1kz Ecu Pinout !new! Jun 2026

If you have a late 4-plug ECU (2002+), look for a small 4-pin connector typically labeled “CODE” or “IMMO.”

Before you start probing wires, identify your ECU part number. While the pinouts are largely consistent across the 1KZ-TE range, there are slight variations between automatic and manual transmissions, and early vs. late models. 1kz ecu pinout