| Pin # | Component | Wire Color | Behavior | | :--- | :--- | :--- | :--- | | | Injector #1 | Pink (P) | Switched ground (from ECU) | | D2 | Injector #2 | Light Blue (L) | Switched ground (from ECU) | | D3 | Injector #3 | Yellow (Y) | Switched ground (from ECU) | | D4 | Ignition Coil (Power Transistor) | White/Blue (W-L) | 12V pulsed signal (RPM) | | D5 | Idle Air Control (IAC) Valve | Red/Black (R-B) | 12V PWM signal |
Remember: these vehicles are over 20 years old. Wire insulation becomes brittle, and ground terminals corrode. Save this guide, print the pinout table, and keep it in your glove box. When your Hijet refuses to start in a loading dock or on a trail, you will know exactly where to put your multimeter probes. daihatsu hijet efse ecu pinout hot
The EFSE ECU uses a single, dense 60-pin connector (Denso 90980-11160). Below is the critical pinout focusing on . Section A: Primary Power & Grounds (The "Must-Haves") | Pin # | Function | Wire Color | Condition | "Hot" Status | | :--- | :--- | :--- | :--- | :--- | | B1 | Battery +12V (Main Backup) | White/Red (W-R) | Always Hot | Constant 12V | | B2 | Ground (ECU Power) | Black/White (B-W) | Always Ground | Chassis Ground | | B3 | Ignition Switch +12V | Black/Red (B-R) | Key ON/START | Switched 12V | | B4 | Ground (Sensor Return) | Brown (BR) | Always Ground | Signal Ground | | B5 | Main Relay Control (EFI Relay) | Yellow/Green (Y-G) | Key ON: 12V out | Switched Output | | Pin # | Component | Wire Color
Use a screwdriver or large test light on ECU pins. Low-current circuits will be destroyed. When your Hijet refuses to start in a
The EFSE engine (659cc, 4-valve, EFI) is a robust powerplant, but its electronics are aging. Corroded connectors and melted power wires are common. In this article, we will dissect the ECU pinout, identify the critical "hot" (12V constant, 12V switched, and sensor reference) wires, and explain how to diagnose them. Before diving into the wiring diagram, let’s establish context. The EFSE engine is a liquid-cooled, inline-3 cylinder, 12-valve SOHC unit found in Hijet vans and trucks from the late 1990s to early 2000s (specifically the S83 chassis). It utilizes electronic fuel injection (EFI) managed by a Denso ECU (typically part numbers beginning with 89661-...).
| Pin # | Sensor | Wire Color | Voltage | | :--- | :--- | :--- | :--- | | | Throttle Position Sensor (TPS) +5V | Light Green (L-G) | 5.0V | | C2 | Manifold Absolute Pressure (MAP) +5V | Light Green/Red (L-R) | 5.0V | | C3 | Crankshaft Position Sensor (Ne) | Shielded White | 2.0V AC (Cranking) |