The Toyota 2KD-FTV engine is a legend of reliability. Found under the hood of the global Hilux (AN120), Fortuner, and Hiace, this 2.5-liter D-4D common-rail turbo diesel is the workhorse of the developing world. It is not the fastest, nor the quietest, but it is famously resilient.
However, when things do go wrong—or when you want to extract more performance—you will find yourself staring at the engine’s brain: the ECU (Engine Control Unit) . To diagnose a no-start, wire in a piggyback tuner, or fix a CAN bus error, you need a map. You need the 2KD-FTV ECU pinout diagram. toyota 2kd-ftv ecu pinout diagram
This article provides a deep dive into the Bosch EDC17C41 (and similar variants) ECU used on the 2KD-FTV. We’ll cover pin functions, sensor voltages, common troubleshooting points, and how to read the diagram like a professional. Unlocking the Brain of the Hilux: The Complete
This is where the ECU "feels" the engine. Fault 2: P0335 – Crankshaft Position Sensor Circuit
| Pin | Wire Color | Signal | Description / Diagnostic Tip | | :--- | :--- | :--- | :--- | | B1 | Red/Blue | PIM | Manifold Absolute Pressure (MAP) – 0.5V idle, 4.5V boost | | B2 | Yellow/Black | CAL | Accelerator Pedal Position Sensor 1 (Main) | | B3 | Blue/Yellow | VPA | Accelerator Pedal Position Sensor 2 (Sub) | | B5 | Green/White | THW | Engine Coolant Temp (ECT) – ~2.5V cold, 0.5V hot | | B6 | Blue/Black | THA | Intake Air Temp (IAT) – Inside MAF sensor | | B10 | White | VG | Air Flow Meter (MAF) Frequency signal | | B12 | Red/Black | NE+ | Crankshaft Position Sensor (CKP) – 2.5V AC at crank | | B13 | Blue | NE- | CKP Ground | | B14 | Green | G+ | Camshaft Position Sensor (CMP) | | B15 | Yellow/Red | G- | CMP Ground | | B20 | Pink | STP | Brake Switch Signal (Stops cruise control) | | B22 | Light Green | NSW | Neutral Start Switch (Park/Neutral) | | B30 | Purple/White | VCM | Fuel Temperature Sensor (Inside SCV) | | B35 | Gray | KNK | Knock Sensor (Microphone signal for diesel knock) |
These are located on the larger plug (usually Plug G).
| Pin Number | Wire Color (Typ) | Function | Description | | :--- | :--- | :--- | :--- | | G-1 | White/Red | +B (Battery) | Constant 12V from ECU-IG Fuse/Relay | | G-2 | White/Black | E01 (Ground) | Power Ground (Connects to Body/Block) | | G-3 | White/Black | E02 (Ground) | Power Ground (Connects to Body/Block) | | G-4 | White | +B2 (Battery) | Constant 12V (Backup Power) | | G-5 | Black | E1 (Signal Ground) | Sensor Ground (Critical for accurate data) | | G-6 | Brown | EFI Main Relay | Grounds the relay coil to turn on ECU |