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Engine 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 And Ground Schematic

GM1237529

Courtesy of GENERAL MOTORS CORP.

Fig 2: MIL Control And Serial Data Schematic

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Fig 3: Engine Data Sensors Schematic - Pressure And Temperature

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Fig 4: Engine Data Sensors Schematic - EGR And Vacuum

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Fig 5: Engine Data Sensors Schematic - Pedal Position

GM1237534

Courtesy of GENERAL MOTORS CORP.

Fig 6: Engine Data Sensors Schematic - VSS And Injection Timing Controls

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Fig 7: Engine Data Sensors Schematic - Glow Plug Controls - Except California Emissions

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Fig 8: Engine Data Sensors Schematic - Glow Plug Controls - California Emissions

GM1237537

Courtesy of GENERAL MOTORS CORP.

Fig 9: Fuel Controls Schematic - Fuel Pump Controls

GM1237538

Courtesy of GENERAL MOTORS CORP.

Fig 10: Fuel Controls Schematic - Fuel Temperature Sensor, Fuel Pressure Sensor, And Fuel Heater

GM1237539

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Fig 11: Fuel Controls Schematic - Injector And Pressure Controls

GM1237540

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Fig 12: Fuel Controls Schematic - Fuel Injectors

GM1237541

Courtesy of GENERAL MOTORS CORP.

Fig 13: Controlled/Monitored Subsystem References Schematic

GM1237542

Courtesy of GENERAL MOTORS CORP.

Fig 14: Transmission Controls Schematic - A/T

GM1237543

Courtesy of GENERAL MOTORS CORP.