Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If equipped, remove the sound insulator panel. Refer to INSULATOR REPLACEMENT -- INSTRUMENT PANEL (I/P) .
Disconnect the electrical connector at the blower motor.

Fig 1: Disconnect Electrical Connector At Blower Motor
Courtesy of GENERAL MOTORS CORP.
Disconnect the electrical connector (4) from the blower motor control processor (2).
Remove the blower motor control processor retaining screws (3) from the HVAC module (1).
Remove the blower motor control processor (2) from the HVAC module (1).

Fig 2: Removing Electrical Connector, Removing Blower Motor Control Processor, HVAC Module & Screws
Courtesy of GENERAL MOTORS CORP.