!link! - Toyota 89661 Ecu Pinout

Pins are typically numbered from top-right to bottom-left when looking at the ECU header.

Below is a concise, general overview for the Toyota 89661 ECU connector family (commonly used in many Toyota models for engine/ECM and immobilizer-related connections). Connector pinouts can vary by model year, engine type, and region—use this only as a starting reference and verify against the vehicle’s factory service manual or wiring diagrams for the specific VIN. toyota 89661 ecu pinout

The official source for late-model (post-1996) USDM vehicles. Pins are typically numbered from top-right to bottom-left

: 5V reference power for sensors like the TPS or MAP. toyota 89661 ecu pinout