Wiring Diagram Daihatsu L9 Ecu Pinout May 2026
A standard wiring diagram daihatsu l9 ecu pinout will show the ECU as the central hub. Here’s how to interpret it:
| Pin No. | Wire Color (Typ) | Function | Description | | :--- | :--- | :--- | :--- | | 11 | Yellow/Red | VC (Voltage Control) | +5V Reference for TPS/MAF | | 13 | Light Green | THA (Intake Air Temp) | Signal from IAT sensor | | 14 | Blue | THW (Water Temp) | Signal from Coolant Temp sensor | | 15 | White | VS/PA (Air Flow) | Signal from MAF/Vacuum sensor | | 22 | Green | Ne+ (Crank/RPM) | Distributor/Crank Angle Signal (+) | | 23 | Red | Ne- (Crank/RPM) | Distributor/Crank Angle Signal (-) | wiring diagram daihatsu l9 ecu pinout
| Pin | Wire Color | Signal | Function | |-----|------------|--------|-----------| | B1 | L | INJ1 | Injector cylinder #1 | | B2 | Lg | INJ2 | Injector cylinder #2 | | B3 | P | INJ3 | Injector cylinder #3 | | B4 | R/W | IACV | Idle air control valve | | B5 | G/W | FP | Fuel pump relay | | B6 | V | CEL | Check engine light | | B7 | B/O | TACH | Tachometer output | | B8 | Y | STA | Starter relay control | | B9 | L/R | FPR | Fuel pressure regulator VSV | | B10 | B/Y | O2H | O2 sensor heater | | B11 | W/B | VTA2 | TPS idle switch (closed throttle) | | B12 | R | W | Warning lamp (oil/AT) | | B13 | B | E3 | Shield ground | | B14 | G | IAC | Idle air control (secondary) | | B15 | L | VAP | Evap purge VSV | | B16 | P | MIL | Malfunction indicator lamp | | B17 | G/Y | TC | Diagnostic check connector (T) | | B18 | B | E01 | Power ground (duplicate) | | B19 | B | E02 | Power ground (duplicate) | | B20 | R/L | VF | Diagnostic monitor signal | | B21 | Lg/B | A/C | A/C compressor relay | | B22 | W/L | +B2 | Ignition switch power (IG) | A standard 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 | and controls injectors and ignition coils.
This connector supplies primary power, sensor grounds, and controls injectors and ignition coils.