Documented workshop project
3UZ-FE Standalone Harness, OBD-II and Fuse-Relay Test
This walkthrough covers a new 3UZ-FE standalone swap harness and its fuse and relay center. The video documents the supplied connections, live test run, and OBD-II diagnostic scan.
Project dateJanuary 29, 2026
Video length8 min 38 sec
Published on YouTubeJanuary 30, 2026
This walkthrough covers a new 3UZ-FE standalone swap harness and its fuse and relay center. The video documents the supplied connections, live test run, and OBD-II diagnostic scan.
This page records the supplied engine-management package, its connections and the workshop test shown in the video.
This is workshop verification of the supplied system. Donor ECU details, chassis integration and final installation conditions vary by project. These modified engines are used in off-road, track, competition, marine and other custom applications.
