Where is the overdrive relay on 1989 Toyota pickup?

On a 1989 Toyota pickup, the overdrive relay is typically located under the dashboard, near the driver's side, in the fuse box area. You may need to remove the lower dashboard cover to access it. The relay itself is usually a small, rectangular component that can be identified by its labeling. If you're having trouble locating it, consulting the vehicle's service manual can provide additional guidance.