Daihatsu Hijet Efse Ecu Pinout Hot -

Signal from the MAP sensor to determine engine load.

The Heated Oxygen Sensor (HO2S) uses a high-current heater circuit. When the sensor insulation fails, it shorts the heater wire to the sensor signal wire, backfeeding voltage into ECU pin .

– use verified sources first:

Connect a jumper wire between and Plug 1, Pin 1 (E1) . Turn the vehicle ignition to the ON position. daihatsu hijet efse ecu pinout hot

If you are diagnosing a no-start condition on a Hijet Kei truck or setting up a standalone wiring harness for a buggy project, you must mimic the vehicle's electrical system to activate the ECU. Follow this procedure: Step 1: Establish Grounding

Are there any on the ECU board or plug pins? Share public link

| Pin | Wire Color | Function | Notes (Hot = live voltage/trigger) | |------|------------|------------------------|--------------------------------------------| | 1 | Black/Yellow | +12V Battery (constant) | Main ECU power | | 2 | Black/White | Ground (sensor return) | Sensor ground | | 3 | Black/Red | Ground (power ground) | ECU main ground | | 4 | Yellow/Black | Injector (+) | 12V from main relay (hot in RUN/START) | | 5 | Blue/Red | Ignition signal (igniter) | From distributor pickup | | 6 | Green/White | TPS signal (throttle position) | 0.5V – 4.5V | | 7 | Red | Check Engine Light (CEL) | Switched ground to lamp (active low) | | 8 | Green/Black | Fuel pump relay control | Grounds relay to turn pump on | | 9 | Yellow/Green | Coolant temp sensor | Resistance to ground | | 10 | White/Red | Intake air temp (IAT) | Resistance to ground | | 11 | Blue/White | MAP sensor signal (manifold pressure) | ~1.5V idle, ~4V WOT | | 12 | Yellow | Power steering input (if equipped) | 12V when steering load | | 13 | Black/White | Ground (sensor return) | | | 14 | Black | Ground (power ground) | | | 15 | Black/Yellow | +12V (main relay feed) | | | 16 | Green/Red | Injector trigger (ground side) | ECU pulses ground | | 17 | Red/Blue | Ignition timing adjustment (diagnostic) | Jumper to ground to set base timing | | 18 | White/Black | Tachometer output | To cluster / diagnostic | | 19 | Blue | Distributor NE (crank position) | Primary crank signal | | 20 | Yellow/Blue | Distributor G (cylinder identification) | Sync signal | | 21 | White/Green | Starter signal (from ignition switch) | 12V in START (hot crank) | | 22 | Red/Black | Alternator L terminal sense | | | 23 | Green | VSS (vehicle speed sensor) | 4 pulses per meter (reed switch) | | 24 | – | Not used | | | 25 | Blue/Red | O2 sensor signal (if equipped) | 0.1–0.9V | | 26 | Red/Yellow | A/C request input | 12V from A/C switch | | 27 | Black/Yellow | +12V (ignition switch – RUN/START) | Hot in RUN/START | | 28 | Black/White | Ground (ECU case ground) | | | 29 | White/Red | ISC valve (idle speed control) – coil 1 | | | 30 | White/Black | ISC valve – coil 2 | | | 31 | Red/Green | EGR control solenoid (if equipped) | | | 32 | Green/Yellow | Purge VSV (evap) | | | 33 | Red | Diagnostic terminal (Check connector) | STI – test mode | | 34 | White | Diagnostic data output (MIL flash code) | | | 35 | Black/Red | +5V sensor reference | To MAP, TPS, coolant temp | | 36 | Black/Green | Ground (sensor return) | | Signal from the MAP sensor to determine engine load

The EFSE ECU uses a single, dense 60-pin connector (Denso 90980-11160). Below is the critical pinout focusing on .

Temperature sensor inputs for Engine Coolant and Intake Air respectively.

: Typically manages power distribution, grounds, fuel injector triggers, and primary ignition outputs. – use verified sources first: Connect a jumper

#10, #20, #30 (Injectors): The ECU triggers the fuel injectors by grounding these pins.

This terminal maintains unswitched, continuous power straight from the battery source to preserve the internal RAM fault code data logs. If this path breaks, the ECU drops its fuel trims every time you turn off the vehicle. 2. Air Charge and Load Assessment (PIM / MAP)

If your diagnostic checks reveal a completely dead pin or zero voltage output, you may need a replacement unit. You can explore available OEM components on marketplaces like eBay's Daihatsu S210P Engine Control Units or consult enthusiast repositories such as the Live To Dai EF Engine Technical Forum for peer-reviewed model variations.

The EF-SE engine differs from its twin-cam sibling (the EF-VE) by utilizing a Single Overhead Camshaft (SOHC) configuration featuring two valves per cylinder. It employs a distributorless, waste-spark digital ignition system or an integrated distributor setup, depending on the production year and market region.

Signal input from the Engine Coolant Temperature (ECT) sensor. Intake Air Temperature Signal input from the Intake Air Temperature (IAT) sensor. OX Oxygen Sensor Feedback loop input from the exhaust O2cap O sub 2 IDL Idle Signal Throttle position indicator tracking closed-throttle state. SPD Speed Sensor Vehicle speed sensor input from the instrument cluster. KNK Knock Sensor