When troubleshooting live circuits on your Hijet, never pierce the wires with crude probes, as this introduces moisture and eventual green-wire corrosion. Instead, use a digital multimeter (DMM) and a thin backprobe pin.
: Corroded ground wires increase electrical resistance, which generates heat.
These serve as the high-current dump grounds for the fuel injectors and ignition coils. A high resistance reading here (>0.5 Ohms to the negative battery terminal) causes weak ignition spark and fuel delivery failure. Diagnostic Jumper Subsystem (OBD-1 Code Reading)
Ignition coil/igniter feed or trigger (IGT / IGF / IGN COIL)
Check the lines for system voltage during engine cranking. If voltage is missing, inspect the primary EFI fuse and the main relay contacts. If power is verified but the system remains unresponsive, check for proper crankshaft speed pulses across the N+ and N- terminal junctions. Without clear rotational feedback, the processor will not trigger the grounding pathways for the ignition coils or fuel injectors. Corrupted Sensor Readings
When troubleshooting live circuits on your Hijet, never pierce the wires with crude probes, as this introduces moisture and eventual green-wire corrosion. Instead, use a digital multimeter (DMM) and a thin backprobe pin.
: Corroded ground wires increase electrical resistance, which generates heat. daihatsu hijet efse ecu pinout hot
These serve as the high-current dump grounds for the fuel injectors and ignition coils. A high resistance reading here (>0.5 Ohms to the negative battery terminal) causes weak ignition spark and fuel delivery failure. Diagnostic Jumper Subsystem (OBD-1 Code Reading) When troubleshooting live circuits on your Hijet, never
Ignition coil/igniter feed or trigger (IGT / IGF / IGN COIL) These serve as the high-current dump grounds for
Check the lines for system voltage during engine cranking. If voltage is missing, inspect the primary EFI fuse and the main relay contacts. If power is verified but the system remains unresponsive, check for proper crankshaft speed pulses across the N+ and N- terminal junctions. Without clear rotational feedback, the processor will not trigger the grounding pathways for the ignition coils or fuel injectors. Corrupted Sensor Readings