WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
Install the blower motor relay.
Connect the electrical connector.
Install the blower motor relay (1) to the retaining bracket.
Connect the negative battery cable.
Fig 1: Installing Blower Motor Relay To Retaining Bracket