Daihatsu Hijet Efse Ecu Pinout Hot Link

: Oil Control Valve for Variable Valve Timing (VVT).

| Pin | Function | Notes | |------|---------------------|-----------------------------| | A1 | +12V Battery (main) | Always hot | | A2 | +12V Ignition (IG) | Hot in RUN/START | | A3 | Ground (ECU main) | To chassis/engine | | B4 | Coolant temp sensor | 2-wire sensor – critical for hot start | | B6 | Ignition signal (from igniter) | Or to igniter? | | C2 | Fuel pump relay control | Grounds relay coil | | C5 | Crank signal (distributor) | RPM signal | | C7 | TPS (if equipped) | Some EFSE have TPS, some don't | daihatsu hijet efse ecu pinout hot

Using a digital multimeter, check the resistance (Ω) of your fuel injectors, idle control valves, and relays. A drastically low resistance indicates a shorted coil, which will draw too much current through the ECU. : Oil Control Valve for Variable Valve Timing (VVT)

Accidentally reversing the polarity of your battery (or jump-starting improperly) can send a destructive power surge through the ECU, damaging voltage regulators and causing components to overheat. How to Diagnose and Fix the Overheating Issue A drastically low resistance indicates a shorted coil,