor + (M+) | — | — | — | — | — | — | — | — |
SL4-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection channel 1 | — | W25 | — | 0.5 | OEM-E6-5 | — | — | — |
| 1 | Injection channel 1 | — | W29 | — | 0.5 | OEM-E7-3 | — | — | — |
| 2 | Injection channel 2 | — | W26 | — | 0.5 | OEM-E6-6 | — | — | — |
| 2 | Injection channel 2 | — | W30 | — | 0.5 | OEM-E7-4 | — | — | — |
| 3 | Injection channel 3 | — | W27 | — | 0.5 | OEM-E7-1 | — | — | — |
| 4 | Injection channel 4 | — | W28 | — | 0.5 | OEM-E7-2 | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Sensor supply 8V | — | — | — | — | — | — | — | — |
| 10 | Auxiliary output 1 | — | W42 | — | 0.5 | OEM-E3-4 | — | — | — |
| 11 | Auxiliary output 2 | — | W43 | — | 0.5 | OEM-E4-13 | — | — | — |
| 12 | Auxiliary output 3 | — | W44 | — | 0.5 | OEM-E2-25 | — | — | — |
| 13 | Auxiliary output 4 | — | W45 | — | 0.5 | OEM-E2-26 | — | — | — |
| 14 | Auxiliary output 5 | — | W33 | — | 0.5 | OEM-E7-18 | — | — | — |
| 15 | Auxiliary output 6 | — | W34 | — | 0.5 | OEM-E7-19 | — | — | — |
| 16 | Auxiliary output 7 | — | W35 | — | 0.5 | OEM-E7-20 | — | — | — |
| 17 | Auxiliary output 8 | — | W41 | — | 0.5 | OEM-E3-10 | — | — | — |
| 18 | Auxiliary output 9 | — | — | — | — | — | — | — | — |
| 19 | Auxiliary output 10 | — | — | — | — | — | — | — | — |
| 20 | Digital input 1 | — | W51 | — | 0.5 | OEM-E5-11 | — | — | — |
| 21 | Digital input 2 | — | W52 | — | 0.5 | OEM-E5-5 | — | — | — |
| 22 | Digital input 3 | — | W53 | — | 0.5 | OEM-E7-25 | — | — | — |
| 23 | Digital input 4 | — | W54 | — | 0.5 | OEM-E4-2 | — | — | — |
| 24 | Digital input 5 | — | W55 | — | 0.5 | OEM-E4-5 | — | — | — |
| 25 | Digital input 6 | — | W56 | — | 0.5 | OEM-E4-6 | — | — | — |
| 26 | Ignition channel 1 | — | W22 | — | 0.5 | OEM-E7-11 | — | — | — |
| 27 | Ignition channel 2 | — | W23 | — | 0.5 | OEM-E7-12 | — | — | — |
| 28 | Ignition channel 3 | — | W24 | — | 0.5 | OEM-E7-13 | — | — | — |
| 29 | Ignition channel 4 | — | — | — | — | — | — | — | — |
| 30 | NC | — | — | — | — | — | — | — | — |
| 31 | NC | — | — | — | — | — | — | — | — |
| 32 | NC | — | — | — | — | — | — | — | — |
| 33 | NC | — | — | — | — | — | — | — | — |
| 34 | Aux 9–10 14V supply | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
SL4-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU 14V supply | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Sensor supply Vref1 5.0V | — | W15 | — | 0.5 | OEM-E6-2 | — | — | — |
| 3 | EFI relay output (low side, 200 mA) | — | W32 | — | 0.5 | OEM-E7-17 | — | — | — |
| 4 | Ignition switch input | — | W31 | — | 0.5 | OEM-E3-9 | — | — | — |
| 5 | Crank index sensor + | — | W16 | — | 0.5 | OEM-E7-23 | — | — | — |
| 6 | Crank index sensor − | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Sync sensor + | — | W18 | — | 0.5 | OEM-E7-10 | — | — | — |
| 8 | Sync sensor − | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 9 | Shield (crank/sync/knock) | — | — | — | — | — | — | — | — |
| 10 | Analog sensor 0V reference | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Analog input 1 | — | W36 | — | 0.5 | OEM-E6-15 | — | — | — |
| 12 | Analog input 2 | — | W37 | — | 0.5 | OEM-E6-23 | — | — | — |
| 13 | Analog input 3 | — | W38 | — | 0.5 | OEM-E6-16 | — | — | — |
| 14 | Analog input 4 | — | W39 | — | 0.5 | OEM-E6-24 | — | — | — |
| 15 | Analog input 5 | — | W40 | — | 0.5 | OEM-E6-14 | — | — | — |
| 16 | Knock 1 + | — | W20 | — | 0.5 | OEM-E7-28 | — | — | — |
| 17 | Knock 1 − | — | — | — | — | — | — | — | — |
| 18 | ECU ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Analog input 6 | — | W46 | — | 0.5 | OEM-E6-10 | — | — | — |
| 20 | Analog input 7 (switchable 1k pull-up) | — | W47 | — | 0.5 | OEM-E2-24 | — | — | — |
| 21 | Analog input 8 (switchable 1k pull-up) | — | W48 | — | 0.5 | OEM-E4-8 | — | — | — |
| 22 | Analog input 9 (switchable 1k pull-up) | — | W49 | — | 0.5 | OEM-E6-11 | — | — | — |
| 23 | Analog input 10 (switchable 1k pull-up) | — | W50 | — | 0.5 | OEM-E6-12 | — | — | — |
| 24 | Knock 2 + | — | W21 | — | 0.5 | OEM-E7-27 | — | — | — |
| 25 | Knock 2 − | — | — | — | — | — | — | — | — |
| 26 | ECU ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | CAN 1 H | — | — | — | — | — | — | — | — |
| 28 | CAN 1 L | — | — | — | — | — | — | — | — |
| 29 | NC | — | — | — | — | — | — | — | — |
| 30 | NC | — | — | — | — | — | — | — | — |
| 31 | Ethernet Tx + | — | — | — | — | — | — | — | — |
| 32 | Ethernet Tx − | — | — | — | — | — | — | — | — |
| 33 | Ethernet Rx + | — | — | — | — | — | — | — | — |
| 34 | Ethernet Rx − | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-E6-18 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-E6-19 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E7-22 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | SL4-B-10 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | SL4-B-6 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | SL4-B-8 | — | — | — |
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 | SL4-A-34 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | SL4-B-1 | — | — | — |
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 | SL4-B-18 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | SL4-B-26 | — | — | — |
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 | SL4-A-34 + SL4-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-E2-24 | O2 right rear (OXR2) | lambda_nb_in | SL4-B-20 | Analog input 7 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-E2-25 | O2 heater right rear (HTR2) | low_side_out | SL4-A-12 | Auxiliary output 3 | switch_out | single_source | |
| OEM-E2-26 | O2 heater left rear (HTL2) | low_side_out | SL4-A-13 | Auxiliary output 4 | switch_out | single_source | |
| OEM-E3-1 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-E3-10 | EFI main relay control (MREL) | low_side_out | SL4-A-17 | Auxiliary output 8 | switch_out | single_source | |
| OEM-E3-11 | Serial diagnostic (SIL) | serial | — | — | — | single_source | |
| OEM-E3-16 | EFI main relay (+B) | power_in | SL4-A-34 + SL4-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-E3-4 | Fuel pump relay (FPR) | low_side_out | SL4-A-10 | Auxiliary output 1 | switch_out | single_source | |
| OEM-E3-5 | Fuel pump control (FC) | low_side_out | — | — | — | single_source | |
| OEM-E3-6 | Check-engine lamp (W) | low_side_out | — | — | — | single_source | |
| OEM-E3-7 | ETCS main relay (+BM) | power_in | SL4-A-34 + SL4-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-E3-8 | EFI main relay (+B2) | power_in | SL4-A-34 + SL4-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-E3-9 | Ignition switch (IGSW) | digital_in | SL4-B-4 | Ignition switch input | digital_in | single_source | |
| OEM-E4-13 | A/C clutch relay (ACMG) | low_side_out | SL4-A-11 | Auxiliary output 2 | switch_out | single_source | |
| OEM-E4-18 | EVAP vapor pressure (PTNK) | analog_in | — | — | — | single_source | |
| OEM-E4-2 | Starter signal (STA) | digital_in | SL4-A-23 | Digital input 4 | digital_in | single_source | |
| OEM-E4-5 | Diagnostic/timing check (TC) | digital_in | SL4-A-24 | Digital input 5 | digital_in | single_source | |
| OEM-E4-6 | Stop light switch (STP) | digital_in | SL4-A-25 | Digital input 6 | digital_in | single_source | |
| OEM-E4-8 | O2 left rear (OXL2) | lambda_nb_in | SL4-B-21 | Analog input 8 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-E5-11 | Vehicle speed sensor (SP2-) | digital_in | SL4-A-20 | Digital input 1 | digital_in | single_source | |
| OEM-E5-12 | Canister close valve (CCV) | low_side_out | — | — | — | single_source | |
| OEM-E5-5 | Vehicle speed sensor (SP2+) | digital_in | SL4-A-21 | Digital input 2 | digital_in | single_source | |
| OEM-E6-10 | Mass air flow (VG) | analog_in | SL4-B-19 | Analog input 6 | analog_in | single_source | |
| OEM-E6-11 | O2 right front (OXR1) | lambda_nb_in | SL4-B-22 | Analog input 9 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-E6-12 | O2 left front (OXL1) | lambda_nb_in | SL4-B-23 | Analog input 10 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-E6-14 | Coolant temperature (THW) | temp_in | SL4-B-15 | Analog input 5 | analog_in | single_source | |
| OEM-E6-15 | Accelerator pedal 1 (VPA) | analog_in | SL4-B-11 | Analog input 1 | analog_in | single_source | |
| OEM-E6-16 | Accelerator pedal 2 (VPA2) | analog_in | SL4-B-13 | Analog input 3 | analog_in | single_source | |
| OEM-E6-17 | Power ground (E1) | ground | SL4-B-18 + SL4-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-E6-18 | Sensor ground (E2) | sensor_ground | SL4-B-10 + SL4-B-6 + SL4-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-E6-19 | MAF ground (EVG) | sensor_ground | SL4-B-10 + SL4-B-6 + SL4-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-E6-2 | Sensor supply +5V (VC) | vref | SL4-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-E6-22 | Intake air temperature (THA) | temp_in | — | — | — | single_source | |
| OEM-E6-23 | Throttle position 1 (VTA) | analog_in | SL4-B-12 | Analog input 2 | analog_in | single_source | |
| OEM-E6-24 | Throttle position 2 (VTA2) | analog_in | SL4-B-14 | Analog input 4 | analog_in | single_source | |
| OEM-E6-3 | O2 heater right front (HTR) | low_side_out | — | — | — | single_source | |
| OEM-E6-4 | O2 heater left front (HTL) | low_side_out | — | — | — | single_source | |
| OEM-E6-5 | Injector 1 (#10) | injector_out | SL4-A-1 | Injection channel 1 | injector_out | single_source | |
| OEM-E6-6 | Injector 2 (#20) | injector_out | SL4-A-2 | Injection channel 2 | injector_out | single_source | |
| OEM-E6-7 | EVAP purge VSV (PRG) | low_side_out | — | — | — | single_source | |
| OEM-E7-1 | Injector 3 (#30) | injector_out | SL4-A-3 | Injection channel 3 | injector_out | single_source | |
| OEM-E7-10 | Cam position (G2) | trigger_in | SL4-B-7 | Sync sensor + | trigger_in | single_source | |
| OEM-E7-11 | Ignition 1 (IGT) | ignition_out | SL4-A-26 | Ignition channel 1 | ignition_out | single_source | |
| OEM-E7-12 | Ignition 2 (IGT2) | ignition_out | SL4-A-27 | Ignition channel 2 | ignition_out | single_source | |
| OEM-E7-13 | Ignition 3 (IGT3) | ignition_out | SL4-A-28 | Ignition channel 3 | ignition_out | single_source | |
| OEM-E7-17 | VVT-i OCV - (OCV-) | low_side_out | SL4-B-3 | EFI relay output (low side, 200 mA) | low_side_out | single_source | |
| OEM-E7-18 | VVT-i OCV + (OCV+) | low_side_out | SL4-A-14 | Auxiliary output 5 | switch_out | single_source | |
| OEM-E7-19 | ETCS throttle clutch - (CL-) | low_side_out | SL4-A-15 | Auxiliary output 6 | switch_out | single_source | |
| OEM-E7-2 | Injector 4 (#40) | injector_out | SL4-A-4 | Injection channel 4 | injector_out | single_source | |
| OEM-E7-20 | ETCS throttle clutch + (CL+) | low_side_out | SL4-A-16 | Auxiliary output 7 | switch_out | single_source | |
| OEM-E7-21 | Power ground (E01) | ground | SL4-B-18 + SL4-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-E7-22 | Crank position return (NE-) | sensor_ground | SL4-B-10 + SL4-B-6 + SL4-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-E7-23 | Crank position (NE) | trigger_in | SL4-B-5 | Crank index sensor + | trigger_in | single_source | |
| OEM-E7-25 | Igniter feedback (IGF) | digital_in | SL4-A-22 | Digital input 3 | digital_in | single_source | |
| OEM-E7-27 | Knock sensor 2 (KNK2) | knock_in | SL4-B-24 | Knock 2 + | knock_in | single_source | |
| OEM-E7-28 | Knock sensor 1 (KNK1) | knock_in | SL4-B-16 | Knock 1 + | knock_in | single_source | |
| OEM-E7-3 | Injector 5 (#50) | injector_out | SL4-A-1 | Injection channel 1 | injector_out | single_source | |
| OEM-E7-4 | Injector 6 (#60) | injector_out | SL4-A-2 | Injection channel 2 | 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 | SL4-A-34 | 0.85 | no route | Aux 9–10 14V supply | — | |
| W6 | SP-14V-1 | SL4-B-1 | 0.85 | no route | ECU 14V supply | — | |
| 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 | SL4-B-18 | 0.85 | no route | ECU ground | — | |
| W10 | SP-GND-1 | SL4-B-26 | 0.85 | no route | ECU ground | — | |
| W11 | OEM-E6-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W12 | OEM-E6-19 | SP-0V-1 | 0.5 | no route | MAF ground (EVG) | — | |
| W13 | OEM-E7-22 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W14 | SP-0V-1 | SL4-B-10 | 0.5 | no route | Analog sensor 0V reference | — | |
| W15 | OEM-E6-2 | SL4-B-2 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W16 | OEM-E7-23 | SL4-B-5 | 0.5 | no route | Crank position (NE) | — | |
| W17 | SP-0V-1 | SL4-B-6 | 0.5 | no route | Crank index sensor − | — | |
| W18 | OEM-E7-10 | SL4-B-7 | 0.5 | no route | Cam position (G2) | — | |
| W19 | SP-0V-1 | SL4-B-8 | 0.5 | no route | Sync sensor − | — | |
| W20 | OEM-E7-28 | SL4-B-16 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W21 | OEM-E7-27 | SL4-B-24 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W22 | OEM-E7-11 | SL4-A-26 | 0.5 | no route | Ignition 1 (IGT) | — | |
| W23 | OEM-E7-12 | SL4-A-27 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W24 | OEM-E7-13 | SL4-A-28 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W25 | OEM-E6-5 | SL4-A-1 | 0.5 | no route | Injector 1 (#10) | — | |
| W26 | OEM-E6-6 | SL4-A-2 | 0.5 | no route | Injector 2 (#20) | — | |
| W27 | OEM-E7-1 | SL4-A-3 | 0.5 | no route | Injector 3 (#30) | — | |
| W28 | OEM-E7-2 | SL4-A-4 | 0.5 | no route | Injector 4 (#40) | — | |
| W29 | OEM-E7-3 | SL4-A-1 | 0.5 | no route | Injector 5 (#50) | — | |
| W30 | OEM-E7-4 | SL4-A-2 | 0.5 | no route | Injector 6 (#60) | — | |
| W31 | OEM-E3-9 | SL4-B-4 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W32 | OEM-E7-17 | SL4-B-3 | 0.5 | no route | VVT-i OCV - (OCV-) | — | |
| W33 | OEM-E7-18 | SL4-A-14 | 0.5 | no route | VVT-i OCV + (OCV+) | — | |
| W34 | OEM-E7-19 | SL4-A-15 | 0.5 | no route | ETCS throttle clutch - (CL-) | — | |
| W35 | OEM-E7-20 | SL4-A-16 | 0.5 | no route | ETCS throttle clutch + (CL+) | — | |
| W36 | OEM-E6-15 | SL4-B-11 | 0.5 | no route | Accelerator pedal 1 (VPA) | — | |
| W37 | OEM-E6-23 | SL4-B-12 | 0.5 | no route | Throttle position 1 (VTA) | — | |
| W38 | OEM-E6-16 | SL4-B-13 | 0.5 | no route | Accelerator pedal 2 (VPA2) | — | |
| W39 | OEM-E6-24 | SL4-B-14 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W40 | OEM-E6-14 | SL4-B-15 | 0.5 | no route | Coolant temperature (THW) | — | |
| W41 | OEM-E3-10 | SL4-A-17 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W42 | OEM-E3-4 | SL4-A-10 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W43 | OEM-E4-13 | SL4-A-11 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W44 | OEM-E2-25 | SL4-A-12 | 0.5 | no route | O2 heater right rear (HTR2) | — | |
| W45 | OEM-E2-26 | SL4-A-13 | 0.5 | no route | O2 heater left rear (HTL2) | — | |
| W46 | OEM-E6-10 | SL4-B-19 | 0.5 | no route | Mass air flow (VG) | — | |
| W47 | OEM-E2-24 | SL4-B-20 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W48 | OEM-E4-8 | SL4-B-21 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W49 | OEM-E6-11 | SL4-B-22 | 0.5 | no route | O2 right front (OXR1) | — | |
| W50 | OEM-E6-12 | SL4-B-23 | 0.5 | no route | O2 left front (OXL1) | — | |
| W51 | OEM-E5-11 | SL4-A-20 | 0.5 | no route | Vehicle speed sensor (SP2-) | — | |
| W52 | OEM-E5-5 | SL4-A-21 | 0.5 | no route | Vehicle speed sensor (SP2+) | — | |
| W53 | OEM-E7-25 | SL4-A-22 | 0.5 | no route | Igniter feedback (IGF) | — | |
| W54 | OEM-E4-2 | SL4-A-23 | 0.5 | no route | Starter signal (STA) | — | |
| W55 | OEM-E4-5 | SL4-A-24 | 0.5 | no route | Diagnostic/timing check (TC) | — | |
| W56 | OEM-E4-6 | SL4-A-25 | 0.5 | no route | Stop light switch (STP) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| connector | 4-1437290-1 | TE | Superseal 1.0 34-way plug, Key 2 | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 45.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | NET_MERGED | OEM-E6-5 + OEM-E7-3 + SL4-A-1 | 2 different OEM functions share one net: OEM-E6-5 Injector 1 (#10); OEM-E7-3 Injector 5 (#50) |
| error | NET_MERGED | OEM-E6-6 + OEM-E7-4 + SL4-A-2 | 2 different OEM functions share one net: OEM-E6-6 Injector 2 (#20); OEM-E7-4 Injector 6 (#60) |
| 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-E2-25 ↔ SL4-A-12 | OEM-E2-25 "O2 heater right rear (HTR2)" [low_side_out] is wired to SL4-A-12 "Auxiliary output 3" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E2-26 ↔ SL4-A-13 | OEM-E2-26 "O2 heater left rear (HTL2)" [low_side_out] is wired to SL4-A-13 "Auxiliary output 4" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E3-10 ↔ SL4-A-17 | OEM-E3-10 "EFI main relay control (MREL)" [low_side_out] is wired to SL4-A-17 "Auxiliary output 8" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E3-4 ↔ SL4-A-10 | OEM-E3-4 "Fuel pump relay (FPR)" [low_side_out] is wired to SL4-A-10 "Auxiliary output 1" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E4-13 ↔ SL4-A-11 | OEM-E4-13 "A/C clutch relay (ACMG)" [low_side_out] is wired to SL4-A-11 "Auxiliary output 2" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E6-14 ↔ SL4-B-15 | OEM-E6-14 "Coolant temperature (THW)" [temp_in] is wired to SL4-B-15 "Analog input 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-E6-18 ↔ SL4-B-6 | OEM-E6-18 "Sensor ground (E2)" [sensor_ground] is wired to SL4-B-6 "Crank index sensor −" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-E7-18 ↔ SL4-A-14 | OEM-E7-18 "VVT-i OCV + (OCV+)" [low_side_out] is wired to SL4-A-14 "Auxiliary output 5" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E7-19 ↔ SL4-A-15 | OEM-E7-19 "ETCS throttle clutch - (CL-)" [low_side_out] is wired to SL4-A-15 "Auxiliary output 6" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-E7-20 ↔ SL4-A-16 | OEM-E7-20 "ETCS throttle clutch + (CL+)" [low_side_out] is wired to SL4-A-16 "Auxiliary output 7" [switch_out]. Configure this output as low side. |
| info | UNMAPPED | OEM | 10 optional OEM pins are not mapped: OEM-E3-11 Serial diagnostic (SIL); OEM-E3-5 Fuel pump control (FC); OEM-E3-6 Check-engine lamp (W); OEM-E4-18 EVAP vapor pressure (PTNK); OEM-E5-12 Canister close valve (CCV); OEM-E6-22 Intake air temperature (THA); OEM-E6-3 O2 heater right front (HTR); OEM-E6-4 O2 heater left front (HTL); OEM-E6-7 EVAP purge VSV (PRG); OEM-E7-5 ACIS intake VSV |
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
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-E3 1: Battery constant (BATT): Emtron SL4 has no battery-constant input; not needed - SL4-B 17: Knock 1 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - SL4-B 25: Knock 2 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - OEM-E6 3: O2 heater right front (HTR): no free heater_low_side/low_side/relay_control/ls_hs/injector on Emtron SL4 - OEM-E6 4: O2 heater left front (HTL): no free heater_low_side/low_side/relay_control/ls_hs/injector on Emtron SL4 - OEM-E3 5: Fuel pump control (FC): no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL4 - OEM-E3 6: Check-engine lamp (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL4 - OEM-E5 12: Canister close valve (CCV): no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL4 - OEM-E6 7: EVAP purge VSV (PRG): no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL4 - OEM-E7 5: ACIS intake VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL4 - OEM-E6 22: Intake air temperature (THA): no free thermistor/analog_0_5 on Emtron SL4 - OEM-E4 18: EVAP vapor pressure (PTNK): no free analog_0_5 on Emtron SL4 - OEM-E3 11: Serial diagnostic (SIL): no free k_line on Emtron SL4
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Emtron SL4/SL6/SL8 ECU datasheets | https://docs.emtronaustralia.com.au/engine-management/datasheets/index.html | archive | 2026-10-05 | 1e22846cec94 |
| 4 | vendor_doc | Emtron SL4/SL6/SL8 pinout pages | https://docs.emtronaustralia.com.au/engine-management/wiring/index.html | archive | 2026-10-05 | e52b3da9996a |
| 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 | — | — | — |