Automatic Transmission Controls Schematics

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

Fig 1: Module Power, Ground, Data Communication, MIL & Stop Lamp Signal Circuit Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: ISS, OSS, TFP, TFT, Pressure Controls & Shift Controls Circuit Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: IMS and Tap Up/Tap Down Circuit Schematic

Courtesy of GENERAL MOTORS CORP.