Data Communication 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: Low Speed Bus Circuit Schematic - 1 of 3

GM2064935

Courtesy of GENERAL MOTORS CORP.

Fig 2: Low Speed Bus Circuit Schematic - 2 of 3

GM2064937

Courtesy of GENERAL MOTORS CORP.

Fig 3: Low Speed Bus Circuit Schematic - 3 of 3

GM2064939

Courtesy of GENERAL MOTORS CORP.

Fig 4: High Speed Bus Circuit Schematic - 1 of 6 (except MEX/HP2)

GM2064942

Courtesy of GENERAL MOTORS CORP.

Fig 5: High Speed Bus Circuit Schematic - 2 of 6 (except MEX/HP2)

GM2064945

Courtesy of GENERAL MOTORS CORP.

Fig 6: High Speed Bus Circuit Schematic - 3 of 6 (Diesel)

GM2064947

Courtesy of GENERAL MOTORS CORP.

Fig 7: High Speed Bus Circuit Schematic - 4 of 6 (MEX)

GM2064950

Courtesy of GENERAL MOTORS CORP.

Fig 8: High Speed Bus Circuit Schematic - 5 of 6 (HP2)

GM2165233

Courtesy of GENERAL MOTORS CORP.

Fig 9: High Speed Bus Circuit Schematic - 6 of 6 (HP2)

GM2165234

Courtesy of GENERAL MOTORS CORP.

Fig 10: Serial Data Communication Enable Circuit Schematic

GM2064954

Courtesy of GENERAL MOTORS CORP.

Fig 11: Accessory Wakeup Serial Data & Linear Interconnect Network Circuit Schematic (LIN)

GM2064958

Courtesy of GENERAL MOTORS CORP.

Fig 12: Powertrain Expansion Bus Circuit Schematic (HP2)

GM2165236

Courtesy of GENERAL MOTORS CORP.

Fig 13: Serial Data Gateway (SDG) Module Circuit Schematic (HP2)

GM2165237

Courtesy of GENERAL MOTORS CORP.