Scion FR-S (ZN6, FA20) → Emtron SL8 (auto)
Scion FR-S (ZN6, FA20) — Emtron — SL8
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-09
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 | 1: read the Findings page before cutting any wire |
| Size of the job | 76 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-A33-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A34-6 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | SL8-A-34 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | SL8-B-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A33-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A34-1 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A34-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A34-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A36-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-A36-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | SL8-B-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | SL8-B-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A33-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A34-27 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A35-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A35-30 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A36-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | SL8-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-A34-34 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A35-21 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A35-22 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A36-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-5V1-1 | SL8-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A34-16 | SL8-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | SP-0V-1 | SL8-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A34-14 | SL8-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-0V-1 | SL8-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A34-28 | SL8-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A34-17 | SL8-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A36-21 | SL8-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A36-10 | SL8-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A36-31 | SL8-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A36-8 | SL8-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A36-12 | SL8-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A36-14 | SL8-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A36-22 | SL8-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A36-25 | SL8-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A36-24 | SL8-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A36-32 | SL8-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A36-13 | SL8-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A36-23 | SL8-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A33-28 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A34-29 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A34-30 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A34-35 | SP-SHD-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | SP-SHD-1 | SL8-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A33-27 | SL8-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A36-1 | SL8-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A36-2 | SL8-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A35-13 | SL8-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A35-12 | SL8-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A35-11 | SL8-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A33-20 | SL8-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A35-17 | SL8-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A35-35 | SL8-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A35-5 | SL8-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A35-7 | SL8-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-A34-5 | SL8-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A33-22 | SL8-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-A34-20 | SL8-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-A35-31 | SL8-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-A36-28 | SL8-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-A35-23 | SL8-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-A36-18 | SL8-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-A34-21 | SL8-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-A36-30 | SL8-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-A33-12 | SL8-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-A36-20 | SL8-B-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-A33-14 | SL8-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-A33-15 | SL8-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-A33-16 | SL8-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-A33-17 | SL8-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-A33-3 | SL8-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-A33-7 | SL8-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W75 | OEM-A33-19 | SL8-B-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W76 | OEM-A33-18 | SL8-B-28 | 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 | SL8-A-34 | SL8-B-10 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | SL8-A-34 | SL8-B-18 | open (OL) | +12 V supply must not touch power ground | |
| 3 | SL8-A-34 | SL8-B-2 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 4 | SL8-B-10 | SL8-B-2 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 5 | SL8-B-18 | SL8-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-A33
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU power (+B2, main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 12 | Intake air temperature (THA, in MAF) | — | W67 | — | 0.5 | SL8-B-22 | — | — | — |
| 14 | Starter signal (STSW2) | — | W69 | — | 0.5 | SL8-A-20 | — | — | — |
| 15 | Clutch switch (CLSW) | — | W70 | — | 0.5 | SL8-A-21 | — | — | — |
| 16 | Neutral switch (NSW) | — | W71 | — | 0.5 | SL8-A-22 | — | — | — |
| 17 | Starter signal (STSW2) | — | W72 | — | 0.5 | SL8-A-23 | — | — | — |
| 18 | CAN low (CANL) | — | W76 | — | 0.5 | SL8-B-28 | — | — | — |
| 19 | CAN high (CANH) | — | W75 | — | 0.5 | SL8-B-27 | — | — | — |
| 2 | Battery constant (BATT, memory) | — | — | — | — | — | — | — | — |
| 20 | Blower relay (HB) | — | W53 | — | 0.5 | SL8-A-16 | — | — | — |
| 22 | Mass air flow (VG) | — | W59 | — | 0.5 | SL8-B-11 | — | — | — |
| 27 | Ignition switch sense (IGSW, IG2 relay) | — | W47 | — | 0.5 | SL8-B-4 | — | — | — |
| 28 | Shield ground (SLE2) | — | W42 | — | 0.5 | SP-SHD-1 | — | — | — |
| 29 | MAF sensor ground (E2G) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Stop light switch (ST1-) | — | W73 | — | 0.5 | SL8-A-24 | — | — | — |
| 4 | Power ground (EC) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Stop light switch (STP) | — | W74 | — | 0.5 | SL8-A-25 | — | — | — |
| 8 | A/C pressure sensor (ACP) | — | — | — | — | — | — | — | — |
OEM-A34
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Power ground (E03) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | DI injector confirmation (IJF1) | — | — | — | — | — | — | — | — |
| 13 | High-pressure fuel pump spill valve (FPF) | — | — | — | — | — | — | — | — |
| 14 | VVT cam sensor exhaust bank 1 (EV1+) | — | W26 | — | 0.5 | SL8-B-7 | — | — | — |
| 15 | VVT cam sensor intake bank 2 (VV2+) | — | — | — | — | — | — | — | — |
| 16 | Crank position (NE+) | — | W24 | — | 0.5 | SL8-B-5 | — | — | — |
| 17 | Knock sensor 2 (KNK2) | — | W29 | — | 0.5 | SL8-B-24 | — | — | — |
| 18 | A/F ratio sensor (A1A-) | — | — | — | — | — | — | — | — |
| 19 | A/F ratio sensor (A1A+) | — | — | — | — | — | — | — | — |
| 2 | Power ground (E04) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Manifold absolute pressure (PIM) | — | W60 | — | 0.5 | SL8-B-12 | — | — | — |
| 21 | Heated oxygen sensor (OX1B, rear) | — | W65 | — | 0.5 | SL8-B-20 | — | — | — |
| 25 | VVT cam sensor exhaust bank 2 (EV2+) | — | — | — | — | — | — | — | — |
| 26 | VVT cam sensor intake bank 1 (VV1+) | — | — | — | — | — | — | — | — |
| 27 | Crank position return (NE-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Knock sensor 1 (KNK1) | — | W28 | — | 0.5 | SL8-B-16 | — | — | — |
| 29 | Shield ground (EKNK) | — | W43 | — | 0.5 | SP-SHD-1 | — | — | — |
| 3 | Power ground (E05) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Shield ground (SLE1) | — | W44 | — | 0.5 | SP-SHD-1 | — | — | — |
| 31 | DI injector confirmation (IJF2) | — | — | — | — | — | — | — | — |
| 32 | High-pressure fuel pump spill valve (FPD) | — | — | — | — | — | — | — | — |
| 34 | OCV power source (VCV, 5V) | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 35 | Shield ground (SLE3) | — | W45 | — | 0.5 | SP-SHD-1 | — | — | — |
| 5 | A/F ratio sensor heater (HA1A) | — | W58 | — | 0.5 | SL8-A-13 | — | — | — |
| 6 | ECU power (+B, main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Fuel pressure sensor (PR) | — | — | — | — | — | — | — | — |
OEM-A35
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Canister vent valve (VPMP) | — | — | — | — | — | — | — | — |
| 10 | Fuel pump control monitor (DI) | — | — | — | — | — | — | — | — |
| 11 | Cooling fan relay 3 (FAN1) | — | W52 | — | 0.5 | SL8-A-15 | — | — | — |
| 12 | Cooling fan relay 2 (FAN2) | — | W51 | — | 0.5 | SL8-A-14 | — | — | — |
| 13 | EFI main relay 1 (SSHUT) | — | W50 | — | 0.5 | SL8-B-3 | — | — | — |
| 15 | Tachometer output (TACH) | — | — | — | — | — | — | — | — |
| 17 | ETCS relay (MCR) | — | W54 | — | 0.5 | SL8-A-17 | — | — | — |
| 19 | Fuel pump control (FPC) | — | — | — | — | — | — | — | — |
| 20 | Canister pressure sensor (PPMP) | — | — | — | — | — | — | — | — |
| 21 | Accelerator pedal 5V supply (VCPA) | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 22 | Accelerator pedal 5V supply (VCP2) | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 23 | Accelerator pedal position (VPA) | — | W63 | — | 0.5 | SL8-B-15 | — | — | — |
| 26 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 29 | Accelerator pedal ground (EPA) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Accelerator pedal ground (EPA2) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Accelerator pedal position 2 (VPA2) | — | W61 | — | 0.5 | SL8-B-13 | — | — | — |
| 35 | A/C clutch relay (AC) | — | W55 | — | 0.5 | SL8-A-10 | — | — | — |
| 5 | Injector relay (IREL) | — | W56 | — | 0.5 | SL8-A-11 | — | — | — |
| 7 | ETCS relay (+BM) | — | W57 | — | 0.5 | SL8-A-12 | — | — | — |
| 8 | Leak detection pump (MPMP) | — | — | — | — | — | — | — | — |
OEM-A36
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Throttle actuator motor - (M-) | — | W48 | — | 0.5 | SL8-A-18 | — | — | — |
| 10 | Ignition coil 2 (IGT2) | — | W31 | — | 0.5 | SL8-A-27 | — | — | — |
| 11 | Purge valve (PRG) | — | — | — | — | — | — | — | — |
| 12 | Injector 1 port (#10) | — | W34 | — | 0.5 | SL8-A-1 | — | — | — |
| 13 | Injector 4 port (#40) | — | W40 | — | 0.5 | SL8-A-7 | — | — | — |
| 14 | Injector 1 direct (#1) | — | W35 | — | 0.5 | SL8-A-2 | — | — | — |
| 16 | OCV intake bank 2 (OC2) | — | — | — | — | — | — | — | — |
| 17 | OCV intake bank 1 (OC1) | — | — | — | — | — | — | — | — |
| 18 | Throttle position (VTA1) | — | W64 | — | 0.5 | SL8-B-19 | — | — | — |
| 19 | Sensor 5V supply (VC) | — | W22 | — | 0.5 | SP-5V1-1 | — | — | — |
| 2 | Throttle actuator motor + (M+) | — | W49 | — | 0.5 | SL8-A-19 | — | — | — |
| 20 | Oil temperature (OT) | — | W68 | — | 0.5 | SL8-B-23 | — | — | — |
| 21 | Ignition coil 1 (IGT1) | — | W30 | — | 0.5 | SL8-A-26 | — | — | — |
| 22 | Injector 2 port (#20) | — | W36 | — | 0.5 | SL8-A-3 | — | — | — |
| 23 | Injector 4 direct (#4) | — | W41 | — | 0.5 | SL8-A-8 | — | — | — |
| 24 | Injector 3 direct (#3) | — | W38 | — | 0.5 | SL8-A-5 | — | — | — |
| 25 | Injector 2 direct (#2) | — | W37 | — | 0.5 | SL8-A-4 | — | — | — |
| 28 | Throttle position 2 (VTA2) | — | W62 | — | 0.5 | SL8-B-14 | — | — | — |
| 29 | Sensor ground (E1) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Power ground (E02) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Engine coolant temperature (THW) | — | W66 | — | 0.5 | SL8-B-21 | — | — | — |
| 31 | Ignition coil 3 (IGT3) | — | W32 | — | 0.5 | SL8-A-28 | — | — | — |
| 32 | Injector 3 port (#30) | — | W39 | — | 0.5 | SL8-A-6 | — | — | — |
| 4 | Power ground (E01) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | OCV exhaust bank 2 (OE2) | — | — | — | — | — | — | — | — |
| 6 | Heated oxygen sensor heater (HT1B) | — | — | — | — | — | — | — | — |
| 7 | OCV exhaust bank 1 (OE1) | — | — | — | — | — | — | — | — |
| 8 | Ignition coil 4 (IGT4) | — | W33 | — | 0.5 | SL8-A-29 | — | — | — |
SL8-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection channel 1 | — | W34 | — | 0.5 | OEM-A36-12 | — | — | — |
| 2 | Injection channel 2 | — | W35 | — | 0.5 | OEM-A36-14 | — | — | — |
| 3 | Injection channel 3 | — | W36 | — | 0.5 | OEM-A36-22 | — | — | — |
| 4 | Injection channel 4 | — | W37 | — | 0.5 | OEM-A36-25 | — | — | — |
| 5 | Injection channel 5 | — | W38 | — | 0.5 | OEM-A36-24 | — | — | — |
| 6 | Injection channel 6 | — | W39 | — | 0.5 | OEM-A36-32 | — | — | — |
| 7 | Injection channel 7 | — | W40 | — | 0.5 | OEM-A36-13 | — | — | — |
| 8 | Injection channel 8 | — | W41 | — | 0.5 | OEM-A36-23 | — | — | — |
| 9 | Sensor supply 8V | — | — | — | — | — | — | — | — |
| 10 | Auxiliary output 1 | — | W55 | — | 0.5 | OEM-A35-35 | — | — | — |
| 11 | Auxiliary output 2 | — | W56 | — | 0.5 | OEM-A35-5 | — | — | — |
| 12 | Auxiliary output 3 | — | W57 | — | 0.5 | OEM-A35-7 | — | — | — |
| 13 | Auxiliary output 4 | — | W58 | — | 0.5 | OEM-A34-5 | — | — | — |
| 14 | Auxiliary output 5 | — | W51 | — | 0.5 | OEM-A35-12 | — | — | — |
| 15 | Auxiliary output 6 | — | W52 | — | 0.5 | OEM-A35-11 | — | — | — |
| 16 | Auxiliary output 7 | — | W53 | — | 0.5 | OEM-A33-20 | — | — | — |
| 17 | Auxiliary output 8 | — | W54 | — | 0.5 | OEM-A35-17 | — | — | — |
| 18 | Auxiliary output 9 | — | W48 | — | 0.5 | OEM-A36-1 | — | — | — |
| 19 | Auxiliary output 10 | — | W49 | — | 0.5 | OEM-A36-2 | — | — | — |
| 20 | Digital input 1 | — | W69 | — | 0.5 | OEM-A33-14 | — | — | — |
| 21 | Digital input 2 | — | W70 | — | 0.5 | OEM-A33-15 | — | — | — |
| 22 | Digital input 3 | — | W71 | — | 0.5 | OEM-A33-16 | — | — | — |
| 23 | Digital input 4 | — | W72 | — | 0.5 | OEM-A33-17 | — | — | — |
| 24 | Digital input 5 | — | W73 | — | 0.5 | OEM-A33-3 | — | — | — |
| 25 | Digital input 6 | — | W74 | — | 0.5 | OEM-A33-7 | — | — | — |
| 26 | Ignition channel 1 | — | W30 | — | 0.5 | OEM-A36-21 | — | — | — |
| 27 | Ignition channel 2 | — | W31 | — | 0.5 | OEM-A36-10 | — | — | — |
| 28 | Ignition channel 3 | — | W32 | — | 0.5 | OEM-A36-31 | — | — | — |
| 29 | Ignition channel 4 | — | W33 | — | 0.5 | OEM-A36-8 | — | — | — |
| 30 | Ignition channel 5 | — | — | — | — | — | — | — | — |
| 31 | Ignition channel 6 | — | — | — | — | — | — | — | — |
| 32 | Ignition channel 7 | — | — | — | — | — | — | — | — |
| 33 | Ignition channel 8 | — | — | — | — | — | — | — | — |
| 34 | Aux 9–10 14V supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
SL8-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU 14V supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Sensor supply Vref1 5.0V | — | W23 | — | 0.5 | SP-5V1-1 | — | — | — |
| 3 | EFI relay output (low side, 200 mA) | — | W50 | — | 0.5 | OEM-A35-13 | — | — | — |
| 4 | Ignition switch input | — | W47 | — | 0.5 | OEM-A33-27 | — | — | — |
| 5 | Crank index sensor + | — | W24 | — | 0.5 | OEM-A34-16 | — | — | — |
| 6 | Crank index sensor − | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Sync sensor + | — | W26 | — | 0.5 | OEM-A34-14 | — | — | — |
| 8 | Sync sensor − | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 9 | Shield (crank/sync/knock) | — | W46 | — | 0.5 | SP-SHD-1 | — | — | — |
| 10 | Analog sensor 0V reference | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Analog input 1 | — | W59 | — | 0.5 | OEM-A33-22 | — | — | — |
| 12 | Analog input 2 | — | W60 | — | 0.5 | OEM-A34-20 | — | — | — |
| 13 | Analog input 3 | — | W61 | — | 0.5 | OEM-A35-31 | — | — | — |
| 14 | Analog input 4 | — | W62 | — | 0.5 | OEM-A36-28 | — | — | — |
| 15 | Analog input 5 | — | W63 | — | 0.5 | OEM-A35-23 | — | — | — |
| 16 | Knock 1 + | — | W28 | — | 0.5 | OEM-A34-28 | — | — | — |
| 17 | Knock 1 − | — | — | — | — | — | — | — | — |
| 18 | ECU ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Analog input 6 | — | W64 | — | 0.5 | OEM-A36-18 | — | — | — |
| 20 | Analog input 7 (switchable 1k pull-up) | — | W65 | — | 0.5 | OEM-A34-21 | — | — | — |
| 21 | Analog input 8 (switchable 1k pull-up) | — | W66 | — | 0.5 | OEM-A36-30 | — | — | — |
| 22 | Analog input 9 (switchable 1k pull-up) | — | W67 | — | 0.5 | OEM-A33-12 | — | — | — |
| 23 | Analog input 10 (switchable 1k pull-up) | — | W68 | — | 0.5 | OEM-A36-20 | — | — | — |
| 24 | Knock 2 + | — | W29 | — | 0.5 | OEM-A34-17 | — | — | — |
| 25 | Knock 2 − | — | — | — | — | — | — | — | — |
| 26 | ECU ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | CAN 1 H | — | W75 | — | 0.5 | OEM-A33-19 | — | — | — |
| 28 | CAN 1 L | — | W76 | — | 0.5 | OEM-A33-18 | — | — | — |
| 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 | — | — | W14 | — | 0.5 | OEM-A34-27 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-A33-29 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-A35-29 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-A35-30 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-A36-29 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | SL8-B-10 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | SL8-B-6 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | SL8-B-8 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A33-1 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A34-6 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | SL8-A-34 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | SL8-B-1 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W19 | — | 0.5 | OEM-A34-34 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-A35-21 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-A35-22 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-A36-19 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | SL8-B-2 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A33-4 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A34-1 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A34-2 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A34-3 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A36-3 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-A36-4 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | SL8-B-18 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | SL8-B-26 | — | — | — |
SP-SHD
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W42 | — | 0.5 | OEM-A33-28 | — | — | — |
| 1 | — | — | W43 | — | 0.5 | OEM-A34-29 | — | — | — |
| 1 | — | — | W44 | — | 0.5 | OEM-A34-30 | — | — | — |
| 1 | — | — | W45 | — | 0.5 | OEM-A34-35 | — | — | — |
| 1 | — | — | W46 | — | 0.5 | SL8-B-9 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A33-1 | ECU power (+B2, main relay) | power_in | SL8-A-34 + SL8-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-A33-12 | Intake air temperature (THA, in MAF) | temp_in | SL8-B-22 | Analog input 9 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A33-14 | Starter signal (STSW2) | digital_in | SL8-A-20 | Digital input 1 | digital_in | single_source | |
| OEM-A33-15 | Clutch switch (CLSW) | digital_in | SL8-A-21 | Digital input 2 | digital_in | single_source | |
| OEM-A33-16 | Neutral switch (NSW) | digital_in | SL8-A-22 | Digital input 3 | digital_in | single_source | |
| OEM-A33-17 | Starter signal (STSW2) | digital_in | SL8-A-23 | Digital input 4 | digital_in | single_source | |
| OEM-A33-18 | CAN low (CANL) | can_l | SL8-B-28 | CAN 1 L | can_l | single_source | |
| OEM-A33-19 | CAN high (CANH) | can_h | SL8-B-27 | CAN 1 H | can_h | single_source | |
| OEM-A33-2 | Battery constant (BATT, memory) | power_in | — | — | — | single_source | |
| OEM-A33-20 | Blower relay (HB) | low_side_out | SL8-A-16 | Auxiliary output 7 | switch_out | single_source | |
| OEM-A33-22 | Mass air flow (VG) | analog_in | SL8-B-11 | Analog input 1 | analog_in | single_source | |
| OEM-A33-27 | Ignition switch sense (IGSW, IG2 relay) | digital_in | SL8-B-4 | Ignition switch input | digital_in | single_source | |
| OEM-A33-28 | Shield ground (SLE2) | shield | SL8-B-9 | Shield (crank/sync/knock) | shield | single_source | |
| OEM-A33-29 | MAF sensor ground (E2G) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A33-3 | Stop light switch (ST1-) | digital_in | SL8-A-24 | Digital input 5 | digital_in | single_source | |
| OEM-A33-4 | Power ground (EC) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A33-7 | Stop light switch (STP) | digital_in | SL8-A-25 | Digital input 6 | digital_in | single_source | |
| OEM-A33-8 | A/C pressure sensor (ACP) | analog_in | — | — | — | single_source | |
| OEM-A34-1 | Power ground (E03) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A34-11 | DI injector confirmation (IJF1) | analog_in | — | — | — | single_source | |
| OEM-A34-13 | High-pressure fuel pump spill valve (FPF) | low_side_out | — | — | — | single_source | |
| OEM-A34-14 | VVT cam sensor exhaust bank 1 (EV1+) | trigger_in | SL8-B-7 | Sync sensor + | trigger_in | single_source | |
| OEM-A34-15 | VVT cam sensor intake bank 2 (VV2+) | trigger_in | — | — | — | single_source | |
| OEM-A34-16 | Crank position (NE+) | trigger_in | SL8-B-5 | Crank index sensor + | trigger_in | single_source | |
| OEM-A34-17 | Knock sensor 2 (KNK2) | knock_in | SL8-B-24 | Knock 2 + | knock_in | single_source | |
| OEM-A34-18 | A/F ratio sensor (A1A-) | — | — | — | — | single_source | |
| OEM-A34-19 | A/F ratio sensor (A1A+) | — | — | — | — | single_source | |
| OEM-A34-2 | Power ground (E04) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A34-20 | Manifold absolute pressure (PIM) | analog_in | SL8-B-12 | Analog input 2 | analog_in | single_source | |
| OEM-A34-21 | Heated oxygen sensor (OX1B, rear) | lambda_nb_in | SL8-B-20 | Analog input 7 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A34-25 | VVT cam sensor exhaust bank 2 (EV2+) | trigger_in | — | — | — | single_source | |
| OEM-A34-26 | VVT cam sensor intake bank 1 (VV1+) | trigger_in | — | — | — | single_source | |
| OEM-A34-27 | Crank position return (NE-) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A34-28 | Knock sensor 1 (KNK1) | knock_in | SL8-B-16 | Knock 1 + | knock_in | single_source | |
| OEM-A34-29 | Shield ground (EKNK) | shield | SL8-B-9 | Shield (crank/sync/knock) | shield | single_source | |
| OEM-A34-3 | Power ground (E05) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A34-30 | Shield ground (SLE1) | shield | SL8-B-9 | Shield (crank/sync/knock) | shield | single_source | |
| OEM-A34-31 | DI injector confirmation (IJF2) | analog_in | — | — | — | single_source | |
| OEM-A34-32 | High-pressure fuel pump spill valve (FPD) | low_side_out | — | — | — | single_source | |
| OEM-A34-34 | OCV power source (VCV, 5V) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-A34-35 | Shield ground (SLE3) | shield | SL8-B-9 | Shield (crank/sync/knock) | shield | single_source | |
| OEM-A34-5 | A/F ratio sensor heater (HA1A) | low_side_out | SL8-A-13 | Auxiliary output 4 | switch_out | single_source | |
| OEM-A34-6 | ECU power (+B, main relay) | power_in | SL8-A-34 + SL8-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-A34-9 | Fuel pressure sensor (PR) | analog_in | — | — | — | single_source | |
| OEM-A35-1 | Canister vent valve (VPMP) | low_side_out | — | — | — | single_source | |
| OEM-A35-10 | Fuel pump control monitor (DI) | analog_in | — | — | — | single_source | |
| OEM-A35-11 | Cooling fan relay 3 (FAN1) | low_side_out | SL8-A-15 | Auxiliary output 6 | switch_out | single_source | |
| OEM-A35-12 | Cooling fan relay 2 (FAN2) | low_side_out | SL8-A-14 | Auxiliary output 5 | switch_out | single_source | |
| OEM-A35-13 | EFI main relay 1 (SSHUT) | low_side_out | SL8-B-3 | EFI relay output (low side, 200 mA) | low_side_out | single_source | |
| OEM-A35-15 | Tachometer output (TACH) | tacho_out | — | — | — | single_source | |
| OEM-A35-17 | ETCS relay (MCR) | low_side_out | SL8-A-17 | Auxiliary output 8 | switch_out | single_source | |
| OEM-A35-19 | Fuel pump control (FPC) | low_side_out | — | — | — | single_source | |
| OEM-A35-20 | Canister pressure sensor (PPMP) | analog_in | — | — | — | single_source | |
| OEM-A35-21 | Accelerator pedal 5V supply (VCPA) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-A35-22 | Accelerator pedal 5V supply (VCP2) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-A35-23 | Accelerator pedal position (VPA) | analog_in | SL8-B-15 | Analog input 5 | analog_in | single_source | |
| OEM-A35-26 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-A35-29 | Accelerator pedal ground (EPA) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A35-30 | Accelerator pedal ground (EPA2) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A35-31 | Accelerator pedal position 2 (VPA2) | analog_in | SL8-B-13 | Analog input 3 | analog_in | single_source | |
| OEM-A35-35 | A/C clutch relay (AC) | low_side_out | SL8-A-10 | Auxiliary output 1 | switch_out | single_source | |
| OEM-A35-5 | Injector relay (IREL) | low_side_out | SL8-A-11 | Auxiliary output 2 | switch_out | single_source | |
| OEM-A35-7 | ETCS relay (+BM) | low_side_out | SL8-A-12 | Auxiliary output 3 | switch_out | single_source | |
| OEM-A35-8 | Leak detection pump (MPMP) | low_side_out | — | — | — | single_source | |
| OEM-A36-1 | Throttle actuator motor - (M-) | hbridge_out | SL8-A-18 | Auxiliary output 9 | hbridge_out | single_source | |
| OEM-A36-10 | Ignition coil 2 (IGT2) | ignition_out | SL8-A-27 | Ignition channel 2 | ignition_out | single_source | |
| OEM-A36-11 | Purge valve (PRG) | low_side_out | — | — | — | single_source | |
| OEM-A36-12 | Injector 1 port (#10) | injector_out | SL8-A-1 | Injection channel 1 | injector_out | single_source | |
| OEM-A36-13 | Injector 4 port (#40) | injector_out | SL8-A-7 | Injection channel 7 | injector_out | single_source | |
| OEM-A36-14 | Injector 1 direct (#1) | injector_out | SL8-A-2 | Injection channel 2 | injector_out | single_source | |
| OEM-A36-16 | OCV intake bank 2 (OC2) | low_side_out | — | — | — | single_source | |
| OEM-A36-17 | OCV intake bank 1 (OC1) | low_side_out | — | — | — | single_source | |
| OEM-A36-18 | Throttle position (VTA1) | analog_in | SL8-B-19 | Analog input 6 | analog_in | single_source | |
| OEM-A36-19 | Sensor 5V supply (VC) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-A36-2 | Throttle actuator motor + (M+) | hbridge_out | SL8-A-19 | Auxiliary output 10 | hbridge_out | single_source | |
| OEM-A36-20 | Oil temperature (OT) | temp_in | SL8-B-23 | Analog input 10 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A36-21 | Ignition coil 1 (IGT1) | ignition_out | SL8-A-26 | Ignition channel 1 | ignition_out | single_source | |
| OEM-A36-22 | Injector 2 port (#20) | injector_out | SL8-A-3 | Injection channel 3 | injector_out | single_source | |
| OEM-A36-23 | Injector 4 direct (#4) | injector_out | SL8-A-8 | Injection channel 8 | injector_out | single_source | |
| OEM-A36-24 | Injector 3 direct (#3) | injector_out | SL8-A-5 | Injection channel 5 | injector_out | single_source | |
| OEM-A36-25 | Injector 2 direct (#2) | injector_out | SL8-A-4 | Injection channel 4 | injector_out | single_source | |
| OEM-A36-28 | Throttle position 2 (VTA2) | analog_in | SL8-B-14 | Analog input 4 | analog_in | single_source | |
| OEM-A36-29 | Sensor ground (E1) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A36-3 | Power ground (E02) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A36-30 | Engine coolant temperature (THW) | temp_in | SL8-B-21 | Analog input 8 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A36-31 | Ignition coil 3 (IGT3) | ignition_out | SL8-A-28 | Ignition channel 3 | ignition_out | single_source | |
| OEM-A36-32 | Injector 3 port (#30) | injector_out | SL8-A-6 | Injection channel 6 | injector_out | single_source | |
| OEM-A36-4 | Power ground (E01) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A36-5 | OCV exhaust bank 2 (OE2) | low_side_out | — | — | — | single_source | |
| OEM-A36-6 | Heated oxygen sensor heater (HT1B) | low_side_out | — | — | — | single_source | |
| OEM-A36-7 | OCV exhaust bank 1 (OE1) | low_side_out | — | — | — | single_source | |
| OEM-A36-8 | Ignition coil 4 (IGT4) | ignition_out | SL8-A-29 | Ignition channel 4 | ignition_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A33-1 | SP-14V-1 | 0.85 | no route | ECU power (+B2, main relay) | — | |
| W2 | OEM-A34-6 | SP-14V-1 | 0.85 | no route | ECU power (+B, main relay) | — | |
| W3 | SP-14V-1 | SL8-A-34 | 0.85 | no route | Aux 9–10 14V supply | — | |
| W4 | SP-14V-1 | SL8-B-1 | 0.85 | no route | ECU 14V supply | — | |
| W5 | OEM-A33-4 | SP-GND-1 | 0.85 | no route | Power ground (EC) | — | |
| W6 | OEM-A34-1 | SP-GND-1 | 0.85 | no route | Power ground (E03) | — | |
| W7 | OEM-A34-2 | SP-GND-1 | 0.85 | no route | Power ground (E04) | — | |
| W8 | OEM-A34-3 | SP-GND-1 | 0.85 | no route | Power ground (E05) | — | |
| W9 | OEM-A36-3 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W10 | OEM-A36-4 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W11 | SP-GND-1 | SL8-B-18 | 0.85 | no route | ECU ground | — | |
| W12 | SP-GND-1 | SL8-B-26 | 0.85 | no route | ECU ground | — | |
| W13 | OEM-A33-29 | SP-0V-1 | 0.5 | no route | MAF sensor ground (E2G) | — | |
| W14 | OEM-A34-27 | SP-0V-1 | 0.5 | no route | Crank position return (NE-) | — | |
| W15 | OEM-A35-29 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (EPA) | — | |
| W16 | OEM-A35-30 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (EPA2) | — | |
| W17 | OEM-A36-29 | SP-0V-1 | 0.5 | no route | Sensor ground (E1) | — | |
| W18 | SP-0V-1 | SL8-B-10 | 0.5 | no route | Analog sensor 0V reference | — | |
| W19 | OEM-A34-34 | SP-5V1-1 | 0.5 | no route | OCV power source (VCV, 5V) | — | |
| W20 | OEM-A35-21 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCPA) | — | |
| W21 | OEM-A35-22 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCP2) | — | |
| W22 | OEM-A36-19 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VC) | — | |
| W23 | SP-5V1-1 | SL8-B-2 | 0.5 | no route | Sensor supply Vref1 5.0V | — | |
| W24 | OEM-A34-16 | SL8-B-5 | 0.5 | no route | Crank position (NE+) | — | |
| W25 | SP-0V-1 | SL8-B-6 | 0.5 | no route | Crank index sensor − | — | |
| W26 | OEM-A34-14 | SL8-B-7 | 0.5 | no route | VVT cam sensor exhaust bank 1 (EV1+) | — | |
| W27 | SP-0V-1 | SL8-B-8 | 0.5 | no route | Sync sensor − | — | |
| W28 | OEM-A34-28 | SL8-B-16 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W29 | OEM-A34-17 | SL8-B-24 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W30 | OEM-A36-21 | SL8-A-26 | 0.5 | no route | Ignition coil 1 (IGT1) | — | |
| W31 | OEM-A36-10 | SL8-A-27 | 0.5 | no route | Ignition coil 2 (IGT2) | — | |
| W32 | OEM-A36-31 | SL8-A-28 | 0.5 | no route | Ignition coil 3 (IGT3) | — | |
| W33 | OEM-A36-8 | SL8-A-29 | 0.5 | no route | Ignition coil 4 (IGT4) | — | |
| W34 | OEM-A36-12 | SL8-A-1 | 0.5 | no route | Injector 1 port (#10) | — | |
| W35 | OEM-A36-14 | SL8-A-2 | 0.5 | no route | Injector 1 direct (#1) | — | |
| W36 | OEM-A36-22 | SL8-A-3 | 0.5 | no route | Injector 2 port (#20) | — | |
| W37 | OEM-A36-25 | SL8-A-4 | 0.5 | no route | Injector 2 direct (#2) | — | |
| W38 | OEM-A36-24 | SL8-A-5 | 0.5 | no route | Injector 3 direct (#3) | — | |
| W39 | OEM-A36-32 | SL8-A-6 | 0.5 | no route | Injector 3 port (#30) | — | |
| W40 | OEM-A36-13 | SL8-A-7 | 0.5 | no route | Injector 4 port (#40) | — | |
| W41 | OEM-A36-23 | SL8-A-8 | 0.5 | no route | Injector 4 direct (#4) | — | |
| W42 | OEM-A33-28 | SP-SHD-1 | 0.5 | no route | Shield ground (SLE2) | — | |
| W43 | OEM-A34-29 | SP-SHD-1 | 0.5 | no route | Shield ground (EKNK) | — | |
| W44 | OEM-A34-30 | SP-SHD-1 | 0.5 | no route | Shield ground (SLE1) | — | |
| W45 | OEM-A34-35 | SP-SHD-1 | 0.5 | no route | Shield ground (SLE3) | — | |
| W46 | SP-SHD-1 | SL8-B-9 | 0.5 | no route | Shield (crank/sync/knock) | — | |
| W47 | OEM-A33-27 | SL8-B-4 | 0.5 | no route | Ignition switch sense (IGSW, IG2 relay) | — | |
| W48 | OEM-A36-1 | SL8-A-18 | 0.5 | no route | Throttle actuator motor - (M-) | — | |
| W49 | OEM-A36-2 | SL8-A-19 | 0.5 | no route | Throttle actuator motor + (M+) | — | |
| W50 | OEM-A35-13 | SL8-B-3 | 0.5 | no route | EFI main relay 1 (SSHUT) | — | |
| W51 | OEM-A35-12 | SL8-A-14 | 0.5 | no route | Cooling fan relay 2 (FAN2) | — | |
| W52 | OEM-A35-11 | SL8-A-15 | 0.5 | no route | Cooling fan relay 3 (FAN1) | — | |
| W53 | OEM-A33-20 | SL8-A-16 | 0.5 | no route | Blower relay (HB) | — | |
| W54 | OEM-A35-17 | SL8-A-17 | 0.5 | no route | ETCS relay (MCR) | — | |
| W55 | OEM-A35-35 | SL8-A-10 | 0.5 | no route | A/C clutch relay (AC) | — | |
| W56 | OEM-A35-5 | SL8-A-11 | 0.5 | no route | Injector relay (IREL) | — | |
| W57 | OEM-A35-7 | SL8-A-12 | 0.5 | no route | ETCS relay (+BM) | — | |
| W58 | OEM-A34-5 | SL8-A-13 | 0.5 | no route | A/F ratio sensor heater (HA1A) | — | |
| W59 | OEM-A33-22 | SL8-B-11 | 0.5 | no route | Mass air flow (VG) | — | |
| W60 | OEM-A34-20 | SL8-B-12 | 0.5 | no route | Manifold absolute pressure (PIM) | — | |
| W61 | OEM-A35-31 | SL8-B-13 | 0.5 | no route | Accelerator pedal position 2 (VPA2) | — | |
| W62 | OEM-A36-28 | SL8-B-14 | 0.5 | no route | Throttle position 2 (VTA2) | — | |
| W63 | OEM-A35-23 | SL8-B-15 | 0.5 | no route | Accelerator pedal position (VPA) | — | |
| W64 | OEM-A36-18 | SL8-B-19 | 0.5 | no route | Throttle position (VTA1) | — | |
| W65 | OEM-A34-21 | SL8-B-20 | 0.5 | no route | Heated oxygen sensor (OX1B, rear) | — | |
| W66 | OEM-A36-30 | SL8-B-21 | 0.5 | no route | Engine coolant temperature (THW) | — | |
| W67 | OEM-A33-12 | SL8-B-22 | 0.5 | no route | Intake air temperature (THA, in MAF) | — | |
| W68 | OEM-A36-20 | SL8-B-23 | 0.5 | no route | Oil temperature (OT) | — | |
| W69 | OEM-A33-14 | SL8-A-20 | 0.5 | no route | Starter signal (STSW2) | — | |
| W70 | OEM-A33-15 | SL8-A-21 | 0.5 | no route | Clutch switch (CLSW) | — | |
| W71 | OEM-A33-16 | SL8-A-22 | 0.5 | no route | Neutral switch (NSW) | — | |
| W72 | OEM-A33-17 | SL8-A-23 | 0.5 | no route | Starter signal (STSW2) | — | |
| W73 | OEM-A33-3 | SL8-A-24 | 0.5 | no route | Stop light switch (ST1-) | — | |
| W74 | OEM-A33-7 | SL8-A-25 | 0.5 | no route | Stop light switch (STP) | — | |
| W75 | OEM-A33-19 | SL8-B-27 | 0.5 | no route | CAN high (CANH) | — | |
| W76 | OEM-A33-18 | SL8-B-28 | 0.5 | no route | CAN low (CANL) | — |
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) | 55.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (18)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | DBW_SENSOR_INPUT | tps | Only 1 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them. |
| warn | DBW_MOTOR_CURRENT | SL8-A-18 | Cannot confirm SL8 can drive the throttle motor: SL8-A-18 "Auxiliary output 9" is rated 5.0 A, but the motor current at OEM-A36-1 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_CURRENT | SL8-A-19 | Cannot confirm SL8 can drive the throttle motor: SL8-A-19 "Auxiliary output 10" is rated 5.0 A, but the motor current at OEM-A36-2 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_ISOLATION | SL8-A-34 | SL8-A-34 "Aux 9–10 14V supply" is fed from the same net as the ECU main supply (SL8-B-1). Link's S2000 DBW wiring feeds the throttle-motor supply through a separate isolation relay switched by the ECU, so motor power can be cut on a throttle fault. Add one, or confirm SL8 cuts the H-bridge internally. |
| warn | NO_FUEL_PUMP | fuel pump | This engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car. |
| info | NET_FAMILY | OEM-A33-12 ↔ SL8-B-22 | OEM-A33-12 "Intake air temperature (THA, in MAF)" [temp_in] is wired to SL8-B-22 "Analog input 9 (switchable 1k pull-up)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A33-20 ↔ SL8-A-16 | OEM-A33-20 "Blower relay (HB)" [low_side_out] is wired to SL8-A-16 "Auxiliary output 7" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A33-29 ↔ SL8-B-6 | OEM-A33-29 "MAF sensor ground (E2G)" [sensor_ground] is wired to SL8-B-6 "Crank index sensor −" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-A34-5 ↔ SL8-A-13 | OEM-A34-5 "A/F ratio sensor heater (HA1A)" [low_side_out] is wired to SL8-A-13 "Auxiliary output 4" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A35-11 ↔ SL8-A-15 | OEM-A35-11 "Cooling fan relay 3 (FAN1)" [low_side_out] is wired to SL8-A-15 "Auxiliary output 6" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A35-12 ↔ SL8-A-14 | OEM-A35-12 "Cooling fan relay 2 (FAN2)" [low_side_out] is wired to SL8-A-14 "Auxiliary output 5" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A35-17 ↔ SL8-A-17 | OEM-A35-17 "ETCS relay (MCR)" [low_side_out] is wired to SL8-A-17 "Auxiliary output 8" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A35-35 ↔ SL8-A-10 | OEM-A35-35 "A/C clutch relay (AC)" [low_side_out] is wired to SL8-A-10 "Auxiliary output 1" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A35-5 ↔ SL8-A-11 | OEM-A35-5 "Injector relay (IREL)" [low_side_out] is wired to SL8-A-11 "Auxiliary output 2" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A35-7 ↔ SL8-A-12 | OEM-A35-7 "ETCS relay (+BM)" [low_side_out] is wired to SL8-A-12 "Auxiliary output 3" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A36-20 ↔ SL8-B-23 | OEM-A36-20 "Oil temperature (OT)" [temp_in] is wired to SL8-B-23 "Analog input 10 (switchable 1k pull-up)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A36-30 ↔ SL8-B-21 | OEM-A36-30 "Engine coolant temperature (THW)" [temp_in] is wired to SL8-B-21 "Analog input 8 (switchable 1k pull-up)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 24 optional OEM pins are not mapped: OEM-A33-8 A/C pressure sensor (ACP); OEM-A34-11 DI injector confirmation (IJF1); OEM-A34-13 High-pressure fuel pump spill valve (FPF); OEM-A34-15 VVT cam sensor intake bank 2 (VV2+); OEM-A34-18 A/F ratio sensor (A1A-); OEM-A34-19 A/F ratio sensor (A1A+); OEM-A34-25 VVT cam sensor exhaust bank 2 (EV2+); OEM-A34-26 VVT cam sensor intake bank 1 (VV1+); OEM-A34-31 DI injector confirmation (IJF2); OEM-A34-32 High-pressure fuel pump spill valve (FPD); OEM-A34-9 Fuel pressure sensor (PR); OEM-A35-1 Canister vent valve (VPMP); OEM-A35-10 Fuel pump control monitor (DI); OEM-A35-15 Tachometer output (TACH); OEM-A35-19 Fuel pump control (FPC); OEM-A35-20 Canister pressure sensor (PPMP); OEM-A35-26 Starter signal (STA); OEM-A35-8 Leak detection pump (MPMP); OEM-A36-11 Purge valve (PRG); OEM-A36-16 OCV intake bank 2 (OC2); OEM-A36-17 OCV intake bank 1 (OC1); OEM-A36-5 OCV exhaust bank 2 (OE2); OEM-A36-6 Heated oxygen sensor heater (HT1B); OEM-A36-7 OCV exhaust bank 1 (OE1) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-A33-2 | 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 2026-10-09. Review every wire against both manuals before building. Not wired: - OEM-A33 2: Battery constant (BATT, memory): Emtron SL8 has no battery-constant input; not needed - OEM-A34 26: VVT cam sensor intake bank 1 (VV1+): no free cam_hall/cam_vr/frequency_in input on Emtron SL8 - OEM-A34 25: VVT cam sensor exhaust bank 2 (EV2+): no free cam_hall/cam_vr/frequency_in input on Emtron SL8 - OEM-A34 15: VVT cam sensor intake bank 2 (VV2+): no free cam_hall/cam_vr/frequency_in input on Emtron SL8 - SL8-B 17: Knock 1 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - SL8-B 25: Knock 2 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - OEM-A36 6: Heated oxygen sensor heater (HT1B): no free heater_low_side/low_side/ls_hs/hbridge on Emtron SL8 - OEM-A36 17: OCV intake bank 1 (OC1): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A36 7: OCV exhaust bank 1 (OE1): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A36 16: OCV intake bank 2 (OC2): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A36 5: OCV exhaust bank 2 (OE2): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A34 13: High-pressure fuel pump spill valve (FPF): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A34 32: High-pressure fuel pump spill valve (FPD): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A35 1: Canister vent valve (VPMP): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A35 19: Fuel pump control (FPC): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A35 8: Leak detection pump (MPMP): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A36 11: Purge valve (PRG): no free low_side/ls_hs/injector/hbridge on Emtron SL8 - OEM-A35 15: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on Emtron SL8 - OEM-A33 8: A/C pressure sensor (ACP): no free analog_0_5 on Emtron SL8 - OEM-A34 11: DI injector confirmation (IJF1): no free analog_0_5 on Emtron SL8 - OEM-A34 31: DI injector confirmation (IJF2): no free analog_0_5 on Emtron SL8 - OEM-A34 9: Fuel pressure sensor (PR): no free analog_0_5 on Emtron SL8 - OEM-A35 10: Fuel pump control monitor (DI): no free analog_0_5 on Emtron SL8 - OEM-A35 20: Canister pressure sensor (PPMP): no free analog_0_5 on Emtron SL8 - OEM-A35 26: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Emtron SL8 - OEM-A34 18: A/F ratio sensor (A1A-): not classified in the library; wire by hand - OEM-A34 19: A/F ratio sensor (A1A+): not classified in the library; wire by hand
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 | vendor_doc | Scion FR-S / Toyota 86 Repair Manual (2013) — FA20 ECM terminal pinout (SFI system) | https://gt86.me/images/0/09/2013_Scion_FR-S_Repair_Manual.pdf | — | — | — |