Note that the EF-DET and JB-DET wiring harnesses cannot be directly interchanged. The JB-DET requires an extra injector driver path, a completely separate ignition coil triggering layout, and distinct cam/crank sensor configurations.
| 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) | wiring diagram daihatsu l9 ecu pinout
Ground switch output that illuminates the dashboard engine warning light. 🔍 Diagnostics and Troubleshooting Tips Note that the EF-DET and JB-DET wiring harnesses