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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1341 (Hybrid Controls - Introduction (1 Of 2)) >> Description and Operation >> Drive Motor Generator Control Module Description and Operation >> Motor Control Module (MCM) 1 and 2 >> Operating Functions

Operating Functions

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Each MCM operates the applicable electric motor generator based upon HPCM commands. Each MCM controls the speed, direction and output torque of its respective traction motor through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors (IGBTs).

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