Drive by wire , electronic throttle control . What is it you would like to know Mr. Woods ? Can throttle cause car not to crank ? What year Buick ?
STARTING DISABLED SERVICE THROTTLE
Throttle Actuator Control (TAC) System Description for the 4.6L engine or Throttle Actuator Control (TAC) System Description for the 3.8L engine.
Purpose
The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
• Accelerator pedal position (APP) sensing
• Throttle positioning to meet driver and engine demands
• Throttle position sensing
• Internal diagnostics
• Cruise control functions
• Manage TAC electrical power consumption
The TAC system includes the following components:
• The APP sensors
• The throttle body assembly
• The powertrain control module (PCM)
Drive by Wire training
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