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Home >> GMC Truck >> 2003 >> Envoy 2WD V8-5.3L VIN P >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Description and Operation >> Throttle Actuator Control (TAC) System Description

Throttle Actuator Control (TAC) System Description

POWERTRAIN CONTROL MODULE

The PCM determines the driver's intent and then calculates the appropriate throttle response. This information is sent to the TAC module through a dedicated serial data line.
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