1kz Ecu Pinout -

| Version | Vehicle Examples | Key Features | |--------|----------------|--------------| | (pre-1996) | Hilux Surf, early Hiace, some Prado | 3-plug ECU, basic diagnostics, 2-row main connector | | Late (1996-2002+) | Prado 90/95, later Hiace, Granvia | 4-plug ECU, OBD-II support (JDM or Euro), immobilizer in some markets |

As Tom continued to study the diagrams, he encountered a group of pins related to the engine's vital signs: 1kz ecu pinout

: Spill Control Valve (critical for fuel injection timing and starting). Performance & Troubleshooting | Version | Vehicle Examples | Key Features

These terminals provide the primary operating voltage and return paths for the ECU and its actuators. +B / +BF (Power): Switched 12V power from the EFI relay. BATT (Battery): Constant 12V supply for ECU memory. IGSW (Ignition): Detects when the ignition switch is in the "ON" position. M-REL (Main Relay): Output signal to trigger the EFI main relay. E1 / E01 / E02 (Ground): Main chassis and engine grounds. E2 (Sensor Ground): BATT (Battery): Constant 12V supply for ECU memory