Automatic Transmission Controls Schematics

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power, Ground and Brake Switch Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: MIL Control, Serial Data and Torque Signals Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Shift Solenoids and PNP Signals Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Pressure Switches and Fluid Temperature Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 5: Speed Sensors Schematic

Courtesy of GENERAL MOTORS CORP.