Daihatsu Hijet Efse Ecu Pinout Hot [better] Jun 2026

Once the cooling system reaches full operating temperature, sensor resistance drops, lowering the signal loop value to 0.4V – 0.8V .

When working with a 3-plug unit, locate the (Switched Main), BAT (Continuous Backup), and E1/E2 pins to check for baseline electrical connectivity. daihatsu hijet efse ecu pinout hot

: Connects to the coolant temperature sensor to adjust cold-start enrichment and radiator fan activation. Once the cooling system reaches full operating temperature,

: Regulates the bypass valve or rotary solenoid to maintain target idle target ranges. sensor resistance drops

Have a specific code (like code 12, 14, or 21)? Consult the EFSE diagnostic section for sensor-specific resistance values.