The pinout is essential for diagnosing engine management issues or performing swaps in vehicles like the Hilux or Land Cruiser Prado. The ECU manages critical signals such as the fuel injection timing, turbo pressure, and various sensor inputs to ensure optimal diesel performance. Common Terminal Configurations (KZN130/1KZ-TE)
The ECU has :
Disclaimer: Always verify pinouts with the factory EWD for your specific vehicle model and year, as Toyota made running changes. 1kz ecu pinout
Water Temperature Sensor (essential for cold start enrichment). PIM: Intake Manifold Pressure (Turbo boost sensor). 3. Output Controls Toyota 1KZ-TE Engine Control Unit (ECU) The pinout
| Pin | Signal | |-----|--------| | D1 | SIL (Serial communication – Toyota scan tool) | | D4 | CG (Chassis ground) | | D5 | SG (Signal ground) | | D7 | K-Line (ISO 9141-2) – if OBD-II compliant | | D9 | +B (Battery power) | | D14 | TC (Diagnosis terminal – same as C7) | | D16 | +B (Switched ignition) | Turbocharger wastegate solenoid / boost control valve output
The 1KZ-TE tach signal is a 0-12V square wave, but some old tachometers (diesel mechanical) expect a different waveform. Install a tachometer adapter (e.g., Dakota Digital SGI-8) or add a 1k ohm pull-up resistor between C3 and A1.