What fuse is used for the ecu?

The fuse used for the Engine Control Unit (ECU) can vary depending on the make and model of the vehicle. Typically, it is a specific amperage fuse located in the vehicle's fuse box, often labeled as "ECU," "Engine," or "ECM." It's crucial to consult the vehicle's owner manual or a repair guide to identify the correct fuse type and rating for the specific vehicle in question. Always ensure to replace a blown fuse with one of the same amperage to avoid electrical issues.