L9 Ecu Pinout — Wiring Diagram Daihatsu

| Pin No. | Wire Color (Typ) | Function | Description | | :--- | :--- | :--- | :--- | | 1 | White/Red | IG SW (Ignition) | +12V when key is ON | | 2 | Black/Yellow | +B (Battery) | Constant +12V from Battery | | 10 | Black | E01 (Ground) | Power Ground (to chassis/block) | | 12 | Black | E02 (Ground) | Power Ground (to chassis/block) | | 20 | Brown | E1 (Signal Ground) | Sensor Ground (ECU internal) |

Note: Replace “Pin X” with actual numbered pin positions from your ECU harness. Use a multimeter or continuity tester to confirm before powering. wiring diagram daihatsu l9 ecu pinout

| Pin | Wire Color | Signal | Function | |-----|------------|--------|-----------| | A1 | B/Y | +B | Main relay power (12V) | | A2 | B/R | +B1 | Injector/coil power | | A3 | B | E01 | Power ground | | A4 | B | E02 | Power ground | | A5 | W/B | STA | Starter signal | | A6 | Y/B | NSW | Neutral start switch (AT) | | A7 | G/W | VTA | TPS signal | | A8 | G/R | VC | TPS 5V reference | | A9 | L/R | PIM | MAP sensor signal | | A10 | Y/R | THW | Engine coolant temp | | A11 | B/W | THA | Intake air temp | | A12 | R/L | VAF | Airflow meter (if equipped) | | A13 | B | E2 | Sensor ground | | A14 | R | IGT1 | Ignition trigger #1 | | A15 | G | IGT2 | Ignition trigger #2 | | A16 | W | IGF | Ignition confirmation | | A17 | V/W | OX | Oxygen sensor | | A18 | R/W | VSV | EGR VSV (if equipped) | | A19 | L | ACT | Idle speed control (ISC) | | A20 | B/R | FAN | Radiator fan relay | | A21 | G/Y | A/C | A/C request input | | A22 | Y | PS | Power steering input | | A23 | Lg | SPD | Vehicle speed sensor | | A24 | R/Y | MREL | EFI main relay control | | A25 | B/R | +BM | Backup power (constant 12V) | | A26 | B | E1 | ECU logic ground | | Pin No