High-speed signals sent to the Injector Driver (EDU) to fire the fuel injectors.

The is a critical technical roadmap for the 2.5-liter D-4D Common Rail diesel engine found in the Toyota Hilux and Toyota Hiace . Understanding this diagram is essential for troubleshooting electrical faults, performing engine swaps, or installing aftermarket performance modules. Core ECU Pinout Functions

Intake manifold pressure (Turbo Pressure) sensor signal. VG: Air flow meter (MAF) signal for air volume measurement. Actuator Controls (Action):

Control signal for the Glow Plug Relay to assist cold starts.

Crankshaft position sensor signals for engine RPM and timing. G+ / G-: Camshaft position sensor signals. THW: Engine Coolant Temperature (ECT) sensor input.

Suction Control Valve signal to regulate high-pressure fuel pump output. Troubleshooting with the Pinout

When using a digital multimeter to diagnose a 2KD-FTV, the pinout diagram allows you to verify voltage at specific terminals. For example, if the engine won't start, a technician might check for power at the pin or a valid RPM signal at the NE+ pin during cranking. Essential Resources