1kz — Ecu Pinout [updated]

Tells the ECU the engine is cranking so it can provide extra fuel for startup.

Essential for reading "Blink Codes" during troubleshooting. Common Troubleshooting Tips 1kz ecu pinout

Constant 12V power used to maintain the ECU’s memory and fault codes. Tells the ECU the engine is cranking so

Essential for cold starts and glow plug timing. 1kz ecu pinout

If using an automatic ECU, this must be grounded or wired to your shifter, or the engine may refuse to rev or start.

Wiring a 1KZ-TE doesn't have to be a nightmare if you tackle it one plug at a time. Always verify your specific ECU part number, as there are slight variations between the Hilux (KZN165) and the Prado (KZJ95) pinouts, particularly regarding the air conditioning and automatic transmission shift points.