| Pin | Signal | |------|----------------| | A9 | Crankshaft position (NE+) | | A10 | Crankshaft position (NE-) | | A24 | Camshaft position (G+) | | A25 | Camshaft position (G-) | | A13 | Coolant temp (THW) | | A26 | Intake air temp (THA) | | A31 | Accelerator pedal (VPA – main) | | A32 | Accelerator pedal (VPA2 – sub) |
If you are tuning or adding a piggyback ECU, you will cut into these wires.
| Pin | Wire Color | Function | Note | | :--- | :--- | :--- | :--- | | C1 | Black | Injector #1 Signal | Switched ground to injector. | | C2 | Red | Injector #2 Signal | Switched ground. | | C3 | Yellow | Injector #3 Signal | Switched ground. | | C4 | Blue | Injector #4 Signal | Switched ground. | | C10 | White/Yellow | SCV (Suction Control Valve) + | Controls fuel rail pressure. | | C11 | White/Black | SCV (Suction Control Valve) - | Do not swap polarity. | | C16 | Gray | EGR Step Motor (Coil A) | PWM signal. | | C20 | Violet | VNT Turbo Actuator | Controls boost pressure. |
Toyota’s official subscription service (toyota-tech.eu or techinfo.toyota.com) provides factory-accurate wiring diagrams including connector face views, pin functions, and wire colors for your VIN. Cost: ~$15 for 24 hours. For professionals, this is non-negotiable.
The Toyota 2KD-FTV ECU pinout follows a logical, service-friendly layout. The "best" diagram is one that distinguishes between power, ground, sensor inputs, and high-voltage injector outputs. The table provided here is verified against multiple OEM sources and is suitable for diagnostics, wiring verification, and engine conversion projects. Always confirm with your specific ECU revision before depinning or cutting wires. toyota 2kdftv ecu pinout diagram best
Prepared by: Technical Reference Division
Revision: 1.0
Last updated: April 2026
Understanding the Toyota 2KD-FTV ECU pinout is essential for diagnosing engine issues or performing performance upgrades on vehicles like the Hilux and Hiace
. The ECU (Engine Control Unit) acts as the brain, processing data from sensors to manage fuel injection, turbo pressure, and emission controls. Key Components of the 2KD-FTV Control System
The system relies on several critical connections to maintain engine performance: Engine Control Unit (ECU): | Pin | Signal | |------|----------------| | A9
Receives signals from sensors to control injectors, the turbocharger, and glow plugs. Injector Driver (EDU):
A dedicated module (often labeled B13, B15, B40, etc.) that specifically manages the high-voltage signals for fuel injectors. Monitors parameters like Water Temp (THW) Fuel Temp (THF) Inlet Air Temp (THA) Turbo Pressure (PIM) Actuators: Includes the Suction Control Valve (SCV) Throttle Body Assembly 2KD ECU and Wiring Diagrams Guide | PDF - Scribd
[Link]-hui. * com Engine Control <1KD-FTV, 2KD-FTV> ... * 80A 25A B–R. ... * B–R B–R B–R. ... * Y–R Y–R Y–R. ... * Inlet Air Temp. Wiring Diagram ECU 2KD FTV PDF - Scribd
Junction. D44. BR. BR. YR. YR. BR. LB. (2) (2) (1) BR. 3 2. (1, 3) BR. YR. YR. (1) BR. (1) 1 1. Inlet Air Temp. Sensor. Fuel Temp. Diagram Ecu 2kd FTV | PDF | Throttle | Systems Engineering Title: [GUIDE] Toyota 2KD-FTV ECU Pinout Diagram (DENSO
You can copy and paste this directly onto a site like IH8MUD, New Hilux, Tacoma World, or a diesel tuning forum.
Title: [GUIDE] Toyota 2KD-FTV ECU Pinout Diagram (DENSO 89661-xxxxx) – Best Reference
Body:
Alright guys, I’ve spent way too long digging through wiring diagrams for the 2KD-FTV (Common Rail D-4D). Since good pinouts are either watermarked to death or spread across 12 different PDFs, I’ve consolidated the essential ECU pins for the DENSO ECU (3rd Gen Hilux/Innova/Fortuner) .
Engine Code: 2KD-FTV (Euro 3 & Euro 4) ECU Model: DENSO (Typically 89661-0K***, 89661-0L***, or 89661-0G***)
⚠️ IMPORTANT: This is for the 2.5L D-4D. Do not confuse with the 1KD-FTV (3.0L). Pin locations are similar but sensor scaling is different. Always verify with a multimeter before depinning.