93
June 2013
Electrical Systems Operation & Diagnosis Module (602)
The drive and driven gears of the motor drive assembly and the PRG drive unit mesh together to
transfer the opening or closing force needed to control the PRG. Mechanical output of the motor
to the coupling gear is controlled with an electric clutch.
PRG Drive Unit Motor Coupling Gear PRG Drive Unit Motor Coupling Gear “Close Up”
The motor is connected to a worm gear drive that meshes with a reduction gear. The reduction
gear is keyed to a ferrous metal plate that locks to the output shaft of the clutch assembly. The
PRG control unit controls the ground and the power for the electric clutch.
PRG Drive Unit Driven Gear Coupling Gear Clutch and Reduction Gear
PRG Drive Unit Motor Worm Gear Reduction Gear and Clutch Plate
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