FixVault

Automatic Transmission Shift Lock Control Schematics

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Automatic Transmission Shift Lock Control Schematic
GM1251237Courtesy of GENERAL MOTORS CORP.