Suburban 1/2 Ton 2WD V8-5.3L VIN T (2004)
Engine Control Module: Description and Operation
Throttle Actuator Control (Tac) System
POWERTRAIN CONTROL MODULE
The powertrain control module (PCM) determines the driver's intent, then calculates the appropriate throttle response. This information is sent to the
throttle actuator control (TAC) module through a dedicated serial data line.
