Removal (Auxiliary - Avalanche, Escalade, Suburban, Tahoe & Yukon)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Remove the auxiliary rear HVAC control assembly. See HVAC CONTROL ASSEMBLY (REAR AUXILIARY) . Remove the auxiliary HVAC control processor from the bracket. See Fig 1. Remove the cover from the auxiliary HVAC control processor. Remove the auxiliary HVAC control processor from the box. See Fig 2.