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The Throttle Actuator Control (TAC) Module is the electronic throttle body on the 2004, 2005, and 2006 3.5L Chevrolet Malibu. This bad boy is located on the intake manifold plenum (the photo above is of the TAC Module).
NOTE: The following simplified TAC system circuit diagrams apply only to the 2004, 2005 and 2006 3.5L Chevrolet Malibu.
Contents of this tutorial at a glance:
NOTE: You can find the TAC system wiring diagram for the 2007-2008 3.5L Chevrolet Malibu here: TAC Circuit Wiring Diagram (2007-2009 3.5L Chevy Malibu And Pontiac G6).