APDTY 112822 Blower Motor Resistor Speed Control Upgrade Module Auto Temp Control 2003-2009 Hummer H2 04-07 Buick Rainier 2002-2009 Chevrolet Trailblazer or GMC Envoy Olds Bravada 15-80655, 19329838 Upgrade Replacement For The Now Discontinued GM 15-80655, 19329838 Re-wiring instructions included Allows Repair Of Missing Blower Motor Speeds Allows Repair OF Blower That Stays Running On Continuously