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Daihatsu Hijet Efse Ecu Pinout Hot 【2025-2027】

: These are the switched 12V power supply pins.

| | Function | Signal Type | Notes | | :--- | :--- | :--- | :--- | | Power & Ground | | B+ (varies) | Battery constant power | 12V DC | Maintains ECU memory | | +B1 (varies) | Main relay output | 12V DC | Powers injectors and sensors | | IG1 (varies) | Ignition-switched power | 12V DC | Typically 7.5A fuse protected | | E1, E2 | ECU ground | Ground | Multiple grounds; poor connection causes random faults | | Sensors | | VCC1/VCC2 | Sensor reference voltage | 5V DC | For TPS, MAP, and temperature sensors | | VTA (varies) | Throttle position sensor signal | 0-5V analog | Idle: ~0.5V, WOT: ~4.5V | | PIM (varies) | MAP sensor signal | 0-5V analog | Vacuum-dependent voltage | | THW (varies) | Coolant temperature sensor | Varies with temp | High voltage when cold | | THA (varies) | Intake air temperature | Varies with temp | Integrated into air flow meter on some models | | OX1 (varies) | Oxygen sensor (primary) | 0-1V fluctuating | Switches rapidly when in closed loop | | Ne+ (varies) | Crankshaft position sensor (+) | AC sine wave | Essential for engine running | | Ne- (varies) | Crankshaft position sensor (-) | AC sine wave ground return | | | G1 or G2 (varies) | Camshaft position sensor | Digital pulse | For sequential injection timing | | KNK (varies) | Knock sensor | AC signal | Some EF-SE variants may omit this | | Actuators | | #10 (varies) | Fuel injector bank 1 | Switched ground | Pulse width modulated by ECU | | #20 (varies) | Fuel injector bank 2 | Switched ground | (If second injector driver exists) | | IGT (varies) | Ignition timing signal | 5V digital pulse | To igniter unit | | IGF (varies) | Ignition confirmation signal | Digital pulse | From igniter back to ECU | | FPR (varies) | Fuel pump relay control | Switched ground | Activates fuel pump relay | | Communications & Others | | 118 | Tachometer signal output | Digital pulse (12V) | Critical for gauge swaps | | W (varies) | Check engine light (MIL) | Switched ground | Illuminates warning lamp | | TC (varies) | Diagnostic connector (Trouble Code) | Digital | For reading flash codes | | SIL (varies) | Serial communication line | Digital | For diagnostic scanners |

The following layout is based on common EF-series ECU configurations (22-pin and 12-pin or 26-pin and 16-pin variants). Live To Dai Typical Voltage/Condition Main Power Supply Battery Voltage (Ignition ON) ECU Earth/Ground 0 Volts (All times) Manifold Absolute Pressure (MAP) 3.2 – 3.8V (Ignition ON, Engine OFF) Water Temp Sensor Signal varies with temperature Intake Air Temp Sensor Signal varies with temperature Sensor Reference Voltage Typically 5V Oxygen Sensor 0 – 1V oscillating Idle Switch (Throttle) < 1.0V (Throttle closed) Vehicle Speed Sensor Pulses while vehicle is moving Starter Signal Battery Voltage (Cranking only) Key Diagnostic Terminals W (Check Engine Light): daihatsu hijet efse ecu pinout hot

For models like the S200 series, technicians look for these specific "hot" (power) and ground pins to diagnose "no start" conditions: : Main battery power supply to the ECU.

/ BATT: Permanent 12V supply to the ECU (often turns hot if the connector is loose). IGcap I cap G / IGN: Switched 12V ignition power. E01cap E 01 E02cap E 02 : These are the switched 12V power supply pins

The EF-SE (Electronic Fuel Injection - Stable Economy) system manages fuel injection, ignition timing, and emission controls to balance performance and fuel efficiency. The ECU is the brain, receiving inputs from various sensors (TPS, MAP, Crankshaft) and commanding actuators (Injectors, Ignition Coil, Idle Speed Control).

Do not pull on the wires themselves; press the locking lever and pull the plastic housing. Moisture Protection: / BATT: Permanent 12V supply to the ECU

The ECU contains internal transistors (drivers) that send power to various components like the fuel pump relay, Idle Air Control Valve (IACV), or injectors. If one of these components suffers a short circuit or draws excessive current, the corresponding transistor in the ECU will overload and generate intense heat.

A failing oxygen sensor (lambda sensor) is a common EF-SE issue. Symptoms include excess fuel consumption (increase by up to 15%), thick black exhaust fumes, and sluggish acceleration.

If you are undertaking a heavy diagnostic or engine rebuild, having access to official literature and community forums can save you hours of guesswork.

: These are the switched 12V power supply pins.

| | Function | Signal Type | Notes | | :--- | :--- | :--- | :--- | | Power & Ground | | B+ (varies) | Battery constant power | 12V DC | Maintains ECU memory | | +B1 (varies) | Main relay output | 12V DC | Powers injectors and sensors | | IG1 (varies) | Ignition-switched power | 12V DC | Typically 7.5A fuse protected | | E1, E2 | ECU ground | Ground | Multiple grounds; poor connection causes random faults | | Sensors | | VCC1/VCC2 | Sensor reference voltage | 5V DC | For TPS, MAP, and temperature sensors | | VTA (varies) | Throttle position sensor signal | 0-5V analog | Idle: ~0.5V, WOT: ~4.5V | | PIM (varies) | MAP sensor signal | 0-5V analog | Vacuum-dependent voltage | | THW (varies) | Coolant temperature sensor | Varies with temp | High voltage when cold | | THA (varies) | Intake air temperature | Varies with temp | Integrated into air flow meter on some models | | OX1 (varies) | Oxygen sensor (primary) | 0-1V fluctuating | Switches rapidly when in closed loop | | Ne+ (varies) | Crankshaft position sensor (+) | AC sine wave | Essential for engine running | | Ne- (varies) | Crankshaft position sensor (-) | AC sine wave ground return | | | G1 or G2 (varies) | Camshaft position sensor | Digital pulse | For sequential injection timing | | KNK (varies) | Knock sensor | AC signal | Some EF-SE variants may omit this | | Actuators | | #10 (varies) | Fuel injector bank 1 | Switched ground | Pulse width modulated by ECU | | #20 (varies) | Fuel injector bank 2 | Switched ground | (If second injector driver exists) | | IGT (varies) | Ignition timing signal | 5V digital pulse | To igniter unit | | IGF (varies) | Ignition confirmation signal | Digital pulse | From igniter back to ECU | | FPR (varies) | Fuel pump relay control | Switched ground | Activates fuel pump relay | | Communications & Others | | 118 | Tachometer signal output | Digital pulse (12V) | Critical for gauge swaps | | W (varies) | Check engine light (MIL) | Switched ground | Illuminates warning lamp | | TC (varies) | Diagnostic connector (Trouble Code) | Digital | For reading flash codes | | SIL (varies) | Serial communication line | Digital | For diagnostic scanners |

The following layout is based on common EF-series ECU configurations (22-pin and 12-pin or 26-pin and 16-pin variants). Live To Dai Typical Voltage/Condition Main Power Supply Battery Voltage (Ignition ON) ECU Earth/Ground 0 Volts (All times) Manifold Absolute Pressure (MAP) 3.2 – 3.8V (Ignition ON, Engine OFF) Water Temp Sensor Signal varies with temperature Intake Air Temp Sensor Signal varies with temperature Sensor Reference Voltage Typically 5V Oxygen Sensor 0 – 1V oscillating Idle Switch (Throttle) < 1.0V (Throttle closed) Vehicle Speed Sensor Pulses while vehicle is moving Starter Signal Battery Voltage (Cranking only) Key Diagnostic Terminals W (Check Engine Light):

For models like the S200 series, technicians look for these specific "hot" (power) and ground pins to diagnose "no start" conditions: : Main battery power supply to the ECU.

/ BATT: Permanent 12V supply to the ECU (often turns hot if the connector is loose). IGcap I cap G / IGN: Switched 12V ignition power. E01cap E 01 E02cap E 02

The EF-SE (Electronic Fuel Injection - Stable Economy) system manages fuel injection, ignition timing, and emission controls to balance performance and fuel efficiency. The ECU is the brain, receiving inputs from various sensors (TPS, MAP, Crankshaft) and commanding actuators (Injectors, Ignition Coil, Idle Speed Control).

Do not pull on the wires themselves; press the locking lever and pull the plastic housing. Moisture Protection:

The ECU contains internal transistors (drivers) that send power to various components like the fuel pump relay, Idle Air Control Valve (IACV), or injectors. If one of these components suffers a short circuit or draws excessive current, the corresponding transistor in the ECU will overload and generate intense heat.

A failing oxygen sensor (lambda sensor) is a common EF-SE issue. Symptoms include excess fuel consumption (increase by up to 15%), thick black exhaust fumes, and sluggish acceleration.

If you are undertaking a heavy diagnostic or engine rebuild, having access to official literature and community forums can save you hours of guesswork.