Toyota 89661 Ecu Pinout |verified|

You can find power, ground, and 5V reference. But you cannot identify injector drivers, ignition outputs, or O2 heater grounds without the correct pinout document. Injector drivers look like ground until the ECU pulses them.

Common setups include 34-22-16-28 pin combinations. toyota 89661 ecu pinout

The 89661 prefix identifies the core Engine Control Unit (ECU) across various Toyota models (e.g., Camry, Corolla, Land Cruiser). The subsequent digits (e.g., 89661-50241) specify the exact vehicle and engine configuration. You can find power, ground, and 5V reference