Below is a that shows the major waypoints of the brake‑line system. It’s not a copyrighted OEM drawing—just a visual aid you can draw on a napkin.
The brake line system on the 2001 Tahoe is a standard front/rear split routed through an ABS module. While the design is robust, the age of the vehicle dictates that the steel lines be inspected thoroughly for corrosion. Replacing corroded lines with copper-nickel alternatives is the recommended service procedure to ensure longevity. 2001 tahoe brake line diagram