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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1683 (Automatic Transmission - ALLISON - Description And Operation) >> Description and Operation >> Electronic Component Description >> Internal Components

Internal Components

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Several components of the 1000 Series electrical control system are located within the transmission as part of the main control valve body. These components include 3 types of solenoids for controlling the hydraulic action of the valves. They include the PSM and an internal wiring harness that links the internal components with the TCM.