1kz Ecu Pinout (RELIABLE)

Later models feature transponder key immobilizers built into the ECU, preventing engine start if the correct key isn't used. Swapping ECUs requires reprogramming the immobilizer or using a matching key and ECU set, or professional immobilizer bypass.

Water Temperature Sensor (ECT) signal. Adjusts cold start fueling and glow plug duration. THA: Intake Air Temperature (IAT) sensor signal. Auxiliary & Chassis Inputs 1kz ecu pinout