Ecu Pinout - Toyota 89661

: Forums like 2nd Gen 4Runner Mafia frequently host diagrams for units such as 89661-35570 . 🛠️ Common Critical Terminals

Most factory manuals show the ECU Header (the pins on the computer itself). If you are looking at the Wiring Harness Plug , the image will be a mirror image. toyota 89661 ecu pinout