WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Use the J 43244
in order to install the headlamp driver module (1) to the underhood fuse block.
Fig 1: View Of Headlamp Driver Module In Underhood Fuse Block
Courtesy of GENERAL MOTORS CORP.
Install the protective covers to the underhood fuse block.