If you describe exactly what problem you're trying to solve (e.g., "no injector pulse," "ECU not turning on," "no spark"), I can help you diagnose safely without a raw pinout.
Stay safe – car electronics can be unforgiving.
The Daihatsu Hijet equipped with the EF-SE engine uses a specific Engine Control Unit (ECU) pinout configuration common in various S200-series mini trucks and vans manufactured between 1999 and 2009. These systems typically feature a multi-plug connector setup—often a 22-pin or similar multi-row configuration—to manage fuel injection, ignition, and sensor feedback. Core EF-Series ECU Pin Functions
While specific wire colors can vary between models like the Hijet S200P (truck) and S200V (van), the EF-series ECUs generally follow this standardized pin logic for essential engine operation: Power and Ground
+B / +B2: Main power supply from the EFI relay, active when the ignition is ON.
BATT: Constant battery backup power used to store diagnostic codes and memory.
E1 / E01: Main ECU grounds, typically connected to the intake manifold or engine block. Sensor Inputs
PIM (Pressure Intake Manifold): Signal from the MAP sensor to determine engine load.
THW (Water Temperature): Input from the coolant temperature sensor for fuel enrichment.
VC: 5V reference power supply provided by the ECU to the sensors.
N+ / NE: Crankshaft or distributor signal used to calculate engine RPM and timing. daihatsu hijet efse ecu pinout hot
OX: Signal from the Oxygen sensor for closed-loop fuel control. Control Outputs #10 / #20: Injector control pulses.
IGT / IGF: Ignition trigger and feedback signals to the ignition coils.
FC (Fuel Control): Signal sent to the fuel pump relay to prime and run the pump.
W (Warning): Controls the "Check Engine" light (Malfunction Indicator Lamp) on the dashboard. Quick Diagnosis Guide
If you are troubleshooting a "no-start" or "no-spark" condition on an EF-SE Hijet, verify these critical pins:
Check Power: Use a multimeter to confirm +B has battery voltage when the key is ON.
Verify Ground: Ensure E1 has less than 0.1 ohms of resistance to the vehicle chassis.
Signal Testing: During cranking, the N+ (NE) pin should show a pulsing voltage signal; without this, the ECU will not trigger injectors or spark.
Detailed technical manuals and wiring diagrams for the Hijet S200 series can be found on specialist platforms like JDM FSM or through community resources such as the Live To Dai technical forums .
Are you currently troubleshooting a specific electrical issue, such as a no-start condition or a sensor error code? EF Engine ECU Pinouts - DIY or TECHNICAL - Live To Dai If you describe exactly what problem you're trying
EF Engine ECU Pinouts * E1. * VC. * PIM. * THW. * N+ * IDL. * SPD. * Blank. * Blank. * Blank. Live To Dai
Daihatsu EJ-VE Engine ECU Manual | PDF | Throttle | Ignition System
The Daihatsu Hijet EF-SE ECU typically uses a multi-connector setup (often 3 plugs for 2004–2006 models) that manages fuel injection, ignition timing, and various engine sensors. Common EF-Engine ECU Pin Identification
While specific pin locations can vary by production year and chassis (e.g., S210), standard EF-series engine management often includes these primary signals: Sensor Inputs: PIM: Manifold Absolute Pressure (MAP) sensor signal. THW: Engine coolant temperature sensor signal. VC: 5V constant supply for sensors.
IDL: Idle switch signal (part of the throttle position sensor). SPD: Vehicle speed sensor input. Power and Ground: E1 / Earth: Main ECU grounding pins. +B / Power Supply: Battery voltage when ignition is ON. BATT: Backup power supply, always active for memory. Actuators and Controls:
#10, #20: Fuel injector control pins for specific cylinders.
OCV: Oil Control Valve for variable valve timing (if equipped). W / CEL: Check Engine Light (Warning light) control. Key Resources for Detailed Pinouts
For specific "paper" diagrams or high-resolution layouts, enthusiasts and mechanics often reference community-driven guides:
Live To Dai: A dedicated technical forum with specific EF Engine ECU Pinout threads and community-shared diagrams.
Scribd Technical Guides: Hosts comprehensive PDF manuals such as the Daihatsu ECM Wiring and Pinout Guide which, while often focused on models like the Feroza, shares similar EF-series pin logic. Igniter test (common failure):
Kei Truck Community: The r/keitruck Reddit community frequently shares user-captured photos of wiring harnesses and hand-drawn pinouts for older Hijet models.
Do you need the pin-by-pin color codes for a specific connector plug (e.g., the 22-pin vs. 26-pin plug)? EF Engine ECU Pinouts - DIY or TECHNICAL - Live To Dai
EF Engine ECU Pinouts * E1. * VC. * PIM. * THW. * N+ * IDL. * SPD. * Blank. * Blank. * Blank. Live To Dai
Daihatsu ECM Wiring and Pinout Guide | PDF | Power Supply - Scribd
Igniter test (common failure):
Coolant temp sensor:
If you own a Daihatsu Hijet (S85, S86, S100, or S110 chassis) equipped with the legendary EFSE 650cc inline-3 cylinder engine, you already know the struggle. This little kei truck is a workhorse, but when things go wrong, they often go wrong while the engine is hot—that is, at operating temperature or under load.
Searching for the term "Daihatsu Hijet EFSE ECU Pinout Hot" typically means one of three things:
This article provides the complete 36-pin ECU pinout, explains which circuits are prone to heat-related failure, and offers advanced hot-wiring diagnostic procedures.
| Function | Typical Wire Color | Notes | |----------|-------------------|-------| | Battery +12V (backup) | White/Red or White | Constant power | | Ignition +12V | Black/Yellow | Switched | | Main relay coil | Yellow/Black or Green/Black | ECU grounds to trigger | | ECU grounds | Black/White or Brown | Multiple pins – essential |