Drum Brake System Description and Operation
System Component Description
The drum brake system consists of the following:
Drum Brake Shoes
Applies mechanical output force, from hydraulic brake wheel cylinders,
to friction surfaces of brake drums.
Brake Drums
Uses mechanical output force applied to fric ...
Throttle Actuator Control (TAC) System Description
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The engine control module (ECM) is the control center for the throttle actuator
control (TAC) system. ...
Drive Range, First Gear (Gen 2)
As the vehicle speed increases, the transmission control module (TCM) receives
input signals from the automatic transmission input and output speed sensors, throttle
position sensor and other vehicle sensors to determine the precise moment to de-energize
or ?urn OFF?the shift solenoid, and to ...