Where is the ecm fuse on Chevy Express van 1999?

In a 1999 Chevy Express van, the ECM (Engine Control Module) fuse is typically located in the fuse box under the dashboard on the driver's side. You may need to remove a cover to access the fuse box. Look for a fuse labeled "ECM" or "PCM" in the fuse diagram located on the cover or in the owner's manual. If you're unsure, consult the manual for specific fuse locations and ratings.