Throttle Actuator Control
The Throttle Actuator Control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs accelerator pedal position sensing, throttle positioning to meet driver and engine demands, throttle position sensing, internal diagnostics, cruise control functions and manage TAC electrical power consumption.
The TAC system components include the Accelerator Pedal Position (APP) sensor, throttle body assembly, throttle actuator control module and PCM. See Fig 1.